[INFO] cloning repository https://github.com/BooleanCat/mill
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BooleanCat/mill" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBooleanCat%2Fmill", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBooleanCat%2Fmill'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97564eb562a728bc3072a07a4b0658b66d4d1d04
[INFO] testing BooleanCat/mill against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBooleanCat%2Fmill" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BooleanCat/mill 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 git repo https://github.com/BooleanCat/mill
[INFO] finished tweaking git repo https://github.com/BooleanCat/mill
[INFO] tweaked toml for git repo https://github.com/BooleanCat/mill written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/BooleanCat/mill 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-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] [stdout] c11e94719523e27c9fb1c840a185e9d99d9a694fd353385ef8f89a68b4fe0b6b
[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" "c11e94719523e27c9fb1c840a185e9d99d9a694fd353385ef8f89a68b4fe0b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c11e94719523e27c9fb1c840a185e9d99d9a694fd353385ef8f89a68b4fe0b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c11e94719523e27c9fb1c840a185e9d99d9a694fd353385ef8f89a68b4fe0b6b", kill_on_drop: false }`
[INFO] [stdout] c11e94719523e27c9fb1c840a185e9d99d9a694fd353385ef8f89a68b4fe0b6b
[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] b00e5011a0c86fe7311b3a5dcf245cf9923f346b18c5d17badfa2b1963d498fa
[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" "b00e5011a0c86fe7311b3a5dcf245cf9923f346b18c5d17badfa2b1963d498fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.65
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling mill_core v0.1.0 (/opt/rustwide/workdir/mill_core)
[INFO] [stderr]    Compiling mill v0.1.0 (/opt/rustwide/workdir/mill)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.51s
[INFO] running `Command { std: "docker" "inspect" "b00e5011a0c86fe7311b3a5dcf245cf9923f346b18c5d17badfa2b1963d498fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b00e5011a0c86fe7311b3a5dcf245cf9923f346b18c5d17badfa2b1963d498fa", kill_on_drop: false }`
[INFO] [stdout] b00e5011a0c86fe7311b3a5dcf245cf9923f346b18c5d17badfa2b1963d498fa
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c2fae05ecad22602bac74d77ab6a496391d01aec662f60383b7edbbb5c757ffa
[INFO] running `Command { std: "docker" "start" "-a" "c2fae05ecad22602bac74d77ab6a496391d01aec662f60383b7edbbb5c757ffa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling mill_core v0.1.0 (/opt/rustwide/workdir/mill_core)
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling serial_test v0.5.1
[INFO] [stderr]    Compiling mill v0.1.0 (/opt/rustwide/workdir/mill)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.43s
[INFO] running `Command { std: "docker" "inspect" "c2fae05ecad22602bac74d77ab6a496391d01aec662f60383b7edbbb5c757ffa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fae05ecad22602bac74d77ab6a496391d01aec662f60383b7edbbb5c757ffa", kill_on_drop: false }`
[INFO] [stdout] c2fae05ecad22602bac74d77ab6a496391d01aec662f60383b7edbbb5c757ffa
[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] 2f2c363ab19e9c7b588fc8db60bbb473c2647ea1ab9d7da112e69766b542ff4d
[INFO] running `Command { std: "docker" "start" "-a" "2f2c363ab19e9c7b588fc8db60bbb473c2647ea1ab9d7da112e69766b542ff4d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mill-6350178c9db2d0b2)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test config::tests::config_load_loads_defaults ... ok
[INFO] [stdout] test config::tests::config_from_file_reads_values_with_defaults ... ok
[INFO] [stdout] test config::tests::config_load_loads_from_home ... ok
[INFO] [stdout] test config::tests::config_from_file_reads_valus ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mill_core-50bdd7a5dbc1e304)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test config::process::capabilities::tests::deserialize_defaults ... ok
[INFO] [stdout] test config::mount::tests::serialize ... ok
[INFO] [stdout] test config::process::capabilities::tests::serialize ... ok
[INFO] [stdout] test config::process::capabilities::tests::serialize_defaults ... ok
[INFO] [stdout] test config::mount::tests::serialize_defaults ... ok
[INFO] [stdout] test config::process::rlimit::tests::deserialize ... ok
[INFO] [stdout] test config::process::capabilities::tests::deserialize ... ok
[INFO] [stdout] test config::process::tests::deserialize ... ok
[INFO] [stdout] test config::process::console_size::tests::serialize ... ok
[INFO] [stdout] test config::process::tests::deserialize_defaults ... ok
[INFO] [stdout] test config::process::console_size::tests::deserialize ... ok
[INFO] [stdout] test config::mount::tests::deserialize_defaults ... ok
[INFO] [stdout] test config::mount::tests::deserialize ... ok
[INFO] [stdout] test config::tests::deserialize_defaults ... ok
[INFO] [stdout] test config::tests::serialize ... ok
[INFO] [stdout] test config::process::rlimit::tests::serialize ... ok
[INFO] [stdout] test config::root::tests::deserialize ... ok
[INFO] [stdout] test config::tests::serialize_defaults ... ok
[INFO] [stdout] test config::process::tests::serialize ... ok
[INFO] [stdout] test config::root::tests::deserialize_defaults ... ok
[INFO] [stdout] test config::process::tests::serialize_defaults ... ok
[INFO] [stdout] test config::root::tests::serialize_defaults ... ok
[INFO] [stdout] test config::root::tests::serialize ... ok
[INFO] [stdout] test config::tests::deserialize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mill_core
[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" "2f2c363ab19e9c7b588fc8db60bbb473c2647ea1ab9d7da112e69766b542ff4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f2c363ab19e9c7b588fc8db60bbb473c2647ea1ab9d7da112e69766b542ff4d", kill_on_drop: false }`
[INFO] [stdout] 2f2c363ab19e9c7b588fc8db60bbb473c2647ea1ab9d7da112e69766b542ff4d