[INFO] fetching crate max_size_vec 0.1.0... [INFO] testing max_size_vec-0.1.0 against 1.49.0 for beta-1.50-1 [INFO] extracting crate max_size_vec 0.1.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate max_size_vec 0.1.0 on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] e764595b77ba48ad8a1821a3f2f751505b71af81dba7a87604a428f5c44ef5fa [INFO] running `Command { std: "docker" "start" "-a" "e764595b77ba48ad8a1821a3f2f751505b71af81dba7a87604a428f5c44ef5fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e764595b77ba48ad8a1821a3f2f751505b71af81dba7a87604a428f5c44ef5fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e764595b77ba48ad8a1821a3f2f751505b71af81dba7a87604a428f5c44ef5fa", kill_on_drop: false }` [INFO] [stdout] e764595b77ba48ad8a1821a3f2f751505b71af81dba7a87604a428f5c44ef5fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d4a13c1f470db4b86a6bf437980defcba560a083758e10c85e33434671a44fb6 [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" "d4a13c1f470db4b86a6bf437980defcba560a083758e10c85e33434671a44fb6", 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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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 PartialEq<[T; {OTHER}]> for MaxSizeVec { [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 PartialEq<&[T; {OTHER}]> for MaxSizeVec { [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" "d4a13c1f470db4b86a6bf437980defcba560a083758e10c85e33434671a44fb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4a13c1f470db4b86a6bf437980defcba560a083758e10c85e33434671a44fb6", kill_on_drop: false }` [INFO] [stdout] d4a13c1f470db4b86a6bf437980defcba560a083758e10c85e33434671a44fb6