[INFO] updating cached repository jcswart/keep-trying
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jcswart/keep-trying
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jcswart/keep-trying" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jcswart/keep-trying"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jcswart/keep-trying'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jcswart/keep-trying" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/jcswart/keep-trying"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/jcswart/keep-trying'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3503567dcb2f33e0657dc381c097bdf0516b22f0
[INFO] sha for GitHub repo jcswart/keep-trying: 3503567dcb2f33e0657dc381c097bdf0516b22f0
[INFO] validating manifest of jcswart/keep-trying on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jcswart/keep-trying on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jcswart/keep-trying
[INFO] finished frobbing jcswart/keep-trying
[INFO] frobbed toml for jcswart/keep-trying written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jcswart/keep-trying/Cargo.toml
[INFO] started frobbing jcswart/keep-trying
[INFO] finished frobbing jcswart/keep-trying
[INFO] frobbed toml for jcswart/keep-trying written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/jcswart/keep-trying/Cargo.toml
[INFO] crate jcswart/keep-trying already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jcswart/keep-trying against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-3/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jcswart/keep-trying:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 13f849cd0fabb63a385cfc7db0bf680d41396181281777ebe0e303e7a0f29180
[INFO] running `"docker" "start" "-a" "13f849cd0fabb63a385cfc7db0bf680d41396181281777ebe0e303e7a0f29180"`
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking mio-uds v0.6.4
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking tokio-signal v0.1.4
[INFO] [stderr]     Checking tokio-process v0.1.5
[INFO] [stderr]     Checking kt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.40s
[INFO] running `"docker" "inspect" "13f849cd0fabb63a385cfc7db0bf680d41396181281777ebe0e303e7a0f29180"`
[INFO] running `"docker" "rm" "-f" "13f849cd0fabb63a385cfc7db0bf680d41396181281777ebe0e303e7a0f29180"`
[INFO] [stdout] 13f849cd0fabb63a385cfc7db0bf680d41396181281777ebe0e303e7a0f29180