[INFO] crate mmalloc 0.1.0 is already in cache
[INFO] checking mmalloc-0.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate mmalloc 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate mmalloc 0.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mmalloc 0.1.0
[INFO] finished tweaking crates.io crate mmalloc 0.1.0
[INFO] tweaked toml for crates.io crate mmalloc 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] db55cc2b50c93ccf4acdf43a9f7a9b34edbac89126bccf21e2ba678a09a4af38
[INFO] running `"docker" "start" "-a" "db55cc2b50c93ccf4acdf43a9f7a9b34edbac89126bccf21e2ba678a09a4af38"`
[INFO] [stderr]     Checking sc v0.1.5
[INFO] [stderr]     Checking mmalloc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(allocator)]
[INFO] [stderr]   |            ^^^^^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: non-builtin inner attributes are unstable
[INFO] [stderr]  --> src/lib.rs:1:36
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "allocator", allocator)]
[INFO] [stderr]   |                                    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
[INFO] [stderr]   = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `allocator` in this scope
[INFO] [stderr]  --> src/lib.rs:1:36
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "allocator", allocator)]
[INFO] [stderr]   |                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]   --> src/allocator.rs:89:3
[INFO] [stderr]    |
[INFO] [stderr] 89 | #[test]
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]   --> src/allocator.rs:95:3
[INFO] [stderr]    |
[INFO] [stderr] 95 | #[test]
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]    --> src/allocator.rs:101:3
[INFO] [stderr]     |
[INFO] [stderr] 101 | #[test]
[INFO] [stderr]     |   ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(allocator)]
[INFO] [stderr]   |            ^^^^^^^^^ feature has been removed
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: non-builtin inner attributes are unstable
[INFO] [stderr]  --> src/lib.rs:1:36
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "allocator", allocator)]
[INFO] [stderr]   |                                    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
[INFO] [stderr]   = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `mmalloc`.
[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: cannot find attribute `allocator` in this scope
[INFO] [stderr]  --> src/lib.rs:1:36
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "allocator", allocator)]
[INFO] [stderr]   |                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]   --> src/allocator.rs:89:3
[INFO] [stderr]    |
[INFO] [stderr] 89 | #[test]
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]   --> src/allocator.rs:95:3
[INFO] [stderr]    |
[INFO] [stderr] 95 | #[test]
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the attribute macro `test`
[INFO] [stderr]    --> src/allocator.rs:101:3
[INFO] [stderr]     |
[INFO] [stderr] 101 | #[test]
[INFO] [stderr]     |   ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `mmalloc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "db55cc2b50c93ccf4acdf43a9f7a9b34edbac89126bccf21e2ba678a09a4af38"`
[INFO] running `"docker" "rm" "-f" "db55cc2b50c93ccf4acdf43a9f7a9b34edbac89126bccf21e2ba678a09a4af38"`
[INFO] [stdout] db55cc2b50c93ccf4acdf43a9f7a9b34edbac89126bccf21e2ba678a09a4af38