[INFO] cloning repository https://github.com/Choi-Jungwoo/no-regrets-concurrency-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Choi-Jungwoo/no-regrets-concurrency-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoi-Jungwoo%2Fno-regrets-concurrency-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoi-Jungwoo%2Fno-regrets-concurrency-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 301065856e90000dc3899dddfe564202b3efbc73
[INFO] checking Choi-Jungwoo/no-regrets-concurrency-example against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChoi-Jungwoo%2Fno-regrets-concurrency-example" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Choi-Jungwoo/no-regrets-concurrency-example on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Choi-Jungwoo/no-regrets-concurrency-example
[INFO] finished tweaking git repo https://github.com/Choi-Jungwoo/no-regrets-concurrency-example
[INFO] tweaked toml for git repo https://github.com/Choi-Jungwoo/no-regrets-concurrency-example written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Choi-Jungwoo/no-regrets-concurrency-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.1
[INFO] [stderr]   Downloaded memoffset v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d15c7d7f86d7982d7c8c55e19bcd804e738eac33067c1c34db6a2185e6be4636
[INFO] running `Command { std: "docker" "start" "-a" "d15c7d7f86d7982d7c8c55e19bcd804e738eac33067c1c34db6a2185e6be4636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d15c7d7f86d7982d7c8c55e19bcd804e738eac33067c1c34db6a2185e6be4636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d15c7d7f86d7982d7c8c55e19bcd804e738eac33067c1c34db6a2185e6be4636", kill_on_drop: false }`
[INFO] [stdout] d15c7d7f86d7982d7c8c55e19bcd804e738eac33067c1c34db6a2185e6be4636
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da5ba41a886361784c5850d5493583d54aa26ab3f33edbd026b979e9f8a4a5a3
[INFO] running `Command { std: "docker" "start" "-a" "da5ba41a886361784c5850d5493583d54aa26ab3f33edbd026b979e9f8a4a5a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking no-regrets-concurrency-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "da5ba41a886361784c5850d5493583d54aa26ab3f33edbd026b979e9f8a4a5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da5ba41a886361784c5850d5493583d54aa26ab3f33edbd026b979e9f8a4a5a3", kill_on_drop: false }`
[INFO] [stdout] da5ba41a886361784c5850d5493583d54aa26ab3f33edbd026b979e9f8a4a5a3