[INFO] fetching crate rfs 1.0.0...
[INFO] checking rfs-1.0.0 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate rfs 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rfs 1.0.0
[INFO] finished tweaking crates.io crate rfs 1.0.0
[INFO] tweaked toml for crates.io crate rfs 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rfs 1.0.0 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rfs 1.0.0 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot v0.12.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.1
[INFO] [stderr]   Downloaded tokio v1.17.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.32.0
[INFO] [stderr]   Downloaded mio v0.8.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.32.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.32.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.32.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.32.0
[INFO] [stderr]   Downloaded windows-sys v0.32.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62f3233c456ce3ca967df3c8509812e7b9498f000a341567c77e6399473b36ad
[INFO] running `Command { std: "docker" "start" "-a" "62f3233c456ce3ca967df3c8509812e7b9498f000a341567c77e6399473b36ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62f3233c456ce3ca967df3c8509812e7b9498f000a341567c77e6399473b36ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62f3233c456ce3ca967df3c8509812e7b9498f000a341567c77e6399473b36ad", kill_on_drop: false }`
[INFO] [stdout] 62f3233c456ce3ca967df3c8509812e7b9498f000a341567c77e6399473b36ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aee1bb0b033619331c722f5e2a9c43186347aa3b8fbb6f7621a5f6fff44d634e
[INFO] running `Command { std: "docker" "start" "-a" "aee1bb0b033619331c722f5e2a9c43186347aa3b8fbb6f7621a5f6fff44d634e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking rfs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.67s
[INFO] running `Command { std: "docker" "inspect" "aee1bb0b033619331c722f5e2a9c43186347aa3b8fbb6f7621a5f6fff44d634e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee1bb0b033619331c722f5e2a9c43186347aa3b8fbb6f7621a5f6fff44d634e", kill_on_drop: false }`
[INFO] [stdout] aee1bb0b033619331c722f5e2a9c43186347aa3b8fbb6f7621a5f6fff44d634e