[INFO] fetching crate ccitt-t4-t6 0.1.0...
[INFO] checking ccitt-t4-t6-0.1.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate ccitt-t4-t6 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ccitt-t4-t6 0.1.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ccitt-t4-t6 0.1.0
[INFO] finished tweaking crates.io crate ccitt-t4-t6 0.1.0
[INFO] tweaked toml for crates.io crate ccitt-t4-t6 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ccitt-t4-t6 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "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] b20517ec31051e34846135e51eaea98113877499a22b27ac435f80566f315f9c
[INFO] running `Command { std: "docker" "start" "-a" "b20517ec31051e34846135e51eaea98113877499a22b27ac435f80566f315f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b20517ec31051e34846135e51eaea98113877499a22b27ac435f80566f315f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20517ec31051e34846135e51eaea98113877499a22b27ac435f80566f315f9c", kill_on_drop: false }`
[INFO] [stdout] b20517ec31051e34846135e51eaea98113877499a22b27ac435f80566f315f9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6de05f08d8f957279c49d6d4b860a07aa5c5755461dfbb06c470af5848f14a28
[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" "6de05f08d8f957279c49d6d4b860a07aa5c5755461dfbb06c470af5848f14a28", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]    Compiling eyre v0.6.3
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking indenter v0.3.0
[INFO] [stderr]     Checking owo-colors v1.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking color-eyre v0.5.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking ccitt-t4-t6 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.50s
[INFO] running `Command { std: "docker" "inspect" "6de05f08d8f957279c49d6d4b860a07aa5c5755461dfbb06c470af5848f14a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6de05f08d8f957279c49d6d4b860a07aa5c5755461dfbb06c470af5848f14a28", kill_on_drop: false }`
[INFO] [stdout] 6de05f08d8f957279c49d6d4b860a07aa5c5755461dfbb06c470af5848f14a28
