[INFO] fetching crate idgen 0.1.2...
[INFO] testing idgen-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate idgen 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate idgen 0.1.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate idgen 0.1.2
[INFO] finished tweaking crates.io crate idgen 0.1.2
[INFO] tweaked toml for crates.io crate idgen 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 509f39288513a77985c40fef72cd8ed8c659fd19f01a988419ffa38be0f5c853
[INFO] running `Command { std: "docker" "start" "-a" "509f39288513a77985c40fef72cd8ed8c659fd19f01a988419ffa38be0f5c853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "509f39288513a77985c40fef72cd8ed8c659fd19f01a988419ffa38be0f5c853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509f39288513a77985c40fef72cd8ed8c659fd19f01a988419ffa38be0f5c853", kill_on_drop: false }`
[INFO] [stdout] 509f39288513a77985c40fef72cd8ed8c659fd19f01a988419ffa38be0f5c853
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 33e2f0488201cdbedc39e460ca962b57f27a13bf15d1a6d20d0a859b05e96940
[INFO] running `Command { std: "docker" "start" "-a" "33e2f0488201cdbedc39e460ca962b57f27a13bf15d1a6d20d0a859b05e96940", kill_on_drop: false }`
[INFO] [stderr]    Compiling idgen v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "33e2f0488201cdbedc39e460ca962b57f27a13bf15d1a6d20d0a859b05e96940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33e2f0488201cdbedc39e460ca962b57f27a13bf15d1a6d20d0a859b05e96940", kill_on_drop: false }`
[INFO] [stdout] 33e2f0488201cdbedc39e460ca962b57f27a13bf15d1a6d20d0a859b05e96940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc7db386a696780d0a05d770f0076260ac8cef05cd9d763e3d2b8f22407134cf
[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" "bc7db386a696780d0a05d770f0076260ac8cef05cd9d763e3d2b8f22407134cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling idgen v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "bc7db386a696780d0a05d770f0076260ac8cef05cd9d763e3d2b8f22407134cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7db386a696780d0a05d770f0076260ac8cef05cd9d763e3d2b8f22407134cf", kill_on_drop: false }`
[INFO] [stdout] bc7db386a696780d0a05d770f0076260ac8cef05cd9d763e3d2b8f22407134cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ed78462f3fa3f3294a7f16a1cb4710c8d0e38dbcf12cd44f1da76ecac949a4bc
[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" "ed78462f3fa3f3294a7f16a1cb4710c8d0e38dbcf12cd44f1da76ecac949a4bc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/idgen-72102a1156d75c1e)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_threads ... ok
[INFO] [stdout] test tests::test_uniq ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.34s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests idgen
[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" "ed78462f3fa3f3294a7f16a1cb4710c8d0e38dbcf12cd44f1da76ecac949a4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed78462f3fa3f3294a7f16a1cb4710c8d0e38dbcf12cd44f1da76ecac949a4bc", kill_on_drop: false }`
[INFO] [stdout] ed78462f3fa3f3294a7f16a1cb4710c8d0e38dbcf12cd44f1da76ecac949a4bc