[INFO] fetching crate ptail 0.2.2...
[INFO] building ptail-0.2.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate ptail 0.2.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ptail 0.2.2
[INFO] finished tweaking crates.io crate ptail 0.2.2
[INFO] tweaked toml for crates.io crate ptail 0.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ptail 0.2.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ptail 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d284f975b67514d8ba9c106754d14b4b21f813e99d5ee22ada1ddb7c9ba67fce
[INFO] running `Command { std: "docker" "start" "-a" "d284f975b67514d8ba9c106754d14b4b21f813e99d5ee22ada1ddb7c9ba67fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d284f975b67514d8ba9c106754d14b4b21f813e99d5ee22ada1ddb7c9ba67fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d284f975b67514d8ba9c106754d14b4b21f813e99d5ee22ada1ddb7c9ba67fce", kill_on_drop: false }`
[INFO] [stdout] d284f975b67514d8ba9c106754d14b4b21f813e99d5ee22ada1ddb7c9ba67fce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f65a24cbec29441a7b660b61ad63da1f755ff609f6a0792ad0b9a28b9103c669
[INFO] running `Command { std: "docker" "start" "-a" "f65a24cbec29441a7b660b61ad63da1f755ff609f6a0792ad0b9a28b9103c669", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling once_cell v1.2.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling shared_child v0.3.4
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling os_pipe v0.9.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling duct v0.13.3
[INFO] [stderr]    Compiling console v0.9.1
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling synstructure v0.12.2
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling structopt v0.3.4
[INFO] [stderr]    Compiling ptail v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.01s
[INFO] running `Command { std: "docker" "inspect" "f65a24cbec29441a7b660b61ad63da1f755ff609f6a0792ad0b9a28b9103c669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f65a24cbec29441a7b660b61ad63da1f755ff609f6a0792ad0b9a28b9103c669", kill_on_drop: false }`
[INFO] [stdout] f65a24cbec29441a7b660b61ad63da1f755ff609f6a0792ad0b9a28b9103c669
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 650953d46be7584ea2d4e7c1c7e0d2eecab04f6e09b9e04d0d4ac2b3a7c1e6ff
[INFO] running `Command { std: "docker" "start" "-a" "650953d46be7584ea2d4e7c1c7e0d2eecab04f6e09b9e04d0d4ac2b3a7c1e6ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling ptail v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "650953d46be7584ea2d4e7c1c7e0d2eecab04f6e09b9e04d0d4ac2b3a7c1e6ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "650953d46be7584ea2d4e7c1c7e0d2eecab04f6e09b9e04d0d4ac2b3a7c1e6ff", kill_on_drop: false }`
[INFO] [stdout] 650953d46be7584ea2d4e7c1c7e0d2eecab04f6e09b9e04d0d4ac2b3a7c1e6ff