[INFO] fetching crate id-pool 0.2.1...
[INFO] testing id-pool-0.2.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate id-pool 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate id-pool 0.2.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate id-pool 0.2.1
[INFO] finished tweaking crates.io crate id-pool 0.2.1
[INFO] tweaked toml for crates.io crate id-pool 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c84c62b93f288e9dcad3cb25da4c8364109736b9f7c4905fa4d4153c54e88ccd
[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" "c84c62b93f288e9dcad3cb25da4c8364109736b9f7c4905fa4d4153c54e88ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c84c62b93f288e9dcad3cb25da4c8364109736b9f7c4905fa4d4153c54e88ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c84c62b93f288e9dcad3cb25da4c8364109736b9f7c4905fa4d4153c54e88ccd", kill_on_drop: false }`
[INFO] [stdout] c84c62b93f288e9dcad3cb25da4c8364109736b9f7c4905fa4d4153c54e88ccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "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] 4f0a8030b311cd047ec3b73ce694e16cb8d987000f4d065c5ea186e3d58e2fce
[INFO] running `Command { std: "docker" "start" "-a" "4f0a8030b311cd047ec3b73ce694e16cb8d987000f4d065c5ea186e3d58e2fce", kill_on_drop: false }`
[INFO] [stderr]    Compiling id-pool v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "4f0a8030b311cd047ec3b73ce694e16cb8d987000f4d065c5ea186e3d58e2fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0a8030b311cd047ec3b73ce694e16cb8d987000f4d065c5ea186e3d58e2fce", kill_on_drop: false }`
[INFO] [stdout] 4f0a8030b311cd047ec3b73ce694e16cb8d987000f4d065c5ea186e3d58e2fce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d514678d889728445e0d2e98c1de6fea1633d0403cc7ea0de347de2c71036b2
[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" "1d514678d889728445e0d2e98c1de6fea1633d0403cc7ea0de347de2c71036b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling id-pool v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.69s
[INFO] running `Command { std: "docker" "inspect" "1d514678d889728445e0d2e98c1de6fea1633d0403cc7ea0de347de2c71036b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d514678d889728445e0d2e98c1de6fea1633d0403cc7ea0de347de2c71036b2", kill_on_drop: false }`
[INFO] [stdout] 1d514678d889728445e0d2e98c1de6fea1633d0403cc7ea0de347de2c71036b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", 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] e2a72be7473052365c2eca3c326fdadd21d6ca64344692e8ae688953c419589f
[INFO] running `Command { std: "docker" "start" "-a" "e2a72be7473052365c2eca3c326fdadd21d6ca64344692e8ae688953c419589f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/id_pool-f83bce6b6bee2fba)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::used_count ... ok
[INFO] [stdout] test tests::request ... ok
[INFO] [stderr]    Doc-tests id-pool
[INFO] [stdout] test tests::request_return ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - IdPool (line 61) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e2a72be7473052365c2eca3c326fdadd21d6ca64344692e8ae688953c419589f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2a72be7473052365c2eca3c326fdadd21d6ca64344692e8ae688953c419589f", kill_on_drop: false }`
[INFO] [stdout] e2a72be7473052365c2eca3c326fdadd21d6ca64344692e8ae688953c419589f