[INFO] crate undo 0.35.0 is already in cache
[INFO] extracting crate undo 0.35.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/undo/0.35.0
[INFO] extracting crate undo 0.35.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/undo/0.35.0
[INFO] validating manifest of undo-0.35.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of undo-0.35.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing undo-0.35.0
[INFO] finished frobbing undo-0.35.0
[INFO] frobbed toml for undo-0.35.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/undo/0.35.0/Cargo.toml
[INFO] started frobbing undo-0.35.0
[INFO] finished frobbing undo-0.35.0
[INFO] frobbed toml for undo-0.35.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/undo/0.35.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing undo-0.35.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/undo/0.35.0:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 748aa2a25436e526a69e5d9fce6cb5a219f3df216e4cd7f4a54dc1069a4d276e
[INFO] running `"docker" "start" "-a" "748aa2a25436e526a69e5d9fce6cb5a219f3df216e4cd7f4a54dc1069a4d276e"`
[INFO] [stderr]    Compiling undo v0.35.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "748aa2a25436e526a69e5d9fce6cb5a219f3df216e4cd7f4a54dc1069a4d276e"`
[INFO] running `"docker" "rm" "-f" "748aa2a25436e526a69e5d9fce6cb5a219f3df216e4cd7f4a54dc1069a4d276e"`
[INFO] [stdout] 748aa2a25436e526a69e5d9fce6cb5a219f3df216e4cd7f4a54dc1069a4d276e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/undo/0.35.0:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e1ecc7625e84ff5ea29c268b0aeba7f5cb5ee31efc4395da119c0f995dc0c114
[INFO] running `"docker" "start" "-a" "e1ecc7625e84ff5ea29c268b0aeba7f5cb5ee31efc4395da119c0f995dc0c114"`
[INFO] [stderr]    Compiling undo v0.35.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `"docker" "inspect" "e1ecc7625e84ff5ea29c268b0aeba7f5cb5ee31efc4395da119c0f995dc0c114"`
[INFO] running `"docker" "rm" "-f" "e1ecc7625e84ff5ea29c268b0aeba7f5cb5ee31efc4395da119c0f995dc0c114"`
[INFO] [stdout] e1ecc7625e84ff5ea29c268b0aeba7f5cb5ee31efc4395da119c0f995dc0c114
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/undo/0.35.0:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] f47ed13fc9f5901d435a7e0e0271eecfc68cf7882d6ffa556369a1abd2ffeeb8
[INFO] running `"docker" "start" "-a" "f47ed13fc9f5901d435a7e0e0271eecfc68cf7882d6ffa556369a1abd2ffeeb8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/undo-56baa57b167d5ee2
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test checkpoint::tests::commit ... ok
[INFO] [stdout] test history::tests::go_to ... ok
[INFO] [stdout] test checkpoint::tests::cancel ... ok
[INFO] [stdout] test queue::tests::commit ... ok
[INFO] [stdout] test record::tests::set_limit ... ok
[INFO] [stdout] test record::tests::go_to ... 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 9 tests
[INFO] [stdout] test src/history.rs - history::HistoryBuilder (line 606) ... ok
[INFO] [stdout] test src/record.rs - record::RecordBuilder (line 656) ... ok
[INFO] [stdout] test src/checkpoint.rs - checkpoint::Checkpoint (line 10) ... ok
[INFO] [stdout] test src/lib.rs - Command::merge (line 154) ... ok
[INFO] [stdout] test src/queue.rs - queue::Queue (line 9) ... ok
[INFO] [stdout] test src/record.rs - record::Record (line 25) ... ok
[INFO] [stdout] test src/chain.rs - chain::Chain (line 15) ... ok
[INFO] [stdout] test src/lib.rs -  (line 45) ... ok
[INFO] [stdout] test src/history.rs - history::History (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f47ed13fc9f5901d435a7e0e0271eecfc68cf7882d6ffa556369a1abd2ffeeb8"`
[INFO] running `"docker" "rm" "-f" "f47ed13fc9f5901d435a7e0e0271eecfc68cf7882d6ffa556369a1abd2ffeeb8"`
[INFO] [stdout] f47ed13fc9f5901d435a7e0e0271eecfc68cf7882d6ffa556369a1abd2ffeeb8