[INFO] fetching crate sandpit 0.3.0...
[INFO] testing sandpit-0.3.0 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] extracting crate sandpit 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate sandpit 0.3.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sandpit 0.3.0
[INFO] tweaked toml for crates.io crate sandpit 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sandpit 0.3.0 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sandpit 0.3.0 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded higher-kinded-types v0.1.1
[INFO] [stderr]   Downloaded sandpit_derive v0.3.0
[INFO] [stderr]   Downloaded clap_builder v4.5.2
[INFO] [stderr]   Downloaded never-say-never v6.6.666
[INFO] [stderr]   Downloaded clap v4.5.4
[INFO] [stderr]   Downloaded nimix v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2ccf12071b20aa63794fdbb777a1a169413219acda21370b51e22b3dbd8baa5
[INFO] running `Command { std: "docker" "start" "-a" "d2ccf12071b20aa63794fdbb777a1a169413219acda21370b51e22b3dbd8baa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2ccf12071b20aa63794fdbb777a1a169413219acda21370b51e22b3dbd8baa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2ccf12071b20aa63794fdbb777a1a169413219acda21370b51e22b3dbd8baa5", kill_on_drop: false }`
[INFO] [stdout] d2ccf12071b20aa63794fdbb777a1a169413219acda21370b51e22b3dbd8baa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a11b451ea59b6b4c53f502f40e491facb9196240f237f9fd147dcd983dbd2c5a
[INFO] running `Command { std: "docker" "start" "-a" "a11b451ea59b6b4c53f502f40e491facb9196240f237f9fd147dcd983dbd2c5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling never-say-never v6.6.666
[INFO] [stderr]    Compiling nimix v0.1.0
[INFO] [stderr]    Compiling higher-kinded-types v0.1.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling sandpit_derive v0.3.0
[INFO] [stderr]    Compiling sandpit v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/barrier.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn into(&self) -> Option<WriteBarrier<T>> {
[INFO] [stdout]     |                 ^^^^^            --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn into(&self) -> Option<WriteBarrier<'_, T>> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/collector.rs:211:20
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn new_mutator(&self) -> Mutator {
[INFO] [stdout]     |                    ^^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn new_mutator(&self) -> Mutator<'_> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trace/tracer_controller.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<()> {
[INFO] [stdout]    |                       ^^^^^     ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<'_, ()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trace/tracer_controller.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<()> {
[INFO] [stdout]    |                                ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<'_, ()> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.32s
[INFO] running `Command { std: "docker" "inspect" "a11b451ea59b6b4c53f502f40e491facb9196240f237f9fd147dcd983dbd2c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11b451ea59b6b4c53f502f40e491facb9196240f237f9fd147dcd983dbd2c5a", kill_on_drop: false }`
[INFO] [stdout] a11b451ea59b6b4c53f502f40e491facb9196240f237f9fd147dcd983dbd2c5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 883a4e909de27b120cc6c648aa9cfda57f24b5b459e82f56f0bb8a7d693a70ad
[INFO] running `Command { std: "docker" "start" "-a" "883a4e909de27b120cc6c648aa9cfda57f24b5b459e82f56f0bb8a7d693a70ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling plotters-backend v0.3.6
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling plotters-svg v0.3.6
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling plotters v0.3.6
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling sandpit v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/barrier.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn into(&self) -> Option<WriteBarrier<T>> {
[INFO] [stdout]     |                 ^^^^^            --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn into(&self) -> Option<WriteBarrier<'_, T>> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/collector.rs:211:20
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn new_mutator(&self) -> Mutator {
[INFO] [stdout]     |                    ^^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn new_mutator(&self) -> Mutator<'_> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trace/tracer_controller.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<()> {
[INFO] [stdout]    |                       ^^^^^     ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<'_, ()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trace/tracer_controller.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<()> {
[INFO] [stdout]    |                                ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<'_, ()> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]   --> examples/linked_list.rs:92:38
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn pop_back(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>) -> Option<Gc<'gc, T>> {
[INFO] [stdout]    |                                      ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]    --> examples/linked_list.rs:109:25
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn pop_front(&self, mu: &'gc Mutator<'gc>) -> Option<T> {
[INFO] [stdout]     |                         ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mu`
[INFO] [stdout]    --> examples/linked_list.rs:113:22
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn delete(&self, mu: &'gc Mutator<'gc>, index: usize) -> &T {
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> examples/linked_list.rs:113:45
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn delete(&self, mu: &'gc Mutator<'gc>, index: usize) -> &T {
[INFO] [stdout]     |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutator`
[INFO] [stdout]    --> examples/linked_list.rs:253:19
[INFO] [stdout]     |
[INFO] [stdout] 253 |     arena.mutate(|mutator, arena| {
[INFO] [stdout]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arena`
[INFO] [stdout]    --> examples/linked_list.rs:253:28
[INFO] [stdout]     |
[INFO] [stdout] 253 |     arena.mutate(|mutator, arena| {
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_arena`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedListIter` is never constructed
[INFO] [stdout]   --> examples/linked_list.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct LinkedListIter<'gc, T: Trace> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> examples/linked_list.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<'gc, T: Trace> LinkedListIter<'gc, T> {
[INFO] [stdout]    | ------------------------------------------ associated function in this implementation
[INFO] [stdout] 31 |     fn new(list: &LinkedList<'gc, T>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> examples/linked_list.rs:56:8
[INFO] [stdout]     |
[INFO] [stdout] 45  | impl<'gc, T: Trace> LinkedList<'gc, T> {
[INFO] [stdout]     | -------------------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56  |     fn iter(&self) -> LinkedListIter<'gc, T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60  |     fn push_back(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, val: T) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76  |     fn push_front(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, val: T) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92  |     fn pop_back(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>) -> Option<Gc<'gc, T>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn pop_front(&self, mu: &'gc Mutator<'gc>) -> Option<T> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn delete(&self, mu: &'gc Mutator<'gc>, index: usize) -> &T {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn swap(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, index: usize, val: T) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn at(&self, index: usize) -> Option<&T> {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     fn node_at(&self, index: usize) -> Option<Gc<'gc, Node<'gc, T>>> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn init_push(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, gc_node: GcOpt<'gc, Node<'gc, T>>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     fn set_start(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Node<'gc, T>>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     fn set_end(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Node<'gc, T>>) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_prev`, `set_next`, `get_val`, `get_next`, and `get_prev` are never used
[INFO] [stdout]    --> examples/linked_list.rs:215:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | impl<'gc, T: Trace> Node<'gc, T> {
[INFO] [stdout]     | -------------------------------- associated items in this implementation
[INFO] [stdout] 215 |     fn new(mu: &'gc Mutator<'gc>, val: T) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 |     fn set_prev(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Self>) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 229 |     fn set_next(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Self>) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |     fn get_val(&'gc self) -> &T {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     fn get_next(&'gc self) -> Option<GcMut<'gc, Node<'gc, T>>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 |     fn get_prev(&'gc self) -> Option<GcMut<'gc, Node<'gc, T>>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> examples/linked_list.rs:235:17
[INFO] [stdout]     |
[INFO] [stdout] 235 |     fn get_val(&'gc self) -> &T {
[INFO] [stdout]     |                 ^^^          -- the lifetime gets resolved as `'gc`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'gc`
[INFO] [stdout]     |
[INFO] [stdout] 235 |     fn get_val(&'gc self) -> &'gc T {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/barrier.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn into(&self) -> Option<WriteBarrier<T>> {
[INFO] [stdout]     |                 ^^^^^            --------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn into(&self) -> Option<WriteBarrier<'_, T>> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/collector.rs:211:20
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn new_mutator(&self) -> Mutator {
[INFO] [stdout]     |                    ^^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn new_mutator(&self) -> Mutator<'_> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trace/tracer_controller.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<()> {
[INFO] [stdout]    |                       ^^^^^     ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<'_, ()> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trace/tracer_controller.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<()> {
[INFO] [stdout]    |                                ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<'_, ()> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "883a4e909de27b120cc6c648aa9cfda57f24b5b459e82f56f0bb8a7d693a70ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883a4e909de27b120cc6c648aa9cfda57f24b5b459e82f56f0bb8a7d693a70ad", kill_on_drop: false }`
[INFO] [stdout] 883a4e909de27b120cc6c648aa9cfda57f24b5b459e82f56f0bb8a7d693a70ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 584954ed6ecedd279c20962d2e8691bc0dae70cb3a73cf4920d8360bce96b286
[INFO] running `Command { std: "docker" "start" "-a" "584954ed6ecedd279c20962d2e8691bc0dae70cb3a73cf4920d8360bce96b286", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/barrier.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |     pub fn into(&self) -> Option<WriteBarrier<T>> {
[INFO] [stderr]     |                 ^^^^^            --------------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 146 |     pub fn into(&self) -> Option<WriteBarrier<'_, T>> {
[INFO] [stderr]     |                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/collector.rs:211:20
[INFO] [stderr]     |
[INFO] [stderr] 211 |     fn new_mutator(&self) -> Mutator {
[INFO] [stderr]     |                    ^^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 211 |     fn new_mutator(&self) -> Mutator<'_> {
[INFO] [stderr]     |                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/trace/tracer_controller.rs:80:23
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<()> {
[INFO] [stderr]    |                       ^^^^^     ------------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn yield_lock(&self) -> RwLockReadGuard<'_, ()> {
[INFO] [stderr]    |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/trace/tracer_controller.rs:84:32
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<()> {
[INFO] [stderr]    |                                ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                                |
[INFO] [stderr]    |                                this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn get_time_slice_lock(&self) -> MutexGuard<'_, ()> {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: `sandpit` (lib) generated 4 warnings
[INFO] [stderr] warning: unused variable: `mu`
[INFO] [stderr]   --> examples/linked_list.rs:92:38
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn pop_back(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>) -> Option<Gc<'gc, T>> {
[INFO] [stderr]    |                                      ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mu`
[INFO] [stderr]    --> examples/linked_list.rs:109:25
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn pop_front(&self, mu: &'gc Mutator<'gc>) -> Option<T> {
[INFO] [stderr]     |                         ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mu`
[INFO] [stderr]    --> examples/linked_list.rs:113:22
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn delete(&self, mu: &'gc Mutator<'gc>, index: usize) -> &T {
[INFO] [stderr]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_mu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> examples/linked_list.rs:113:45
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn delete(&self, mu: &'gc Mutator<'gc>, index: usize) -> &T {
[INFO] [stderr]     |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mutator`
[INFO] [stderr]    --> examples/linked_list.rs:253:19
[INFO] [stderr]     |
[INFO] [stderr] 253 |     arena.mutate(|mutator, arena| {
[INFO] [stderr]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutator`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arena`
[INFO] [stderr]    --> examples/linked_list.rs:253:28
[INFO] [stderr]     |
[INFO] [stderr] 253 |     arena.mutate(|mutator, arena| {
[INFO] [stderr]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_arena`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LinkedListIter` is never constructed
[INFO] [stderr]   --> examples/linked_list.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct LinkedListIter<'gc, T: Trace> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> examples/linked_list.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl<'gc, T: Trace> LinkedListIter<'gc, T> {
[INFO] [stderr]    | ------------------------------------------ associated function in this implementation
[INFO] [stderr] 31 |     fn new(list: &LinkedList<'gc, T>) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> examples/linked_list.rs:56:8
[INFO] [stderr]     |
[INFO] [stderr] 45  | impl<'gc, T: Trace> LinkedList<'gc, T> {
[INFO] [stderr]     | -------------------------------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 56  |     fn iter(&self) -> LinkedListIter<'gc, T> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60  |     fn push_back(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, val: T) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 76  |     fn push_front(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, val: T) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 92  |     fn pop_back(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>) -> Option<Gc<'gc, T>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |     fn pop_front(&self, mu: &'gc Mutator<'gc>) -> Option<T> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 113 |     fn delete(&self, mu: &'gc Mutator<'gc>, index: usize) -> &T {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 117 |     fn swap(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, index: usize, val: T) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     fn at(&self, index: usize) -> Option<&T> {
[INFO] [stderr]     |        ^^
[INFO] [stderr] ...
[INFO] [stderr] 172 |     fn len(&self) -> usize {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 176 |     fn node_at(&self, index: usize) -> Option<Gc<'gc, Node<'gc, T>>> {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 188 |     fn init_push(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, gc_node: GcOpt<'gc, Node<'gc, T>>) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 194 |     fn set_start(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Node<'gc, T>>) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 200 |     fn set_end(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Node<'gc, T>>) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `set_prev`, `set_next`, `get_val`, `get_next`, and `get_prev` are never used
[INFO] [stderr]    --> examples/linked_list.rs:215:8
[INFO] [stderr]     |
[INFO] [stderr] 214 | impl<'gc, T: Trace> Node<'gc, T> {
[INFO] [stderr]     | -------------------------------- associated items in this implementation
[INFO] [stderr] 215 |     fn new(mu: &'gc Mutator<'gc>, val: T) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 223 |     fn set_prev(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Self>) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 229 |     fn set_next(this: Gc<'gc, Self>, mu: &'gc Mutator<'gc>, new: GcOpt<'gc, Self>) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 235 |     fn get_val(&'gc self) -> &T {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 239 |     fn get_next(&'gc self) -> Option<GcMut<'gc, Node<'gc, T>>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 243 |     fn get_prev(&'gc self) -> Option<GcMut<'gc, Node<'gc, T>>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> examples/linked_list.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |     fn get_val(&'gc self) -> &T {
[INFO] [stderr]     |                 ^^^          -- the lifetime gets resolved as `'gc`
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to consistently use `'gc`
[INFO] [stderr]     |
[INFO] [stderr] 235 |     fn get_val(&'gc self) -> &'gc T {
[INFO] [stderr]     |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: `sandpit` (example "linked_list") generated 11 warnings
[INFO] [stderr] warning: `sandpit` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sandpit-6469fdb1cee9d835)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-fbac985959067edc)
[INFO] [stdout] test gc::tests::gc_from_gcmut ... ok
[INFO] [stdout] test gc::tests::valid_sized_header ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test alloc_array_from_slice ... ok
[INFO] [stdout] test alloc_array_from_fn ... ok
[INFO] [stdout] test change_array_size ... ok
[INFO] [stdout] test alloc_array_of_gc ... ok
[INFO] [stdout] test derive_empty_enums ... ok
[INFO] [stdout] test barrier_as_option ... ok
[INFO] [stdout] test alloc_sized_array ... ok
[INFO] [stdout] test multi_threaded_allocating ... ok
[INFO] [stdout] test empty_gc_metrics ... ok
[INFO] [stdout] test gc_clone ... ok
[INFO] [stdout] test gc_scoped_deref ... ok
[INFO] [stdout] test alloc_tuple ... ok
[INFO] [stdout] test alloc_array_of_gc_mut ... ok
[INFO] [stdout] test alloc_option ... ok
[INFO] [stdout] test nested_root ... ok
[INFO] [stdout] test new_arena ... ok
[INFO] [stdout] test alloc_result ... ok
[INFO] [stdout] test objects_counted_should_be_one ... ok
[INFO] [stdout] test derive_trace_unit_struct ... ok
[INFO] [stdout] test trace_gc_null_mut ... ok
[INFO] [stdout] test trace_complex_enum ... ok
[INFO] [stdout] test gc_opt_from_mut ... ok
[INFO] [stdout] test cyclic_graph ... ok
[INFO] [stdout] test resets_old_object_count ... ok
[INFO] [stdout] test arena_allocating_and_collecting ... ok
[INFO] [stdout] test old_objects_count_stays_constant ... ok
[INFO] [stdout] test trace_tuple_struct ... ok
[INFO] [stdout] test alloc_array ... ok
[INFO] [stdout] test yield_is_not_requested ... ok
[INFO] [stdout] test write_barrier ... ok
[INFO] [stdout] test traceleaf_tuple_struct ... ok
[INFO] [stdout] test alloc_after_collect_test ... ok
[INFO] [stdout] test two_dimensional_array ... ok
[INFO] [stdout] test counts_collections ... ok
[INFO] [stderr] error: test failed, to rerun pass `--test tests`
[INFO] [stdout] test arena_size_does_not_explode ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- arena_size_does_not_explode stdout ----
[INFO] [stdout] Arena MB(s): 1.5
[INFO] [stdout] Allocated MB(s): 1.4678268432617188
[INFO] [stdout] Arena MB(s): 0.53125
[INFO] [stdout] Allocated MB(s): 1.98309326171875
[INFO] [stdout] Arena MB(s): 2.25
[INFO] [stdout] Allocated MB(s): 4.191963195800781
[INFO] [stdout] Arena MB(s): 2.21875
[INFO] [stdout] Allocated MB(s): 6.367881774902344
[INFO] [stdout] Arena MB(s): 1.53125
[INFO] [stdout] Allocated MB(s): 7.88677978515625
[INFO] [stdout] Arena MB(s): 2.75
[INFO] [stdout] Allocated MB(s): 10.59466552734375
[INFO] [stdout] Arena MB(s): 3.03125
[INFO] [stdout] Allocated MB(s): 13.578681945800781
[INFO] [stdout] Arena MB(s): 3.34375
[INFO] [stdout] Allocated MB(s): 16.869705200195313
[INFO] [stdout] Arena MB(s): 3.28125
[INFO] [stdout] Allocated MB(s): 20.105674743652344
[INFO] [stdout] Arena MB(s): 2.875
[INFO] [stdout] Allocated MB(s): 22.934661865234375
[INFO] [stdout] Arena MB(s): 2.875
[INFO] [stdout] Allocated MB(s): 25.76329803466797
[INFO] [stdout] Arena MB(s): 2.84375
[INFO] [stdout] Allocated MB(s): 28.580810546875
[INFO] [stdout] Arena MB(s): 2.8125
[INFO] [stdout] Allocated MB(s): 31.353317260742188
[INFO] [stdout] Arena MB(s): 2.71875
[INFO] [stdout] Allocated MB(s): 34.01970672607422
[INFO] [stdout] Arena MB(s): 2.75
[INFO] [stdout] Allocated MB(s): 36.729698181152344
[INFO] [stdout] Arena MB(s): 2.8125
[INFO] [stdout] Allocated MB(s): 39.51439666748047
[INFO] [stdout] Arena MB(s): 2.8125
[INFO] [stdout] Allocated MB(s): 42.29991912841797
[INFO] [stdout] Arena MB(s): 1.875
[INFO] [stdout] Allocated MB(s): 44.15625
[INFO] [stdout] Arena MB(s): 1.9375
[INFO] [stdout] Allocated MB(s): 46.057228088378906
[INFO] [stdout] Arena MB(s): 3.0625
[INFO] [stdout] Allocated MB(s): 49.080177307128906
[INFO] [stdout] Arena MB(s): 3.125
[INFO] [stdout] Allocated MB(s): 52.1690673828125
[INFO] [stdout] Arena MB(s): 3.125
[INFO] [stdout] Allocated MB(s): 55.25391387939453
[INFO] [stdout] Arena MB(s): 3
[INFO] [stdout] Allocated MB(s): 58.20600128173828
[INFO] [stdout] Arena MB(s): 3.1875
[INFO] [stdout] Allocated MB(s): 61.364532470703125
[INFO] [stdout] Arena MB(s): 2.59375
[INFO] [stdout] Allocated MB(s): 63.930091857910156
[INFO] [stdout] Arena MB(s): 1.09375
[INFO] [stdout] Allocated MB(s): 65.0111312866211
[INFO] [stdout] Arena MB(s): 2.5
[INFO] [stdout] Allocated MB(s): 67.48367309570313
[INFO] [stdout] Arena MB(s): 2.5
[INFO] [stdout] Allocated MB(s): 69.95442962646484
[INFO] [stdout] Arena MB(s): 2.5
[INFO] [stdout] Allocated MB(s): 72.42189025878906
[INFO] [stdout] Arena MB(s): 2.9375
[INFO] [stdout] Allocated MB(s): 75.3145523071289
[INFO] [stdout] Arena MB(s): 2.84375
[INFO] [stdout] Allocated MB(s): 78.11966705322266
[INFO] [stdout] Arena MB(s): 2.875
[INFO] [stdout] Allocated MB(s): 80.95421600341797
[INFO] [stdout] Arena MB(s): 3.09375
[INFO] [stdout] Allocated MB(s): 84.00891876220703
[INFO] [stdout] Arena MB(s): 3.09375
[INFO] [stdout] Allocated MB(s): 87.04885864257813
[INFO] [stdout] Arena MB(s): 3
[INFO] [stdout] Allocated MB(s): 90.02140045166016
[INFO] [stdout] Arena MB(s): 3.25
[INFO] [stdout] Allocated MB(s): 93.23583984375
[INFO] [stdout] 
[INFO] [stdout] thread 'arena_size_does_not_explode' panicked at tests/tests.rs:648:9:
[INFO] [stdout] assertion failed: 5.0 > arena_size_mb
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59557fd10492 - std::backtrace_rs::backtrace::libunwind::trace::hd39b1f53d3cf9745
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x59557fd10492 - std::backtrace_rs::backtrace::trace_unsynchronized::he91d9a75d4e3972b
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x59557fd10492 - std::sys::backtrace::_print_fmt::hca46938f8c6e22cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x59557fd10492 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha499add612cccf8e
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x59557fd35c43 - core::fmt::rt::Argument::fmt::hd21145b75a833b7a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x59557fd35c43 - core::fmt::write::hb10c956f5235c8a4
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x59557fd0d673 - std::io::default_write_fmt::hdb7615052be2ba4d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x59557fd0d673 - std::io::Write::write_fmt::he1bcd251ec6e4153
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x59557fd102e2 - std::sys::backtrace::BacktraceLock::print::hb47c770ef659fd10
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x59557fd119fc - std::panicking::default_hook::{{closure}}::hdda8afb9d457a22c
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x59557fd11852 - std::panicking::default_hook::h7c46b44874fe5c9a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x59557fcc99a4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h178a5fcedee41e2f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x59557fcc99a4 - test::test_main_with_exit_callback::{{closure}}::h951a41e0149d6d5d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x59557fd123db - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h13602080f5b63276
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x59557fd123db - std::panicking::rust_panic_with_hook::ha6cb99ed099eb1c5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x59557fd12176 - std::panicking::begin_panic_handler::{{closure}}::he11808bc797ee921
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:699:13
[INFO] [stdout]   16:     0x59557fd10989 - std::sys::backtrace::__rust_end_short_backtrace::h9418807cb7346258
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x59557fd11e3d - __rustc[18fb429eef004894]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x59557fd34790 - core::panicking::panic_fmt::hd890aeb12c3a3fc3
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x59557fd347fc - core::panicking::panic::h318cb8731d7e290d
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:145:5
[INFO] [stdout]   20:     0x59557fc89f59 - tests::arena_size_does_not_explode::h9aa7eb33d81e4fcd
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/tests.rs:648:9
[INFO] [stdout]   21:     0x59557fc89f59 - tests::arena_size_does_not_explode::{{closure}}::h79eab74214d11f29
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/tests.rs:625:33
[INFO] [stdout]   22:     0x59557fc89f59 - core::ops::function::FnOnce::call_once::h97e04f38828b1ce2
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x59557fccf12b - core::ops::function::FnOnce::call_once::h2869fb5b0a2b0bdc
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x59557fccf12b - test::__rust_begin_short_backtrace::h7dd7142bd62fa711
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:648:18
[INFO] [stdout]   25:     0x59557fcce31e - test::run_test_in_process::{{closure}}::h43a753f038d36b3f
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:74
[INFO] [stdout]   26:     0x59557fcce31e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0ca95dd3e12d1e16
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x59557fcce31e - std::panicking::catch_unwind::do_call::he308587d70ac34ba
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   28:     0x59557fcce31e - std::panicking::catch_unwind::h30dcba31973e8fb0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   29:     0x59557fcce31e - std::panic::catch_unwind::hfb68364e5621fbee
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x59557fcce31e - test::run_test_in_process::hcdcc2977903b998a
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:27
[INFO] [stdout]   31:     0x59557fcce31e - test::run_test::{{closure}}::h544a6550958c5d14
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:592:43
[INFO] [stdout]   32:     0x59557fc91e94 - test::run_test::{{closure}}::hb172e48ebe2b92c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:622:41
[INFO] [stdout]   33:     0x59557fc91e94 - std::sys::backtrace::__rust_begin_short_backtrace::h7e79d8706638bea0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x59557fc9586a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4a275f1e71b8ab0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   35:     0x59557fc9586a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01ed0d242df78cfd
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x59557fc9586a - std::panicking::catch_unwind::do_call::h052f373fb905fee0
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40
[INFO] [stdout]   37:     0x59557fc9586a - std::panicking::catch_unwind::hb425d20c8ffb09c8
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19
[INFO] [stdout]   38:     0x59557fc9586a - std::panic::catch_unwind::ha0d5dfbf18fdeda5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x59557fc9586a - std::thread::Builder::spawn_unchecked_::{{closure}}::hbe79182bd37949c7
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   40:     0x59557fc9586a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc096c4a06972fde5
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x59557fd15337 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h47377e27fb938a26
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   42:     0x59557fd15337 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h72f1fe5d095abf57
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x59557fd15337 - std::sys::pal::unix::thread::Thread::new::thread_start::h0a4d8e1b9c0d38cf
[INFO] [stdout]                                at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   44:     0x76b5344baaa4 - <unknown>
[INFO] [stdout]   45:     0x76b534547a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     arena_size_does_not_explode
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 34 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "584954ed6ecedd279c20962d2e8691bc0dae70cb3a73cf4920d8360bce96b286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584954ed6ecedd279c20962d2e8691bc0dae70cb3a73cf4920d8360bce96b286", kill_on_drop: false }`
[INFO] [stdout] 584954ed6ecedd279c20962d2e8691bc0dae70cb3a73cf4920d8360bce96b286
