[INFO] updating cached repository mlevesquedion/stack_set
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mlevesquedion/stack_set
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mlevesquedion/stack_set" "work/ex/beta-1.37-6/sources/1.36.0/gh/mlevesquedion/stack_set"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mlevesquedion/stack_set'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mlevesquedion/stack_set" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mlevesquedion/stack_set"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mlevesquedion/stack_set'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 13f767956d0fdb26ca60097bd4aa54a779356e85
[INFO] sha for GitHub repo mlevesquedion/stack_set: 13f767956d0fdb26ca60097bd4aa54a779356e85
[INFO] validating manifest of mlevesquedion/stack_set 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 mlevesquedion/stack_set 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 mlevesquedion/stack_set
[INFO] finished frobbing mlevesquedion/stack_set
[INFO] frobbed toml for mlevesquedion/stack_set written to work/ex/beta-1.37-6/sources/1.36.0/gh/mlevesquedion/stack_set/Cargo.toml
[INFO] started frobbing mlevesquedion/stack_set
[INFO] finished frobbing mlevesquedion/stack_set
[INFO] frobbed toml for mlevesquedion/stack_set written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mlevesquedion/stack_set/Cargo.toml
[INFO] crate mlevesquedion/stack_set 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 mlevesquedion/stack_set against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mlevesquedion/stack_set:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 79a90497224cafe260dce25493189084f26f0ba3a0880ba3b7ad1a0d7fb90e81
[INFO] running `"docker" "start" "-a" "79a90497224cafe260dce25493189084f26f0ba3a0880ba3b7ad1a0d7fb90e81"`
[INFO] [stderr]    Compiling next_prime v0.1.1
[INFO] [stderr]    Compiling stack_set v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `"docker" "inspect" "79a90497224cafe260dce25493189084f26f0ba3a0880ba3b7ad1a0d7fb90e81"`
[INFO] running `"docker" "rm" "-f" "79a90497224cafe260dce25493189084f26f0ba3a0880ba3b7ad1a0d7fb90e81"`
[INFO] [stdout] 79a90497224cafe260dce25493189084f26f0ba3a0880ba3b7ad1a0d7fb90e81
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mlevesquedion/stack_set:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 85f66983f499c972f223047f11e6892e28e54f6dfba29c967bb3961b60cc48a2
[INFO] running `"docker" "start" "-a" "85f66983f499c972f223047f11e6892e28e54f6dfba29c967bb3961b60cc48a2"`
[INFO] [stderr]    Compiling stack_set v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "85f66983f499c972f223047f11e6892e28e54f6dfba29c967bb3961b60cc48a2"`
[INFO] running `"docker" "rm" "-f" "85f66983f499c972f223047f11e6892e28e54f6dfba29c967bb3961b60cc48a2"`
[INFO] [stdout] 85f66983f499c972f223047f11e6892e28e54f6dfba29c967bb3961b60cc48a2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mlevesquedion/stack_set:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] c7f34f2b1892e5ac71c5c787d5d10dfab43250d2dbde33caf6ddc0b698c04ead
[INFO] running `"docker" "start" "-a" "c7f34f2b1892e5ac71c5c787d5d10dfab43250d2dbde33caf6ddc0b698c04ead"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stack_set-fdd9915637f894c2
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::empty_stack_contains_nothing ... ok
[INFO] [stdout] test tests::new_stack_is_empty ... ok
[INFO] [stdout] test tests::stack_contains_element_that_was_added ... ok
[INFO] [stdout] test tests::stack_is_not_empty_after_push ... ok
[INFO] [stdout] test tests::stack_does_not_contain_element_that_was_popped ... ok
[INFO] [stdout] test tests::top_returns_last_element_that_was_added ... ok
[INFO] [stdout] test tests::stack_has_no_top_when_empty ... ok
[INFO] [stdout] test tests::pop_returns_and_removes_top_element ... ok
[INFO] [stdout] test tests::cannot_pop_from_empty_stack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stack_set-d07767c512ab625a
[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 stack_set
[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" "c7f34f2b1892e5ac71c5c787d5d10dfab43250d2dbde33caf6ddc0b698c04ead"`
[INFO] running `"docker" "rm" "-f" "c7f34f2b1892e5ac71c5c787d5d10dfab43250d2dbde33caf6ddc0b698c04ead"`
[INFO] [stdout] c7f34f2b1892e5ac71c5c787d5d10dfab43250d2dbde33caf6ddc0b698c04ead