[INFO] fetching crate treeerror 0.1.1...
[INFO] checking treeerror-0.1.1 against 04e9298c771dcc8a88d17c0257382c1e4ae3da97 for pr-164582
[INFO] extracting crate treeerror 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate treeerror 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate treeerror 0.1.1
[INFO] tweaked toml for crates.io crate treeerror 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate treeerror 0.1.1 on toolchain 04e9298c771dcc8a88d17c0257382c1e4ae3da97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate treeerror 0.1.1 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" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a
[INFO] running `Command { std: "docker" "start" "e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a" "/opt/rustwide/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a" "/opt/rustwide/cargo-home/bin/cargo" "+04e9298c771dcc8a88d17c0257382c1e4ae3da97" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking treeerror v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: feature `more_qualified_paths` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(more_qualified_paths)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a", kill_on_drop: false }`
[INFO] [stdout] e5107a2dbec7d7c7256f157894e0a7e0477fca4de80ded5d2f4f3017eec5b83a
