[INFO] updating cached repository GovTechSG/chkr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GovTechSG/chkr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GovTechSG/chkr" "work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/GovTechSG/chkr"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/GovTechSG/chkr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GovTechSG/chkr" "work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/GovTechSG/chkr"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/GovTechSG/chkr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 767e4218499563f16683fc0b38f3e6505ef80480
[INFO] sha for GitHub repo GovTechSG/chkr: 767e4218499563f16683fc0b38f3e6505ef80480
[INFO] validating manifest of GovTechSG/chkr on toolchain master#2bde39b8edce6463e1c37f8a8082a875e7b536b1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of GovTechSG/chkr on toolchain try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing GovTechSG/chkr
[INFO] finished frobbing GovTechSG/chkr
[INFO] frobbed toml for GovTechSG/chkr written to work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/GovTechSG/chkr/Cargo.toml
[INFO] started frobbing GovTechSG/chkr
[INFO] finished frobbing GovTechSG/chkr
[INFO] frobbed toml for GovTechSG/chkr written to work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/GovTechSG/chkr/Cargo.toml
[INFO] crate GovTechSG/chkr has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking GovTechSG/chkr against try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c for pr-57483
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57483/worker-0/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/GovTechSG/chkr:/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" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] af692c4ac9aea762c1aa47457830c3cf2da3a1e247c0bb14ff6a26aa4294bab3
[INFO] running `"docker" "start" "-a" "af692c4ac9aea762c1aa47457830c3cf2da3a1e247c0bb14ff6a26aa4294bab3"`
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking chkr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
[INFO] running `"docker" "inspect" "af692c4ac9aea762c1aa47457830c3cf2da3a1e247c0bb14ff6a26aa4294bab3"`
[INFO] running `"docker" "rm" "-f" "af692c4ac9aea762c1aa47457830c3cf2da3a1e247c0bb14ff6a26aa4294bab3"`
[INFO] [stdout] af692c4ac9aea762c1aa47457830c3cf2da3a1e247c0bb14ff6a26aa4294bab3