[INFO] cloning repository https://github.com/rafalpiotrowski/fluency-pow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rafalpiotrowski/fluency-pow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafalpiotrowski%2Ffluency-pow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafalpiotrowski%2Ffluency-pow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 538f0251b92bc1bede972b4a0d624a16b2173db5
[INFO] checking rafalpiotrowski/fluency-pow against master#b2728d5426bab1d8c39709768c7e22b7f66dde5d for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafalpiotrowski%2Ffluency-pow" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rafalpiotrowski/fluency-pow on toolchain b2728d5426bab1d8c39709768c7e22b7f66dde5d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rafalpiotrowski/fluency-pow
[INFO] finished tweaking git repo https://github.com/rafalpiotrowski/fluency-pow
[INFO] tweaked toml for git repo https://github.com/rafalpiotrowski/fluency-pow written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rafalpiotrowski/fluency-pow 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" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a218eca5643650edaa4c32ef113ecf5550dc6cc59e592dfc5dc86bb413d195d
[INFO] running `Command { std: "docker" "start" "-a" "9a218eca5643650edaa4c32ef113ecf5550dc6cc59e592dfc5dc86bb413d195d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a218eca5643650edaa4c32ef113ecf5550dc6cc59e592dfc5dc86bb413d195d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a218eca5643650edaa4c32ef113ecf5550dc6cc59e592dfc5dc86bb413d195d", kill_on_drop: false }`
[INFO] [stdout] 9a218eca5643650edaa4c32ef113ecf5550dc6cc59e592dfc5dc86bb413d195d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5817a31edc7386b92b81550db06cb8fc36506e6479e1dd22cbe9cf108ce5fd8
[INFO] running `Command { std: "docker" "start" "-a" "f5817a31edc7386b92b81550db06cb8fc36506e6479e1dd22cbe9cf108ce5fd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking crypto-common v0.1.1
[INFO] [stderr]     Checking digest v0.10.1
[INFO] [stderr]     Checking sha2 v0.10.1
[INFO] [stderr]     Checking fluency-pow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "f5817a31edc7386b92b81550db06cb8fc36506e6479e1dd22cbe9cf108ce5fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5817a31edc7386b92b81550db06cb8fc36506e6479e1dd22cbe9cf108ce5fd8", kill_on_drop: false }`
[INFO] [stdout] f5817a31edc7386b92b81550db06cb8fc36506e6479e1dd22cbe9cf108ce5fd8