[INFO] fetching crate elfo 0.1.20...
[INFO] testing elfo-0.1.20 against 1.55.0 for beta-1.56-1
[INFO] extracting crate elfo 0.1.20 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate elfo 0.1.20 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elfo 0.1.20
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate elfo 0.1.20
[INFO] tweaked toml for crates.io crate elfo 0.1.20 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate elfo 0.1.20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-1/source/examples/test.rs
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] 8a0e51ec99d08f18981d1e881fab0e6fe7c94639061c2e8e05ccd3aa5a861e0e
[INFO] running `Command { std: "docker" "start" "-a" "8a0e51ec99d08f18981d1e881fab0e6fe7c94639061c2e8e05ccd3aa5a861e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a0e51ec99d08f18981d1e881fab0e6fe7c94639061c2e8e05ccd3aa5a861e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a0e51ec99d08f18981d1e881fab0e6fe7c94639061c2e8e05ccd3aa5a861e0e", kill_on_drop: false }`
[INFO] [stdout] 8a0e51ec99d08f18981d1e881fab0e6fe7c94639061c2e8e05ccd3aa5a861e0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7df7ee6e43df9b1acd7523a93c366c86e74b30dca133a6d7767e7a1e9941ec3f
[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" "7df7ee6e43df9b1acd7523a93c366c86e74b30dca133a6d7767e7a1e9941ec3f", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/test.rs
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling elfo-core v0.1.16
[INFO] [stderr]    Compiling elfo v0.1.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.51s
[INFO] running `Command { std: "docker" "inspect" "7df7ee6e43df9b1acd7523a93c366c86e74b30dca133a6d7767e7a1e9941ec3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df7ee6e43df9b1acd7523a93c366c86e74b30dca133a6d7767e7a1e9941ec3f", kill_on_drop: false }`
[INFO] [stdout] 7df7ee6e43df9b1acd7523a93c366c86e74b30dca133a6d7767e7a1e9941ec3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50932a0059517d2ad1d7a4b840b1e0b3e05c3f831c21cffa99e162c7f3153fd9
[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" "50932a0059517d2ad1d7a4b840b1e0b3e05c3f831c21cffa99e162c7f3153fd9", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/test.rs
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tracing-subscriber v0.2.20
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling elfo-configurer v0.1.6
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling elfo-test v0.1.13
[INFO] [stderr]    Compiling elfo v0.1.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.06s
[INFO] running `Command { std: "docker" "inspect" "50932a0059517d2ad1d7a4b840b1e0b3e05c3f831c21cffa99e162c7f3153fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50932a0059517d2ad1d7a4b840b1e0b3e05c3f831c21cffa99e162c7f3153fd9", kill_on_drop: false }`
[INFO] [stdout] 50932a0059517d2ad1d7a4b840b1e0b3e05c3f831c21cffa99e162c7f3153fd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] b8e6a6bac00e61b509d9220e6eeb1435a6d77354a788145aba72397009e97dbe
[INFO] running `Command { std: "docker" "start" "-a" "b8e6a6bac00e61b509d9220e6eeb1435a6d77354a788145aba72397009e97dbe", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/test.rs
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/elfo-22cf5d18ac07568d)
[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]      Running tests/message_macro.rs (/opt/rustwide/target/debug/deps/message_macro-ce95aea7c116eb9d)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test name ... ok
[INFO] [stdout] test protocol ... ok
[INFO] [stderr]      Running tests/restarting.rs (/opt/rustwide/target/debug/deps/restarting-9929f367aa8237fa)
[INFO] [stdout] test transparent ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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] [stderr]      Running tests/streams.rs (/opt/rustwide/target/debug/deps/streams-a633f130e8bc6ba3)
[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 elfo
[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" "b8e6a6bac00e61b509d9220e6eeb1435a6d77354a788145aba72397009e97dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e6a6bac00e61b509d9220e6eeb1435a6d77354a788145aba72397009e97dbe", kill_on_drop: false }`
[INFO] [stdout] b8e6a6bac00e61b509d9220e6eeb1435a6d77354a788145aba72397009e97dbe