[INFO] fetching crate freertos-cargo-build 0.1.1...
[INFO] checking freertos-cargo-build-0.1.1 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate freertos-cargo-build 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate freertos-cargo-build 0.1.1 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate freertos-cargo-build 0.1.1
[INFO] finished tweaking crates.io crate freertos-cargo-build 0.1.1
[INFO] tweaked toml for crates.io crate freertos-cargo-build 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e3b23056b5c5ef49920a362d1f2e4bdf64640afa9df5c54fc88db04b9e7836a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7e3b23056b5c5ef49920a362d1f2e4bdf64640afa9df5c54fc88db04b9e7836a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e3b23056b5c5ef49920a362d1f2e4bdf64640afa9df5c54fc88db04b9e7836a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e3b23056b5c5ef49920a362d1f2e4bdf64640afa9df5c54fc88db04b9e7836a", kill_on_drop: false }`
[INFO] [stdout] 7e3b23056b5c5ef49920a362d1f2e4bdf64640afa9df5c54fc88db04b9e7836a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89f325f5f48db5992ae4157513ddec5a4cf89f5db7ce4cb0e6d2e4b917d78297
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "89f325f5f48db5992ae4157513ddec5a4cf89f5db7ce4cb0e6d2e4b917d78297", kill_on_drop: false }`
[INFO] [stderr]     Checking cc v1.0.62
[INFO] [stderr]     Checking freertos-cargo-build v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 |     let mut b = Builder::new();
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "89f325f5f48db5992ae4157513ddec5a4cf89f5db7ce4cb0e6d2e4b917d78297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89f325f5f48db5992ae4157513ddec5a4cf89f5db7ce4cb0e6d2e4b917d78297", kill_on_drop: false }`
[INFO] [stdout] 89f325f5f48db5992ae4157513ddec5a4cf89f5db7ce4cb0e6d2e4b917d78297