[INFO] updating cached repository MordecaiMalignatus/checklists
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MordecaiMalignatus/checklists
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MordecaiMalignatus/checklists" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/MordecaiMalignatus/checklists"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/MordecaiMalignatus/checklists'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MordecaiMalignatus/checklists" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/MordecaiMalignatus/checklists"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/MordecaiMalignatus/checklists'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8dd04f379543161f7fd0ac8514ae6bd17a609aac
[INFO] sha for GitHub repo MordecaiMalignatus/checklists: 8dd04f379543161f7fd0ac8514ae6bd17a609aac
[INFO] validating manifest of MordecaiMalignatus/checklists 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 MordecaiMalignatus/checklists 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 MordecaiMalignatus/checklists
[INFO] finished frobbing MordecaiMalignatus/checklists
[INFO] frobbed toml for MordecaiMalignatus/checklists written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/MordecaiMalignatus/checklists/Cargo.toml
[INFO] started frobbing MordecaiMalignatus/checklists
[INFO] finished frobbing MordecaiMalignatus/checklists
[INFO] frobbed toml for MordecaiMalignatus/checklists written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/MordecaiMalignatus/checklists/Cargo.toml
[INFO] crate MordecaiMalignatus/checklists has a lockfile. skipping
[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] [stderr]     Blocking waiting for file lock on the registry index
[INFO] building MordecaiMalignatus/checklists against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/MordecaiMalignatus/checklists:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 8397cc9374a303a264d3df41213b3c918d7cfbf98451eec491df3de6ff7da459
[INFO] running `"docker" "start" "-a" "8397cc9374a303a264d3df41213b3c918d7cfbf98451eec491df3de6ff7da459"`
[INFO] [stderr]    Compiling checklists v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `set_children`
[INFO] [stderr]   --> src/item.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn set_children(self, children: Vec<Item>) -> Item {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_child`
[INFO] [stderr]   --> src/item.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn add_child(self, child: Item) -> Item {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `"docker" "inspect" "8397cc9374a303a264d3df41213b3c918d7cfbf98451eec491df3de6ff7da459"`
[INFO] running `"docker" "rm" "-f" "8397cc9374a303a264d3df41213b3c918d7cfbf98451eec491df3de6ff7da459"`
[INFO] [stdout] 8397cc9374a303a264d3df41213b3c918d7cfbf98451eec491df3de6ff7da459
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/MordecaiMalignatus/checklists:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] d9db6cdc244dea716e42ee4c1993f0dce179972880baadbfed3b339604c568a8
[INFO] running `"docker" "start" "-a" "d9db6cdc244dea716e42ee4c1993f0dce179972880baadbfed3b339604c568a8"`
[INFO] [stderr]    Compiling checklists v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "d9db6cdc244dea716e42ee4c1993f0dce179972880baadbfed3b339604c568a8"`
[INFO] running `"docker" "rm" "-f" "d9db6cdc244dea716e42ee4c1993f0dce179972880baadbfed3b339604c568a8"`
[INFO] [stdout] d9db6cdc244dea716e42ee4c1993f0dce179972880baadbfed3b339604c568a8