[INFO] crate libimagcounter 0.4.0 is already in cache
[INFO] extracting crate libimagcounter 0.4.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/libimagcounter/0.4.0
[INFO] extracting crate libimagcounter 0.4.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/libimagcounter/0.4.0
[INFO] validating manifest of libimagcounter-0.4.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of libimagcounter-0.4.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing libimagcounter-0.4.0
[INFO] finished frobbing libimagcounter-0.4.0
[INFO] frobbed toml for libimagcounter-0.4.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/libimagcounter/0.4.0/Cargo.toml
[INFO] started frobbing libimagcounter-0.4.0
[INFO] finished frobbing libimagcounter-0.4.0
[INFO] frobbed toml for libimagcounter-0.4.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/libimagcounter/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking libimagcounter-0.4.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/libimagcounter/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7f318b823db64d30723e0f9c8b54d6f426734037798b9b290621c17b5f3ef777
[INFO] running `"docker" "start" "-a" "7f318b823db64d30723e0f9c8b54d6f426734037798b9b290621c17b5f3ef777"`
[INFO] [stderr]     Checking libimagerror v0.4.0
[INFO] [stderr]     Checking libimagutil v0.4.0
[INFO] [stderr]     Checking libimagstore v0.4.0
[INFO] [stderr]     Checking libimagcounter v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] error: the item `DerefMut` is imported redundantly
[INFO] [stderr]   --> src/counter.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::ops::DerefMut;
[INFO] [stderr]    |     ------------------ the item `DerefMut` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 67 |         use std::ops::DerefMut;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     unused_imports,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: the item `DerefMut` is imported redundantly
[INFO] [stderr]   --> src/counter.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::ops::DerefMut;
[INFO] [stderr]    |     ------------------ the item `DerefMut` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 67 |         use std::ops::DerefMut;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     unused_imports,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[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 `libimagcounter`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `libimagcounter`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7f318b823db64d30723e0f9c8b54d6f426734037798b9b290621c17b5f3ef777"`
[INFO] running `"docker" "rm" "-f" "7f318b823db64d30723e0f9c8b54d6f426734037798b9b290621c17b5f3ef777"`
[INFO] [stdout] 7f318b823db64d30723e0f9c8b54d6f426734037798b9b290621c17b5f3ef777