[INFO] fetching crate heisenberg 0.1.1...
[INFO] checking heisenberg-0.1.1 against try#b4c55082edd8dec08ce8af276d7054d9c4db20c4 for pr-147984
[INFO] extracting crate heisenberg 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate heisenberg 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate heisenberg 0.1.1
[INFO] tweaked toml for crates.io crate heisenberg 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate heisenberg 0.1.1 on toolchain b4c55082edd8dec08ce8af276d7054d9c4db20c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate heisenberg 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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d97b40f88fd967ba74f2bdfd07e85a202406d637b32cc3c7bcb8a9d3d4d3917
[INFO] running `Command { std: "docker" "start" "-a" "9d97b40f88fd967ba74f2bdfd07e85a202406d637b32cc3c7bcb8a9d3d4d3917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d97b40f88fd967ba74f2bdfd07e85a202406d637b32cc3c7bcb8a9d3d4d3917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d97b40f88fd967ba74f2bdfd07e85a202406d637b32cc3c7bcb8a9d3d4d3917", kill_on_drop: false }`
[INFO] [stdout] 9d97b40f88fd967ba74f2bdfd07e85a202406d637b32cc3c7bcb8a9d3d4d3917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6582322454fa3536635bab73a1c7afdffc6e3197176c0b581b0210f6277f5355
[INFO] running `Command { std: "docker" "start" "-a" "6582322454fa3536635bab73a1c7afdffc6e3197176c0b581b0210f6277f5355", kill_on_drop: false }`
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[INFO] [stderr]    Compiling basic-cookies v0.1.5
[INFO] [stderr]     Checking heisenberg v0.1.1 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/performance.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             black_box(Router::new(config.routes().to_vec(), Mode::Development));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let _ = black_box(Router::new(config.routes().to_vec(), Mode::Development));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.63s
[INFO] running `Command { std: "docker" "inspect" "6582322454fa3536635bab73a1c7afdffc6e3197176c0b581b0210f6277f5355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6582322454fa3536635bab73a1c7afdffc6e3197176c0b581b0210f6277f5355", kill_on_drop: false }`
[INFO] [stdout] 6582322454fa3536635bab73a1c7afdffc6e3197176c0b581b0210f6277f5355