[INFO] cloning repository https://github.com/enosuity/fearless-concurrency
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enosuity/fearless-concurrency" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenosuity%2Ffearless-concurrency", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenosuity%2Ffearless-concurrency'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4e39bc55aa1ad1c03cd87d47213deb2c58dc603
[INFO] checking enosuity/fearless-concurrency against master#068609ce766e55d2e7371cd2a86143a6d7e8e2e4 for pr-138952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenosuity%2Ffearless-concurrency" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/enosuity/fearless-concurrency on toolchain 068609ce766e55d2e7371cd2a86143a6d7e8e2e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/enosuity/fearless-concurrency
[INFO] finished tweaking git repo https://github.com/enosuity/fearless-concurrency
[INFO] tweaked toml for git repo https://github.com/enosuity/fearless-concurrency written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/enosuity/fearless-concurrency 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" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-7-tc1/source/Cargo.toml: unused manifest key: dependencies.performance-considerations.default
[INFO] [stderr] warning: /workspace/builds/worker-7-tc1/source/Cargo.toml: unused manifest key: dependencies.singleton-wrapper.default
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef96841b1ced54d83bbce0071363ceaac3a20d80b3c78f447c044bfc63f3db35
[INFO] running `Command { std: "docker" "start" "-a" "ef96841b1ced54d83bbce0071363ceaac3a20d80b3c78f447c044bfc63f3db35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef96841b1ced54d83bbce0071363ceaac3a20d80b3c78f447c044bfc63f3db35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef96841b1ced54d83bbce0071363ceaac3a20d80b3c78f447c044bfc63f3db35", kill_on_drop: false }`
[INFO] [stdout] ef96841b1ced54d83bbce0071363ceaac3a20d80b3c78f447c044bfc63f3db35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbc729dd613e787a57f391852a429651e2acd96af665fefc74b3c86ea6e7eefd
[INFO] running `Command { std: "docker" "start" "-a" "cbc729dd613e787a57f391852a429651e2acd96af665fefc74b3c86ea6e7eefd", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: dependencies.performance-considerations.default
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: dependencies.singleton-wrapper.default
[INFO] [stderr]     Checking singleton-wrapper v0.1.0 (/opt/rustwide/workdir/singleton-wrapper)
[INFO] [stderr]     Checking custom-lock-guard v0.1.0 (/opt/rustwide/workdir/custom-lock-guard)
[INFO] [stderr]     Checking performance-considerations v0.1.0 (/opt/rustwide/workdir/performance-considerations)
[INFO] [stderr]     Checking fearless-concurrency v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "cbc729dd613e787a57f391852a429651e2acd96af665fefc74b3c86ea6e7eefd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbc729dd613e787a57f391852a429651e2acd96af665fefc74b3c86ea6e7eefd", kill_on_drop: false }`
[INFO] [stdout] cbc729dd613e787a57f391852a429651e2acd96af665fefc74b3c86ea6e7eefd