[INFO] fetching crate algorithms_fourth 0.1.10...
[INFO] checking algorithms_fourth-0.1.10 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate algorithms_fourth 0.1.10 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate algorithms_fourth 0.1.10 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate algorithms_fourth 0.1.10
[INFO] finished tweaking crates.io crate algorithms_fourth 0.1.10
[INFO] tweaked toml for crates.io crate algorithms_fourth 0.1.10 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate algorithms_fourth 0.1.10 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" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a1f42997630de8e5edc36871975ea8cea3d089528ee4512e5d300620eaac6e6
[INFO] running `Command { std: "docker" "start" "-a" "7a1f42997630de8e5edc36871975ea8cea3d089528ee4512e5d300620eaac6e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a1f42997630de8e5edc36871975ea8cea3d089528ee4512e5d300620eaac6e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a1f42997630de8e5edc36871975ea8cea3d089528ee4512e5d300620eaac6e6", kill_on_drop: false }`
[INFO] [stdout] 7a1f42997630de8e5edc36871975ea8cea3d089528ee4512e5d300620eaac6e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32c8ab763e7a5cd36297d55f015e3c48dca66e2cca0b95065e34ea2adad14e69
[INFO] running `Command { std: "docker" "start" "-a" "32c8ab763e7a5cd36297d55f015e3c48dca66e2cca0b95065e34ea2adad14e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking algorithms_fourth v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search/sequential.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     let mut p = first;
[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] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search/sequential.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     let mut p = first;
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "32c8ab763e7a5cd36297d55f015e3c48dca66e2cca0b95065e34ea2adad14e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c8ab763e7a5cd36297d55f015e3c48dca66e2cca0b95065e34ea2adad14e69", kill_on_drop: false }`
[INFO] [stdout] 32c8ab763e7a5cd36297d55f015e3c48dca66e2cca0b95065e34ea2adad14e69
