[INFO] crate artifact_lib 0.2.1 is already in cache
[INFO] extracting crate artifact_lib 0.2.1 into work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/reg/artifact_lib/0.2.1
[INFO] extracting crate artifact_lib 0.2.1 into work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/reg/artifact_lib/0.2.1
[INFO] validating manifest of artifact_lib-0.2.1 on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of artifact_lib-0.2.1 on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing artifact_lib-0.2.1
[INFO] finished frobbing artifact_lib-0.2.1
[INFO] frobbed toml for artifact_lib-0.2.1 written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/reg/artifact_lib/0.2.1/Cargo.toml
[INFO] started frobbing artifact_lib-0.2.1
[INFO] finished frobbing artifact_lib-0.2.1
[INFO] frobbed toml for artifact_lib-0.2.1 written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/reg/artifact_lib/0.2.1/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-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" "+589beb979c0f1a9736e02e578913db88398c3ba5-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" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking artifact_lib-0.2.1 against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-7/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/reg/artifact_lib/0.2.1:/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 71f32a7a1f894029f99227e533d6ee5b43783b27baf13c9dce771529b532ae71
[INFO] running `"docker" "start" "-a" "71f32a7a1f894029f99227e533d6ee5b43783b27baf13c9dce771529b532ae71"`
[INFO] [stderr]     Checking ammonia v1.2.0
[INFO] [stderr]     Checking reqwest v0.9.17
[INFO] [stderr]     Checking artifact_serde v0.2.1
[INFO] [stderr]     Checking artifact_lib v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `my_deck`
[INFO] [stderr]    --> src/lib.rs:426:13
[INFO] [stderr]     |
[INFO] [stderr] 426 |         let my_deck = my_artifact.get_deck(my_adc);
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_my_deck`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.21s
[INFO] running `"docker" "inspect" "71f32a7a1f894029f99227e533d6ee5b43783b27baf13c9dce771529b532ae71"`
[INFO] running `"docker" "rm" "-f" "71f32a7a1f894029f99227e533d6ee5b43783b27baf13c9dce771529b532ae71"`
[INFO] [stdout] 71f32a7a1f894029f99227e533d6ee5b43783b27baf13c9dce771529b532ae71