[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-1.38-1/sources/1.37.0/gh/lfordyce/rusty_linked_list"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lfordyce/rusty_linked_list'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lfordyce/rusty_linked_list" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lfordyce/rusty_linked_list"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lfordyce/rusty_linked_list 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 lfordyce/rusty_linked_list
[INFO] finished frobbing lfordyce/rusty_linked_list
[INFO] frobbed toml for lfordyce/rusty_linked_list written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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 lfordyce/rusty_linked_list 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6779e944c6a489e3d13a5c363b33b9ded01b26a6bae3982b1693011b69a4ce5e
[INFO] running `"docker" "start" "-a" "6779e944c6a489e3d13a5c363b33b9ded01b26a6bae3982b1693011b69a4ce5e"`
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "6779e944c6a489e3d13a5c363b33b9ded01b26a6bae3982b1693011b69a4ce5e"`
[INFO] running `"docker" "rm" "-f" "6779e944c6a489e3d13a5c363b33b9ded01b26a6bae3982b1693011b69a4ce5e"`
[INFO] [stdout] 6779e944c6a489e3d13a5c363b33b9ded01b26a6bae3982b1693011b69a4ce5e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 77a80155059f8883207b34aace2ea621dc0d76adcf65f7be7d842febcd01e208
[INFO] running `"docker" "start" "-a" "77a80155059f8883207b34aace2ea621dc0d76adcf65f7be7d842febcd01e208"`
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "77a80155059f8883207b34aace2ea621dc0d76adcf65f7be7d842febcd01e208"`
[INFO] running `"docker" "rm" "-f" "77a80155059f8883207b34aace2ea621dc0d76adcf65f7be7d842febcd01e208"`
[INFO] [stdout] 77a80155059f8883207b34aace2ea621dc0d76adcf65f7be7d842febcd01e208
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] bff89c6cb711851e805e281c2437a4d125e646d967dc3af4fab6a35fc303b922
[INFO] running `"docker" "start" "-a" "bff89c6cb711851e805e281c2437a4d125e646d967dc3af4fab6a35fc303b922"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linked_list-10ded6e8eb645f79
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test second::test::peek_test ... ok
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] test second::test::basics ... ok
[INFO] [stdout] test second::test::iter_mut_test ... ok
[INFO] [stdout] test second::test::iter_test ... ok
[INFO] [stdout] test second::test::into_iter_test ... ok
[INFO] [stdout] test third::test::iter_test ... ok
[INFO] [stdout] test third::test::test_basics ... 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-c6a09b603ee800fb
[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" "bff89c6cb711851e805e281c2437a4d125e646d967dc3af4fab6a35fc303b922"`
[INFO] running `"docker" "rm" "-f" "bff89c6cb711851e805e281c2437a4d125e646d967dc3af4fab6a35fc303b922"`
[INFO] [stdout] bff89c6cb711851e805e281c2437a4d125e646d967dc3af4fab6a35fc303b922