[INFO] fetching crate cpubars 0.5.0...
[INFO] checking cpubars-0.5.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate cpubars 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cpubars 0.5.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpubars 0.5.0
[INFO] finished tweaking crates.io crate cpubars 0.5.0
[INFO] tweaked toml for crates.io crate cpubars 0.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate cpubars 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.27
[INFO] [stderr]   Downloaded derive_more v0.99.3
[INFO] [stderr]   Downloaded snafu-derive v0.6.3
[INFO] [stderr]   Downloaded darwin-libproc v0.1.2
[INFO] [stderr]   Downloaded snafu v0.6.3
[INFO] [stderr]   Downloaded unescape v0.1.0
[INFO] [stderr]   Downloaded psutil v3.0.1
[INFO] [stderr]   Downloaded platforms v0.2.1
[INFO] [stderr]   Downloaded darwin-libproc-sys v0.1.2
[INFO] [stderr]   Downloaded nix v0.17.0
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3847c6d40cf1a82e0bbafad2daf3c29668c317730c75284d19f3a84af4b99c90
[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" "3847c6d40cf1a82e0bbafad2daf3c29668c317730c75284d19f3a84af4b99c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3847c6d40cf1a82e0bbafad2daf3c29668c317730c75284d19f3a84af4b99c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3847c6d40cf1a82e0bbafad2daf3c29668c317730c75284d19f3a84af4b99c90", kill_on_drop: false }`
[INFO] [stdout] 3847c6d40cf1a82e0bbafad2daf3c29668c317730c75284d19f3a84af4b99c90
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6aeef106c7d354fabd19fdc69ed578a65331bba9af023e8d5109fddcdcaa2a3e
[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" "6aeef106c7d354fabd19fdc69ed578a65331bba9af023e8d5109fddcdcaa2a3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.27
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking unescape v0.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking platforms v0.2.1
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling snafu-derive v0.6.3
[INFO] [stderr]    Compiling derive_more v0.99.3
[INFO] [stderr]     Checking snafu v0.6.3
[INFO] [stderr]     Checking psutil v3.0.1
[INFO] [stderr]     Checking cpubars v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.37s
[INFO] running `Command { std: "docker" "inspect" "6aeef106c7d354fabd19fdc69ed578a65331bba9af023e8d5109fddcdcaa2a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aeef106c7d354fabd19fdc69ed578a65331bba9af023e8d5109fddcdcaa2a3e", kill_on_drop: false }`
[INFO] [stdout] 6aeef106c7d354fabd19fdc69ed578a65331bba9af023e8d5109fddcdcaa2a3e