[INFO] crate proper 0.1.5 is already in cache
[INFO] checking proper-0.1.5 against try#1a399c10897767c36d147199696c96f193034e49 for pr-72644
[INFO] extracting crate proper 0.1.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate proper 0.1.5 on toolchain 1a399c10897767c36d147199696c96f193034e49
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate proper 0.1.5
[INFO] finished tweaking crates.io crate proper 0.1.5
[INFO] tweaked toml for crates.io crate proper 0.1.5 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1a399c10897767c36d147199696c96f193034e49" "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] 952f263d72c042c1966b61f858cee17345e09a8b924683778aa717c16e3e7552
[INFO] running `"docker" "start" "-a" "952f263d72c042c1966b61f858cee17345e09a8b924683778aa717c16e3e7552"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]     Checking quote v1.0.6
[INFO] [stderr]     Checking proper v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 | #![feature(bind_by_move_pattern_guards, proc_macro_diagnostic, proc_macro_span)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 | #![feature(bind_by_move_pattern_guards, proc_macro_diagnostic, proc_macro_span)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.40s
[INFO] running `"docker" "inspect" "952f263d72c042c1966b61f858cee17345e09a8b924683778aa717c16e3e7552"`
[INFO] running `"docker" "rm" "-f" "952f263d72c042c1966b61f858cee17345e09a8b924683778aa717c16e3e7552"`
[INFO] [stdout] 952f263d72c042c1966b61f858cee17345e09a8b924683778aa717c16e3e7552