[INFO] fetching crate ptail 0.2.2...
[INFO] checking ptail-0.2.2 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate ptail 0.2.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ptail 0.2.2 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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/source/Cargo.toml
[INFO] crate crates.io crate ptail 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0101671a536c9bb49f493f8bb453b8e5f2697da104dd62d71487ee4f12305a9c
[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" "0101671a536c9bb49f493f8bb453b8e5f2697da104dd62d71487ee4f12305a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0101671a536c9bb49f493f8bb453b8e5f2697da104dd62d71487ee4f12305a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0101671a536c9bb49f493f8bb453b8e5f2697da104dd62d71487ee4f12305a9c", kill_on_drop: false }`
[INFO] [stdout] 0101671a536c9bb49f493f8bb453b8e5f2697da104dd62d71487ee4f12305a9c
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28a05c4b5469e7afe82659021b84ee8c34f109c6883e39c35fcfea4b7bca7e5b
[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" "28a05c4b5469e7afe82659021b84ee8c34f109c6883e39c35fcfea4b7bca7e5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking os_pipe v0.9.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking duct v0.13.3
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling synstructure v0.12.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking structopt v0.3.4
[INFO] [stderr]     Checking ptail v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.41s
[INFO] running `Command { std: "docker" "inspect" "28a05c4b5469e7afe82659021b84ee8c34f109c6883e39c35fcfea4b7bca7e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a05c4b5469e7afe82659021b84ee8c34f109c6883e39c35fcfea4b7bca7e5b", kill_on_drop: false }`
[INFO] [stdout] 28a05c4b5469e7afe82659021b84ee8c34f109c6883e39c35fcfea4b7bca7e5b