[INFO] crate optra 0.2.1 is already in cache
[INFO] extracting crate optra 0.2.1 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/optra/0.2.1
[INFO] extracting crate optra 0.2.1 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/optra/0.2.1
[INFO] validating manifest of optra-0.2.1 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 optra-0.2.1 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 optra-0.2.1
[INFO] finished frobbing optra-0.2.1
[INFO] frobbed toml for optra-0.2.1 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/optra/0.2.1/Cargo.toml
[INFO] started frobbing optra-0.2.1
[INFO] finished frobbing optra-0.2.1
[INFO] frobbed toml for optra-0.2.1 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/optra/0.2.1/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] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking optra-0.2.1 against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-5/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/optra/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9888411da1b9feb5cf78ad66cb2e62abb79e98711461ce3a4d1e6ec2718f6ca8
[INFO] running `"docker" "start" "-a" "9888411da1b9feb5cf78ad66cb2e62abb79e98711461ce3a4d1e6ec2718f6ca8"`
[INFO] [stderr]     Checking rdiff v0.1.2
[INFO] [stderr]     Checking optra v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/engine.rs:780:5
[INFO] [stderr]     |
[INFO] [stderr] 780 | /     macro_rules! create_list {
[INFO] [stderr] 781 | |         ( $( $x:expr ),* ) => {
[INFO] [stderr] 782 | |             {
[INFO] [stderr] 783 | |                 vec![$($x,)*].into_iter().collect::<LinkedList<_> >()
[INFO] [stderr] 784 | |             }
[INFO] [stderr] 785 | |         };
[INFO] [stderr] 786 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.22s
[INFO] running `"docker" "inspect" "9888411da1b9feb5cf78ad66cb2e62abb79e98711461ce3a4d1e6ec2718f6ca8"`
[INFO] running `"docker" "rm" "-f" "9888411da1b9feb5cf78ad66cb2e62abb79e98711461ce3a4d1e6ec2718f6ca8"`
[INFO] [stdout] 9888411da1b9feb5cf78ad66cb2e62abb79e98711461ce3a4d1e6ec2718f6ca8