[INFO] crate deque_cell 0.1.0 is already in cache
[INFO] checking deque_cell-0.1.0 against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] extracting crate deque_cell 0.1.0 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate deque_cell 0.1.0 on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate deque_cell 0.1.0
[INFO] finished tweaking crates.io crate deque_cell 0.1.0
[INFO] tweaked toml for crates.io crate deque_cell 0.1.0 written to work/builds/worker-5/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f99320d4b8b1fed9a179cc412c55c1f5b66e2d4658fde3d38641e6e7bab136b1
[INFO] running `"docker" "start" "-a" "f99320d4b8b1fed9a179cc412c55c1f5b66e2d4658fde3d38641e6e7bab136b1"`
[INFO] [stderr]     Checking deque_cell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0635]: unknown feature `fnbox`
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(fnbox)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `deque_cell`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stderr]   --> src/lib.rs:67:6
[INFO] [stderr]    |
[INFO] [stderr] 67 |     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 `deque_cell`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f99320d4b8b1fed9a179cc412c55c1f5b66e2d4658fde3d38641e6e7bab136b1"`
[INFO] running `"docker" "rm" "-f" "f99320d4b8b1fed9a179cc412c55c1f5b66e2d4658fde3d38641e6e7bab136b1"`
[INFO] [stdout] f99320d4b8b1fed9a179cc412c55c1f5b66e2d4658fde3d38641e6e7bab136b1