[INFO] fetching crate wasmer-experimental-io-devices-lib 0.1.1...
[INFO] testing wasmer-experimental-io-devices-lib-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate wasmer-experimental-io-devices-lib 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate wasmer-experimental-io-devices-lib 0.1.1 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 wasmer-experimental-io-devices-lib 0.1.1
[INFO] finished tweaking crates.io crate wasmer-experimental-io-devices-lib 0.1.1
[INFO] tweaked toml for crates.io crate wasmer-experimental-io-devices-lib 0.1.1 written to /workspace/builds/worker-13/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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 86480febb9e3a619766e04c0da1e5dc83615b924aae5b5a27e9472aa6f294c9a
[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" "86480febb9e3a619766e04c0da1e5dc83615b924aae5b5a27e9472aa6f294c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86480febb9e3a619766e04c0da1e5dc83615b924aae5b5a27e9472aa6f294c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86480febb9e3a619766e04c0da1e5dc83615b924aae5b5a27e9472aa6f294c9a", kill_on_drop: false }`
[INFO] [stdout] 86480febb9e3a619766e04c0da1e5dc83615b924aae5b5a27e9472aa6f294c9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f14c5a76c12636459eee6b59b5f26ada3cb02803ab239017a230244d2b3e1b24
[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" "f14c5a76c12636459eee6b59b5f26ada3cb02803ab239017a230244d2b3e1b24", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasmer-experimental-io-devices-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "f14c5a76c12636459eee6b59b5f26ada3cb02803ab239017a230244d2b3e1b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f14c5a76c12636459eee6b59b5f26ada3cb02803ab239017a230244d2b3e1b24", kill_on_drop: false }`
[INFO] [stdout] f14c5a76c12636459eee6b59b5f26ada3cb02803ab239017a230244d2b3e1b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 8fa0cee763b8b90b2786e615e0d5699c492a8d9e31dfdc646c3db3224776beec
[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" "8fa0cee763b8b90b2786e615e0d5699c492a8d9e31dfdc646c3db3224776beec", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasmer-experimental-io-devices-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "8fa0cee763b8b90b2786e615e0d5699c492a8d9e31dfdc646c3db3224776beec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa0cee763b8b90b2786e615e0d5699c492a8d9e31dfdc646c3db3224776beec", kill_on_drop: false }`
[INFO] [stdout] 8fa0cee763b8b90b2786e615e0d5699c492a8d9e31dfdc646c3db3224776beec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 05017f71fa10fd13d5899176673f2c1c75d6fe66989bf9b8c78414503081576e
[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" "05017f71fa10fd13d5899176673f2c1c75d6fe66989bf9b8c78414503081576e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wasmer_experimental_io_devices_lib-d0a95113031d9c85
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests wasmer-experimental-io-devices-lib
[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 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" "05017f71fa10fd13d5899176673f2c1c75d6fe66989bf9b8c78414503081576e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05017f71fa10fd13d5899176673f2c1c75d6fe66989bf9b8c78414503081576e", kill_on_drop: false }`
[INFO] [stdout] 05017f71fa10fd13d5899176673f2c1c75d6fe66989bf9b8c78414503081576e