[INFO] cloning repository u2/too-many-lists
[INFO] running `"git" "clone" "--bare" "git://github.com/u2/too-many-lists.git" "work/cache/sources/gh/u2/too-many-lists"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/u2/too-many-lists'...
[INFO] running `"git" "clone" "work/cache/sources/gh/u2/too-many-lists" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/u2/too-many-lists"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/u2/too-many-lists'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/u2/too-many-lists" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/u2/too-many-lists"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/u2/too-many-lists'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6f684c442e8a9020e89780aa4c9da3eb9214009f
[INFO] sha for GitHub repo u2/too-many-lists: 6f684c442e8a9020e89780aa4c9da3eb9214009f
[INFO] validating manifest of u2/too-many-lists 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 u2/too-many-lists 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 u2/too-many-lists
[INFO] finished frobbing u2/too-many-lists
[INFO] frobbed toml for u2/too-many-lists written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/u2/too-many-lists/Cargo.toml
[INFO] started frobbing u2/too-many-lists
[INFO] finished frobbing u2/too-many-lists
[INFO] frobbed toml for u2/too-many-lists written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/u2/too-many-lists/Cargo.toml
[INFO] crate u2/too-many-lists already has a lockfile, it will not be regenerated
[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 u2/too-many-lists against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/u2/too-many-lists:/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] aef88dfb06a3ad34c2bb22facfc1b259d986b86ba4d3e0139be27325f895ef1d
[INFO] running `"docker" "start" "-a" "aef88dfb06a3ad34c2bb22facfc1b259d986b86ba4d3e0139be27325f895ef1d"`
[INFO] [stderr]    Compiling lists v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/silly1.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "aef88dfb06a3ad34c2bb22facfc1b259d986b86ba4d3e0139be27325f895ef1d"`
[INFO] running `"docker" "rm" "-f" "aef88dfb06a3ad34c2bb22facfc1b259d986b86ba4d3e0139be27325f895ef1d"`
[INFO] [stdout] aef88dfb06a3ad34c2bb22facfc1b259d986b86ba4d3e0139be27325f895ef1d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/u2/too-many-lists:/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] 98c06d0ade7fc342ee6ff4fce3bea8b684e56126e686ad25d6ce56f19c522256
[INFO] running `"docker" "start" "-a" "98c06d0ade7fc342ee6ff4fce3bea8b684e56126e686ad25d6ce56f19c522256"`
[INFO] [stderr]    Compiling lists v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "98c06d0ade7fc342ee6ff4fce3bea8b684e56126e686ad25d6ce56f19c522256"`
[INFO] running `"docker" "rm" "-f" "98c06d0ade7fc342ee6ff4fce3bea8b684e56126e686ad25d6ce56f19c522256"`
[INFO] [stdout] 98c06d0ade7fc342ee6ff4fce3bea8b684e56126e686ad25d6ce56f19c522256
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/u2/too-many-lists:/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] b0c48fdaa9d92258485e585552df202084482507f0f62a91d5001f395fffb205
[INFO] running `"docker" "start" "-a" "b0c48fdaa9d92258485e585552df202084482507f0f62a91d5001f395fffb205"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lists-b7a2a5d67c7e6d85
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test fifth::test::iter_mut ... ok
[INFO] [stdout] test fifth::test::iter ... ok
[INFO] [stdout] test fifth::test::into_iter ... ok
[INFO] [stdout] test fifth::test::basics ... ok
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] test fourth::test::into_iter ... ok
[INFO] [stdout] test fourth::test::basics ... ok
[INFO] [stdout] test silly1::test::walk_aboot ... ok
[INFO] [stdout] test second::test::peek ... ok
[INFO] [stdout] test second::test::into_iter ... ok
[INFO] [stdout] test second::test::iter_mut ... ok
[INFO] [stdout] test second::test::basics ... ok
[INFO] [stdout] test fourth::test::peek ... ok
[INFO] [stdout] test third::test::basics ... ok
[INFO] [stdout] test third::test::iter ... ok
[INFO] [stdout] test second::test::iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lists
[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" "b0c48fdaa9d92258485e585552df202084482507f0f62a91d5001f395fffb205"`
[INFO] running `"docker" "rm" "-f" "b0c48fdaa9d92258485e585552df202084482507f0f62a91d5001f395fffb205"`
[INFO] [stdout] b0c48fdaa9d92258485e585552df202084482507f0f62a91d5001f395fffb205