[INFO] updating cached repository HidemotoNakada/rustpingpong
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HidemotoNakada/rustpingpong
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HidemotoNakada/rustpingpong" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/HidemotoNakada/rustpingpong"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/HidemotoNakada/rustpingpong'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HidemotoNakada/rustpingpong" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/HidemotoNakada/rustpingpong"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/HidemotoNakada/rustpingpong'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a286b242bf1df3bf28378888e38c3492b0aa3dd
[INFO] sha for GitHub repo HidemotoNakada/rustpingpong: 6a286b242bf1df3bf28378888e38c3492b0aa3dd
[INFO] validating manifest of HidemotoNakada/rustpingpong on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HidemotoNakada/rustpingpong on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing HidemotoNakada/rustpingpong
[INFO] finished frobbing HidemotoNakada/rustpingpong
[INFO] frobbed toml for HidemotoNakada/rustpingpong written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/HidemotoNakada/rustpingpong/Cargo.toml
[INFO] started frobbing HidemotoNakada/rustpingpong
[INFO] finished frobbing HidemotoNakada/rustpingpong
[INFO] frobbed toml for HidemotoNakada/rustpingpong written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/HidemotoNakada/rustpingpong/Cargo.toml
[INFO] crate HidemotoNakada/rustpingpong already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking HidemotoNakada/rustpingpong against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-2/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/HidemotoNakada/rustpingpong:/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" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bf6be105f8909f1bf4bf06910a195337453a76a2a7129ae2b968cb61302f4a38
[INFO] running `"docker" "start" "-a" "bf6be105f8909f1bf4bf06910a195337453a76a2a7129ae2b968cb61302f4a38"`
[INFO] [stderr]     Checking pingpong v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `"docker" "inspect" "bf6be105f8909f1bf4bf06910a195337453a76a2a7129ae2b968cb61302f4a38"`
[INFO] running `"docker" "rm" "-f" "bf6be105f8909f1bf4bf06910a195337453a76a2a7129ae2b968cb61302f4a38"`
[INFO] [stdout] bf6be105f8909f1bf4bf06910a195337453a76a2a7129ae2b968cb61302f4a38