[INFO] crate fifo 0.2.0 is already in cache
[INFO] checking fifo-0.2.0 against master#0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf for pr-71814
[INFO] extracting crate fifo 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate fifo 0.2.0 on toolchain 0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fifo 0.2.0
[INFO] finished tweaking crates.io crate fifo 0.2.0
[INFO] tweaked toml for crates.io crate fifo 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5d7c07bdbd112162d878c40a4c59b79b77dbfcf83e069fe4704d24727daf5eb6
[INFO] running `"docker" "start" "-a" "5d7c07bdbd112162d878c40a4c59b79b77dbfcf83e069fe4704d24727daf5eb6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking fifo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | use alloc::heap;
[INFO] [stderr]    |     ^^^^^^^^^^^ no `heap` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now
[INFO] [stderr]    --> src/lib.rs:118:6
[INFO] [stderr]     |
[INFO] [stderr] 118 | impl !Sync for Sender {}
[INFO] [stderr]     |      ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #68318 <https://github.com/rust-lang/rust/issues/68318> for more information
[INFO] [stderr]     = help: add `#![feature(negative_impls)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now
[INFO] [stderr]    --> src/lib.rs:119:6
[INFO] [stderr]     |
[INFO] [stderr] 119 | impl !Sync for Receiver {}
[INFO] [stderr]     |      ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #68318 <https://github.com/rust-lang/rust/issues/68318> for more information
[INFO] [stderr]     = help: add `#![feature(negative_impls)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `alloc::heap`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | use alloc::heap;
[INFO] [stderr]    |     ^^^^^^^^^^^ no `heap` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now
[INFO] [stderr]    --> src/lib.rs:118:6
[INFO] [stderr]     |
[INFO] [stderr] 118 | impl !Sync for Sender {}
[INFO] [stderr]     |      ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #68318 <https://github.com/rust-lang/rust/issues/68318> for more information
[INFO] [stderr]     = help: add `#![feature(negative_impls)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: negative trait bounds are not yet fully implemented; use marker types for now
[INFO] [stderr]    --> src/lib.rs:119:6
[INFO] [stderr]     |
[INFO] [stderr] 119 | impl !Sync for Receiver {}
[INFO] [stderr]     |      ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #68318 <https://github.com/rust-lang/rust/issues/68318> for more information
[INFO] [stderr]     = help: add `#![feature(negative_impls)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `fifo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `fifo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5d7c07bdbd112162d878c40a4c59b79b77dbfcf83e069fe4704d24727daf5eb6"`
[INFO] running `"docker" "rm" "-f" "5d7c07bdbd112162d878c40a4c59b79b77dbfcf83e069fe4704d24727daf5eb6"`
[INFO] [stdout] 5d7c07bdbd112162d878c40a4c59b79b77dbfcf83e069fe4704d24727daf5eb6