[INFO] cloning repository https://github.com/fee1-dead/flatt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fee1-dead/flatt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffee1-dead%2Fflatt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffee1-dead%2Fflatt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 995c22fdc9ac0283f46d211f0ec97b684ddd68d1
[INFO] checking fee1-dead/flatt against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffee1-dead%2Fflatt" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fee1-dead/flatt
[INFO] finished tweaking git repo https://github.com/fee1-dead/flatt
[INFO] tweaked toml for git repo https://github.com/fee1-dead/flatt written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fee1-dead/flatt on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fee1-dead/flatt 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-2-tc1/source/flatt_derive/Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `flatt_derive` library target)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.10
[INFO] [stderr]   Downloaded quote v1.0.29
[INFO] [stderr]   Downloaded proc-macro2 v1.0.64
[INFO] [stderr]   Downloaded syn v2.0.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dc7b7ade56833758457be2646c9c543da3fce6c65411783152de4a5e134366f
[INFO] running `Command { std: "docker" "start" "-a" "1dc7b7ade56833758457be2646c9c543da3fce6c65411783152de4a5e134366f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dc7b7ade56833758457be2646c9c543da3fce6c65411783152de4a5e134366f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc7b7ade56833758457be2646c9c543da3fce6c65411783152de4a5e134366f", kill_on_drop: false }`
[INFO] [stdout] 1dc7b7ade56833758457be2646c9c543da3fce6c65411783152de4a5e134366f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 142f02e379a137cf78341709a8e582cfe8ce118c51feff60c846fd72cf9e781a
[INFO] running `Command { std: "docker" "start" "-a" "142f02e379a137cf78341709a8e582cfe8ce118c51feff60c846fd72cf9e781a", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/flatt_derive/Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `flatt_derive` library target)
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]     Checking syn v2.0.24
[INFO] [stderr]     Checking flatt_derive v0.1.0 (/opt/rustwide/workdir/flatt_derive)
[INFO] [stderr]     Checking flatt v0.1.0 (/opt/rustwide/workdir/flatt)
[INFO] [stderr]     Checking flattt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: meta-variables within meta-variable expressions must be referenced using a dollar sign
[INFO] [stdout]    --> src/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         $(${ignore(ty)} <Min<)* $ty1 $(, $ty> as TypeOp>::Result)*
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: meta-variables within meta-variable expressions must be referenced using a dollar sign
[INFO] [stdout]    --> src/main.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         $(${ignore(ty)} <MinGreaterThan<)* $ty1 $(, $ty, $e> as TypeOp>::Result)*
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attempted to repeat an expression containing no syntax variables matched as repeating at this depth
[INFO] [stdout]    --> src/main.rs:129:10
[INFO] [stdout]     |
[INFO] [stdout] 129 |         $(${ignore(ty)} <Min<)* $ty1 $(, $ty> as TypeOp>::Result)*
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attempted to repeat an expression containing no syntax variables matched as repeating at this depth
[INFO] [stdout]    --> src/main.rs:132:10
[INFO] [stdout]     |
[INFO] [stdout] 132 |         $(${ignore(ty)} <MinGreaterThan<)* $ty1 $(, $ty, $e> as TypeOp>::Result)*
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     generic_const_exprs,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ManuallyDrop`, `align_of`, `offset_of`, and `size_of`
[INFO] [stdout]  --> src/main.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::mem::{align_of, offset_of, size_of, ManuallyDrop, MaybeUninit};
[INFO] [stdout]   |                ^^^^^^^^  ^^^^^^^^^  ^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flatt::Inaccessible`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use flatt::Inaccessible;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `take_te_ref`
[INFO] [stdout]    --> src/main.rs:151:14
[INFO] [stdout]     |
[INFO] [stdout] 151 | macro_rules! take_te_ref {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `Bar`
[INFO] [stdout]    --> src/main.rs:162:14
[INFO] [stdout]     |
[INFO] [stdout] 162 | macro_rules! Bar {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `offset_of` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     offset_of,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `maybe_uninit_uninit_array`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     maybe_uninit_uninit_array
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: meta-variables within meta-variable expressions must be referenced using a dollar sign
[INFO] [stdout]    --> src/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         $(${ignore(ty)} <Min<)* $ty1 $(, $ty> as TypeOp>::Result)*
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: meta-variables within meta-variable expressions must be referenced using a dollar sign
[INFO] [stdout]    --> src/main.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         $(${ignore(ty)} <MinGreaterThan<)* $ty1 $(, $ty, $e> as TypeOp>::Result)*
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attempted to repeat an expression containing no syntax variables matched as repeating at this depth
[INFO] [stdout]    --> src/main.rs:129:10
[INFO] [stdout]     |
[INFO] [stdout] 129 |         $(${ignore(ty)} <Min<)* $ty1 $(, $ty> as TypeOp>::Result)*
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attempted to repeat an expression containing no syntax variables matched as repeating at this depth
[INFO] [stdout]    --> src/main.rs:132:10
[INFO] [stdout]     |
[INFO] [stdout] 132 |         $(${ignore(ty)} <MinGreaterThan<)* $ty1 $(, $ty, $e> as TypeOp>::Result)*
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TypeOp` is not satisfied
[INFO] [stdout]    --> src/main.rs:128:44
[INFO] [stdout]     |
[INFO] [stdout] 128 |       ([$ty1:ty, $($ty:ty),*$(,)?]$([])?) => {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 129 | |         $(${ignore(ty)} <Min<)* $ty1 $(, $ty> as TypeOp>::Result)*
[INFO] [stdout] 130 | |     };
[INFO] [stdout]     | |_____^ the trait `TypeOp` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `TypeOp`:
[INFO] [stdout]               Choose<A, B, false>
[INFO] [stdout]               Choose<A, B, true>
[INFO] [stdout]               Min<A, B>
[INFO] [stdout]               MinGreaterThan<A, B, LOWER_BOUND>
[INFO] [stdout]               TypeVal<T, VALUE>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TypeOp` is not satisfied
[INFO] [stdout]    --> src/main.rs:131:49
[INFO] [stdout]     |
[INFO] [stdout] 131 |       ([$ty1:ty, $($ty:ty),*$(,)?][][$e:expr]) => {
[INFO] [stdout]     |  _________________________________________________^
[INFO] [stdout] 132 | |         $(${ignore(ty)} <MinGreaterThan<)* $ty1 $(, $ty, $e> as TypeOp>::Result)*
[INFO] [stdout] 133 | |     };
[INFO] [stdout]     | |_____^ the trait `TypeOp` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `TypeOp`:
[INFO] [stdout]               Choose<A, B, false>
[INFO] [stdout]               Choose<A, B, true>
[INFO] [stdout]               Min<A, B>
[INFO] [stdout]               MinGreaterThan<A, B, LOWER_BOUND>
[INFO] [stdout]               TypeVal<T, VALUE>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     generic_const_exprs,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ManuallyDrop`, `align_of`, `offset_of`, and `size_of`
[INFO] [stdout]  --> src/main.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::mem::{align_of, offset_of, size_of, ManuallyDrop, MaybeUninit};
[INFO] [stdout]   |                ^^^^^^^^  ^^^^^^^^^  ^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `flatt::Inaccessible`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use flatt::Inaccessible;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `take_te_ref`
[INFO] [stdout]    --> src/main.rs:151:14
[INFO] [stdout]     |
[INFO] [stdout] 151 | macro_rules! take_te_ref {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `Bar`
[INFO] [stdout]    --> src/main.rs:162:14
[INFO] [stdout]     |
[INFO] [stdout] 162 | macro_rules! Bar {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `offset_of` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     offset_of,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `maybe_uninit_uninit_array`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     maybe_uninit_uninit_array
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_ref`
[INFO] [stdout]    --> src/main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let x_ref = &*Guard::new(
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_ref`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:143:14
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn takes(mut x: Hihi) {
[INFO] [stdout]     |              ----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(): TypeOp` is not satisfied
[INFO] [stdout]    --> src/main.rs:128:44
[INFO] [stdout]     |
[INFO] [stdout] 128 |       ([$ty1:ty, $($ty:ty),*$(,)?]$([])?) => {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 129 | |         $(${ignore(ty)} <Min<)* $ty1 $(, $ty> as TypeOp>::Result)*
[INFO] [stdout] 130 | |     };
[INFO] [stdout]     | |_____^ the trait `TypeOp` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `TypeOp`:
[INFO] [stdout]               Choose<A, B, false>
[INFO] [stdout]               Choose<A, B, true>
[INFO] [stdout]               Min<A, B>
[INFO] [stdout]               MinGreaterThan<A, B, LOWER_BOUND>
[INFO] [stdout]               TypeVal<T, VALUE>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flattt` (bin "flattt") due to 7 previous errors; 8 warnings emitted
[INFO] [stdout] error[E0277]: the trait bound `(): TypeOp` is not satisfied
[INFO] [stdout]    --> src/main.rs:131:49
[INFO] [stdout]     |
[INFO] [stdout] 131 |       ([$ty1:ty, $($ty:ty),*$(,)?][][$e:expr]) => {
[INFO] [stdout]     |  _________________________________________________^
[INFO] [stdout] 132 | |         $(${ignore(ty)} <MinGreaterThan<)* $ty1 $(, $ty, $e> as TypeOp>::Result)*
[INFO] [stdout] 133 | |     };
[INFO] [stdout]     | |_____^ the trait `TypeOp` is not implemented for `()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `TypeOp`:
[INFO] [stdout]               Choose<A, B, false>
[INFO] [stdout]               Choose<A, B, true>
[INFO] [stdout]               Min<A, B>
[INFO] [stdout]               MinGreaterThan<A, B, LOWER_BOUND>
[INFO] [stdout]               TypeVal<T, VALUE>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `x_ref`
[INFO] [stdout]    --> src/main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let x_ref = &*Guard::new(
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_ref`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:143:14
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn takes(mut x: Hihi) {
[INFO] [stdout]     |              ----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flattt` (bin "flattt" test) due to 7 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "142f02e379a137cf78341709a8e582cfe8ce118c51feff60c846fd72cf9e781a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "142f02e379a137cf78341709a8e582cfe8ce118c51feff60c846fd72cf9e781a", kill_on_drop: false }`
[INFO] [stdout] 142f02e379a137cf78341709a8e582cfe8ce118c51feff60c846fd72cf9e781a