[INFO] updating cached repository dwallach1/Spell-Checker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dwallach1/Spell-Checker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dwallach1/Spell-Checker" "work/ex/beta-1.37-6/sources/1.36.0/gh/dwallach1/Spell-Checker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dwallach1/Spell-Checker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dwallach1/Spell-Checker" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwallach1/Spell-Checker"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwallach1/Spell-Checker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 21ceaec76b202443107aa3787e18957b7ecd6908
[INFO] sha for GitHub repo dwallach1/Spell-Checker: 21ceaec76b202443107aa3787e18957b7ecd6908
[INFO] validating manifest of dwallach1/Spell-Checker on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dwallach1/Spell-Checker on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dwallach1/Spell-Checker
[INFO] finished frobbing dwallach1/Spell-Checker
[INFO] frobbed toml for dwallach1/Spell-Checker written to work/ex/beta-1.37-6/sources/1.36.0/gh/dwallach1/Spell-Checker/Cargo.toml
[INFO] started frobbing dwallach1/Spell-Checker
[INFO] finished frobbing dwallach1/Spell-Checker
[INFO] frobbed toml for dwallach1/Spell-Checker written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwallach1/Spell-Checker/Cargo.toml
[INFO] crate dwallach1/Spell-Checker already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing dwallach1/Spell-Checker against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwallach1/Spell-Checker:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] b29de0f0258685bb67151b9d55923ddb46fcc6126fecb29b96135b08c6607222
[INFO] running `"docker" "start" "-a" "b29de0f0258685bb67151b9d55923ddb46fcc6126fecb29b96135b08c6607222"`
[INFO] [stderr]    Compiling hw2 v0.1.0 (/opt/crater/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 1.90s
[INFO] running `"docker" "inspect" "b29de0f0258685bb67151b9d55923ddb46fcc6126fecb29b96135b08c6607222"`
[INFO] running `"docker" "rm" "-f" "b29de0f0258685bb67151b9d55923ddb46fcc6126fecb29b96135b08c6607222"`
[INFO] [stdout] b29de0f0258685bb67151b9d55923ddb46fcc6126fecb29b96135b08c6607222
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwallach1/Spell-Checker:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4cb867da01fe532ce866ee0d8ba57ee116d945189fb122096b9027ce11868345
[INFO] running `"docker" "start" "-a" "4cb867da01fe532ce866ee0d8ba57ee116d945189fb122096b9027ce11868345"`
[INFO] [stderr]    Compiling hw2 v0.1.0 (/opt/crater/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 2.01s
[INFO] running `"docker" "inspect" "4cb867da01fe532ce866ee0d8ba57ee116d945189fb122096b9027ce11868345"`
[INFO] running `"docker" "rm" "-f" "4cb867da01fe532ce866ee0d8ba57ee116d945189fb122096b9027ce11868345"`
[INFO] [stdout] 4cb867da01fe532ce866ee0d8ba57ee116d945189fb122096b9027ce11868345
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dwallach1/Spell-Checker:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 6d0e0b6122c4531a1c8f6bad083dc5eae5736091ab8ff61eeb1fe2bc353cd05b
[INFO] running `"docker" "start" "-a" "6d0e0b6122c4531a1c8f6bad083dc5eae5736091ab8ff61eeb1fe2bc353cd05b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hw2-03d7534c8cfff49e
[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 ... 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_choice ... 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" "6d0e0b6122c4531a1c8f6bad083dc5eae5736091ab8ff61eeb1fe2bc353cd05b"`
[INFO] running `"docker" "rm" "-f" "6d0e0b6122c4531a1c8f6bad083dc5eae5736091ab8ff61eeb1fe2bc353cd05b"`
[INFO] [stdout] 6d0e0b6122c4531a1c8f6bad083dc5eae5736091ab8ff61eeb1fe2bc353cd05b