[INFO] updating cached repository bennyyip/plug2pack
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bennyyip/plug2pack
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bennyyip/plug2pack" "work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/bennyyip/plug2pack"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/bennyyip/plug2pack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bennyyip/plug2pack" "work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/bennyyip/plug2pack"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/bennyyip/plug2pack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 29ccb6cd58919007380d790864331c1762f1e924
[INFO] sha for GitHub repo bennyyip/plug2pack: 29ccb6cd58919007380d790864331c1762f1e924
[INFO] validating manifest of bennyyip/plug2pack on toolchain master#df25d79a33b0c82b716699a75a41bfdc6089850a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bennyyip/plug2pack on toolchain try#424a4ae163d6517f301cd4048a4b5dd785be5b2f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bennyyip/plug2pack
[INFO] finished frobbing bennyyip/plug2pack
[INFO] frobbed toml for bennyyip/plug2pack written to work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/bennyyip/plug2pack/Cargo.toml
[INFO] started frobbing bennyyip/plug2pack
[INFO] finished frobbing bennyyip/plug2pack
[INFO] frobbed toml for bennyyip/plug2pack written to work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/bennyyip/plug2pack/Cargo.toml
[INFO] crate bennyyip/plug2pack already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bennyyip/plug2pack against master#df25d79a33b0c82b716699a75a41bfdc6089850a for pr-59928
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-59928/worker-7/master#df25d79a33b0c82b716699a75a41bfdc6089850a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/bennyyip/plug2pack:/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" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6d0345fe0469f9bdc42370689383a8f80ca93c124708cce856ab869a2a5771c7
[INFO] running `"docker" "start" "-a" "6d0345fe0469f9bdc42370689383a8f80ca93c124708cce856ab869a2a5771c7"`
[INFO] [stderr]     Checking serde_yaml v0.7.1
[INFO] [stderr]    Compiling structopt-derive v0.1.1
[INFO] [stderr]     Checking nom v3.2.0
[INFO] [stderr]     Checking structopt v0.1.1
[INFO] [stderr]     Checking plug2pack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
[INFO] running `"docker" "inspect" "6d0345fe0469f9bdc42370689383a8f80ca93c124708cce856ab869a2a5771c7"`
[INFO] running `"docker" "rm" "-f" "6d0345fe0469f9bdc42370689383a8f80ca93c124708cce856ab869a2a5771c7"`
[INFO] [stdout] 6d0345fe0469f9bdc42370689383a8f80ca93c124708cce856ab869a2a5771c7