[INFO] fetching crate buffertk 0.8.0...
[INFO] checking buffertk-0.8.0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate buffertk 0.8.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate buffertk 0.8.0 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buffertk 0.8.0
[INFO] finished tweaking crates.io crate buffertk 0.8.0
[INFO] tweaked toml for crates.io crate buffertk 0.8.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate buffertk 0.8.0 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrrg v0.4.0
[INFO] [stderr]   Downloaded statslicer v0.4.0
[INFO] [stderr]   Downloaded guacamole v0.8.0
[INFO] [stderr]   Downloaded derive_util v0.4.0
[INFO] [stderr]   Downloaded arrrg_derive v0.4.0
[INFO] [stderr]   Downloaded sig_fig_histogram v0.3.0
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11c80a1d9fe57c33ffdb63de42c42d51bf313e7e06fac8c9052171bc3bc73821
[INFO] running `Command { std: "docker" "start" "-a" "11c80a1d9fe57c33ffdb63de42c42d51bf313e7e06fac8c9052171bc3bc73821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11c80a1d9fe57c33ffdb63de42c42d51bf313e7e06fac8c9052171bc3bc73821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c80a1d9fe57c33ffdb63de42c42d51bf313e7e06fac8c9052171bc3bc73821", kill_on_drop: false }`
[INFO] [stdout] 11c80a1d9fe57c33ffdb63de42c42d51bf313e7e06fac8c9052171bc3bc73821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80efa40bfb8b0f8af616349e122e62e88ca4459e67abbb467c7bc75374d91058
[INFO] running `Command { std: "docker" "start" "-a" "80efa40bfb8b0f8af616349e122e62e88ca4459e67abbb467c7bc75374d91058", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking sig_fig_histogram v0.3.0
[INFO] [stderr]     Checking buffertk v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling derive_util v0.4.0
[INFO] [stderr]    Compiling arrrg_derive v0.4.0
[INFO] [stderr]     Checking arrrg v0.4.0
[INFO] [stderr]     Checking guacamole v0.8.0
[INFO] [stderr]     Checking statslicer v0.4.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "80efa40bfb8b0f8af616349e122e62e88ca4459e67abbb467c7bc75374d91058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80efa40bfb8b0f8af616349e122e62e88ca4459e67abbb467c7bc75374d91058", kill_on_drop: false }`
[INFO] [stdout] 80efa40bfb8b0f8af616349e122e62e88ca4459e67abbb467c7bc75374d91058