[INFO] updating cached repository cecton/find-word
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cecton/find-word
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cecton/find-word" "work/ex/beta-1.38-1/sources/1.37.0/gh/cecton/find-word"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cecton/find-word'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cecton/find-word" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cecton/find-word"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cecton/find-word'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 76e819476b7fb8d61eff97bedbca28bd1201cf65
[INFO] sha for GitHub repo cecton/find-word: 76e819476b7fb8d61eff97bedbca28bd1201cf65
[INFO] validating manifest of cecton/find-word on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cecton/find-word on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cecton/find-word
[INFO] finished frobbing cecton/find-word
[INFO] frobbed toml for cecton/find-word written to work/ex/beta-1.38-1/sources/1.37.0/gh/cecton/find-word/Cargo.toml
[INFO] started frobbing cecton/find-word
[INFO] finished frobbing cecton/find-word
[INFO] frobbed toml for cecton/find-word written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cecton/find-word/Cargo.toml
[INFO] crate cecton/find-word already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cecton/find-word against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cecton/find-word:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5090e1b521867cd703d523ea5a7451a1b11e7a620df026f571b43a70a69c2e3e
[INFO] running `"docker" "start" "-a" "5090e1b521867cd703d523ea5a7451a1b11e7a620df026f571b43a70a69c2e3e"`
[INFO] [stderr]    Compiling find-word v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `word`
[INFO] [stderr]   --> src/main.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 |             for (word, rest) in data.iter_mut() {
[INFO] [stderr]    |                  ^^^^ help: consider prefixing with an underscore: `_word`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `find_word`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn find_word(&self, word: &str) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "5090e1b521867cd703d523ea5a7451a1b11e7a620df026f571b43a70a69c2e3e"`
[INFO] running `"docker" "rm" "-f" "5090e1b521867cd703d523ea5a7451a1b11e7a620df026f571b43a70a69c2e3e"`
[INFO] [stdout] 5090e1b521867cd703d523ea5a7451a1b11e7a620df026f571b43a70a69c2e3e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cecton/find-word:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 20a60eb752412fa73adc07d0d3212746f2525e26fac902ec96c35d3b50a0fe9b
[INFO] running `"docker" "start" "-a" "20a60eb752412fa73adc07d0d3212746f2525e26fac902ec96c35d3b50a0fe9b"`
[INFO] [stderr]    Compiling find-word v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `word`
[INFO] [stderr]   --> src/main.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 |             for (word, rest) in data.iter_mut() {
[INFO] [stderr]    |                  ^^^^ help: consider prefixing with an underscore: `_word`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "20a60eb752412fa73adc07d0d3212746f2525e26fac902ec96c35d3b50a0fe9b"`
[INFO] running `"docker" "rm" "-f" "20a60eb752412fa73adc07d0d3212746f2525e26fac902ec96c35d3b50a0fe9b"`
[INFO] [stdout] 20a60eb752412fa73adc07d0d3212746f2525e26fac902ec96c35d3b50a0fe9b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cecton/find-word:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] e95f1f89f50a59b09e25e1b1a99ed6f9f60ffb6922c435dc2c1f079247d4ff78
[INFO] running `"docker" "start" "-a" "e95f1f89f50a59b09e25e1b1a99ed6f9f60ffb6922c435dc2c1f079247d4ff78"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/find_word-4d0b5b933a14ebd4
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_find_word ... ok
[INFO] [stdout] test test_read_dict ... ok
[INFO] [stdout] test test_find_word_from_letters ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e95f1f89f50a59b09e25e1b1a99ed6f9f60ffb6922c435dc2c1f079247d4ff78"`
[INFO] running `"docker" "rm" "-f" "e95f1f89f50a59b09e25e1b1a99ed6f9f60ffb6922c435dc2c1f079247d4ff78"`
[INFO] [stdout] e95f1f89f50a59b09e25e1b1a99ed6f9f60ffb6922c435dc2c1f079247d4ff78