Dec 18 18:37:47.008 INFO checking amber-0.5.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:37:47.008 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/amber/0.5.1:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 18:37:47.348 INFO [stdout] b32e4a685d898bcc7f8fe438634d608eeb792c47a383f389dbf0574a5c466144
Dec 18 18:37:47.354 INFO running `"docker" "start" "-a" "b32e4a685d898bcc7f8fe438634d608eeb792c47a383f389dbf0574a5c466144"`
Dec 18 18:37:49.476 INFO [stderr]    Compiling semver-parser v0.7.0
Dec 18 18:37:49.476 INFO [stderr]    Compiling libc v0.2.45
Dec 18 18:37:49.476 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 18 18:37:49.476 INFO [stderr]     Checking void v1.0.2
Dec 18 18:37:49.479 INFO [stderr]    Compiling unicode-xid v0.1.0
Dec 18 18:37:49.479 INFO [stderr]    Compiling version_check v0.1.5
Dec 18 18:37:49.479 INFO [stderr]    Compiling arrayvec v0.4.9
Dec 18 18:37:49.479 INFO [stderr]     Checking nodrop v0.1.13
Dec 18 18:37:50.496 INFO [stderr]     Checking cfg-if v0.1.6
Dec 18 18:37:50.756 INFO [stderr]    Compiling unicode-segmentation v1.2.1
Dec 18 18:37:50.844 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 18 18:37:51.308 INFO [stderr]     Checking rand_core v0.3.0
Dec 18 18:37:51.761 INFO [stderr]    Compiling nix v0.11.0
Dec 18 18:37:51.762 INFO [stderr]     Checking strsim v0.7.0
Dec 18 18:37:52.208 INFO [stderr]     Checking lazy_static v1.2.0
Dec 18 18:37:52.737 INFO [stderr]     Checking memoffset v0.2.1
Dec 18 18:37:53.213 INFO [stderr]     Checking ansi_term v0.11.0
Dec 18 18:37:53.462 INFO [stderr]     Checking scopeguard v0.3.3
Dec 18 18:37:53.580 INFO [stderr]     Checking ucd-util v0.1.3
Dec 18 18:37:53.636 INFO [stderr]     Checking vec_map v0.8.1
Dec 18 18:37:53.898 INFO [stderr]     Checking bitflags v1.0.4
Dec 18 18:37:53.972 INFO [stderr]    Compiling regex v1.1.0
Dec 18 18:37:54.028 INFO [stderr]     Checking remove_dir_all v0.5.1
Dec 18 18:37:54.423 INFO [stderr]     Checking byteorder v1.2.7
Dec 18 18:37:54.520 INFO [stderr]     Checking utf8-ranges v1.0.2
Dec 18 18:37:54.552 INFO [stderr]     Checking scoped_threadpool v0.1.9
Dec 18 18:37:54.944 INFO [stderr]     Checking rlibc v1.0.0
Dec 18 18:37:55.122 INFO [stderr]     Checking glob v0.2.11
Dec 18 18:37:55.426 INFO [stderr]     Checking textwrap v0.10.0
Dec 18 18:37:55.590 INFO [stderr]     Checking unreachable v1.0.0
Dec 18 18:37:55.678 INFO [stderr]     Checking crossbeam-utils v0.3.2
Dec 18 18:37:56.010 INFO [stderr]     Checking owning_ref v0.3.3
Dec 18 18:37:56.871 INFO [stderr]    Compiling heck v0.3.0
Dec 18 18:37:57.480 INFO [stderr]     Checking rand_isaac v0.1.1
Dec 18 18:37:57.612 INFO [stderr]     Checking rand_hc v0.1.0
Dec 18 18:37:57.644 INFO [stderr]     Checking rand_xorshift v0.1.0
Dec 18 18:37:58.052 INFO [stderr]     Checking thread_local v0.3.6
Dec 18 18:37:58.167 INFO [stderr]    Compiling memchr v2.1.2
Dec 18 18:37:58.188 INFO [stderr]     Checking regex-syntax v0.6.4
Dec 18 18:37:58.432 INFO [stderr]    Compiling semver v0.9.0
Dec 18 18:37:59.596 INFO [stderr]     Checking smallvec v0.6.7
Dec 18 18:37:59.653 INFO [stderr]     Checking term v0.5.1
Dec 18 18:38:01.064 INFO [stderr]     Checking crossbeam-epoch v0.4.3
Dec 18 18:38:02.376 INFO [stderr]     Checking rand v0.4.3
Dec 18 18:38:02.376 INFO [stderr]     Checking atty v0.2.11
Dec 18 18:38:02.376 INFO [stderr]     Checking termios v0.2.2
Dec 18 18:38:02.704 INFO [stderr]     Checking memmap v0.6.2
Dec 18 18:38:03.420 INFO [stderr]     Checking time v0.1.41
Dec 18 18:38:05.008 INFO [stderr]     Checking num_cpus v1.9.0
Dec 18 18:38:05.738 INFO [stderr]    Compiling rustc_version v0.2.3
Dec 18 18:38:06.735 INFO [stderr]     Checking clap v2.32.0
Dec 18 18:38:06.772 INFO [stderr]     Checking getch v0.2.0
Dec 18 18:38:07.625 INFO [stderr]     Checking aho-corasick v0.6.9
Dec 18 18:38:07.648 INFO [stderr]     Checking parking_lot_core v0.2.14
Dec 18 18:38:08.480 INFO [stderr]    Compiling rand_chacha v0.1.0
Dec 18 18:38:08.660 INFO [stderr]    Compiling rand_pcg v0.1.1
Dec 18 18:38:09.397 INFO [stderr]    Compiling rand v0.6.1
Dec 18 18:38:11.548 INFO [stderr]     Checking parking_lot v0.5.5
Dec 18 18:38:13.186 INFO [stderr]    Compiling quote v0.6.10
Dec 18 18:38:16.836 INFO [stderr]     Checking crossbeam-channel v0.1.3
Dec 18 18:38:17.268 INFO [stderr]    Compiling syn v0.15.23
Dec 18 18:38:22.908 INFO [stderr]     Checking tempfile v3.0.5
Dec 18 18:38:23.270 INFO [stderr]     Checking ctrlc v3.1.1
Dec 18 18:38:30.273 INFO [stderr]    Compiling structopt-derive v0.2.14
Dec 18 18:38:33.373 INFO [stderr]     Checking structopt v0.2.14
Dec 18 18:38:33.787 INFO [stderr]     Checking amber v0.5.1 (/opt/crater/workdir)
Dec 18 18:38:37.606 INFO [stderr] warning: unused import: `std::path::PathBuf`
Dec 18 18:38:37.606 INFO [stderr]  --> benches/path_finder.rs:7:5
Dec 18 18:38:37.606 INFO [stderr]   |
Dec 18 18:38:37.606 INFO [stderr] 7 | use std::path::PathBuf;
Dec 18 18:38:37.606 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 18:38:37.606 INFO [stderr]   |
Dec 18 18:38:37.606 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 18:38:37.606 INFO [stderr] 
Dec 18 18:38:37.606 INFO [stderr] warning: unused import: `test::Bencher`
Dec 18 18:38:37.606 INFO [stderr]  --> benches/path_finder.rs:8:5
Dec 18 18:38:37.606 INFO [stderr]   |
Dec 18 18:38:37.606 INFO [stderr] 8 | use test::Bencher;
Dec 18 18:38:37.606 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 18:38:37.606 INFO [stderr] 
Dec 18 18:38:38.390 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 18:38:38.390 INFO [stderr]  --> src/ambr.rs:7:1
Dec 18 18:38:38.390 INFO [stderr]   |
Dec 18 18:38:38.390 INFO [stderr] 7 | #[macro_use]
Dec 18 18:38:38.390 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 18:38:38.390 INFO [stderr]   |
Dec 18 18:38:38.390 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 18:38:38.390 INFO [stderr] 
Dec 18 18:38:38.400 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 18:38:38.400 INFO [stderr]  --> src/ambs.rs:7:1
Dec 18 18:38:38.400 INFO [stderr]   |
Dec 18 18:38:38.400 INFO [stderr] 7 | #[macro_use]
Dec 18 18:38:38.400 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 18:38:38.400 INFO [stderr]   |
Dec 18 18:38:38.400 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 18:38:38.400 INFO [stderr] 
Dec 18 18:38:38.604 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 18:38:38.604 INFO [stderr]  --> src/ambr.rs:7:1
Dec 18 18:38:38.604 INFO [stderr]   |
Dec 18 18:38:38.604 INFO [stderr] 7 | #[macro_use]
Dec 18 18:38:38.604 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 18:38:38.620 INFO [stderr]   |
Dec 18 18:38:38.620 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 18:38:38.620 INFO [stderr] 
Dec 18 18:38:38.740 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 18:38:38.740 INFO [stderr]  --> src/ambs.rs:7:1
Dec 18 18:38:38.741 INFO [stderr]   |
Dec 18 18:38:38.741 INFO [stderr] 7 | #[macro_use]
Dec 18 18:38:38.748 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 18:38:38.748 INFO [stderr]   |
Dec 18 18:38:38.748 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 18:38:38.748 INFO [stderr] 
Dec 18 18:38:39.080 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.82s
Dec 18 18:38:39.638 INFO running `"docker" "inspect" "b32e4a685d898bcc7f8fe438634d608eeb792c47a383f389dbf0574a5c466144"`
Dec 18 18:38:39.911 INFO running `"docker" "rm" "-f" "b32e4a685d898bcc7f8fe438634d608eeb792c47a383f389dbf0574a5c466144"`
Dec 18 18:38:40.106 INFO [stdout] b32e4a685d898bcc7f8fe438634d608eeb792c47a383f389dbf0574a5c466144