[INFO] updating cached repository https://github.com/dwallach1/Spell-Checker
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 21ceaec76b202443107aa3787e18957b7ecd6908
[INFO] testing dwallach1/Spell-Checker against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdwallach1%2FSpell-Checker" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dwallach1/Spell-Checker on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dwallach1/Spell-Checker
[INFO] finished tweaking git repo https://github.com/dwallach1/Spell-Checker
[INFO] tweaked toml for git repo https://github.com/dwallach1/Spell-Checker written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dwallach1/Spell-Checker already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 47b0bf7c0e33fff9f9d13d22db32bba87c2fd2f55134f4eb9e730a7a0111c5a3
[INFO] running `"docker" "start" "-a" "47b0bf7c0e33fff9f9d13d22db32bba87c2fd2f55134f4eb9e730a7a0111c5a3"`
[INFO] [stderr]    Compiling hw2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Write`, `stdin`, `stdout`
[INFO] [stderr]  --> src/spell_checker.rs:3:41
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Read, BufReader, BufRead, stdin, Write, stdout};
[INFO] [stderr]   |                                         ^^^^^  ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `printer`
[INFO] [stderr]   --> src/spell_checker.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn printer(cache: &Trie, level: usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `"docker" "inspect" "47b0bf7c0e33fff9f9d13d22db32bba87c2fd2f55134f4eb9e730a7a0111c5a3"`
[INFO] running `"docker" "rm" "-f" "47b0bf7c0e33fff9f9d13d22db32bba87c2fd2f55134f4eb9e730a7a0111c5a3"`
[INFO] [stdout] 47b0bf7c0e33fff9f9d13d22db32bba87c2fd2f55134f4eb9e730a7a0111c5a3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8f1ac9fefc690f45d707196c4090461ab44162d7d3a937c8130099e5ca9a6c13
[INFO] running `"docker" "start" "-a" "8f1ac9fefc690f45d707196c4090461ab44162d7d3a937c8130099e5ca9a6c13"`
[INFO] [stderr]    Compiling hw2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Write`, `stdin`, `stdout`
[INFO] [stderr]  --> src/spell_checker.rs:3:41
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{Read, BufReader, BufRead, stdin, Write, stdout};
[INFO] [stderr]   |                                         ^^^^^  ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `printer`
[INFO] [stderr]   --> src/spell_checker.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn printer(cache: &Trie, level: usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `"docker" "inspect" "8f1ac9fefc690f45d707196c4090461ab44162d7d3a937c8130099e5ca9a6c13"`
[INFO] running `"docker" "rm" "-f" "8f1ac9fefc690f45d707196c4090461ab44162d7d3a937c8130099e5ca9a6c13"`
[INFO] [stdout] 8f1ac9fefc690f45d707196c4090461ab44162d7d3a937c8130099e5ca9a6c13
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 7838d046590105376466fe388b04970e8c8a9db98ef8ea223aa99ed3a2f547f2
[INFO] running `"docker" "start" "-a" "7838d046590105376466fe388b04970e8c8a9db98ef8ea223aa99ed3a2f547f2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hw2-136d634697003a7b
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test file_loading_tests::assert_load ... ok
[INFO] [stdout] test spell_checker::dict_tests::assert_candidates ... ok
[INFO] [stdout] test spell_checker::dict_tests::assert_counts ... ok
[INFO] [stdout] test spell_checker::dict_tests::assert_probability ... ok
[INFO] [stdout] test spell_checker::dict_tests::assert_correct_choice ... ok
[INFO] [stdout] test spell_checker::dict_tests::assert_wordp ... ok
[INFO] [stdout] test spell_checker::dict_tests::assert_slices ... ok
[INFO] [stdout] test spell_checker::dict_tests::assert_correct ... ok
[INFO] [stdout] test file_loading_tests::assert_panic_bad_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7838d046590105376466fe388b04970e8c8a9db98ef8ea223aa99ed3a2f547f2"`
[INFO] running `"docker" "rm" "-f" "7838d046590105376466fe388b04970e8c8a9db98ef8ea223aa99ed3a2f547f2"`
[INFO] [stdout] 7838d046590105376466fe388b04970e8c8a9db98ef8ea223aa99ed3a2f547f2