[INFO] crate qtrac-retest 4.0.3 is already in cache
[INFO] extracting crate qtrac-retest 4.0.3 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/qtrac-retest/4.0.3
[INFO] extracting crate qtrac-retest 4.0.3 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/qtrac-retest/4.0.3
[INFO] validating manifest of qtrac-retest-4.0.3 on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of qtrac-retest-4.0.3 on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing qtrac-retest-4.0.3
[INFO] finished frobbing qtrac-retest-4.0.3
[INFO] frobbed toml for qtrac-retest-4.0.3 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/qtrac-retest/4.0.3/Cargo.toml
[INFO] started frobbing qtrac-retest-4.0.3
[INFO] finished frobbing qtrac-retest-4.0.3
[INFO] frobbed toml for qtrac-retest-4.0.3 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/qtrac-retest/4.0.3/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking qtrac-retest-4.0.3 against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/qtrac-retest/4.0.3:/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5825754adbcb178b064dfafe5cbc3e43b80a38ea6ae4acea6c980aa3371b62de
[INFO] running `"docker" "start" "-a" "5825754adbcb178b064dfafe5cbc3e43b80a38ea6ae4acea6c980aa3371b62de"`
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking qtrac-retest v4.0.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `error_chain_processing`, `impl_error_chain_kind`, `impl_error_chain_processed`, `impl_extract_backtrace`
[INFO] [stderr]  --> src/errors.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 |     error_chain, error_chain_processing, impl_error_chain_kind,
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 5 |     impl_error_chain_processed, impl_extract_backtrace,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `error_chain_processing`, `impl_error_chain_kind`, `impl_error_chain_processed`, `impl_extract_backtrace`
[INFO] [stderr]  --> src/errors.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 |     error_chain, error_chain_processing, impl_error_chain_kind,
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 5 |     impl_error_chain_processed, impl_extract_backtrace,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.90s
[INFO] running `"docker" "inspect" "5825754adbcb178b064dfafe5cbc3e43b80a38ea6ae4acea6c980aa3371b62de"`
[INFO] running `"docker" "rm" "-f" "5825754adbcb178b064dfafe5cbc3e43b80a38ea6ae4acea6c980aa3371b62de"`
[INFO] [stdout] 5825754adbcb178b064dfafe5cbc3e43b80a38ea6ae4acea6c980aa3371b62de