[INFO] fetching crate cas-compute 0.2.0...
[INFO] testing cas-compute-0.2.0 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate cas-compute 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate cas-compute 0.2.0
[INFO] finished tweaking crates.io crate cas-compute 0.2.0
[INFO] tweaked toml for crates.io crate cas-compute 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cas-compute 0.2.0 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cas-compute 0.2.0 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f6df2203b0a50cb094253a10d92279e01a61608d7b756c0f756957036050a9e
[INFO] running `Command { std: "docker" "start" "-a" "7f6df2203b0a50cb094253a10d92279e01a61608d7b756c0f756957036050a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f6df2203b0a50cb094253a10d92279e01a61608d7b756c0f756957036050a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6df2203b0a50cb094253a10d92279e01a61608d7b756c0f756957036050a9e", kill_on_drop: false }`
[INFO] [stdout] 7f6df2203b0a50cb094253a10d92279e01a61608d7b756c0f756957036050a9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 767a620d0c752dd4d2f3d484fef7d03fcba7af80bda39f852d8508e2c766aa4e
[INFO] running `Command { std: "docker" "start" "-a" "767a620d0c752dd4d2f3d484fef7d03fcba7af80bda39f852d8508e2c766aa4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.2
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling rug v1.24.1
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling levenshtein v1.0.5
[INFO] [stderr]    Compiling ariadne v0.2.0
[INFO] [stderr]    Compiling cas-error v0.2.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling logos-codegen v0.14.4
[INFO] [stderr]    Compiling cas-attrs v0.2.0
[INFO] [stderr]    Compiling logos-derive v0.14.4
[INFO] [stderr]    Compiling logos v0.14.4
[INFO] [stderr]    Compiling cas-parser v0.2.0
[INFO] [stderr]    Compiling cas-compute v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut current_complexity = complexity(&expr);
[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: unused variable: `current_complexity`
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut current_complexity = complexity(&expr);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_complexity`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `changed_in_this_pass` is assigned to, but never used
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     let mut changed_in_this_pass = false;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_changed_in_this_pass` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed_in_this_pass` is never read
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             changed_in_this_pass = true;
[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: value assigned to `changed_in_this_pass` is never read
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:96:25
[INFO] [stdout]    |
[INFO] [stdout] 96 |                         changed_in_this_pass |= result.1;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/numerical/value.rs:246:16
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter {
[INFO] [stdout]     |                ^^^^^ the lifetime is elided here ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter<'_> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/symbolic/expr/mod.rs:422:28
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn post_order_iter(&self) -> ExprIter {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn post_order_iter(&self) -> ExprIter<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 55s
[INFO] running `Command { std: "docker" "inspect" "767a620d0c752dd4d2f3d484fef7d03fcba7af80bda39f852d8508e2c766aa4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767a620d0c752dd4d2f3d484fef7d03fcba7af80bda39f852d8508e2c766aa4e", kill_on_drop: false }`
[INFO] [stdout] 767a620d0c752dd4d2f3d484fef7d03fcba7af80bda39f852d8508e2c766aa4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 56ad4cdb762e25b2baacc38679b109841c9bd8c36f5f1a46162768743f66e74e
[INFO] running `Command { std: "docker" "start" "-a" "56ad4cdb762e25b2baacc38679b109841c9bd8c36f5f1a46162768743f66e74e", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling assert_float_eq v1.1.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut current_complexity = complexity(&expr);
[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: unused variable: `current_complexity`
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut current_complexity = complexity(&expr);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_complexity`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `changed_in_this_pass` is assigned to, but never used
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     let mut changed_in_this_pass = false;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_changed_in_this_pass` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed_in_this_pass` is never read
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             changed_in_this_pass = true;
[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: value assigned to `changed_in_this_pass` is never read
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:96:25
[INFO] [stdout]    |
[INFO] [stdout] 96 |                         changed_in_this_pass |= result.1;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/numerical/value.rs:246:16
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter {
[INFO] [stdout]     |                ^^^^^ the lifetime is elided here ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter<'_> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/symbolic/expr/mod.rs:422:28
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn post_order_iter(&self) -> ExprIter {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn post_order_iter(&self) -> ExprIter<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty_assertions v1.4.0
[INFO] [stderr]    Compiling cas-compute v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::symbolic::simplify`
[INFO] [stdout]    --> src/symbolic/expr/mod.rs:869:9
[INFO] [stdout]     |
[INFO] [stdout] 869 |     use crate::symbolic::simplify;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut current_complexity = complexity(&expr);
[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: unused variable: `current_complexity`
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut current_complexity = complexity(&expr);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_complexity`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `changed_in_this_pass` is assigned to, but never used
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     let mut changed_in_this_pass = false;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_changed_in_this_pass` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed_in_this_pass` is never read
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             changed_in_this_pass = true;
[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: value assigned to `changed_in_this_pass` is never read
[INFO] [stdout]   --> src/symbolic/simplify/mod.rs:96:25
[INFO] [stdout]    |
[INFO] [stdout] 96 |                         changed_in_this_pass |= result.1;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/numerical/value.rs:246:16
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter {
[INFO] [stdout]     |                ^^^^^ the lifetime is elided here ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter<'_> {
[INFO] [stdout]     |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/symbolic/expr/mod.rs:422:28
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn post_order_iter(&self) -> ExprIter {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn post_order_iter(&self) -> ExprIter<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "56ad4cdb762e25b2baacc38679b109841c9bd8c36f5f1a46162768743f66e74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ad4cdb762e25b2baacc38679b109841c9bd8c36f5f1a46162768743f66e74e", kill_on_drop: false }`
[INFO] [stdout] 56ad4cdb762e25b2baacc38679b109841c9bd8c36f5f1a46162768743f66e74e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] d2025f56d043bb898c437013425cee1c59f20e07e19d18bf50b2a7a6f45c710c
[INFO] running `Command { std: "docker" "start" "-a" "d2025f56d043bb898c437013425cee1c59f20e07e19d18bf50b2a7a6f45c710c", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let mut current_complexity = complexity(&expr);
[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: unused variable: `current_complexity`
[INFO] [stderr]   --> src/symbolic/simplify/mod.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let mut current_complexity = complexity(&expr);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_complexity`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `changed_in_this_pass` is assigned to, but never used
[INFO] [stderr]   --> src/symbolic/simplify/mod.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |                     let mut changed_in_this_pass = false;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_changed_in_this_pass` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `changed_in_this_pass` is never read
[INFO] [stderr]   --> src/symbolic/simplify/mod.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             changed_in_this_pass = true;
[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: value assigned to `changed_in_this_pass` is never read
[INFO] [stderr]   --> src/symbolic/simplify/mod.rs:96:25
[INFO] [stderr]    |
[INFO] [stderr] 96 |                         changed_in_this_pass |= result.1;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/numerical/value.rs:246:16
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter {
[INFO] [stderr]     |                ^^^^^ the lifetime is elided here ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 246 |     pub fn fmt(&self, options: FormatOptions) -> ValueFormatter<'_> {
[INFO] [stderr]     |                                                                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/symbolic/expr/mod.rs:422:28
[INFO] [stderr]     |
[INFO] [stderr] 422 |     pub fn post_order_iter(&self) -> ExprIter {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 422 |     pub fn post_order_iter(&self) -> ExprIter<'_> {
[INFO] [stderr]     |                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::symbolic::simplify`
[INFO] [stderr]    --> src/symbolic/expr/mod.rs:869:9
[INFO] [stderr]     |
[INFO] [stderr] 869 |     use crate::symbolic::simplify;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cas-compute` (lib) generated 7 warnings (run `cargo fix --lib -p cas-compute` to apply 4 suggestions)
[INFO] [stderr] warning: `cas-compute` (lib test) generated 8 warnings (7 duplicates) (run `cargo fix --lib -p cas-compute --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/cas-compute/f761ff785d9ad273/deps/cas_compute-f761ff785d9ad273)
[INFO] [stdout] 
[INFO] [stdout] running 56 tests
[INFO] [stdout] test numerical::fmt::tests::complex_imaginary_edge ... ok
[INFO] [stdout] test numerical::fmt::tests::highly_precise_decimal ... ok
[INFO] [stdout] test numerical::fmt::tests::highly_precise_complex ... ok
[INFO] [stdout] test numerical::fmt::tests::highly_precise_decimal_3 ... ok
[INFO] [stdout] test numerical::fmt::tests::highly_precise_scientific ... ok
[INFO] [stdout] test numerical::fmt::tests::highly_precise_scientific_2 ... ok
[INFO] [stdout] test numerical::fmt::tests::scientific_e ... ok
[INFO] [stdout] test numerical::fmt::tests::trailing_zeroes_2 ... ok
[INFO] [stdout] test primitive::tests::radix_eval ... ok
[INFO] [stdout] test numerical::fmt::tests::trailing_zeroes ... ok
[INFO] [stdout] test symbolic::expr::tests::complicated_expr_2 ... ok
[INFO] [stdout] test symbolic::simplify::tests::add_fractions ... ok
[INFO] [stdout] test symbolic::expr::tests::simple_expr ... ok
[INFO] [stdout] test symbolic::expr::tests::non_commutative_hashing ... ok
[INFO] [stdout] test symbolic::expr::tests::same_symbols_not_eq ... ok
[INFO] [stdout] test symbolic::expr::tests::strict_equality_2 ... ok
[INFO] [stdout] test numerical::fmt::tests::complex_imaginary_part ... ok
[INFO] [stdout] test symbolic::expr::tests::complicated_expr ... ok
[INFO] [stdout] test symbolic::expr::tests::fmt_expr ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_terms ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_factors_strict_eq ... ok
[INFO] [stdout] test symbolic::expr::tests::factors_only ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_terms_mixed_number_types ... ok
[INFO] [stdout] test symbolic::simplify::tests::add_rules ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_terms_3 ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_terms_mixed_number_types_2 ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_factors_decimals ... ok
[INFO] [stdout] test symbolic::simplify::tests::complicated_combine_like_factors ... ok
[INFO] [stdout] test symbolic::simplify::tests::distribute ... ok
[INFO] [stdout] test symbolic::simplify::tests::distribute_2 ... ok
[INFO] [stdout] test symbolic::simplify::tests::add_fractions_with_factors ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_factors ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_factors_mul_numbers ... ok
[INFO] [stdout] test symbolic::expr::tests::commutative_hashing ... ok
[INFO] [stdout] test symbolic::simplify::tests::imaginary_num ... ok
[INFO] [stdout] test symbolic::simplify::tests::multiply_rules ... ok
[INFO] [stdout] test symbolic::simplify::tests::multiply_rules_2 ... ok
[INFO] [stdout] test symbolic::simplify::tests::expand_and_reduce ... ok
[INFO] [stdout] test symbolic::simplify::tests::power_rules_2 ... ok
[INFO] [stdout] test symbolic::simplify::tests::power_rule_steps ... ok
[INFO] [stdout] test symbolic::simplify::tests::power_rules_3b ... ok
[INFO] [stdout] test symbolic::simplify::tests::radicals ... ok
[INFO] [stdout] test symbolic::simplify::tests::power_rules_3a ... ok
[INFO] [stdout] test numerical::fmt::tests::highly_precise_decimal_2 ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_terms_2 ... ok
[INFO] [stdout] test symbolic::expr::tests::strict_equality ... ok
[INFO] [stdout] test symbolic::simplify::tests::combine_like_terms_decimals ... ok
[INFO] [stdout] test symbolic::simplify::tests::power_rules ... ok
[INFO] [stdout] test symbolic::simplify::tests::trigonometric_sine_2 ... ok
[INFO] [stdout] test symbolic::simplify::tests::root_rules ... ok
[INFO] [stdout] test symbolic::simplify::tests::simple_combine_like_factors ... ok
[INFO] [stdout] test symbolic::simplify::tests::trigonometric_sine ... ok
[INFO] [stdout] test symbolic::simplify::tests::trigonometric_sine_table ... ok
[INFO] [stdout] test symbolic::simplify::tests::trigonometric_tangent_table ... ok
[INFO] [stdout] test symbolic::simplify::tests::trigonometric_cosine_table ... ok
[INFO] [stdout] test symbolic::expr::tests::fmt_expr_2 ... ok
[INFO] [stderr]    Doc-tests cas_compute
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 56 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/symbolic/mod.rs - symbolic (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/funcs/mod.rs - funcs (line 14) ... ok
[INFO] [stdout] test src/symbolic/mod.rs - symbolic (line 58) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.72s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d2025f56d043bb898c437013425cee1c59f20e07e19d18bf50b2a7a6f45c710c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2025f56d043bb898c437013425cee1c59f20e07e19d18bf50b2a7a6f45c710c", kill_on_drop: false }`
[INFO] [stdout] d2025f56d043bb898c437013425cee1c59f20e07e19d18bf50b2a7a6f45c710c
