[INFO] fetching crate m 0.1.1...
[INFO] checking m-0.1.1 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate m 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate m 0.1.1 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate m 0.1.1
[INFO] finished tweaking crates.io crate m 0.1.1
[INFO] tweaked toml for crates.io crate m 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] ef2a9cba3b3fd5380fec433d82fc42fdd3db7c27eaccdafd9a669220b9563b7f
[INFO] running `"docker" "start" "-a" "ef2a9cba3b3fd5380fec433d82fc42fdd3db7c27eaccdafd9a669220b9563b7f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking m v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:132:14
[INFO] [stderr]     |
[INFO] [stderr] 132 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `if_same_then_else`
[INFO] [stderr]    --> src/ll.rs:134:14
[INFO] [stderr]     |
[INFO] [stderr] 134 |     #![allow(if_same_then_else)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:241:14
[INFO] [stderr]     |
[INFO] [stderr] 241 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `eq_op`
[INFO] [stderr]    --> src/ll.rs:242:14
[INFO] [stderr]     |
[INFO] [stderr] 242 |     #![allow(eq_op)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.3.2
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:132:14
[INFO] [stderr]     |
[INFO] [stderr] 132 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `if_same_then_else`
[INFO] [stderr]    --> src/ll.rs:134:14
[INFO] [stderr]     |
[INFO] [stderr] 134 |     #![allow(if_same_then_else)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:241:14
[INFO] [stderr]     |
[INFO] [stderr] 241 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `eq_op`
[INFO] [stderr]    --> src/ll.rs:242:14
[INFO] [stderr]     |
[INFO] [stderr] 242 |     #![allow(eq_op)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `m`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ef2a9cba3b3fd5380fec433d82fc42fdd3db7c27eaccdafd9a669220b9563b7f"`
[INFO] running `"docker" "rm" "-f" "ef2a9cba3b3fd5380fec433d82fc42fdd3db7c27eaccdafd9a669220b9563b7f"`
[INFO] [stdout] ef2a9cba3b3fd5380fec433d82fc42fdd3db7c27eaccdafd9a669220b9563b7f