[INFO] updating cached repository rom1v/mio-sample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rom1v/mio-sample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rom1v/mio-sample" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/rom1v/mio-sample"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/rom1v/mio-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rom1v/mio-sample" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/rom1v/mio-sample"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/rom1v/mio-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c376d02aabe35bd38e2a653d98dc6b1d67c87141
[INFO] sha for GitHub repo rom1v/mio-sample: c376d02aabe35bd38e2a653d98dc6b1d67c87141
[INFO] validating manifest of rom1v/mio-sample on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rom1v/mio-sample on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rom1v/mio-sample
[INFO] finished frobbing rom1v/mio-sample
[INFO] frobbed toml for rom1v/mio-sample written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/rom1v/mio-sample/Cargo.toml
[INFO] started frobbing rom1v/mio-sample
[INFO] finished frobbing rom1v/mio-sample
[INFO] frobbed toml for rom1v/mio-sample written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/rom1v/mio-sample/Cargo.toml
[INFO] crate rom1v/mio-sample already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rom1v/mio-sample against master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-4/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/rom1v/mio-sample:/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" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ece69536c545cfbf679e66ac96245149bcf5e3eeeed11338f9aa80f5e279029b
[INFO] running `"docker" "start" "-a" "ece69536c545cfbf679e66ac96245149bcf5e3eeeed11338f9aa80f5e279029b"`
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking mio v0.6.9
[INFO] [stderr]     Checking mio-sample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `"docker" "inspect" "ece69536c545cfbf679e66ac96245149bcf5e3eeeed11338f9aa80f5e279029b"`
[INFO] running `"docker" "rm" "-f" "ece69536c545cfbf679e66ac96245149bcf5e3eeeed11338f9aa80f5e279029b"`
[INFO] [stdout] ece69536c545cfbf679e66ac96245149bcf5e3eeeed11338f9aa80f5e279029b