[INFO] updating cached repository Centril/rust_strong_rc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Centril/rust_strong_rc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Centril/rust_strong_rc" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Centril/rust_strong_rc"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Centril/rust_strong_rc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Centril/rust_strong_rc" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Centril/rust_strong_rc"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Centril/rust_strong_rc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 67190f782090bd5aa95bbedb40d1ac292e08cd10
[INFO] sha for GitHub repo Centril/rust_strong_rc: 67190f782090bd5aa95bbedb40d1ac292e08cd10
[INFO] validating manifest of Centril/rust_strong_rc 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 Centril/rust_strong_rc 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 Centril/rust_strong_rc
[INFO] finished frobbing Centril/rust_strong_rc
[INFO] frobbed toml for Centril/rust_strong_rc written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Centril/rust_strong_rc/Cargo.toml
[INFO] started frobbing Centril/rust_strong_rc
[INFO] finished frobbing Centril/rust_strong_rc
[INFO] frobbed toml for Centril/rust_strong_rc written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Centril/rust_strong_rc/Cargo.toml
[INFO] crate Centril/rust_strong_rc already has a lockfile, it will not be regenerated
[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] 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 Centril/rust_strong_rc against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Centril/rust_strong_rc:/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] 7c8813f22effb052afe72a116cd960a5280453f3f820d02e3b3d2898e9abeee7
[INFO] running `"docker" "start" "-a" "7c8813f22effb052afe72a116cd960a5280453f3f820d02e3b3d2898e9abeee7"`
[INFO] [stderr]     Checking strong_rc v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `"docker" "inspect" "7c8813f22effb052afe72a116cd960a5280453f3f820d02e3b3d2898e9abeee7"`
[INFO] running `"docker" "rm" "-f" "7c8813f22effb052afe72a116cd960a5280453f3f820d02e3b3d2898e9abeee7"`
[INFO] [stdout] 7c8813f22effb052afe72a116cd960a5280453f3f820d02e3b3d2898e9abeee7