Dec 19 21:12:33.731 INFO checking ZacharyKamerling/rust_rts against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:12:33.731 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/ZacharyKamerling/rust_rts:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:12:34.204 INFO [stdout] 977ac72a9995311d725302643949caa4cccaf2cee4de7ec21bace1d41e254823
Dec 19 21:12:34.206 INFO running `"docker" "start" "-a" "977ac72a9995311d725302643949caa4cccaf2cee4de7ec21bace1d41e254823"`
Dec 19 21:12:35.193 INFO [stderr]     Checking byteorder v0.3.13
Dec 19 21:12:35.196 INFO [stderr]     Checking rand v0.3.15
Dec 19 21:12:35.198 INFO [stderr]     Checking time v0.1.37
Dec 19 21:12:35.201 INFO [stderr]     Checking net2 v0.2.29
Dec 19 21:12:35.201 INFO [stderr]     Checking log v0.4.3
Dec 19 21:12:35.201 INFO [stderr]     Checking url v1.7.0
Dec 19 21:12:37.762 INFO [stderr]     Checking mio v0.6.14
Dec 19 21:12:39.689 INFO [stderr]     Checking num-bigint v0.1.39
Dec 19 21:12:40.976 INFO [stderr]     Checking ws v0.7.6
Dec 19 21:12:41.534 INFO [stderr]     Checking num-rational v0.1.38
Dec 19 21:12:42.454 INFO [stderr]     Checking num v0.1.39
Dec 19 21:12:43.422 INFO [stderr]     Checking rust_rts v0.0.1 (/opt/crater/workdir)
Dec 19 21:12:44.725 INFO [stderr] warning: unused import: `libs::bitvec::test::Bencher`
Dec 19 21:12:44.732 INFO [stderr]  --> src/libs/bitvec.rs:4:5
Dec 19 21:12:44.732 INFO [stderr]   |
Dec 19 21:12:44.732 INFO [stderr] 4 | use libs::bitvec::test::Bencher;
Dec 19 21:12:44.732 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:12:44.732 INFO [stderr]   |
Dec 19 21:12:44.732 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:12:44.732 INFO [stderr] 
Dec 19 21:12:46.240 INFO [stderr] warning: unused variable: `is_extractor`
Dec 19 21:12:46.240 INFO [stderr]   --> src/behavior/unit/building.rs:81:9
Dec 19 21:12:46.240 INFO [stderr]    |
Dec 19 21:12:46.240 INFO [stderr] 81 |     let is_extractor = proto.is_extractor();
Dec 19 21:12:46.240 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_is_extractor` instead
Dec 19 21:12:46.240 INFO [stderr]    |
Dec 19 21:12:46.240 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:12:46.240 INFO [stderr] 
Dec 19 21:12:46.320 INFO [stderr] warning: unused variable: `is_extractor`
Dec 19 21:12:46.320 INFO [stderr]   --> src/behavior/unit/building.rs:81:9
Dec 19 21:12:46.320 INFO [stderr]    |
Dec 19 21:12:46.320 INFO [stderr] 81 |     let is_extractor = proto.is_extractor();
Dec 19 21:12:46.320 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_is_extractor` instead
Dec 19 21:12:46.320 INFO [stderr]    |
Dec 19 21:12:46.320 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:12:46.320 INFO [stderr] 
Dec 19 21:12:47.424 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.37s
Dec 19 21:12:48.687 INFO running `"docker" "inspect" "977ac72a9995311d725302643949caa4cccaf2cee4de7ec21bace1d41e254823"`
Dec 19 21:12:48.999 INFO running `"docker" "rm" "-f" "977ac72a9995311d725302643949caa4cccaf2cee4de7ec21bace1d41e254823"`
Dec 19 21:12:49.372 INFO [stdout] 977ac72a9995311d725302643949caa4cccaf2cee4de7ec21bace1d41e254823