[INFO] fetching crate max_size_vec 0.1.0...
[INFO] testing max_size_vec-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate max_size_vec 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate max_size_vec 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate max_size_vec 0.1.0
[INFO] finished tweaking crates.io crate max_size_vec 0.1.0
[INFO] tweaked toml for crates.io crate max_size_vec 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d9b811ff532c58cafd3da871c0f26dc0d5b0b22f5d4608a8d94bc4b1b53339a4
[INFO] running `Command { std: "docker" "start" "-a" "d9b811ff532c58cafd3da871c0f26dc0d5b0b22f5d4608a8d94bc4b1b53339a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9b811ff532c58cafd3da871c0f26dc0d5b0b22f5d4608a8d94bc4b1b53339a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9b811ff532c58cafd3da871c0f26dc0d5b0b22f5d4608a8d94bc4b1b53339a4", kill_on_drop: false }`
[INFO] [stdout] d9b811ff532c58cafd3da871c0f26dc0d5b0b22f5d4608a8d94bc4b1b53339a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92940afd878a15c1bbf7b1cd008335059c124bf760f434c667916814dcc73fb5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "92940afd878a15c1bbf7b1cd008335059c124bf760f434c667916814dcc73fb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling max_size_vec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #![feature(min_const_generics)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]    --> src/lib.rs:162:73
[INFO] [stdout]     |
[INFO] [stdout] 162 | impl<T: PartialEq, const SIZE: usize, const OTHER: usize> PartialEq<[T; {OTHER}]> for MaxSizeVec<T, {SIZE}> {
[INFO] [stdout]     |                                                                         ^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]    --> src/lib.rs:163:30
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn eq(&self, other: &[T; {OTHER}]) -> bool {
[INFO] [stdout]     |                              ^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]    --> src/lib.rs:168:74
[INFO] [stdout]     |
[INFO] [stdout] 168 | impl<T: PartialEq, const SIZE: usize, const OTHER: usize> PartialEq<&[T; {OTHER}]> for MaxSizeVec<T, {SIZE}> {
[INFO] [stdout]     |                                                                          ^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]    --> src/lib.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn eq(&self, other: &&[T; {OTHER}]) -> bool {
[INFO] [stdout]     |                               ^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `max_size_vec`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "92940afd878a15c1bbf7b1cd008335059c124bf760f434c667916814dcc73fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92940afd878a15c1bbf7b1cd008335059c124bf760f434c667916814dcc73fb5", kill_on_drop: false }`
[INFO] [stdout] 92940afd878a15c1bbf7b1cd008335059c124bf760f434c667916814dcc73fb5
