Dec 05 16:48:16.131 INFO checking amber-0.5.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 16:48:16.131 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 16:48:16.662 INFO [stdout] d26d28fac46bb7686ce0fcb7b940db4e6b5b448881d0802bd8ce0905cae7824d
Dec 05 16:48:16.664 INFO running `"docker" "start" "-a" "d26d28fac46bb7686ce0fcb7b940db4e6b5b448881d0802bd8ce0905cae7824d"`
Dec 05 16:48:18.639 INFO [stderr] usermod: no changes
Dec 05 16:48:18.871 INFO [stderr]    Compiling semver-parser v0.7.0
Dec 05 16:48:18.871 INFO [stderr]    Compiling libc v0.2.44
Dec 05 16:48:18.871 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 05 16:48:18.871 INFO [stderr]     Checking void v1.0.2
Dec 05 16:48:18.871 INFO [stderr]    Compiling nix v0.11.0
Dec 05 16:48:18.871 INFO [stderr]     Checking rand_core v0.3.0
Dec 05 16:48:18.901 INFO [stderr]    Compiling unicode-segmentation v1.2.1
Dec 05 16:48:18.901 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 05 16:48:21.123 INFO [stderr]     Checking nodrop v0.1.13
Dec 05 16:48:21.123 INFO [stderr]     Checking cfg-if v0.1.6
Dec 05 16:48:21.661 INFO [stderr]     Checking unicode-width v0.1.5
Dec 05 16:48:21.771 INFO [stderr]     Checking ansi_term v0.11.0
Dec 05 16:48:21.850 INFO [stderr]     Checking strsim v0.7.0
Dec 05 16:48:22.543 INFO [stderr]     Checking scopeguard v0.3.3
Dec 05 16:48:22.728 INFO [stderr]     Checking memoffset v0.2.1
Dec 05 16:48:23.083 INFO [stderr]    Compiling regex v1.1.0
Dec 05 16:48:23.083 INFO [stderr]     Checking ucd-util v0.1.3
Dec 05 16:48:23.195 INFO [stderr]     Checking lazy_static v1.2.0
Dec 05 16:48:24.771 INFO [stderr]     Checking bitflags v1.0.4
Dec 05 16:48:25.443 INFO [stderr]     Checking vec_map v0.8.1
Dec 05 16:48:25.609 INFO [stderr]     Checking byteorder v1.2.7
Dec 05 16:48:26.128 INFO [stderr]     Checking utf8-ranges v1.0.2
Dec 05 16:48:26.148 INFO [stderr]     Checking glob v0.2.11
Dec 05 16:48:27.056 INFO [stderr]     Checking rlibc v1.0.0
Dec 05 16:48:27.475 INFO [stderr]    Compiling memchr v2.1.1
Dec 05 16:48:27.691 INFO [stderr]     Checking unreachable v1.0.0
Dec 05 16:48:29.243 INFO [stderr]     Checking owning_ref v0.3.3
Dec 05 16:48:29.803 INFO [stderr]     Checking crossbeam-utils v0.3.2
Dec 05 16:48:30.063 INFO [stderr]     Checking arrayvec v0.4.8
Dec 05 16:48:30.315 INFO [stderr]     Checking rand_xorshift v0.1.0
Dec 05 16:48:30.943 INFO [stderr]     Checking rand_isaac v0.1.1
Dec 05 16:48:31.791 INFO [stderr]     Checking rand_hc v0.1.0
Dec 05 16:48:32.502 INFO [stderr]     Checking textwrap v0.10.0
Dec 05 16:48:32.807 INFO [stderr]    Compiling heck v0.3.0
Dec 05 16:48:34.323 INFO [stderr]     Checking thread_local v0.3.6
Dec 05 16:48:34.373 INFO [stderr]     Checking regex-syntax v0.6.4
Dec 05 16:48:34.644 INFO [stderr]     Checking smallvec v0.6.7
Dec 05 16:48:34.872 INFO [stderr]    Compiling semver v0.9.0
Dec 05 16:48:35.956 INFO [stderr]     Checking term v0.5.1
Dec 05 16:48:39.980 INFO [stderr]     Checking crossbeam-epoch v0.4.3
Dec 05 16:48:43.593 INFO [stderr]    Compiling rustc_version v0.2.3
Dec 05 16:48:44.736 INFO [stderr]     Checking rand v0.4.3
Dec 05 16:48:44.737 INFO [stderr]     Checking atty v0.2.11
Dec 05 16:48:44.739 INFO [stderr]     Checking termios v0.2.2
Dec 05 16:48:47.099 INFO [stderr]     Checking time v0.1.40
Dec 05 16:48:48.808 INFO [stderr]     Checking num_cpus v1.8.0
Dec 05 16:48:49.616 INFO [stderr]     Checking memmap v0.6.2
Dec 05 16:48:51.847 INFO [stderr]     Checking clap v2.32.0
Dec 05 16:48:53.595 INFO [stderr]     Checking aho-corasick v0.6.9
Dec 05 16:48:54.395 INFO [stderr]     Checking getch v0.2.0
Dec 05 16:48:54.623 INFO [stderr]    Compiling rand_chacha v0.1.0
Dec 05 16:48:54.939 INFO [stderr]    Compiling rand_pcg v0.1.1
Dec 05 16:48:57.471 INFO [stderr]    Compiling rand v0.6.1
Dec 05 16:48:57.751 INFO [stderr]    Compiling quote v0.6.10
Dec 05 16:48:58.423 INFO [stderr]     Checking parking_lot_core v0.2.14
Dec 05 16:49:01.791 INFO [stderr]     Checking parking_lot v0.5.5
Dec 05 16:49:03.466 INFO [stderr]    Compiling syn v0.15.22
Dec 05 16:49:06.131 INFO [stderr]     Checking crossbeam-channel v0.1.3
Dec 05 16:49:16.651 INFO [stderr]     Checking ctrlc v3.1.1
Dec 05 16:49:16.868 INFO [stderr]     Checking tempfile v3.0.5
Dec 05 16:49:25.369 INFO [stderr]    Compiling structopt-derive v0.2.13
Dec 05 16:49:29.515 INFO [stderr]     Checking structopt v0.2.13
Dec 05 16:49:30.700 INFO [stderr]     Checking amber v0.5.1 (/source)
Dec 05 16:49:53.643 INFO [stderr] warning: unused import: `std::path::PathBuf`
Dec 05 16:49:53.643 INFO [stderr]  --> benches/path_finder.rs:7:5
Dec 05 16:49:53.643 INFO [stderr]   |
Dec 05 16:49:53.643 INFO [stderr] 7 | use std::path::PathBuf;
Dec 05 16:49:53.643 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 05 16:49:53.643 INFO [stderr]   |
Dec 05 16:49:53.643 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 16:49:53.643 INFO [stderr] 
Dec 05 16:49:53.643 INFO [stderr] warning: unused import: `test::Bencher`
Dec 05 16:49:53.643 INFO [stderr]  --> benches/path_finder.rs:8:5
Dec 05 16:49:53.643 INFO [stderr]   |
Dec 05 16:49:53.643 INFO [stderr] 8 | use test::Bencher;
Dec 05 16:49:53.643 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 16:49:53.643 INFO [stderr] 
Dec 05 16:49:54.659 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 16:49:54.659 INFO [stderr]  --> src/ambr.rs:7:1
Dec 05 16:49:54.659 INFO [stderr]   |
Dec 05 16:49:54.659 INFO [stderr] 7 | #[macro_use]
Dec 05 16:49:54.659 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 16:49:54.659 INFO [stderr]   |
Dec 05 16:49:54.659 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 16:49:54.659 INFO [stderr] 
Dec 05 16:49:55.306 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 16:49:55.306 INFO [stderr]  --> src/ambs.rs:7:1
Dec 05 16:49:55.306 INFO [stderr]   |
Dec 05 16:49:55.306 INFO [stderr] 7 | #[macro_use]
Dec 05 16:49:55.306 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 16:49:55.306 INFO [stderr]   |
Dec 05 16:49:55.306 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 16:49:55.306 INFO [stderr] 
Dec 05 16:49:55.647 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 16:49:55.647 INFO [stderr]  --> src/ambs.rs:7:1
Dec 05 16:49:55.647 INFO [stderr]   |
Dec 05 16:49:55.647 INFO [stderr] 7 | #[macro_use]
Dec 05 16:49:55.647 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 16:49:55.647 INFO [stderr]   |
Dec 05 16:49:55.647 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 16:49:55.647 INFO [stderr] 
Dec 05 16:49:56.830 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 16:49:56.830 INFO [stderr]  --> src/ambr.rs:7:1
Dec 05 16:49:56.830 INFO [stderr]   |
Dec 05 16:49:56.830 INFO [stderr] 7 | #[macro_use]
Dec 05 16:49:56.830 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 16:49:56.830 INFO [stderr]   |
Dec 05 16:49:56.830 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 16:49:56.830 INFO [stderr] 
Dec 05 16:49:57.099 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
Dec 05 16:49:57.115 INFO [stderr] su: No module specific data is present
Dec 05 16:49:57.613 INFO running `"docker" "inspect" "d26d28fac46bb7686ce0fcb7b940db4e6b5b448881d0802bd8ce0905cae7824d"`
Dec 05 16:49:57.795 INFO running `"docker" "rm" "-f" "d26d28fac46bb7686ce0fcb7b940db4e6b5b448881d0802bd8ce0905cae7824d"`
Dec 05 16:49:58.030 INFO [stdout] d26d28fac46bb7686ce0fcb7b940db4e6b5b448881d0802bd8ce0905cae7824d