[INFO] fetching crate chunks-exacter 0.1.1...
[INFO] checking chunks-exacter-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate chunks-exacter 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate chunks-exacter 0.1.1
[INFO] finished tweaking crates.io crate chunks-exacter 0.1.1
[INFO] tweaked toml for crates.io crate chunks-exacter 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate chunks-exacter 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5b7eaea89ed656fe6195baf22973f3ba9914fd25880c68944168e3af8ceee00a
[INFO] running `Command { std: "docker" "start" "-a" "5b7eaea89ed656fe6195baf22973f3ba9914fd25880c68944168e3af8ceee00a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b7eaea89ed656fe6195baf22973f3ba9914fd25880c68944168e3af8ceee00a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b7eaea89ed656fe6195baf22973f3ba9914fd25880c68944168e3af8ceee00a", kill_on_drop: false }`
[INFO] [stdout] 5b7eaea89ed656fe6195baf22973f3ba9914fd25880c68944168e3af8ceee00a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d1311a268101bab658f13902702a88a038bb95ea54b3eda1c580cdb331e35967
[INFO] running `Command { std: "docker" "start" "-a" "d1311a268101bab658f13902702a88a038bb95ea54b3eda1c580cdb331e35967", kill_on_drop: false }`
[INFO] [stderr]     Checking chunks-exacter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ChunksExactest` is never constructed
[INFO] [stdout]   --> src/lib.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct ChunksExactest<'a, T: 'a, const N: usize> {
[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]   --> src/lib.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl<'a, T, const N: usize> ChunksExactest<'a, T, N> {
[INFO] [stdout]    | ---------------------------------------------------- associated function in this implementation
[INFO] [stdout] 53 |     fn new(slice: &'a [T]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChunksExactExt` is never used
[INFO] [stdout]   --> src/lib.rs:86:7
[INFO] [stdout]    |
[INFO] [stdout] 86 | trait ChunksExactExt<'a, T, const N: usize> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "d1311a268101bab658f13902702a88a038bb95ea54b3eda1c580cdb331e35967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1311a268101bab658f13902702a88a038bb95ea54b3eda1c580cdb331e35967", kill_on_drop: false }`
[INFO] [stdout] d1311a268101bab658f13902702a88a038bb95ea54b3eda1c580cdb331e35967