[INFO] crate luther 0.1.0 is already in cache
[INFO] extracting crate luther 0.1.0 into work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/reg/luther/0.1.0
[INFO] extracting crate luther 0.1.0 into work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/reg/luther/0.1.0
[INFO] validating manifest of luther-0.1.0 on toolchain master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of luther-0.1.0 on toolchain try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing luther-0.1.0
[INFO] finished frobbing luther-0.1.0
[INFO] frobbed toml for luther-0.1.0 written to work/ex/pr-60444/sources/master#92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf/reg/luther/0.1.0/Cargo.toml
[INFO] started frobbing luther-0.1.0
[INFO] finished frobbing luther-0.1.0
[INFO] frobbed toml for luther-0.1.0 written to work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/reg/luther/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+92b5e20ad59b183a2e6cd79423f54b8aa7ac9cbf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking luther-0.1.0 against try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b for pr-60444
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60444/worker-5/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60444/sources/try#cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b/reg/luther/0.1.0:/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" "+cf8e5a06b289fbcdaf75ca55c057b2cb09fff33b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1071bba4ecf22b60272e221e28bc3767bfcd45fbf7f27ea6745ae133a5b4511f
[INFO] running `"docker" "start" "-a" "1071bba4ecf22b60272e221e28bc3767bfcd45fbf7f27ea6745ae133a5b4511f"`
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]     Checking luther v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/span.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         Location::new(usize::max_value()) + 3;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `"docker" "inspect" "1071bba4ecf22b60272e221e28bc3767bfcd45fbf7f27ea6745ae133a5b4511f"`
[INFO] running `"docker" "rm" "-f" "1071bba4ecf22b60272e221e28bc3767bfcd45fbf7f27ea6745ae133a5b4511f"`
[INFO] [stdout] 1071bba4ecf22b60272e221e28bc3767bfcd45fbf7f27ea6745ae133a5b4511f