[INFO] fetching crate cases 0.2.3...
[INFO] extracting crate cases 0.2.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/cases/0.2.3
[INFO] extracting crate cases 0.2.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cases/0.2.3
[INFO] validating manifest of cases-0.2.3 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 cases-0.2.3 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 cases-0.2.3
[INFO] finished frobbing cases-0.2.3
[INFO] frobbed toml for cases-0.2.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/cases/0.2.3/Cargo.toml
[INFO] started frobbing cases-0.2.3
[INFO] finished frobbing cases-0.2.3
[INFO] frobbed toml for cases-0.2.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cases/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 cases-0.2.3 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-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cases/0.2.3:/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] b040fae2f19351d8c7f64f8ca1e9478ac31f165dfa3d8cc977c4b4d320d3856b
[INFO] running `"docker" "start" "-a" "b040fae2f19351d8c7f64f8ca1e9478ac31f165dfa3d8cc977c4b4d320d3856b"`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling static_assertions v0.3.3
[INFO] [stderr]    Compiling nom v5.0.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling stackvector v1.0.6
[INFO] [stderr]    Compiling lexical-core v0.4.3
[INFO] [stderr]    Compiling cases v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Upper`
[INFO] [stderr]    --> src/parser.rs:256:3
[INFO] [stderr]     |
[INFO] [stderr] 256 |   Upper,
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lower`
[INFO] [stderr]    --> src/parser.rs:257:3
[INFO] [stderr]     |
[INFO] [stderr] 257 |   Lower,
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.60s
[INFO] running `"docker" "inspect" "b040fae2f19351d8c7f64f8ca1e9478ac31f165dfa3d8cc977c4b4d320d3856b"`
[INFO] running `"docker" "rm" "-f" "b040fae2f19351d8c7f64f8ca1e9478ac31f165dfa3d8cc977c4b4d320d3856b"`
[INFO] [stdout] b040fae2f19351d8c7f64f8ca1e9478ac31f165dfa3d8cc977c4b4d320d3856b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cases/0.2.3:/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] d30bc87b1f1b14ec81c91bef93f07e5a5db3312d64f3e93898751a818f9f4c62
[INFO] running `"docker" "start" "-a" "d30bc87b1f1b14ec81c91bef93f07e5a5db3312d64f3e93898751a818f9f4c62"`
[INFO] [stderr]    Compiling cases v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `"docker" "inspect" "d30bc87b1f1b14ec81c91bef93f07e5a5db3312d64f3e93898751a818f9f4c62"`
[INFO] running `"docker" "rm" "-f" "d30bc87b1f1b14ec81c91bef93f07e5a5db3312d64f3e93898751a818f9f4c62"`
[INFO] [stdout] d30bc87b1f1b14ec81c91bef93f07e5a5db3312d64f3e93898751a818f9f4c62
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cases/0.2.3:/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] a887e091332e62b41603dfbadd0cb8f0609c56076d4661f81fcf4444a8f5fda8
[INFO] running `"docker" "start" "-a" "a887e091332e62b41603dfbadd0cb8f0609c56076d4661f81fcf4444a8f5fda8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cases-c51dbb8797bfb9cc
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parser::parse_cases ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a887e091332e62b41603dfbadd0cb8f0609c56076d4661f81fcf4444a8f5fda8"`
[INFO] running `"docker" "rm" "-f" "a887e091332e62b41603dfbadd0cb8f0609c56076d4661f81fcf4444a8f5fda8"`
[INFO] [stdout] a887e091332e62b41603dfbadd0cb8f0609c56076d4661f81fcf4444a8f5fda8