[INFO] updating cached repository iosmanthus/compiler-theory-lab2-demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/iosmanthus/compiler-theory-lab2-demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/iosmanthus/compiler-theory-lab2-demo" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/iosmanthus/compiler-theory-lab2-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/iosmanthus/compiler-theory-lab2-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/iosmanthus/compiler-theory-lab2-demo" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/iosmanthus/compiler-theory-lab2-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/iosmanthus/compiler-theory-lab2-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dcb1c16960ebf5691fb9bb6545626d3bc3f5308b
[INFO] sha for GitHub repo iosmanthus/compiler-theory-lab2-demo: dcb1c16960ebf5691fb9bb6545626d3bc3f5308b
[INFO] validating manifest of iosmanthus/compiler-theory-lab2-demo 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 iosmanthus/compiler-theory-lab2-demo 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 iosmanthus/compiler-theory-lab2-demo
[INFO] finished frobbing iosmanthus/compiler-theory-lab2-demo
[INFO] frobbed toml for iosmanthus/compiler-theory-lab2-demo written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/iosmanthus/compiler-theory-lab2-demo/Cargo.toml
[INFO] started frobbing iosmanthus/compiler-theory-lab2-demo
[INFO] finished frobbing iosmanthus/compiler-theory-lab2-demo
[INFO] frobbed toml for iosmanthus/compiler-theory-lab2-demo written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/iosmanthus/compiler-theory-lab2-demo/Cargo.toml
[INFO] crate iosmanthus/compiler-theory-lab2-demo 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking iosmanthus/compiler-theory-lab2-demo 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/iosmanthus/compiler-theory-lab2-demo:/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] 1a666f08da4cb3f851fcb3150d26c1b71ce128d77f71032b3e3213c572f9ddb7
[INFO] running `"docker" "start" "-a" "1a666f08da4cb3f851fcb3150d26c1b71ce128d77f71032b3e3213c572f9ddb7"`
[INFO] [stderr]     Checking regular-language-utils v0.1.0 (https://github.com/iosmanthus/regular-language-utils.git#56bee730)
[INFO] [stderr]     Checking serde v1.0.90
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking unicase_serde v0.1.0
[INFO] [stderr]     Checking rocket v0.4.0
[INFO] [stderr] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.0/src/fairing/ad_hoc.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::boxed::FnBox;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `rocket`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1a666f08da4cb3f851fcb3150d26c1b71ce128d77f71032b3e3213c572f9ddb7"`
[INFO] running `"docker" "rm" "-f" "1a666f08da4cb3f851fcb3150d26c1b71ce128d77f71032b3e3213c572f9ddb7"`
[INFO] [stdout] 1a666f08da4cb3f851fcb3150d26c1b71ce128d77f71032b3e3213c572f9ddb7