[INFO] fetching crate buffertk 0.8.0...
[INFO] checking buffertk-0.8.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate buffertk 0.8.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate buffertk 0.8.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-3-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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 sig_fig_histogram v0.3.0
[INFO] [stderr]   Downloaded arrrg_derive v0.4.0
[INFO] [stderr]   Downloaded guacamole v0.8.0
[INFO] [stderr]   Downloaded derive_util v0.4.0
[INFO] [stderr]   Downloaded statslicer v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0df8f987acd244e90034c6b4129e5d11c4d1491a63862ee5a3ea3cc20e583a62
[INFO] running `Command { std: "docker" "start" "-a" "0df8f987acd244e90034c6b4129e5d11c4d1491a63862ee5a3ea3cc20e583a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0df8f987acd244e90034c6b4129e5d11c4d1491a63862ee5a3ea3cc20e583a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df8f987acd244e90034c6b4129e5d11c4d1491a63862ee5a3ea3cc20e583a62", kill_on_drop: false }`
[INFO] [stdout] 0df8f987acd244e90034c6b4129e5d11c4d1491a63862ee5a3ea3cc20e583a62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7efe30230b4bd50a855e80f9b704f0f36dc2a384a8d95d0ea6cecff5d3ce4a0d
[INFO] running `Command { std: "docker" "start" "-a" "7efe30230b4bd50a855e80f9b704f0f36dc2a384a8d95d0ea6cecff5d3ce4a0d", kill_on_drop: false }`
[INFO] [stderr]     Checking sig_fig_histogram v0.3.0
[INFO] [stderr]     Checking buffertk v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling syn v1.0.109
[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 6.99s
[INFO] running `Command { std: "docker" "inspect" "7efe30230b4bd50a855e80f9b704f0f36dc2a384a8d95d0ea6cecff5d3ce4a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7efe30230b4bd50a855e80f9b704f0f36dc2a384a8d95d0ea6cecff5d3ce4a0d", kill_on_drop: false }`
[INFO] [stdout] 7efe30230b4bd50a855e80f9b704f0f36dc2a384a8d95d0ea6cecff5d3ce4a0d