[INFO] fetching crate mm_subscribe 0.1.1...
[INFO] testing mm_subscribe-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mm_subscribe 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mm_subscribe 0.1.1 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 mm_subscribe 0.1.1
[INFO] finished tweaking crates.io crate mm_subscribe 0.1.1
[INFO] tweaked toml for crates.io crate mm_subscribe 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mm_subscribe 0.1.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 0153b6b71c519fb312ec3399d9bfd693d81a19b364826eadc72e0a319ef9ab5d
[INFO] running `Command { std: "docker" "start" "-a" "0153b6b71c519fb312ec3399d9bfd693d81a19b364826eadc72e0a319ef9ab5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0153b6b71c519fb312ec3399d9bfd693d81a19b364826eadc72e0a319ef9ab5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0153b6b71c519fb312ec3399d9bfd693d81a19b364826eadc72e0a319ef9ab5d", kill_on_drop: false }`
[INFO] [stdout] 0153b6b71c519fb312ec3399d9bfd693d81a19b364826eadc72e0a319ef9ab5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 493b6911f423534213016e39d33f777df7eeff322fd21af6784f2e33e809cadf
[INFO] running `Command { std: "docker" "start" "-a" "493b6911f423534213016e39d33f777df7eeff322fd21af6784f2e33e809cadf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling minimonkey v0.1.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling mm_subscribe v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.10s
[INFO] running `Command { std: "docker" "inspect" "493b6911f423534213016e39d33f777df7eeff322fd21af6784f2e33e809cadf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493b6911f423534213016e39d33f777df7eeff322fd21af6784f2e33e809cadf", kill_on_drop: false }`
[INFO] [stdout] 493b6911f423534213016e39d33f777df7eeff322fd21af6784f2e33e809cadf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] fca0537bb72d30507c4b132312c0f2a50882a8f609ee883b4572fbee82ce3144
[INFO] running `Command { std: "docker" "start" "-a" "fca0537bb72d30507c4b132312c0f2a50882a8f609ee883b4572fbee82ce3144", kill_on_drop: false }`
[INFO] [stderr]    Compiling mm_subscribe v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "fca0537bb72d30507c4b132312c0f2a50882a8f609ee883b4572fbee82ce3144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca0537bb72d30507c4b132312c0f2a50882a8f609ee883b4572fbee82ce3144", kill_on_drop: false }`
[INFO] [stdout] fca0537bb72d30507c4b132312c0f2a50882a8f609ee883b4572fbee82ce3144
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] bee12dcfda0944fcbca91b80f35904a7581f3baa35307b1102598fe7a71bc4ba
[INFO] running `Command { std: "docker" "start" "-a" "bee12dcfda0944fcbca91b80f35904a7581f3baa35307b1102598fe7a71bc4ba", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mm_subscribe-7f46f345d45b7e8b)
[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" "bee12dcfda0944fcbca91b80f35904a7581f3baa35307b1102598fe7a71bc4ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bee12dcfda0944fcbca91b80f35904a7581f3baa35307b1102598fe7a71bc4ba", kill_on_drop: false }`
[INFO] [stdout] bee12dcfda0944fcbca91b80f35904a7581f3baa35307b1102598fe7a71bc4ba