[INFO] updating cached repository SimonImbrogno/words
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SimonImbrogno/words
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SimonImbrogno/words" "work/ex/beta-1.37-6/sources/1.36.0/gh/SimonImbrogno/words"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/SimonImbrogno/words'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SimonImbrogno/words" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SimonImbrogno/words"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SimonImbrogno/words'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c42ab25aa3857d29356a6dbd51b6ce5de12f8129
[INFO] sha for GitHub repo SimonImbrogno/words: c42ab25aa3857d29356a6dbd51b6ce5de12f8129
[INFO] validating manifest of SimonImbrogno/words 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 SimonImbrogno/words 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 SimonImbrogno/words
[INFO] finished frobbing SimonImbrogno/words
[INFO] frobbed toml for SimonImbrogno/words written to work/ex/beta-1.37-6/sources/1.36.0/gh/SimonImbrogno/words/Cargo.toml
[INFO] started frobbing SimonImbrogno/words
[INFO] finished frobbing SimonImbrogno/words
[INFO] frobbed toml for SimonImbrogno/words written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SimonImbrogno/words/Cargo.toml
[INFO] crate SimonImbrogno/words 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing SimonImbrogno/words against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/SimonImbrogno/words:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 1920142dc6042f41640af58b3d85309f3c1f48e8c2ad532bf2822189c9478bd3
[INFO] running `"docker" "start" "-a" "1920142dc6042f41640af58b3d85309f3c1f48e8c2ad532bf2822189c9478bd3"`
[INFO] [stderr]    Compiling words v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:61:7
[INFO] [stderr]    |
[INFO] [stderr] 61 |   for i in 0..1000 {
[INFO] [stderr]    |       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:37
[INFO] [stderr]    |
[INFO] [stderr] 59 |   for word in trie.get_contents() { mt.record(&word); }
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `"docker" "inspect" "1920142dc6042f41640af58b3d85309f3c1f48e8c2ad532bf2822189c9478bd3"`
[INFO] running `"docker" "rm" "-f" "1920142dc6042f41640af58b3d85309f3c1f48e8c2ad532bf2822189c9478bd3"`
[INFO] [stdout] 1920142dc6042f41640af58b3d85309f3c1f48e8c2ad532bf2822189c9478bd3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/SimonImbrogno/words:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e4e81f2906e6647f5dad2c81518152d949262e791c6674ee22d564d477a2b02f
[INFO] running `"docker" "start" "-a" "e4e81f2906e6647f5dad2c81518152d949262e791c6674ee22d564d477a2b02f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling words v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:61:7
[INFO] [stderr]    |
[INFO] [stderr] 61 |   for i in 0..1000 {
[INFO] [stderr]    |       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:37
[INFO] [stderr]    |
[INFO] [stderr] 59 |   for word in trie.get_contents() { mt.record(&word); }
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "e4e81f2906e6647f5dad2c81518152d949262e791c6674ee22d564d477a2b02f"`
[INFO] running `"docker" "rm" "-f" "e4e81f2906e6647f5dad2c81518152d949262e791c6674ee22d564d477a2b02f"`
[INFO] [stdout] e4e81f2906e6647f5dad2c81518152d949262e791c6674ee22d564d477a2b02f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/SimonImbrogno/words:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 8456025db2ea1fefa34a3b975820743e2b47b361d5cb07ca79a2c801edf2a47c
[INFO] running `"docker" "start" "-a" "8456025db2ea1fefa34a3b975820743e2b47b361d5cb07ca79a2c801edf2a47c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/words-f2a4557104ac4e48
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8456025db2ea1fefa34a3b975820743e2b47b361d5cb07ca79a2c801edf2a47c"`
[INFO] running `"docker" "rm" "-f" "8456025db2ea1fefa34a3b975820743e2b47b361d5cb07ca79a2c801edf2a47c"`
[INFO] [stdout] 8456025db2ea1fefa34a3b975820743e2b47b361d5cb07ca79a2c801edf2a47c