[INFO] fetching crate buffertk 0.12.0...
[INFO] checking buffertk-0.12.0 against try#0c7fed2b7584d310ca8221267fa1b3bec4df427f for pr-133502-4
[INFO] extracting crate buffertk 0.12.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate buffertk 0.12.0 on toolchain 0c7fed2b7584d310ca8221267fa1b3bec4df427f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buffertk 0.12.0
[INFO] finished tweaking crates.io crate buffertk 0.12.0
[INFO] tweaked toml for crates.io crate buffertk 0.12.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate buffertk 0.12.0 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" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2939dcf0a79c79c664bba13485cbcdd5d07272292b1749a06e5b621d20ff5da2
[INFO] running `Command { std: "docker" "start" "-a" "2939dcf0a79c79c664bba13485cbcdd5d07272292b1749a06e5b621d20ff5da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2939dcf0a79c79c664bba13485cbcdd5d07272292b1749a06e5b621d20ff5da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2939dcf0a79c79c664bba13485cbcdd5d07272292b1749a06e5b621d20ff5da2", kill_on_drop: false }`
[INFO] [stdout] 2939dcf0a79c79c664bba13485cbcdd5d07272292b1749a06e5b621d20ff5da2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a38b21f2f885e42c7cf2d2a8925118293dfd9845c8fd61409c6d00249244e56f
[INFO] running `Command { std: "docker" "start" "-a" "a38b21f2f885e42c7cf2d2a8925118293dfd9845c8fd61409c6d00249244e56f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking buffertk v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking sig_fig_histogram v0.5.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling derive_util v0.4.0
[INFO] [stderr]    Compiling arrrg_derive v0.7.0
[INFO] [stderr]     Checking arrrg v0.7.0
[INFO] [stderr]     Checking guacamole v0.11.0
[INFO] [stderr]     Checking statslicer v0.8.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "a38b21f2f885e42c7cf2d2a8925118293dfd9845c8fd61409c6d00249244e56f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a38b21f2f885e42c7cf2d2a8925118293dfd9845c8fd61409c6d00249244e56f", kill_on_drop: false }`
[INFO] [stdout] a38b21f2f885e42c7cf2d2a8925118293dfd9845c8fd61409c6d00249244e56f