[INFO] updating cached repository drnielsen/dictionary-word-tree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/drnielsen/dictionary-word-tree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/drnielsen/dictionary-word-tree" "work/ex/beta-1.38-1/sources/1.37.0/gh/drnielsen/dictionary-word-tree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/drnielsen/dictionary-word-tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/drnielsen/dictionary-word-tree" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/drnielsen/dictionary-word-tree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/drnielsen/dictionary-word-tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e004d9602dfd44ca3818b7508fbb1e337c6c8fb
[INFO] sha for GitHub repo drnielsen/dictionary-word-tree: 1e004d9602dfd44ca3818b7508fbb1e337c6c8fb
[INFO] validating manifest of drnielsen/dictionary-word-tree 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 drnielsen/dictionary-word-tree 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 drnielsen/dictionary-word-tree
[INFO] finished frobbing drnielsen/dictionary-word-tree
[INFO] frobbed toml for drnielsen/dictionary-word-tree written to work/ex/beta-1.38-1/sources/1.37.0/gh/drnielsen/dictionary-word-tree/Cargo.toml
[INFO] started frobbing drnielsen/dictionary-word-tree
[INFO] finished frobbing drnielsen/dictionary-word-tree
[INFO] frobbed toml for drnielsen/dictionary-word-tree written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/drnielsen/dictionary-word-tree/Cargo.toml
[INFO] crate drnielsen/dictionary-word-tree 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 drnielsen/dictionary-word-tree 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/drnielsen/dictionary-word-tree:/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] fb5c0f3cc3fa72434f625c52b4eae2d8c45500188b09cdb2b1fb0187bb7cb7fa
[INFO] running `"docker" "start" "-a" "fb5c0f3cc3fa72434f625c52b4eae2d8c45500188b09cdb2b1fb0187bb7cb7fa"`
[INFO] [stderr]    Compiling dictionary-word-tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut pipeline: Box<Iterator<Item=word_lineage::Lineage>> = Box::new(lineage_list.iter().map(|x| word_lineage::Lineage::new().init(x)));
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=word_lineage::Lineage>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `"docker" "inspect" "fb5c0f3cc3fa72434f625c52b4eae2d8c45500188b09cdb2b1fb0187bb7cb7fa"`
[INFO] running `"docker" "rm" "-f" "fb5c0f3cc3fa72434f625c52b4eae2d8c45500188b09cdb2b1fb0187bb7cb7fa"`
[INFO] [stdout] fb5c0f3cc3fa72434f625c52b4eae2d8c45500188b09cdb2b1fb0187bb7cb7fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/drnielsen/dictionary-word-tree:/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] 505a6710a1e64efcc89d8e532d89977a0d4f4c267d812d3b8b2d00bb26905131
[INFO] running `"docker" "start" "-a" "505a6710a1e64efcc89d8e532d89977a0d4f4c267d812d3b8b2d00bb26905131"`
[INFO] [stderr]    Compiling dictionary-word-tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut pipeline: Box<Iterator<Item=word_lineage::Lineage>> = Box::new(lineage_list.iter().map(|x| word_lineage::Lineage::new().init(x)));
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=word_lineage::Lineage>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "505a6710a1e64efcc89d8e532d89977a0d4f4c267d812d3b8b2d00bb26905131"`
[INFO] running `"docker" "rm" "-f" "505a6710a1e64efcc89d8e532d89977a0d4f4c267d812d3b8b2d00bb26905131"`
[INFO] [stdout] 505a6710a1e64efcc89d8e532d89977a0d4f4c267d812d3b8b2d00bb26905131
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/drnielsen/dictionary-word-tree:/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] 4fd65e18be07ff1c83f27337543259b2cb70193cc9479c226485c0626e7fc92d
[INFO] running `"docker" "start" "-a" "4fd65e18be07ff1c83f27337543259b2cb70193cc9479c226485c0626e7fc92d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dictionary_word_tree-80f912ad7bfa54a0
[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" "4fd65e18be07ff1c83f27337543259b2cb70193cc9479c226485c0626e7fc92d"`
[INFO] running `"docker" "rm" "-f" "4fd65e18be07ff1c83f27337543259b2cb70193cc9479c226485c0626e7fc92d"`
[INFO] [stdout] 4fd65e18be07ff1c83f27337543259b2cb70193cc9479c226485c0626e7fc92d