[INFO] updating cached repository hjr3/building-better-interfaces
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hjr3/building-better-interfaces
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hjr3/building-better-interfaces" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/hjr3/building-better-interfaces"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/hjr3/building-better-interfaces'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hjr3/building-better-interfaces" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/hjr3/building-better-interfaces"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/hjr3/building-better-interfaces'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4d30913d5f3230f435fed75e13571d4164d6b5d3
[INFO] sha for GitHub repo hjr3/building-better-interfaces: 4d30913d5f3230f435fed75e13571d4164d6b5d3
[INFO] validating manifest of hjr3/building-better-interfaces on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hjr3/building-better-interfaces on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hjr3/building-better-interfaces
[INFO] finished frobbing hjr3/building-better-interfaces
[INFO] frobbed toml for hjr3/building-better-interfaces written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/hjr3/building-better-interfaces/Cargo.toml
[INFO] started frobbing hjr3/building-better-interfaces
[INFO] finished frobbing hjr3/building-better-interfaces
[INFO] frobbed toml for hjr3/building-better-interfaces written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/hjr3/building-better-interfaces/Cargo.toml
[INFO] crate hjr3/building-better-interfaces already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hjr3/building-better-interfaces against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-5/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/hjr3/building-better-interfaces:/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 715bd1680918b4aeeb94d5e0e804a1272645d6655643f6abd3a280b344987372
[INFO] running `"docker" "start" "-a" "715bd1680918b4aeeb94d5e0e804a1272645d6655643f6abd3a280b344987372"`
[INFO] [stderr]     Checking building-better-interfaces v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "715bd1680918b4aeeb94d5e0e804a1272645d6655643f6abd3a280b344987372"`
[INFO] running `"docker" "rm" "-f" "715bd1680918b4aeeb94d5e0e804a1272645d6655643f6abd3a280b344987372"`
[INFO] [stdout] 715bd1680918b4aeeb94d5e0e804a1272645d6655643f6abd3a280b344987372