[INFO] fetching crate tcp-lib 0.1.0...
[INFO] checking tcp-lib-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate tcp-lib 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tcp-lib 0.1.0
[INFO] finished tweaking crates.io crate tcp-lib 0.1.0
[INFO] tweaked toml for crates.io crate tcp-lib 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tcp-lib 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tcp-lib 0.1.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2c4063ebdc2c156ba2412ce4d3e33b46d33ec921232980f6b1e282c42f0aa91
[INFO] running `Command { std: "docker" "start" "-a" "a2c4063ebdc2c156ba2412ce4d3e33b46d33ec921232980f6b1e282c42f0aa91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2c4063ebdc2c156ba2412ce4d3e33b46d33ec921232980f6b1e282c42f0aa91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2c4063ebdc2c156ba2412ce4d3e33b46d33ec921232980f6b1e282c42f0aa91", kill_on_drop: false }`
[INFO] [stdout] a2c4063ebdc2c156ba2412ce4d3e33b46d33ec921232980f6b1e282c42f0aa91
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aca0599e52ff839f8c98f5da0bc86a8b38362d10e283947217ff24d1f4a2fdba
[INFO] running `Command { std: "docker" "start" "-a" "aca0599e52ff839f8c98f5da0bc86a8b38362d10e283947217ff24d1f4a2fdba", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking tcp-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.19s
[INFO] running `Command { std: "docker" "inspect" "aca0599e52ff839f8c98f5da0bc86a8b38362d10e283947217ff24d1f4a2fdba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aca0599e52ff839f8c98f5da0bc86a8b38362d10e283947217ff24d1f4a2fdba", kill_on_drop: false }`
[INFO] [stdout] aca0599e52ff839f8c98f5da0bc86a8b38362d10e283947217ff24d1f4a2fdba