[INFO] crate serialport 3.2.0 is already in cache
[INFO] extracting crate serialport 3.2.0 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/serialport/3.2.0
[INFO] extracting crate serialport 3.2.0 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/serialport/3.2.0
[INFO] validating manifest of serialport-3.2.0 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of serialport-3.2.0 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing serialport-3.2.0
[INFO] finished frobbing serialport-3.2.0
[INFO] frobbed toml for serialport-3.2.0 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/serialport/3.2.0/Cargo.toml
[INFO] started frobbing serialport-3.2.0
[INFO] finished frobbing serialport-3.2.0
[INFO] frobbed toml for serialport-3.2.0 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/serialport/3.2.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking serialport-3.2.0 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-3/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/serialport/3.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b1447a064ede4210fee3a80d439369b36118e36aa339c2778b40f0d8008f2913
[INFO] running `"docker" "start" "-a" "b1447a064ede4210fee3a80d439369b36118e36aa339c2778b40f0d8008f2913"`
[INFO] [stderr]     Checking serialport v3.2.0 (/opt/crater/workdir)
[INFO] [stderr] error: the item `libc` is imported redundantly
[INFO] [stderr]   --> src/posix/tty.rs:75:25
[INFO] [stderr]    |
[INFO] [stderr] 17 | use nix::{self, libc, unistd};
[INFO] [stderr]    |                 ---- the item `libc` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 75 |         use nix::libc::{self, cfmakeraw, tcflush, tcgetattr, tcsetattr};
[INFO] [stderr]    |                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:19:84
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![deny(missing_docs, missing_debug_implementations, missing_copy_implementations, unused)]
[INFO] [stderr]    |                                                                                    ^^^^^^
[INFO] [stderr]    = note: #[deny(unused_imports)] implied by #[deny(unused)]
[INFO] [stderr] 
[INFO] [stderr] error: the item `libc` is imported redundantly
[INFO] [stderr]   --> src/posix/tty.rs:75:25
[INFO] [stderr]    |
[INFO] [stderr] 17 | use nix::{self, libc, unistd};
[INFO] [stderr]    |                 ---- the item `libc` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 75 |         use nix::libc::{self, cfmakeraw, tcflush, tcgetattr, tcsetattr};
[INFO] [stderr]    |                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:19:84
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![deny(missing_docs, missing_debug_implementations, missing_copy_implementations, unused)]
[INFO] [stderr]    |                                                                                    ^^^^^^
[INFO] [stderr]    = note: #[deny(unused_imports)] 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 `serialport`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `serialport`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b1447a064ede4210fee3a80d439369b36118e36aa339c2778b40f0d8008f2913"`
[INFO] running `"docker" "rm" "-f" "b1447a064ede4210fee3a80d439369b36118e36aa339c2778b40f0d8008f2913"`
[INFO] [stdout] b1447a064ede4210fee3a80d439369b36118e36aa339c2778b40f0d8008f2913