[INFO] cloning repository https://github.com/kamranajabbar/ch_16_concurrency_thread
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamranajabbar/ch_16_concurrency_thread" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_16_concurrency_thread", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_16_concurrency_thread'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b04b520f6ab4828c204cd35133be50622a850f7
[INFO] testing kamranajabbar/ch_16_concurrency_thread against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_16_concurrency_thread" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kamranajabbar/ch_16_concurrency_thread on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kamranajabbar/ch_16_concurrency_thread
[INFO] finished tweaking git repo https://github.com/kamranajabbar/ch_16_concurrency_thread
[INFO] tweaked toml for git repo https://github.com/kamranajabbar/ch_16_concurrency_thread written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/kamranajabbar/ch_16_concurrency_thread already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc1018307b40b3a59203be558bf40dd022cf32a30a8cbc6fe18beeb35732b0e5
[INFO] running `Command { std: "docker" "start" "-a" "dc1018307b40b3a59203be558bf40dd022cf32a30a8cbc6fe18beeb35732b0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc1018307b40b3a59203be558bf40dd022cf32a30a8cbc6fe18beeb35732b0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc1018307b40b3a59203be558bf40dd022cf32a30a8cbc6fe18beeb35732b0e5", kill_on_drop: false }`
[INFO] [stdout] dc1018307b40b3a59203be558bf40dd022cf32a30a8cbc6fe18beeb35732b0e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edc3b9a91e64dbf789c84ebf1b7c1525b93ab3fff00401203e5d3f7e9f54fd0f
[INFO] running `Command { std: "docker" "start" "-a" "edc3b9a91e64dbf789c84ebf1b7c1525b93ab3fff00401203e5d3f7e9f54fd0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ch_16_concurrency_thread v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "edc3b9a91e64dbf789c84ebf1b7c1525b93ab3fff00401203e5d3f7e9f54fd0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edc3b9a91e64dbf789c84ebf1b7c1525b93ab3fff00401203e5d3f7e9f54fd0f", kill_on_drop: false }`
[INFO] [stdout] edc3b9a91e64dbf789c84ebf1b7c1525b93ab3fff00401203e5d3f7e9f54fd0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a5eff86b0b4f7652878a32df7c1671c306b0ca13271e038dd3069b45327a76f
[INFO] running `Command { std: "docker" "start" "-a" "4a5eff86b0b4f7652878a32df7c1671c306b0ca13271e038dd3069b45327a76f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ch_16_concurrency_thread v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "4a5eff86b0b4f7652878a32df7c1671c306b0ca13271e038dd3069b45327a76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a5eff86b0b4f7652878a32df7c1671c306b0ca13271e038dd3069b45327a76f", kill_on_drop: false }`
[INFO] [stdout] 4a5eff86b0b4f7652878a32df7c1671c306b0ca13271e038dd3069b45327a76f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b3ea89df86bacdfbda30b9dfb891f6b2cffa34abd486fe20acfe1cc03b18a8fe
[INFO] running `Command { std: "docker" "start" "-a" "b3ea89df86bacdfbda30b9dfb891f6b2cffa34abd486fe20acfe1cc03b18a8fe", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch_16_concurrency_thread-eec53f123889d476)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b3ea89df86bacdfbda30b9dfb891f6b2cffa34abd486fe20acfe1cc03b18a8fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3ea89df86bacdfbda30b9dfb891f6b2cffa34abd486fe20acfe1cc03b18a8fe", kill_on_drop: false }`
[INFO] [stdout] b3ea89df86bacdfbda30b9dfb891f6b2cffa34abd486fe20acfe1cc03b18a8fe