[INFO] fetching crate drain-while 0.1.0...
[INFO] testing drain-while-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate drain-while 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate drain-while 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drain-while 0.1.0
[INFO] finished tweaking crates.io crate drain-while 0.1.0
[INFO] tweaked toml for crates.io crate drain-while 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded easybench v0.1.4
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60cf007e73f2adb7a97cebd243ae5f40910fd1c329f84d10ba26dcb4f733660c
[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" "60cf007e73f2adb7a97cebd243ae5f40910fd1c329f84d10ba26dcb4f733660c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60cf007e73f2adb7a97cebd243ae5f40910fd1c329f84d10ba26dcb4f733660c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60cf007e73f2adb7a97cebd243ae5f40910fd1c329f84d10ba26dcb4f733660c", kill_on_drop: false }`
[INFO] [stdout] 60cf007e73f2adb7a97cebd243ae5f40910fd1c329f84d10ba26dcb4f733660c
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] d2baf685c2537492712e077c076a647b9eea5eca28e3694579a36c19e676a4cf
[INFO] running `Command { std: "docker" "start" "-a" "d2baf685c2537492712e077c076a647b9eea5eca28e3694579a36c19e676a4cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling drain-while v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "d2baf685c2537492712e077c076a647b9eea5eca28e3694579a36c19e676a4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2baf685c2537492712e077c076a647b9eea5eca28e3694579a36c19e676a4cf", kill_on_drop: false }`
[INFO] [stdout] d2baf685c2537492712e077c076a647b9eea5eca28e3694579a36c19e676a4cf
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3669c517a1b1ec8635a5a566e5ad244df1fcbb424b4822cad2ea8dad77a7bb6b
[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" "3669c517a1b1ec8635a5a566e5ad244df1fcbb424b4822cad2ea8dad77a7bb6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling easybench v0.1.4
[INFO] [stderr]    Compiling drain-while v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "3669c517a1b1ec8635a5a566e5ad244df1fcbb424b4822cad2ea8dad77a7bb6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3669c517a1b1ec8635a5a566e5ad244df1fcbb424b4822cad2ea8dad77a7bb6b", kill_on_drop: false }`
[INFO] [stdout] 3669c517a1b1ec8635a5a566e5ad244df1fcbb424b4822cad2ea8dad77a7bb6b
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 9fb3b64e1a5b3def9c9c090fad16a2273bd96e2c39dd23044a5930804f33d20f
[INFO] running `Command { std: "docker" "start" "-a" "9fb3b64e1a5b3def9c9c090fad16a2273bd96e2c39dd23044a5930804f33d20f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/drain_while-01e024c2215ebef2
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests drain_while
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lib.rs - DrainWhileable::drain_while (line 30) ... ok
[INFO] [stdout] test lib.rs - DrainWhileable::drain_while (line 46) ... ok
[INFO] [stdout] test lib.rs - (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9fb3b64e1a5b3def9c9c090fad16a2273bd96e2c39dd23044a5930804f33d20f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fb3b64e1a5b3def9c9c090fad16a2273bd96e2c39dd23044a5930804f33d20f", kill_on_drop: false }`
[INFO] [stdout] 9fb3b64e1a5b3def9c9c090fad16a2273bd96e2c39dd23044a5930804f33d20f