[INFO] updating cached repository https://github.com/hrd2019/thread_pool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6bbaa74e3500a65b0b5920d1411f2342142b7a6b
[INFO] checking hrd2019/thread_pool against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhrd2019%2Fthread_pool" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hrd2019/thread_pool on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hrd2019/thread_pool
[INFO] finished tweaking git repo https://github.com/hrd2019/thread_pool
[INFO] tweaked toml for git repo https://github.com/hrd2019/thread_pool written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/hrd2019/thread_pool already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 454a968752488ecaf314a85899a2f4aa2ac386bf6d83168cfb27ffe99056f5fd
[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" "454a968752488ecaf314a85899a2f4aa2ac386bf6d83168cfb27ffe99056f5fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "454a968752488ecaf314a85899a2f4aa2ac386bf6d83168cfb27ffe99056f5fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454a968752488ecaf314a85899a2f4aa2ac386bf6d83168cfb27ffe99056f5fd", kill_on_drop: false }`
[INFO] [stdout] 454a968752488ecaf314a85899a2f4aa2ac386bf6d83168cfb27ffe99056f5fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db5602814f4d3bd4ecca475b30144fb03e33ca125c4173d32de110c9af5870b2
[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" "db5602814f4d3bd4ecca475b30144fb03e33ca125c4173d32de110c9af5870b2", 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]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking pad v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking iso8601 v0.1.1
[INFO] [stderr]     Checking locale v0.2.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking datetime v0.4.7
[INFO] [stderr]     Checking thread_pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.61s
[INFO] running `Command { std: "docker" "inspect" "db5602814f4d3bd4ecca475b30144fb03e33ca125c4173d32de110c9af5870b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db5602814f4d3bd4ecca475b30144fb03e33ca125c4173d32de110c9af5870b2", kill_on_drop: false }`
[INFO] [stdout] db5602814f4d3bd4ecca475b30144fb03e33ca125c4173d32de110c9af5870b2