[INFO] updating cached repository davidjimichael/mini
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davidjimichael/mini
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davidjimichael/mini" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/davidjimichael/mini"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/davidjimichael/mini'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davidjimichael/mini" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/davidjimichael/mini"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/davidjimichael/mini'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4e0d4e55c83f1ddf86b65928bbdebf5e85fba6b2
[INFO] sha for GitHub repo davidjimichael/mini: 4e0d4e55c83f1ddf86b65928bbdebf5e85fba6b2
[INFO] validating manifest of davidjimichael/mini on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of davidjimichael/mini on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing davidjimichael/mini
[INFO] finished frobbing davidjimichael/mini
[INFO] frobbed toml for davidjimichael/mini written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/davidjimichael/mini/Cargo.toml
[INFO] started frobbing davidjimichael/mini
[INFO] finished frobbing davidjimichael/mini
[INFO] frobbed toml for davidjimichael/mini written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/davidjimichael/mini/Cargo.toml
[INFO] crate davidjimichael/mini already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking davidjimichael/mini against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/davidjimichael/mini:/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 39e7ba7e08773e29470e03c1953e7294baa89eb6d2babf1bc792ef3f558d5442
[INFO] running `"docker" "start" "-a" "39e7ba7e08773e29470e03c1953e7294baa89eb6d2babf1bc792ef3f558d5442"`
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]    Compiling serde v1.0.93
[INFO] [stderr]    Compiling serde_derive v1.0.93
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking hackathon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.39s
[INFO] running `"docker" "inspect" "39e7ba7e08773e29470e03c1953e7294baa89eb6d2babf1bc792ef3f558d5442"`
[INFO] running `"docker" "rm" "-f" "39e7ba7e08773e29470e03c1953e7294baa89eb6d2babf1bc792ef3f558d5442"`
[INFO] [stdout] 39e7ba7e08773e29470e03c1953e7294baa89eb6d2babf1bc792ef3f558d5442