[INFO] fetching crate muxit 0.2.0...
[INFO] checking muxit-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate muxit 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate muxit 0.2.0
[INFO] finished tweaking crates.io crate muxit 0.2.0
[INFO] tweaked toml for crates.io crate muxit 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate muxit 0.2.0 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 muxit 0.2.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.36
[INFO] [stderr]   Downloaded tmux_interface v0.3.1
[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] 98b5c7f93c5d628c80955de03669913189551eb238cc24dfafa9e2d862b984fb
[INFO] running `Command { std: "docker" "start" "-a" "98b5c7f93c5d628c80955de03669913189551eb238cc24dfafa9e2d862b984fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98b5c7f93c5d628c80955de03669913189551eb238cc24dfafa9e2d862b984fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b5c7f93c5d628c80955de03669913189551eb238cc24dfafa9e2d862b984fb", kill_on_drop: false }`
[INFO] [stdout] 98b5c7f93c5d628c80955de03669913189551eb238cc24dfafa9e2d862b984fb
[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] 994b2ae34c202c4f9af411bb008d842e3d99e20790c4f6dca4d4098a79e20502
[INFO] running `Command { std: "docker" "start" "-a" "994b2ae34c202c4f9af411bb008d842e3d99e20790c4f6dca4d4098a79e20502", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tmux_interface v0.3.1
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking shellexpand v3.1.0
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]     Checking muxit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.54s
[INFO] running `Command { std: "docker" "inspect" "994b2ae34c202c4f9af411bb008d842e3d99e20790c4f6dca4d4098a79e20502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994b2ae34c202c4f9af411bb008d842e3d99e20790c4f6dca4d4098a79e20502", kill_on_drop: false }`
[INFO] [stdout] 994b2ae34c202c4f9af411bb008d842e3d99e20790c4f6dca4d4098a79e20502