[INFO] fetching crate rustrc 0.14.0...
[INFO] building rustrc-0.14.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rustrc 0.14.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rustrc 0.14.0
[INFO] finished tweaking crates.io crate rustrc 0.14.0
[INFO] tweaked toml for crates.io crate rustrc 0.14.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustrc 0.14.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustrc 0.14.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrrg_derive v0.8.0
[INFO] [stderr]   Downloaded biometrics v0.12.0
[INFO] [stderr]   Downloaded utf8path v0.9.0
[INFO] [stderr]   Downloaded one_two_eight v0.10.0
[INFO] [stderr]   Downloaded arrrg v0.8.0
[INFO] [stderr]   Downloaded derive_util v0.5.0
[INFO] [stderr]   Downloaded minimal_signals v0.5.0
[INFO] [stderr]   Downloaded tatl v0.13.0
[INFO] [stderr]   Downloaded prototk_derive v0.13.0
[INFO] [stderr]   Downloaded shvar v0.8.0
[INFO] [stderr]   Downloaded sig_fig_histogram v0.6.0
[INFO] [stderr]   Downloaded buffertk v0.13.0
[INFO] [stderr]   Downloaded prototk v0.13.0
[INFO] [stderr]   Downloaded indicio v0.12.0
[INFO] [stderr]   Downloaded rc_conf v0.13.0
[INFO] [stderr]   Downloaded zerror v0.8.0
[INFO] [stderr]   Downloaded unix_sock v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ad41a0c1e25a873d5da35268ef530687836fc8c089ae3688031f0423089a338
[INFO] running `Command { std: "docker" "start" "-a" "0ad41a0c1e25a873d5da35268ef530687836fc8c089ae3688031f0423089a338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ad41a0c1e25a873d5da35268ef530687836fc8c089ae3688031f0423089a338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad41a0c1e25a873d5da35268ef530687836fc8c089ae3688031f0423089a338", kill_on_drop: false }`
[INFO] [stdout] 0ad41a0c1e25a873d5da35268ef530687836fc8c089ae3688031f0423089a338
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2706fffc0bf3ad8c064f6fa0be9f22822eed142be0a7911f96e86bb078b86186
[INFO] running `Command { std: "docker" "start" "-a" "2706fffc0bf3ad8c064f6fa0be9f22822eed142be0a7911f96e86bb078b86186", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling buffertk v0.13.0
[INFO] [stderr]    Compiling zerror v0.8.0
[INFO] [stderr]    Compiling sig_fig_histogram v0.6.0
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling utf8path v0.9.0
[INFO] [stderr]    Compiling shvar v0.8.0
[INFO] [stderr]    Compiling minimal_signals v0.5.0
[INFO] [stderr]    Compiling biometrics v0.12.0
[INFO] [stderr]    Compiling getopts v0.2.23
[INFO] [stderr]    Compiling unix_sock v0.9.0
[INFO] [stderr]    Compiling derive_util v0.5.0
[INFO] [stderr]    Compiling prototk_derive v0.13.0
[INFO] [stderr]    Compiling arrrg_derive v0.8.0
[INFO] [stderr]    Compiling arrrg v0.8.0
[INFO] [stderr]    Compiling prototk v0.13.0
[INFO] [stderr]    Compiling rc_conf v0.13.0
[INFO] [stderr]    Compiling one_two_eight v0.10.0
[INFO] [stderr]    Compiling tatl v0.13.0
[INFO] [stderr]    Compiling indicio v0.12.0
[INFO] [stderr]    Compiling rustrc v0.14.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.27s
[INFO] running `Command { std: "docker" "inspect" "2706fffc0bf3ad8c064f6fa0be9f22822eed142be0a7911f96e86bb078b86186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2706fffc0bf3ad8c064f6fa0be9f22822eed142be0a7911f96e86bb078b86186", kill_on_drop: false }`
[INFO] [stdout] 2706fffc0bf3ad8c064f6fa0be9f22822eed142be0a7911f96e86bb078b86186
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae64a8378624489aed8eb81837dfe9aefcdb53c0372de20eb471ae476c03cf72
[INFO] running `Command { std: "docker" "start" "-a" "ae64a8378624489aed8eb81837dfe9aefcdb53c0372de20eb471ae476c03cf72", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustrc v0.14.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "ae64a8378624489aed8eb81837dfe9aefcdb53c0372de20eb471ae476c03cf72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae64a8378624489aed8eb81837dfe9aefcdb53c0372de20eb471ae476c03cf72", kill_on_drop: false }`
[INFO] [stdout] ae64a8378624489aed8eb81837dfe9aefcdb53c0372de20eb471ae476c03cf72