[INFO] cloning repository calvinchengx/chat
[INFO] running `"git" "clone" "--bare" "git://github.com/calvinchengx/chat.git" "work/cache/sources/gh/calvinchengx/chat"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/calvinchengx/chat'...
[INFO] running `"git" "clone" "work/cache/sources/gh/calvinchengx/chat" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/calvinchengx/chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/calvinchengx/chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/calvinchengx/chat" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/calvinchengx/chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/calvinchengx/chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d876c0394008cb6aa4be6911bf14a3ae1c2f2836
[INFO] sha for GitHub repo calvinchengx/chat: d876c0394008cb6aa4be6911bf14a3ae1c2f2836
[INFO] validating manifest of calvinchengx/chat on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of calvinchengx/chat on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing calvinchengx/chat
[INFO] finished frobbing calvinchengx/chat
[INFO] frobbed toml for calvinchengx/chat written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/calvinchengx/chat/Cargo.toml
[INFO] started frobbing calvinchengx/chat
[INFO] finished frobbing calvinchengx/chat
[INFO] frobbed toml for calvinchengx/chat written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/calvinchengx/chat/Cargo.toml
[INFO] crate calvinchengx/chat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking calvinchengx/chat against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/calvinchengx/chat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 52f348f93cad000f116ed612747008c1d67a3448f7c26a00d3c4fcc13fce54de
[INFO] running `"docker" "start" "-a" "52f348f93cad000f116ed612747008c1d67a3448f7c26a00d3c4fcc13fce54de"`
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking rocket v0.4.1
[INFO] [stderr]     Checking ws v0.8.1
[INFO] [stderr] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.1/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] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "52f348f93cad000f116ed612747008c1d67a3448f7c26a00d3c4fcc13fce54de"`
[INFO] running `"docker" "rm" "-f" "52f348f93cad000f116ed612747008c1d67a3448f7c26a00d3c4fcc13fce54de"`
[INFO] [stdout] 52f348f93cad000f116ed612747008c1d67a3448f7c26a00d3c4fcc13fce54de