[INFO] crate trie_tree 0.1.2 is already in cache
[INFO] extracting crate trie_tree 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/trie_tree/0.1.2
[INFO] extracting crate trie_tree 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/trie_tree/0.1.2
[INFO] validating manifest of trie_tree-0.1.2 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 trie_tree-0.1.2 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 trie_tree-0.1.2
[INFO] finished frobbing trie_tree-0.1.2
[INFO] frobbed toml for trie_tree-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/trie_tree/0.1.2/Cargo.toml
[INFO] started frobbing trie_tree-0.1.2
[INFO] finished frobbing trie_tree-0.1.2
[INFO] frobbed toml for trie_tree-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/trie_tree/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing trie_tree-0.1.2 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/trie_tree/0.1.2:/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] 4203bb68371740183cfeb70c676806eac3c63072dd840c476a38db788b1c4f63
[INFO] running `"docker" "start" "-a" "4203bb68371740183cfeb70c676806eac3c63072dd840c476a38db788b1c4f63"`
[INFO] [stderr]    Compiling trie_tree v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Eq`
[INFO] [stderr]  --> src/trie/word.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::cmp::Eq;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/trie/word.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/trie/word.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn new() -> WordTrie {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert_words`
[INFO] [stderr]   --> src/trie/word.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn insert_words(&self, words: &str, target: &str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `split_words`
[INFO] [stderr]   --> src/trie/word.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn split_words(words: &str) -> Vec<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/trie/word.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn insert(&self, words: &[String], target: String) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_leaf`
[INFO] [stderr]   --> src/trie/word.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn get_leaf(&self, words: &[String]) -> Leaf<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "4203bb68371740183cfeb70c676806eac3c63072dd840c476a38db788b1c4f63"`
[INFO] running `"docker" "rm" "-f" "4203bb68371740183cfeb70c676806eac3c63072dd840c476a38db788b1c4f63"`
[INFO] [stdout] 4203bb68371740183cfeb70c676806eac3c63072dd840c476a38db788b1c4f63
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/trie_tree/0.1.2:/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] 05964a7de53478dab1545f2b25a7bcbbe5841e793bdea52224f53f279b7e1f6a
[INFO] running `"docker" "start" "-a" "05964a7de53478dab1545f2b25a7bcbbe5841e793bdea52224f53f279b7e1f6a"`
[INFO] [stderr]    Compiling trie_tree v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Eq`
[INFO] [stderr]  --> src/trie/word.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::cmp::Eq;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/trie/word.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_leaf`
[INFO] [stderr]   --> src/trie/word.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn get_leaf(&self, words: &[String]) -> Leaf<String> {
[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" "05964a7de53478dab1545f2b25a7bcbbe5841e793bdea52224f53f279b7e1f6a"`
[INFO] running `"docker" "rm" "-f" "05964a7de53478dab1545f2b25a7bcbbe5841e793bdea52224f53f279b7e1f6a"`
[INFO] [stdout] 05964a7de53478dab1545f2b25a7bcbbe5841e793bdea52224f53f279b7e1f6a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/trie_tree/0.1.2:/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] 3c6360d8bb3353e03bf0dd506fb272b84a396b4d5420cb3644932ed1df85fc9e
[INFO] running `"docker" "start" "-a" "3c6360d8bb3353e03bf0dd506fb272b84a396b4d5420cb3644932ed1df85fc9e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/trie_tree-eb67a9d1bc973dd3
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test trie::basic::name ... ok
[INFO] [stdout] test trie::word::test_word ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trie_tree
[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" "3c6360d8bb3353e03bf0dd506fb272b84a396b4d5420cb3644932ed1df85fc9e"`
[INFO] running `"docker" "rm" "-f" "3c6360d8bb3353e03bf0dd506fb272b84a396b4d5420cb3644932ed1df85fc9e"`
[INFO] [stdout] 3c6360d8bb3353e03bf0dd506fb272b84a396b4d5420cb3644932ed1df85fc9e