[INFO] updating cached repository jackcmay/sandbox_rust_rebuilds
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jackcmay/sandbox_rust_rebuilds
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jackcmay/sandbox_rust_rebuilds" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jackcmay/sandbox_rust_rebuilds"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jackcmay/sandbox_rust_rebuilds'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jackcmay/sandbox_rust_rebuilds" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jackcmay/sandbox_rust_rebuilds"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jackcmay/sandbox_rust_rebuilds'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e83e10154e143be1976f603b298393ac35b1ddd5
[INFO] sha for GitHub repo jackcmay/sandbox_rust_rebuilds: e83e10154e143be1976f603b298393ac35b1ddd5
[INFO] validating manifest of jackcmay/sandbox_rust_rebuilds on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jackcmay/sandbox_rust_rebuilds on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jackcmay/sandbox_rust_rebuilds
[INFO] removed workspace from jackcmay/sandbox_rust_rebuilds
[INFO] finished frobbing jackcmay/sandbox_rust_rebuilds
[INFO] frobbed toml for jackcmay/sandbox_rust_rebuilds written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jackcmay/sandbox_rust_rebuilds/Cargo.toml
[INFO] started frobbing jackcmay/sandbox_rust_rebuilds
[INFO] removed workspace from jackcmay/sandbox_rust_rebuilds
[INFO] finished frobbing jackcmay/sandbox_rust_rebuilds
[INFO] frobbed toml for jackcmay/sandbox_rust_rebuilds written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jackcmay/sandbox_rust_rebuilds/Cargo.toml
[INFO] crate jackcmay/sandbox_rust_rebuilds already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/jackcmay/sandbox_rust_rebuilds/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jackcmay/sandbox_rust_rebuilds against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/jackcmay/sandbox_rust_rebuilds:/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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 52019c4c5a0f9a89018c53975721383dc969a80c15e10a1eea2754db7ea9b828
[INFO] running `"docker" "start" "-a" "52019c4c5a0f9a89018c53975721383dc969a80c15e10a1eea2754db7ea9b828"`
[INFO] [stderr]     Checking reqwest v0.9.20
[INFO] [stderr]     Checking root v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.05s
[INFO] running `"docker" "inspect" "52019c4c5a0f9a89018c53975721383dc969a80c15e10a1eea2754db7ea9b828"`
[INFO] running `"docker" "rm" "-f" "52019c4c5a0f9a89018c53975721383dc969a80c15e10a1eea2754db7ea9b828"`
[INFO] [stdout] 52019c4c5a0f9a89018c53975721383dc969a80c15e10a1eea2754db7ea9b828