[INFO] fetching crate allo-isolate 0.1.8-beta...
[INFO] testing allo-isolate-0.1.8-beta against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate allo-isolate 0.1.8-beta into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate allo-isolate 0.1.8-beta 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] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking crates.io crate allo-isolate 0.1.8-beta
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate allo-isolate 0.1.8-beta
[INFO] tweaked toml for crates.io crate allo-isolate 0.1.8-beta written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate allo-isolate 0.1.8-beta already has a lockfile, it will not be regenerated
[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]     Blocking waiting for file lock on package cache
[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] 7d6b80bd595e395f7fa8c0c46f6fa228f0c4798f44efb268daef66c7aece8e00
[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" "7d6b80bd595e395f7fa8c0c46f6fa228f0c4798f44efb268daef66c7aece8e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d6b80bd595e395f7fa8c0c46f6fa228f0c4798f44efb268daef66c7aece8e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6b80bd595e395f7fa8c0c46f6fa228f0c4798f44efb268daef66c7aece8e00", kill_on_drop: false }`
[INFO] [stdout] 7d6b80bd595e395f7fa8c0c46f6fa228f0c4798f44efb268daef66c7aece8e00
[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] [stdout] 88e4b71897d504a92559b035deee36e7796838abd12f99bdf68cde542072342e
[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" "88e4b71897d504a92559b035deee36e7796838abd12f99bdf68cde542072342e", kill_on_drop: false }`
[INFO] [stderr]    Compiling allo-isolate v0.1.8-beta (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "88e4b71897d504a92559b035deee36e7796838abd12f99bdf68cde542072342e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88e4b71897d504a92559b035deee36e7796838abd12f99bdf68cde542072342e", kill_on_drop: false }`
[INFO] [stdout] 88e4b71897d504a92559b035deee36e7796838abd12f99bdf68cde542072342e
[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] 70512b6f30f3079f55b93fca2fa54684e697d68612d8d661572d706741188044
[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" "70512b6f30f3079f55b93fca2fa54684e697d68612d8d661572d706741188044", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastrand v1.3.3
[INFO] [stderr]    Compiling allo-isolate v0.1.8-beta (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "70512b6f30f3079f55b93fca2fa54684e697d68612d8d661572d706741188044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70512b6f30f3079f55b93fca2fa54684e697d68612d8d661572d706741188044", kill_on_drop: false }`
[INFO] [stdout] 70512b6f30f3079f55b93fca2fa54684e697d68612d8d661572d706741188044
[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] ce6fd613a1939b88a197c3fa4737ebe631686b8e6e1eb34651d84661e776a67a
[INFO] running `Command { std: "docker" "start" "-a" "ce6fd613a1939b88a197c3fa4737ebe631686b8e6e1eb34651d84661e776a67a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/allo_isolate-dece89b9faab4f28
[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] [stderr]    Doc-tests allo-isolate
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Isolate::task (line 144) ... ignored
[INFO] [stdout] test src/lib.rs - Isolate::post (line 109) ... ok
[INFO] [stdout] test src/lib.rs - Isolate::new (line 92) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce6fd613a1939b88a197c3fa4737ebe631686b8e6e1eb34651d84661e776a67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6fd613a1939b88a197c3fa4737ebe631686b8e6e1eb34651d84661e776a67a", kill_on_drop: false }`
[INFO] [stdout] ce6fd613a1939b88a197c3fa4737ebe631686b8e6e1eb34651d84661e776a67a