[INFO] updating cached repository lfordyce/rusty_linked_list
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lfordyce/rusty_linked_list
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lfordyce/rusty_linked_list" "work/ex/beta-1.37-6/sources/1.36.0/gh/lfordyce/rusty_linked_list"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lfordyce/rusty_linked_list'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lfordyce/rusty_linked_list" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lfordyce/rusty_linked_list"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lfordyce/rusty_linked_list'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 29339dc9d22f920078d2e80787ad894a26dc127d
[INFO] sha for GitHub repo lfordyce/rusty_linked_list: 29339dc9d22f920078d2e80787ad894a26dc127d
[INFO] validating manifest of lfordyce/rusty_linked_list on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lfordyce/rusty_linked_list on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lfordyce/rusty_linked_list
[INFO] finished frobbing lfordyce/rusty_linked_list
[INFO] frobbed toml for lfordyce/rusty_linked_list written to work/ex/beta-1.37-6/sources/1.36.0/gh/lfordyce/rusty_linked_list/Cargo.toml
[INFO] started frobbing lfordyce/rusty_linked_list
[INFO] finished frobbing lfordyce/rusty_linked_list
[INFO] frobbed toml for lfordyce/rusty_linked_list written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lfordyce/rusty_linked_list/Cargo.toml
[INFO] crate lfordyce/rusty_linked_list already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lfordyce/rusty_linked_list against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lfordyce/rusty_linked_list:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 1d86251d60c33d5374f49f4189a4d834749e7335e6b75da7d872ee59f17107c1
[INFO] running `"docker" "start" "-a" "1d86251d60c33d5374f49f4189a4d834749e7335e6b75da7d872ee59f17107c1"`
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "1d86251d60c33d5374f49f4189a4d834749e7335e6b75da7d872ee59f17107c1"`
[INFO] running `"docker" "rm" "-f" "1d86251d60c33d5374f49f4189a4d834749e7335e6b75da7d872ee59f17107c1"`
[INFO] [stdout] 1d86251d60c33d5374f49f4189a4d834749e7335e6b75da7d872ee59f17107c1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lfordyce/rusty_linked_list:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 98d9b6dd55389db4e6cad30b7ee9c2d2159e1f25925080dfb82a328b3afda37e
[INFO] running `"docker" "start" "-a" "98d9b6dd55389db4e6cad30b7ee9c2d2159e1f25925080dfb82a328b3afda37e"`
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "98d9b6dd55389db4e6cad30b7ee9c2d2159e1f25925080dfb82a328b3afda37e"`
[INFO] running `"docker" "rm" "-f" "98d9b6dd55389db4e6cad30b7ee9c2d2159e1f25925080dfb82a328b3afda37e"`
[INFO] [stdout] 98d9b6dd55389db4e6cad30b7ee9c2d2159e1f25925080dfb82a328b3afda37e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lfordyce/rusty_linked_list:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 4f5672d654c850a7e2a8a540af11464d89b0769af2163838056d63feb6f5925e
[INFO] running `"docker" "start" "-a" "4f5672d654c850a7e2a8a540af11464d89b0769af2163838056d63feb6f5925e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linked_list-97600a2a105489a6
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test second::test::iter_mut_test ... ok
[INFO] [stdout] test second::test::into_iter_test ... ok
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] test second::test::iter_test ... ok
[INFO] [stdout] test second::test::basics ... ok
[INFO] [stdout] test second::test::peek_test ... ok
[INFO] [stdout] test third::test::test_basics ... ok
[INFO] [stdout] test third::test::iter_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linked_list-c742fcb4fc052e06
[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] [stderr]    Doc-tests linked_list
[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" "4f5672d654c850a7e2a8a540af11464d89b0769af2163838056d63feb6f5925e"`
[INFO] running `"docker" "rm" "-f" "4f5672d654c850a7e2a8a540af11464d89b0769af2163838056d63feb6f5925e"`
[INFO] [stdout] 4f5672d654c850a7e2a8a540af11464d89b0769af2163838056d63feb6f5925e