[INFO] fetching crate miter 0.5.0...
[INFO] testing miter-0.5.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate miter 0.5.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate miter 0.5.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate miter 0.5.0
[INFO] finished tweaking crates.io crate miter 0.5.0
[INFO] tweaked toml for crates.io crate miter 0.5.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate miter 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcd v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bfa7a0abda7a6b6c838efa33c302f1bce8afbdf3e7ad1c93e79b6e232fca73d
[INFO] running `Command { std: "docker" "start" "-a" "7bfa7a0abda7a6b6c838efa33c302f1bce8afbdf3e7ad1c93e79b6e232fca73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bfa7a0abda7a6b6c838efa33c302f1bce8afbdf3e7ad1c93e79b6e232fca73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bfa7a0abda7a6b6c838efa33c302f1bce8afbdf3e7ad1c93e79b6e232fca73d", kill_on_drop: false }`
[INFO] [stdout] 7bfa7a0abda7a6b6c838efa33c302f1bce8afbdf3e7ad1c93e79b6e232fca73d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eca0ac18eb2bd8277dc055e160cff90c78c12e67b9cd3df51942793ba9e23295
[INFO] running `Command { std: "docker" "start" "-a" "eca0ac18eb2bd8277dc055e160cff90c78c12e67b9cd3df51942793ba9e23295", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling gcd v2.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling miter v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.79s
[INFO] running `Command { std: "docker" "inspect" "eca0ac18eb2bd8277dc055e160cff90c78c12e67b9cd3df51942793ba9e23295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca0ac18eb2bd8277dc055e160cff90c78c12e67b9cd3df51942793ba9e23295", kill_on_drop: false }`
[INFO] [stdout] eca0ac18eb2bd8277dc055e160cff90c78c12e67b9cd3df51942793ba9e23295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2df1465916da463c896b3703012129bf978146bf2d77c414b74fc8031d4a28ba
[INFO] running `Command { std: "docker" "start" "-a" "2df1465916da463c896b3703012129bf978146bf2d77c414b74fc8031d4a28ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling miter v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "2df1465916da463c896b3703012129bf978146bf2d77c414b74fc8031d4a28ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df1465916da463c896b3703012129bf978146bf2d77c414b74fc8031d4a28ba", kill_on_drop: false }`
[INFO] [stdout] 2df1465916da463c896b3703012129bf978146bf2d77c414b74fc8031d4a28ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b8f7f6f56985b333436665ece77130e6176ff8d1f65c16b691ebf66715a474cf
[INFO] running `Command { std: "docker" "start" "-a" "b8f7f6f56985b333436665ece77130e6176ff8d1f65c16b691ebf66715a474cf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/miter-17329c94e862429c)
[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" "b8f7f6f56985b333436665ece77130e6176ff8d1f65c16b691ebf66715a474cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f7f6f56985b333436665ece77130e6176ff8d1f65c16b691ebf66715a474cf", kill_on_drop: false }`
[INFO] [stdout] b8f7f6f56985b333436665ece77130e6176ff8d1f65c16b691ebf66715a474cf