[INFO] crate gox 0.2.0 is already in cache
[INFO] checking gox-0.2.0 against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] extracting crate gox 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate gox 0.2.0 on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gox 0.2.0
[INFO] finished tweaking crates.io crate gox 0.2.0
[INFO] tweaked toml for crates.io crate gox 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate gox 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64fd0f752ea92a2a2049e1379dd7d2370a46f47e56a84eeebd031398a71f4277
[INFO] running `"docker" "start" "-a" "64fd0f752ea92a2a2049e1379dd7d2370a46f47e56a84eeebd031398a71f4277"`
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking png v0.13.2
[INFO] [stderr]     Checking gox v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/utils.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     (buffer[0] << 0)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:10:9
[INFO] [stderr]     |
[INFO] [stderr] 10  | #![deny(unused)]
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     = note: `#[deny(unused_parens)]` implied by `#[deny(unused)]`
[INFO] [stderr] 
[INFO] [stderr] error: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/utils.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     (buffer[0] << 0)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:10:9
[INFO] [stderr]     |
[INFO] [stderr] 10  | #![deny(unused)]
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     = note: `#[deny(unused_parens)]` implied by `#[deny(unused)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `gox`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `gox`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "64fd0f752ea92a2a2049e1379dd7d2370a46f47e56a84eeebd031398a71f4277"`
[INFO] running `"docker" "rm" "-f" "64fd0f752ea92a2a2049e1379dd7d2370a46f47e56a84eeebd031398a71f4277"`
[INFO] [stdout] 64fd0f752ea92a2a2049e1379dd7d2370a46f47e56a84eeebd031398a71f4277