[INFO] updating cached repository alanjcfs/conway
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alanjcfs/conway
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alanjcfs/conway" "work/ex/beta-1.38-1/sources/1.37.0/gh/alanjcfs/conway"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/alanjcfs/conway'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alanjcfs/conway" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alanjcfs/conway"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alanjcfs/conway'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a687a90926d5754e94334760f147bc29229bb109
[INFO] sha for GitHub repo alanjcfs/conway: a687a90926d5754e94334760f147bc29229bb109
[INFO] validating manifest of alanjcfs/conway 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 alanjcfs/conway 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 alanjcfs/conway
[INFO] finished frobbing alanjcfs/conway
[INFO] frobbed toml for alanjcfs/conway written to work/ex/beta-1.38-1/sources/1.37.0/gh/alanjcfs/conway/Cargo.toml
[INFO] started frobbing alanjcfs/conway
[INFO] finished frobbing alanjcfs/conway
[INFO] frobbed toml for alanjcfs/conway written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alanjcfs/conway/Cargo.toml
[INFO] crate alanjcfs/conway 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 alanjcfs/conway 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alanjcfs/conway:/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] 050c50a4f0fda63fb3c602b770566fc58ad4c6ef30856efc384df41636f1772b
[INFO] running `"docker" "start" "-a" "050c50a4f0fda63fb3c602b770566fc58ad4c6ef30856efc384df41636f1772b"`
[INFO] [stderr]    Compiling conway v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Live`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Live
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "050c50a4f0fda63fb3c602b770566fc58ad4c6ef30856efc384df41636f1772b"`
[INFO] running `"docker" "rm" "-f" "050c50a4f0fda63fb3c602b770566fc58ad4c6ef30856efc384df41636f1772b"`
[INFO] [stdout] 050c50a4f0fda63fb3c602b770566fc58ad4c6ef30856efc384df41636f1772b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alanjcfs/conway:/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] ff26b24371a91df7cb52a6f38995625e1a09abd87ef3c03d42a3a77ccd22f26b
[INFO] running `"docker" "start" "-a" "ff26b24371a91df7cb52a6f38995625e1a09abd87ef3c03d42a3a77ccd22f26b"`
[INFO] [stderr]    Compiling conway v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Live`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Live
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "ff26b24371a91df7cb52a6f38995625e1a09abd87ef3c03d42a3a77ccd22f26b"`
[INFO] running `"docker" "rm" "-f" "ff26b24371a91df7cb52a6f38995625e1a09abd87ef3c03d42a3a77ccd22f26b"`
[INFO] [stdout] ff26b24371a91df7cb52a6f38995625e1a09abd87ef3c03d42a3a77ccd22f26b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alanjcfs/conway:/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] a8276a93e2732ab8a699065d3e0436168ea33818eb2bc7534c45d1ec056808c2
[INFO] running `"docker" "start" "-a" "a8276a93e2732ab8a699065d3e0436168ea33818eb2bc7534c45d1ec056808c2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/conway-39287b396195fd33
[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" "a8276a93e2732ab8a699065d3e0436168ea33818eb2bc7534c45d1ec056808c2"`
[INFO] running `"docker" "rm" "-f" "a8276a93e2732ab8a699065d3e0436168ea33818eb2bc7534c45d1ec056808c2"`
[INFO] [stdout] a8276a93e2732ab8a699065d3e0436168ea33818eb2bc7534c45d1ec056808c2