[INFO] fetching crate at51 0.4.2...
[INFO] checking at51-0.4.2 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate at51 0.4.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate at51 0.4.2 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate at51 0.4.2
[INFO] finished tweaking crates.io crate at51 0.4.2
[INFO] tweaked toml for crates.io crate at51 0.4.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate at51 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded transpose v0.2.1
[INFO] [stderr]   Downloaded rustfft v6.0.1
[INFO] [stderr]   Downloaded ar v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9729dbf9904c0810c2f70a2f59f1cd21a642428b1a7780706b61cff8091cd135
[INFO] running `Command { std: "docker" "start" "-a" "9729dbf9904c0810c2f70a2f59f1cd21a642428b1a7780706b61cff8091cd135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9729dbf9904c0810c2f70a2f59f1cd21a642428b1a7780706b61cff8091cd135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9729dbf9904c0810c2f70a2f59f1cd21a642428b1a7780706b61cff8091cd135", kill_on_drop: false }`
[INFO] [stdout] 9729dbf9904c0810c2f70a2f59f1cd21a642428b1a7780706b61cff8091cd135
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd0e38f77209db20efbfcb7e8992fd68aa21b961b16241552b992e8df46850ab
[INFO] running `Command { std: "docker" "start" "-a" "dd0e38f77209db20efbfcb7e8992fd68aa21b961b16241552b992e8df46850ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking ar v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking transpose v0.2.1
[INFO] [stderr]     Checking primal-check v0.3.1
[INFO] [stderr]     Checking rustfft v6.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking at51 v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.50s
[INFO] running `Command { std: "docker" "inspect" "dd0e38f77209db20efbfcb7e8992fd68aa21b961b16241552b992e8df46850ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0e38f77209db20efbfcb7e8992fd68aa21b961b16241552b992e8df46850ab", kill_on_drop: false }`
[INFO] [stdout] dd0e38f77209db20efbfcb7e8992fd68aa21b961b16241552b992e8df46850ab