[INFO] crate undo 0.29.3 is already in cache
[INFO] extracting crate undo 0.29.3 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/undo/0.29.3
[INFO] extracting crate undo 0.29.3 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/undo/0.29.3
[INFO] validating manifest of undo-0.29.3 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 undo-0.29.3 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 undo-0.29.3
[INFO] finished frobbing undo-0.29.3
[INFO] frobbed toml for undo-0.29.3 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/undo/0.29.3/Cargo.toml
[INFO] started frobbing undo-0.29.3
[INFO] finished frobbing undo-0.29.3
[INFO] frobbed toml for undo-0.29.3 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/undo/0.29.3/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 undo-0.29.3 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/undo/0.29.3:/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] 4f30d533ed0a9268ca03de60cf167ab779874c60f1007ccd95e19e900db8d635
[INFO] running `"docker" "start" "-a" "4f30d533ed0a9268ca03de60cf167ab779874c60f1007ccd95e19e900db8d635"`
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling undo v0.29.3 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:432:20
[INFO] [stderr]     |
[INFO] [stderr] 432 |         self.error.cause()
[INFO] [stderr]     |                    ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "4f30d533ed0a9268ca03de60cf167ab779874c60f1007ccd95e19e900db8d635"`
[INFO] running `"docker" "rm" "-f" "4f30d533ed0a9268ca03de60cf167ab779874c60f1007ccd95e19e900db8d635"`
[INFO] [stdout] 4f30d533ed0a9268ca03de60cf167ab779874c60f1007ccd95e19e900db8d635
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/undo/0.29.3:/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] f13dc9e6ea67aff1a956d73c05751150a15c170505b6135e35276b24253ccda9
[INFO] running `"docker" "start" "-a" "f13dc9e6ea67aff1a956d73c05751150a15c170505b6135e35276b24253ccda9"`
[INFO] [stderr]    Compiling undo v0.29.3 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/lib.rs:432:20
[INFO] [stderr]     |
[INFO] [stderr] 432 |         self.error.cause()
[INFO] [stderr]     |                    ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.43s
[INFO] running `"docker" "inspect" "f13dc9e6ea67aff1a956d73c05751150a15c170505b6135e35276b24253ccda9"`
[INFO] running `"docker" "rm" "-f" "f13dc9e6ea67aff1a956d73c05751150a15c170505b6135e35276b24253ccda9"`
[INFO] [stdout] f13dc9e6ea67aff1a956d73c05751150a15c170505b6135e35276b24253ccda9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/undo/0.29.3:/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"`
[INFO] [stdout] faba1fef0553f6ed63dfbb72e88b4443b383e9bc22b43aced519d1bf34055f2c
[INFO] running `"docker" "start" "-a" "faba1fef0553f6ed63dfbb72e88b4443b383e9bc22b43aced519d1bf34055f2c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/undo-8cf8057e040c9c52
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test checkpoint::tests::cancel ... ok
[INFO] [stdout] test record::tests::go_to ... ok
[INFO] [stdout] test queue::tests::commit ... ok
[INFO] [stdout] test record::tests::set_limit ... ok
[INFO] [stdout] test history::tests::go_to ... ok
[INFO] [stdout] test checkpoint::tests::commit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests undo
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/queue.rs - queue::Queue (line 17) ... ok
[INFO] [stdout] test src/record.rs - record::Record (line 25) ... ok
[INFO] [stdout] test src/merge.rs - merge (line 9) ... ok
[INFO] [stdout] test src/lib.rs - Command::merge (line 90) ... ok
[INFO] [stdout] test src/history.rs - history::History (line 16) ... ok
[INFO] [stdout] test src/checkpoint.rs - checkpoint::Checkpoint (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "faba1fef0553f6ed63dfbb72e88b4443b383e9bc22b43aced519d1bf34055f2c"`
[INFO] running `"docker" "rm" "-f" "faba1fef0553f6ed63dfbb72e88b4443b383e9bc22b43aced519d1bf34055f2c"`
[INFO] [stdout] faba1fef0553f6ed63dfbb72e88b4443b383e9bc22b43aced519d1bf34055f2c