[INFO] cloning repository https://github.com/fkz/lambda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fkz/lambda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkz%2Flambda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkz%2Flambda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 740df7f54bfbdc8de3c3139a54fc9cde7202cd34
[INFO] testing fkz/lambda against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkz%2Flambda" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fkz/lambda
[INFO] finished tweaking git repo https://github.com/fkz/lambda
[INFO] tweaked toml for git repo https://github.com/fkz/lambda written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fkz/lambda on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fkz/lambda already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d01756ee8590eaf177ec57b7060444cb6404f5438c6f42711b243faaa7774e23
[INFO] running `Command { std: "docker" "start" "-a" "d01756ee8590eaf177ec57b7060444cb6404f5438c6f42711b243faaa7774e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d01756ee8590eaf177ec57b7060444cb6404f5438c6f42711b243faaa7774e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d01756ee8590eaf177ec57b7060444cb6404f5438c6f42711b243faaa7774e23", kill_on_drop: false }`
[INFO] [stdout] d01756ee8590eaf177ec57b7060444cb6404f5438c6f42711b243faaa7774e23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a280aa362c3d6fc8b9421baeb7d41a7dddb590e1836092cbe25d2df50d69660
[INFO] running `Command { std: "docker" "start" "-a" "7a280aa362c3d6fc8b9421baeb7d41a7dddb590e1836092cbe25d2df50d69660", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling anstyle v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling half v2.4.0
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling clap_builder v4.5.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling rayon v1.9.0
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling plotters v0.3.5
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling clap v4.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling criterion-cycles-per-byte v0.6.0
[INFO] [stderr]    Compiling lambda_calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `marker::PhantomData`, and `os::raw::c_void`
[INFO] [stdout]  --> src/gc_mem.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 3 |     marker::PhantomData,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     os::raw::c_void,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `Ref`
[INFO] [stdout]    --> src/gc_mem.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |         cell::{Cell, Ref, RefCell, UnsafeCell},
[INFO] [stdout]     |                ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:487:53
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn to_vec<'a>(&mut self) -> Vec<(Self::ShortBox<'a>, T)>;
[INFO] [stdout]     |                   - the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 487 |         let mut to_do = self.replace_to_do.to_vec::<'a>();
[INFO] [stdout]     |                                                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:580:62
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn replace<'a>(
[INFO] [stdout]     |                -- the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 580 |                     self.current = a.to_long(&self.replace::<'a>(a, p, a.to_short(&app)));
[INFO] [stdout]     |                                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inner` is assigned to, but never used
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_inner` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/direct_executor.rs:241:36
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 Program::Reference(p) => (),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inner` is never read
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/gc_mem.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             unsafe {
[INFO] [stdout]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:229:17
[INFO] [stdout]     |
[INFO] [stdout] 229 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:262:17
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut other = self.other.get_mut();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/gc_mem.rs:370:57
[INFO] [stdout]     |
[INFO] [stdout] 370 |                 if let super::Program::InternalReplaced(v) = next {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |         let mut f = f;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/gc_mem.rs:678:35
[INFO] [stdout]     |
[INFO] [stdout] 678 |         Program::InternalReplaced(x) => panic!("Internal error"),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::from_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn from_mem_rep(&mut self, program: &super::memory_representation::Program) -> Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::from_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::to_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn to_mem_rep(&self, p: Program) -> super::memory_representation::Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::to_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::initialize`
[INFO] [stdout]    --> src/direct_executor.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn initialize(&mut self, p: Program) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::initialize` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KeepVecTrait<T>` is more private than the item `gc_mem::Allocator::KeepVec`
[INFO] [stdout]   --> src/gc_mem.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     type KeepVec<T>: for<'a> KeepVecTrait<T, ShortBox<'a> = Self::ShortBox<'a>>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `gc_mem::Allocator::KeepVec` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `KeepVecTrait<T>` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/gc_mem.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | trait KeepVecTrait<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> src/gc_mem.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub struct LongBox<A: super::Allocator<LongBox = LongBox<A>>> {
[INFO] [stdout]     |                ------- field in this struct
[INFO] [stdout] 168 |         value: u32,
[INFO] [stdout] 169 |         a: A::Ref,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidCode(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     InvalidCode(&'static str),
[INFO] [stdout] 14 +     InvalidCode(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     FreeVariables(u64),
[INFO] [stdout]    |     ------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     FreeVariables(u64),
[INFO] [stdout] 15 +     FreeVariables(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compare.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:309:38
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &ALLOCATOR };
[INFO] [stdout]     |                                      ^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw const` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &raw const ALLOCATOR };
[INFO] [stdout]     |                                       +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:417:25
[INFO] [stdout]     |
[INFO] [stdout] 417 |                 let _ = ALLOCATOR.memory.get_mut().try_reserve_exact(4096);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &mut ALLOCATOR
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &raw mut ALLOCATOR
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.70s
[INFO] running `Command { std: "docker" "inspect" "7a280aa362c3d6fc8b9421baeb7d41a7dddb590e1836092cbe25d2df50d69660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a280aa362c3d6fc8b9421baeb7d41a7dddb590e1836092cbe25d2df50d69660", kill_on_drop: false }`
[INFO] [stdout] 7a280aa362c3d6fc8b9421baeb7d41a7dddb590e1836092cbe25d2df50d69660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2e929abf2f0526b6a0e16ecf0d25110162edd58b970da44d9b3244c54e4eb95
[INFO] running `Command { std: "docker" "start" "-a" "f2e929abf2f0526b6a0e16ecf0d25110162edd58b970da44d9b3244c54e4eb95", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]    Compiling uuid v1.7.0
[INFO] [stderr]    Compiling ahash v0.8.10
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling cpp_demangle v0.4.3
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling symbolic-demangle v12.8.0
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling bytemuck v1.14.3
[INFO] [stderr]    Compiling smallvec v1.13.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling rgb v0.8.37
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling quick-xml v0.26.0
[INFO] [stderr]    Compiling num-format v0.4.4
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling str_stack v0.1.0
[INFO] [stderr]    Compiling debugid v0.8.0
[INFO] [stderr]    Compiling indexmap v2.2.5
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling pprof v0.13.0
[INFO] [stderr]    Compiling iai v0.1.1
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling memmap2 v0.9.4
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling symbolic-common v12.8.0
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling inferno v0.11.19
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling criterion-cycles-per-byte v0.6.0
[INFO] [stderr]    Compiling lambda_calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `marker::PhantomData`, and `os::raw::c_void`
[INFO] [stdout]  --> src/gc_mem.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 3 |     marker::PhantomData,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     os::raw::c_void,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `Ref`
[INFO] [stdout]    --> src/gc_mem.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |         cell::{Cell, Ref, RefCell, UnsafeCell},
[INFO] [stdout]     |                ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:487:53
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn to_vec<'a>(&mut self) -> Vec<(Self::ShortBox<'a>, T)>;
[INFO] [stdout]     |                   - the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 487 |         let mut to_do = self.replace_to_do.to_vec::<'a>();
[INFO] [stdout]     |                                                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:580:62
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn replace<'a>(
[INFO] [stdout]     |                -- the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 580 |                     self.current = a.to_long(&self.replace::<'a>(a, p, a.to_short(&app)));
[INFO] [stdout]     |                                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inner` is assigned to, but never used
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_inner` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/direct_executor.rs:241:36
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 Program::Reference(p) => (),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inner` is never read
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/gc_mem.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             unsafe {
[INFO] [stdout]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:229:17
[INFO] [stdout]     |
[INFO] [stdout] 229 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:262:17
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut other = self.other.get_mut();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/gc_mem.rs:370:57
[INFO] [stdout]     |
[INFO] [stdout] 370 |                 if let super::Program::InternalReplaced(v) = next {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |         let mut f = f;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/gc_mem.rs:678:35
[INFO] [stdout]     |
[INFO] [stdout] 678 |         Program::InternalReplaced(x) => panic!("Internal error"),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::from_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn from_mem_rep(&mut self, program: &super::memory_representation::Program) -> Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::from_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::to_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn to_mem_rep(&self, p: Program) -> super::memory_representation::Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::to_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::initialize`
[INFO] [stdout]    --> src/direct_executor.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn initialize(&mut self, p: Program) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::initialize` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KeepVecTrait<T>` is more private than the item `gc_mem::Allocator::KeepVec`
[INFO] [stdout]   --> src/gc_mem.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     type KeepVec<T>: for<'a> KeepVecTrait<T, ShortBox<'a> = Self::ShortBox<'a>>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `gc_mem::Allocator::KeepVec` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `KeepVecTrait<T>` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/gc_mem.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | trait KeepVecTrait<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> src/gc_mem.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub struct LongBox<A: super::Allocator<LongBox = LongBox<A>>> {
[INFO] [stdout]     |                ------- field in this struct
[INFO] [stdout] 168 |         value: u32,
[INFO] [stdout] 169 |         a: A::Ref,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidCode(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     InvalidCode(&'static str),
[INFO] [stdout] 14 +     InvalidCode(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     FreeVariables(u64),
[INFO] [stdout]    |     ------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     FreeVariables(u64),
[INFO] [stdout] 15 +     FreeVariables(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compare.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:309:38
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &ALLOCATOR };
[INFO] [stdout]     |                                      ^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw const` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &raw const ALLOCATOR };
[INFO] [stdout]     |                                       +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:417:25
[INFO] [stdout]     |
[INFO] [stdout] 417 |                 let _ = ALLOCATOR.memory.get_mut().try_reserve_exact(4096);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &mut ALLOCATOR
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &raw mut ALLOCATOR
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `marker::PhantomData`, and `os::raw::c_void`
[INFO] [stdout]  --> src/gc_mem.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 3 |     marker::PhantomData,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     os::raw::c_void,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell` and `Ref`
[INFO] [stdout]    --> src/gc_mem.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |         cell::{Cell, Ref, RefCell, UnsafeCell},
[INFO] [stdout]     |                ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:487:53
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn to_vec<'a>(&mut self) -> Vec<(Self::ShortBox<'a>, T)>;
[INFO] [stdout]     |                   - the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 487 |         let mut to_do = self.replace_to_do.to_vec::<'a>();
[INFO] [stdout]     |                                                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:580:62
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn replace<'a>(
[INFO] [stdout]     |                -- the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 580 |                     self.current = a.to_long(&self.replace::<'a>(a, p, a.to_short(&app)));
[INFO] [stdout]     |                                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inner` is assigned to, but never used
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_inner` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/direct_executor.rs:241:36
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 Program::Reference(p) => (),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inner` is never read
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/gc_mem.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             unsafe {
[INFO] [stdout]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:229:17
[INFO] [stdout]     |
[INFO] [stdout] 229 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:262:17
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut other = self.other.get_mut();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/gc_mem.rs:370:57
[INFO] [stdout]     |
[INFO] [stdout] 370 |                 if let super::Program::InternalReplaced(v) = next {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/gc_mem.rs:431:13
[INFO] [stdout]     |
[INFO] [stdout] 431 |         let c = alloc.new(&lambda);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/gc_mem.rs:433:13
[INFO] [stdout]     |
[INFO] [stdout] 433 |         let b = alloc.to_long(&a);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |         let mut f = f;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/gc_mem.rs:678:35
[INFO] [stdout]     |
[INFO] [stdout] 678 |         Program::InternalReplaced(x) => panic!("Internal error"),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::from_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn from_mem_rep(&mut self, program: &super::memory_representation::Program) -> Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::from_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::to_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn to_mem_rep(&self, p: Program) -> super::memory_representation::Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::to_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::initialize`
[INFO] [stdout]    --> src/direct_executor.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn initialize(&mut self, p: Program) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::initialize` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KeepVecTrait<T>` is more private than the item `gc_mem::Allocator::KeepVec`
[INFO] [stdout]   --> src/gc_mem.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     type KeepVec<T>: for<'a> KeepVecTrait<T, ShortBox<'a> = Self::ShortBox<'a>>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `gc_mem::Allocator::KeepVec` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `KeepVecTrait<T>` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/gc_mem.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | trait KeepVecTrait<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> src/gc_mem.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub struct LongBox<A: super::Allocator<LongBox = LongBox<A>>> {
[INFO] [stdout]     |                ------- field in this struct
[INFO] [stdout] 168 |         value: u32,
[INFO] [stdout] 169 |         a: A::Ref,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidCode(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     InvalidCode(&'static str),
[INFO] [stdout] 14 +     InvalidCode(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     FreeVariables(u64),
[INFO] [stdout]    |     ------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     FreeVariables(u64),
[INFO] [stdout] 15 +     FreeVariables(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compare.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator {
[INFO] [stdout]    |                     ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:309:38
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &ALLOCATOR };
[INFO] [stdout]     |                                      ^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw const` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &raw const ALLOCATOR };
[INFO] [stdout]     |                                       +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:417:25
[INFO] [stdout]     |
[INFO] [stdout] 417 |                 let _ = ALLOCATOR.memory.get_mut().try_reserve_exact(4096);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &mut ALLOCATOR
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &raw mut ALLOCATOR
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 30.48s
[INFO] running `Command { std: "docker" "inspect" "f2e929abf2f0526b6a0e16ecf0d25110162edd58b970da44d9b3244c54e4eb95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2e929abf2f0526b6a0e16ecf0d25110162edd58b970da44d9b3244c54e4eb95", kill_on_drop: false }`
[INFO] [stdout] f2e929abf2f0526b6a0e16ecf0d25110162edd58b970da44d9b3244c54e4eb95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b4b7e8db06e9540d7963b94ab001c44e37888a45bacfb20c720e7a10fd3010b
[INFO] running `Command { std: "docker" "start" "-a" "9b4b7e8db06e9540d7963b94ab001c44e37888a45bacfb20c720e7a10fd3010b", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr] warning: unused imports: `Cell`, `UnsafeCell`, `marker::PhantomData`, and `os::raw::c_void`
[INFO] [stderr]  --> src/gc_mem.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 |     cell::{Cell, UnsafeCell},
[INFO] [stderr]   |            ^^^^  ^^^^^^^^^^
[INFO] [stderr] 3 |     marker::PhantomData,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 4 |     os::raw::c_void,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cell` and `Ref`
[INFO] [stderr]    --> src/gc_mem.rs:107:16
[INFO] [stderr]     |
[INFO] [stderr] 107 |         cell::{Cell, Ref, RefCell, UnsafeCell},
[INFO] [stderr]     |                ^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stderr]    --> src/gc_mem.rs:487:53
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn to_vec<'a>(&mut self) -> Vec<(Self::ShortBox<'a>, T)>;
[INFO] [stderr]     |                   - the late bound lifetime parameter is introduced here
[INFO] [stderr] ...
[INFO] [stderr] 487 |         let mut to_do = self.replace_to_do.to_vec::<'a>();
[INFO] [stderr]     |                                                     ^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stderr]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stderr]    --> src/gc_mem.rs:580:62
[INFO] [stderr]     |
[INFO] [stderr] 481 |     fn replace<'a>(
[INFO] [stderr]     |                -- the late bound lifetime parameter is introduced here
[INFO] [stderr] ...
[INFO] [stderr] 580 |                     self.current = a.to_long(&self.replace::<'a>(a, p, a.to_short(&app)));
[INFO] [stderr]     |                                                              ^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stderr] 
[INFO] [stderr] warning: variable `inner` is assigned to, but never used
[INFO] [stderr]    --> src/direct_executor.rs:231:40
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stderr]     |                                        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_inner` instead
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/direct_executor.rs:241:36
[INFO] [stderr]     |
[INFO] [stderr] 241 |                 Program::Reference(p) => (),
[INFO] [stderr]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `inner` is never read
[INFO] [stderr]    --> src/direct_executor.rs:231:40
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stderr]     |                                        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/gc_mem.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |             unsafe {
[INFO] [stderr]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gc_mem.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gc_mem.rs:245:17
[INFO] [stderr]     |
[INFO] [stderr] 245 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gc_mem.rs:262:17
[INFO] [stderr]     |
[INFO] [stderr] 262 |             let mut b = unsafe { &mut *self.memory.get() };
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gc_mem.rs:338:17
[INFO] [stderr]     |
[INFO] [stderr] 338 |             let mut other = self.other.get_mut();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/gc_mem.rs:370:57
[INFO] [stderr]     |
[INFO] [stderr] 370 |                 if let super::Program::InternalReplaced(v) = next {
[INFO] [stderr]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gc_mem.rs:529:13
[INFO] [stderr]     |
[INFO] [stderr] 529 |         let mut f = f;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/gc_mem.rs:678:35
[INFO] [stderr]     |
[INFO] [stderr] 678 |         Program::InternalReplaced(x) => panic!("Internal error"),
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::from_mem_rep`
[INFO] [stderr]    --> src/direct_executor.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn from_mem_rep(&mut self, program: &super::memory_representation::Program) -> Program {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::from_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/direct_executor.rs:25:1
[INFO] [stderr]     |
[INFO] [stderr]  25 | enum Program {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::to_mem_rep`
[INFO] [stderr]    --> src/direct_executor.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     pub fn to_mem_rep(&self, p: Program) -> super::memory_representation::Program {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::to_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/direct_executor.rs:25:1
[INFO] [stderr]     |
[INFO] [stderr]  25 | enum Program {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::initialize`
[INFO] [stderr]    --> src/direct_executor.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn initialize(&mut self, p: Program) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::initialize` is reachable at visibility `pub(crate)`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/direct_executor.rs:25:1
[INFO] [stderr]     |
[INFO] [stderr]  25 | enum Program {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `KeepVecTrait<T>` is more private than the item `gc_mem::Allocator::KeepVec`
[INFO] [stderr]   --> src/gc_mem.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     type KeepVec<T>: for<'a> KeepVecTrait<T, ShortBox<'a> = Self::ShortBox<'a>>;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `gc_mem::Allocator::KeepVec` is reachable at visibility `pub`
[INFO] [stderr]    |
[INFO] [stderr] note: but trait `KeepVecTrait<T>` is only usable at visibility `pub(self)`
[INFO] [stderr]   --> src/gc_mem.rs:97:1
[INFO] [stderr]    |
[INFO] [stderr] 97 | trait KeepVecTrait<T> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `a` is never read
[INFO] [stderr]    --> src/gc_mem.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub struct LongBox<A: super::Allocator<LongBox = LongBox<A>>> {
[INFO] [stderr]     |                ------- field in this struct
[INFO] [stderr] 168 |         value: u32,
[INFO] [stderr] 169 |         a: A::Ref,
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/human_readable.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |     InvalidCode(&'static str),
[INFO] [stderr]    |     ----------- ^^^^^^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 14 -     InvalidCode(&'static str),
[INFO] [stderr] 14 +     InvalidCode(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/human_readable.rs:15:19
[INFO] [stderr]    |
[INFO] [stderr] 15 |     FreeVariables(u64),
[INFO] [stderr]    |     ------------- ^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 15 -     FreeVariables(u64),
[INFO] [stderr] 15 +     FreeVariables(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/compare.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator {
[INFO] [stderr]    |                     ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator<'_> {
[INFO] [stderr]    |                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: creating a shared reference to mutable static
[INFO] [stderr]    --> src/gc_mem.rs:309:38
[INFO] [stderr]     |
[INFO] [stderr] 309 |             let allocator = unsafe { &ALLOCATOR };
[INFO] [stderr]     |                                      ^^^^^^^^^^ shared reference to mutable static
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stderr]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stderr] help: use `&raw const` instead to create a raw pointer
[INFO] [stderr]     |
[INFO] [stderr] 309 |             let allocator = unsafe { &raw const ALLOCATOR };
[INFO] [stderr]     |                                       +++++++++
[INFO] [stderr] 
[INFO] [stderr] warning: creating a mutable reference to mutable static
[INFO] [stderr]    --> src/gc_mem.rs:417:25
[INFO] [stderr]     |
[INFO] [stderr] 417 |                 let _ = ALLOCATOR.memory.get_mut().try_reserve_exact(4096);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stderr] 
[INFO] [stderr] warning: creating a mutable reference to mutable static
[INFO] [stderr]    --> src/gc_mem.rs:418:17
[INFO] [stderr]     |
[INFO] [stderr] 418 |                 &mut ALLOCATOR
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stderr] help: use `&raw mut` instead to create a raw pointer
[INFO] [stderr]     |
[INFO] [stderr] 418 |                 &raw mut ALLOCATOR
[INFO] [stderr]     |                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: `lambda_calculus` (lib) generated 26 warnings (run `cargo fix --lib -p lambda_calculus` to apply 11 suggestions)
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/gc_mem.rs:431:13
[INFO] [stderr]     |
[INFO] [stderr] 431 |         let c = alloc.new(&lambda);
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/gc_mem.rs:433:13
[INFO] [stderr]     |
[INFO] [stderr] 433 |         let b = alloc.to_long(&a);
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: `lambda_calculus` (lib test) generated 28 warnings (26 duplicates) (run `cargo fix --lib -p lambda_calculus --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lambda_calculus-0dacb801f83b5111)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test program::flags::tests::initial ... ok
[INFO] [stdout] test example_interact_programs::tests::test_hello_world ... ok
[INFO] [stdout] test program::flags::tests::extend_eq_shrink ... ok
[INFO] [stdout] test gc_mem::test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- gc_mem::test stdout ----
[INFO] [stdout] After garbage collection, keeping  0% (0 from 3 boxes); out of 0 roots
[INFO] [stdout] 
[INFO] [stdout] thread 'gc_mem::test' (25) panicked at src/gc_mem.rs:441:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 1
[INFO] [stdout]  right: 2
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56e86afd4e62 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x56e86afd4e62 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x56e86afd4e62 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x56e86afd4e62 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x56e86afe9d1a - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x56e86afe9d1a - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x56e86afd9c66 - std[3f03f8b59f91bef1]::io::default_write_fmt::<alloc[15e7b27aba85d2e2]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x56e86afd9c66 - <alloc[15e7b27aba85d2e2]::vec::Vec<u8> as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x56e86afb35ff - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x56e86afb35ff - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x56e86afcd199 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x56e86af68bce - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x56e86af68bce - test[30224e0cb089acd2]::test_main_with_exit_callback::<test[30224e0cb089acd2]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x56e86afcd352 - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x56e86afcd352 - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x56e86afb36b8 - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x56e86afa88a9 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x56e86afb450d - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x56e86afea3ec - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x56e86afea2a3 - core[585f66e14d78f9ba]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x56e86afa7e65 - core[585f66e14d78f9ba]::panicking::assert_failed::<i32, i32>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x56e86af58e0e - lambda_calculus[909be8be1586e6c2]::gc_mem::test
[INFO] [stdout]                                at /opt/rustwide/workdir/src/gc_mem.rs:441:5
[INFO] [stdout]   22:     0x56e86af581b7 - lambda_calculus[909be8be1586e6c2]::gc_mem::test::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/gc_mem.rs:425:10
[INFO] [stdout]   23:     0x56e86af5c7a6 - <lambda_calculus[909be8be1586e6c2]::gc_mem::test::{closure#0} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x56e86af5cf7b - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x56e86af5cf7b - test[30224e0cb089acd2]::__rust_begin_short_backtrace::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x56e86af697da - test[30224e0cb089acd2]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x56e86af697da - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x56e86af697da - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x56e86af697da - std[3f03f8b59f91bef1]::panicking::catch_unwind::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x56e86af697da - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x56e86af697da - test[30224e0cb089acd2]::run_test_in_process
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x56e86af697da - test[30224e0cb089acd2]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x56e86af63ca4 - test[30224e0cb089acd2]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x56e86af63ca4 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x56e86af6c2d2 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x56e86af6c2d2 - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x56e86af6c2d2 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x56e86af6c2d2 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<(), core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x56e86af6c2d2 - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x56e86af6c2d2 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x56e86af6c2d2 - <std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x56e86afd470f - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::ops::function::FnOnce<(), Output = ()> + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x56e86afd470f - <std[3f03f8b59f91bef1]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x7cb337089aa4 - <unknown>
[INFO] [stdout]   45:     0x7cb337116a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     gc_mem::test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "9b4b7e8db06e9540d7963b94ab001c44e37888a45bacfb20c720e7a10fd3010b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b4b7e8db06e9540d7963b94ab001c44e37888a45bacfb20c720e7a10fd3010b", kill_on_drop: false }`
[INFO] [stdout] 9b4b7e8db06e9540d7963b94ab001c44e37888a45bacfb20c720e7a10fd3010b
