[INFO] fetching crate devker 0.1.6...
[INFO] testing devker-0.1.6 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate devker 0.1.6 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate devker 0.1.6 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 devker 0.1.6
[INFO] finished tweaking crates.io crate devker 0.1.6
[INFO] tweaked toml for crates.io crate devker 0.1.6 written to /workspace/builds/worker-12/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 0dbd5feead312e7e16b1cd581a1c10cd00c0e239d32593f30fc7b548e84729f7
[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" "0dbd5feead312e7e16b1cd581a1c10cd00c0e239d32593f30fc7b548e84729f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dbd5feead312e7e16b1cd581a1c10cd00c0e239d32593f30fc7b548e84729f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dbd5feead312e7e16b1cd581a1c10cd00c0e239d32593f30fc7b548e84729f7", kill_on_drop: false }`
[INFO] [stdout] 0dbd5feead312e7e16b1cd581a1c10cd00c0e239d32593f30fc7b548e84729f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] d28b6db080155ddfffc945aaf649933d5a8d26545758b1797e7a3d85dfb15c55
[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" "d28b6db080155ddfffc945aaf649933d5a8d26545758b1797e7a3d85dfb15c55", kill_on_drop: false }`
[INFO] [stderr]    Compiling devker v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "d28b6db080155ddfffc945aaf649933d5a8d26545758b1797e7a3d85dfb15c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d28b6db080155ddfffc945aaf649933d5a8d26545758b1797e7a3d85dfb15c55", kill_on_drop: false }`
[INFO] [stdout] d28b6db080155ddfffc945aaf649933d5a8d26545758b1797e7a3d85dfb15c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 3d029e13e2b1358666da911bfa02e1e1f0e00aab430252aaa60006b1a7090704
[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" "3d029e13e2b1358666da911bfa02e1e1f0e00aab430252aaa60006b1a7090704", kill_on_drop: false }`
[INFO] [stderr]    Compiling devker v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "3d029e13e2b1358666da911bfa02e1e1f0e00aab430252aaa60006b1a7090704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d029e13e2b1358666da911bfa02e1e1f0e00aab430252aaa60006b1a7090704", kill_on_drop: false }`
[INFO] [stdout] 3d029e13e2b1358666da911bfa02e1e1f0e00aab430252aaa60006b1a7090704
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 6c1581ae3f4101f316c93c1ff85975d0931708473ce5bb95fd461e4cf2965416
[INFO] running `Command { std: "docker" "start" "-a" "6c1581ae3f4101f316c93c1ff85975d0931708473ce5bb95fd461e4cf2965416", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/devker-949cdeeffd9b117f
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests devker
[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 4 tests
[INFO] [stdout] test src/deflate.rs - deflate (line 21) ... ok
[INFO] [stdout] test src/zlib.rs - zlib (line 21) ... ok
[INFO] [stdout] test src/zlib.rs - zlib (line 6) ... ok
[INFO] [stdout] test src/deflate.rs - deflate (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.91s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6c1581ae3f4101f316c93c1ff85975d0931708473ce5bb95fd461e4cf2965416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1581ae3f4101f316c93c1ff85975d0931708473ce5bb95fd461e4cf2965416", kill_on_drop: false }`
[INFO] [stdout] 6c1581ae3f4101f316c93c1ff85975d0931708473ce5bb95fd461e4cf2965416