[INFO] crate prefix-tree 0.1.0 is already in cache
[INFO] extracting crate prefix-tree 0.1.0 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/prefix-tree/0.1.0
[INFO] extracting crate prefix-tree 0.1.0 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/prefix-tree/0.1.0
[INFO] validating manifest of prefix-tree-0.1.0 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of prefix-tree-0.1.0 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/prefix-tree/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing prefix-tree-0.1.0 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] fb9dcf540b7354bfa9ce194ac40399dd390689bf44c8f2d53726370573ec03cb
[INFO] running `"docker" "start" "-a" "fb9dcf540b7354bfa9ce194ac40399dd390689bf44c8f2d53726370573ec03cb"`
[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" "fb9dcf540b7354bfa9ce194ac40399dd390689bf44c8f2d53726370573ec03cb"`
[INFO] running `"docker" "rm" "-f" "fb9dcf540b7354bfa9ce194ac40399dd390689bf44c8f2d53726370573ec03cb"`
[INFO] [stdout] fb9dcf540b7354bfa9ce194ac40399dd390689bf44c8f2d53726370573ec03cb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5121dfdcf4f2092de2f0f1c7efb877dcd10f059cd77370147d4c9d333f295b67
[INFO] running `"docker" "start" "-a" "5121dfdcf4f2092de2f0f1c7efb877dcd10f059cd77370147d4c9d333f295b67"`
[INFO] [stderr]    Compiling prefix-tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "5121dfdcf4f2092de2f0f1c7efb877dcd10f059cd77370147d4c9d333f295b67"`
[INFO] running `"docker" "rm" "-f" "5121dfdcf4f2092de2f0f1c7efb877dcd10f059cd77370147d4c9d333f295b67"`
[INFO] [stdout] 5121dfdcf4f2092de2f0f1c7efb877dcd10f059cd77370147d4c9d333f295b67
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] d6bd8e42e680e4be4ff716e238e6f0891f6ddf8c861d7cc35f68e183c50ab9d6
[INFO] running `"docker" "start" "-a" "d6bd8e42e680e4be4ff716e238e6f0891f6ddf8c861d7cc35f68e183c50ab9d6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prefix_tree-c59a8ee8d94859a3
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::test_common_prefix_bytes ... ok
[INFO] [stdout] test tests::test_find_sibling ... ok
[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_empty ... ok
[INFO] [stdout] test tests::test_find_simple ... ok
[INFO] [stdout] test tests::test_find_child ... ok
[INFO] [stdout] test tests::test_insert_append ... ok
[INFO] [stdout] test tests::test_insert_empty ... ok
[INFO] [stdout] test tests::test_insert_sibling ... ok
[INFO] [stdout] test tests::test_common_prefix_short ... ok
[INFO] [stdout] test tests::test_insert_split ... ok
[INFO] [stdout] test tests::test_common_prefix_empty ... ok
[INFO] [stderr]    Doc-tests prefix-tree
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "d6bd8e42e680e4be4ff716e238e6f0891f6ddf8c861d7cc35f68e183c50ab9d6"`
[INFO] running `"docker" "rm" "-f" "d6bd8e42e680e4be4ff716e238e6f0891f6ddf8c861d7cc35f68e183c50ab9d6"`
[INFO] [stdout] d6bd8e42e680e4be4ff716e238e6f0891f6ddf8c861d7cc35f68e183c50ab9d6