[INFO] cloning repository https://github.com/ekovalev/rust_concurrency_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ekovalev/rust_concurrency_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekovalev%2Frust_concurrency_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekovalev%2Frust_concurrency_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3debcbda4f42ec641d94d14d2b124f1c7e79fa3
[INFO] testing ekovalev/rust_concurrency_test against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekovalev%2Frust_concurrency_test" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ekovalev/rust_concurrency_test on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ekovalev/rust_concurrency_test
[INFO] finished tweaking git repo https://github.com/ekovalev/rust_concurrency_test
[INFO] tweaked toml for git repo https://github.com/ekovalev/rust_concurrency_test written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/ekovalev/rust_concurrency_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d632e845cbac1889874add5b108149e155af65c2f0d7bd68c646a9c1c4e25760
[INFO] running `Command { std: "docker" "start" "-a" "d632e845cbac1889874add5b108149e155af65c2f0d7bd68c646a9c1c4e25760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d632e845cbac1889874add5b108149e155af65c2f0d7bd68c646a9c1c4e25760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d632e845cbac1889874add5b108149e155af65c2f0d7bd68c646a9c1c4e25760", kill_on_drop: false }`
[INFO] [stdout] d632e845cbac1889874add5b108149e155af65c2f0d7bd68c646a9c1c4e25760
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25b149415f64c9afadad884fd1ad4feb9afde875d79ffe3e8bc0882040b73e80
[INFO] running `Command { std: "docker" "start" "-a" "25b149415f64c9afadad884fd1ad4feb9afde875d79ffe3e8bc0882040b73e80", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling rust-concurrency-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.80s
[INFO] running `Command { std: "docker" "inspect" "25b149415f64c9afadad884fd1ad4feb9afde875d79ffe3e8bc0882040b73e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b149415f64c9afadad884fd1ad4feb9afde875d79ffe3e8bc0882040b73e80", kill_on_drop: false }`
[INFO] [stdout] 25b149415f64c9afadad884fd1ad4feb9afde875d79ffe3e8bc0882040b73e80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2444765d82e24616afb951a509de755e2389cb8f782c3883349bf4403531f56c
[INFO] running `Command { std: "docker" "start" "-a" "2444765d82e24616afb951a509de755e2389cb8f782c3883349bf4403531f56c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-concurrency-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "2444765d82e24616afb951a509de755e2389cb8f782c3883349bf4403531f56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2444765d82e24616afb951a509de755e2389cb8f782c3883349bf4403531f56c", kill_on_drop: false }`
[INFO] [stdout] 2444765d82e24616afb951a509de755e2389cb8f782c3883349bf4403531f56c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c29bc295673e927326d43b6b8a486ab45b42b4e9146b1c8534569cd11bc5dc2
[INFO] running `Command { std: "docker" "start" "-a" "8c29bc295673e927326d43b6b8a486ab45b42b4e9146b1c8534569cd11bc5dc2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_concurrency_test-c5f4838a54b14835)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_single_threaded_computations ... ok
[INFO] [stdout] test tests::test_multi_threaded_computations ... ok
[INFO] [stdout] test tests::test_timing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 17.21s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-concurrency-test
[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" "8c29bc295673e927326d43b6b8a486ab45b42b4e9146b1c8534569cd11bc5dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c29bc295673e927326d43b6b8a486ab45b42b4e9146b1c8534569cd11bc5dc2", kill_on_drop: false }`
[INFO] [stdout] 8c29bc295673e927326d43b6b8a486ab45b42b4e9146b1c8534569cd11bc5dc2