[INFO] crate prefix-tree 0.1.0 is already in cache
[INFO] extracting crate prefix-tree 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/prefix-tree/0.1.0
[INFO] extracting crate prefix-tree 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/prefix-tree/0.1.0
[INFO] validating manifest of prefix-tree-0.1.0 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 prefix-tree-0.1.0 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 prefix-tree-0.1.0
[INFO] finished frobbing prefix-tree-0.1.0
[INFO] frobbed toml for prefix-tree-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/prefix-tree/0.1.0/Cargo.toml
[INFO] started frobbing prefix-tree-0.1.0
[INFO] finished frobbing prefix-tree-0.1.0
[INFO] frobbed toml for prefix-tree-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/prefix-tree/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 prefix-tree-0.1.0 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/prefix-tree/0.1.0:/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] 13d6107cb88080b6443c49a45828effbed8380a1f4591f838596488c3b3a383d
[INFO] running `"docker" "start" "-a" "13d6107cb88080b6443c49a45828effbed8380a1f4591f838596488c3b3a383d"`
[INFO] [stderr]    Compiling prefix-tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "13d6107cb88080b6443c49a45828effbed8380a1f4591f838596488c3b3a383d"`
[INFO] running `"docker" "rm" "-f" "13d6107cb88080b6443c49a45828effbed8380a1f4591f838596488c3b3a383d"`
[INFO] [stdout] 13d6107cb88080b6443c49a45828effbed8380a1f4591f838596488c3b3a383d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/prefix-tree/0.1.0:/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] 40648cf00e5c29bf44ebc83c7c58fe29cad17e8a4adca0dbf44c735c26f489a6
[INFO] running `"docker" "start" "-a" "40648cf00e5c29bf44ebc83c7c58fe29cad17e8a4adca0dbf44c735c26f489a6"`
[INFO] [stderr]    Compiling prefix-tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "40648cf00e5c29bf44ebc83c7c58fe29cad17e8a4adca0dbf44c735c26f489a6"`
[INFO] running `"docker" "rm" "-f" "40648cf00e5c29bf44ebc83c7c58fe29cad17e8a4adca0dbf44c735c26f489a6"`
[INFO] [stdout] 40648cf00e5c29bf44ebc83c7c58fe29cad17e8a4adca0dbf44c735c26f489a6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/prefix-tree/0.1.0:/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] 4ab2da2af3f652416393cf9dea577c6692adc1707bae724186473f40b2ab360e
[INFO] running `"docker" "start" "-a" "4ab2da2af3f652416393cf9dea577c6692adc1707bae724186473f40b2ab360e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prefix_tree-96b747dfd012b666
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::test_find_shorter ... ok
[INFO] [stdout] test tests::test_find_missing ... ok
[INFO] [stdout] test tests::test_find_longer ... ok
[INFO] [stdout] test tests::test_find_child ... ok
[INFO] [stdout] test tests::test_common_prefix_short ... ok
[INFO] [stdout] test tests::test_find_sibling ... ok
[INFO] [stdout] test tests::test_find_simple ... ok
[INFO] [stdout] test tests::test_common_prefix_empty ... ok
[INFO] [stdout] test tests::test_insert_append ... ok
[INFO] [stdout] test tests::test_insert_sibling ... ok
[INFO] [stdout] test tests::test_insert_empty ... ok
[INFO] [stdout] test tests::test_insert_split ... ok
[INFO] [stdout] test tests::test_find_empty ... ok
[INFO] [stdout] test tests::test_common_prefix_bytes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prefix-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" "4ab2da2af3f652416393cf9dea577c6692adc1707bae724186473f40b2ab360e"`
[INFO] running `"docker" "rm" "-f" "4ab2da2af3f652416393cf9dea577c6692adc1707bae724186473f40b2ab360e"`
[INFO] [stdout] 4ab2da2af3f652416393cf9dea577c6692adc1707bae724186473f40b2ab360e