[INFO] fetching crate linked-tail-list 0.0.1...
[INFO] extracting crate linked-tail-list 0.0.1 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/linked-tail-list/0.0.1
[INFO] extracting crate linked-tail-list 0.0.1 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/linked-tail-list/0.0.1
[INFO] validating manifest of linked-tail-list-0.0.1 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of linked-tail-list-0.0.1 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing linked-tail-list-0.0.1
[INFO] finished frobbing linked-tail-list-0.0.1
[INFO] frobbed toml for linked-tail-list-0.0.1 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/linked-tail-list/0.0.1/Cargo.toml
[INFO] started frobbing linked-tail-list-0.0.1
[INFO] finished frobbing linked-tail-list-0.0.1
[INFO] frobbed toml for linked-tail-list-0.0.1 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/linked-tail-list/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing linked-tail-list-0.0.1 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/linked-tail-list/0.0.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] ac7dc31c1e94f56b58fe1d1e05597a3da643ef2d346e5859b6eff18d0a280abe
[INFO] running `"docker" "start" "-a" "ac7dc31c1e94f56b58fe1d1e05597a3da643ef2d346e5859b6eff18d0a280abe"`
[INFO] [stderr]    Compiling linked-tail-list v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/lib.rs:358:5
[INFO] [stderr]     |
[INFO] [stderr] 358 |     unsafe {
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "ac7dc31c1e94f56b58fe1d1e05597a3da643ef2d346e5859b6eff18d0a280abe"`
[INFO] running `"docker" "rm" "-f" "ac7dc31c1e94f56b58fe1d1e05597a3da643ef2d346e5859b6eff18d0a280abe"`
[INFO] [stdout] ac7dc31c1e94f56b58fe1d1e05597a3da643ef2d346e5859b6eff18d0a280abe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/linked-tail-list/0.0.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 830b52555accc601a3bfc38bd5bf9d3db0c35497282033e91778486e04c8a093
[INFO] running `"docker" "start" "-a" "830b52555accc601a3bfc38bd5bf9d3db0c35497282033e91778486e04c8a093"`
[INFO] [stderr]    Compiling linked-tail-list v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/lib.rs:358:5
[INFO] [stderr]     |
[INFO] [stderr] 358 |     unsafe {
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "830b52555accc601a3bfc38bd5bf9d3db0c35497282033e91778486e04c8a093"`
[INFO] running `"docker" "rm" "-f" "830b52555accc601a3bfc38bd5bf9d3db0c35497282033e91778486e04c8a093"`
[INFO] [stdout] 830b52555accc601a3bfc38bd5bf9d3db0c35497282033e91778486e04c8a093
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/linked-tail-list/0.0.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 10576e7bb08c9ebf7e8794661080d113da87ed8667b8be5d3e825b9ab6f71807
[INFO] running `"docker" "start" "-a" "10576e7bb08c9ebf7e8794661080d113da87ed8667b8be5d3e825b9ab6f71807"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linked_tail_list-46ddff54d30021a4
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::it_swaps_places ... ok
[INFO] [stdout] test tests::remove_all_iter ... ok
[INFO] [stdout] test tests::remove_tail ... ok
[INFO] [stdout] test tests::iter_insert ... ok
[INFO] [stdout] test tests::remove_mark_alternate ... ok
[INFO] [stdout] test tests::fill_and_drop ... ok
[INFO] [stdout] test tests::mark_all ... ok
[INFO] [stdout] test tests::fill_and_iter ... ok
[INFO] [stdout] test tests::iter_tail ... ok
[INFO] [stderr]    Doc-tests linked-tail-list
[INFO] [stdout] test tests::iter_into_tail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 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" "10576e7bb08c9ebf7e8794661080d113da87ed8667b8be5d3e825b9ab6f71807"`
[INFO] running `"docker" "rm" "-f" "10576e7bb08c9ebf7e8794661080d113da87ed8667b8be5d3e825b9ab6f71807"`
[INFO] [stdout] 10576e7bb08c9ebf7e8794661080d113da87ed8667b8be5d3e825b9ab6f71807