[INFO] updating cached repository est31/cargo-ulint
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/est31/cargo-ulint
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/est31/cargo-ulint" "work/ex/beta-1.37-6/sources/1.36.0/gh/est31/cargo-ulint"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/est31/cargo-ulint'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/est31/cargo-ulint" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/est31/cargo-ulint"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/est31/cargo-ulint'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ffc088ecb632a539e6e66eff7c69f0fb6b7e969b
[INFO] sha for GitHub repo est31/cargo-ulint: ffc088ecb632a539e6e66eff7c69f0fb6b7e969b
[INFO] validating manifest of est31/cargo-ulint 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 est31/cargo-ulint 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 est31/cargo-ulint
[INFO] finished frobbing est31/cargo-ulint
[INFO] frobbed toml for est31/cargo-ulint written to work/ex/beta-1.37-6/sources/1.36.0/gh/est31/cargo-ulint/Cargo.toml
[INFO] started frobbing est31/cargo-ulint
[INFO] finished frobbing est31/cargo-ulint
[INFO] frobbed toml for est31/cargo-ulint written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/est31/cargo-ulint/Cargo.toml
[INFO] crate est31/cargo-ulint 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 est31/cargo-ulint 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/est31/cargo-ulint:/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] 7fb7e47c333be618a46cc2b7b854fb497789e503af3e449d0b34372fd959dd4f
[INFO] running `"docker" "start" "-a" "7fb7e47c333be618a46cc2b7b854fb497789e503af3e449d0b34372fd959dd4f"`
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling clap v2.29.0
[INFO] [stderr]    Compiling structopt v0.1.6
[INFO] [stderr]    Compiling cargo-ulint v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `Options`
[INFO] [stderr]   --> src/main.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let Options = Options::from_args();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_Options`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Options` should have a snake case name
[INFO] [stderr]   --> src/main.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let Options = Options::from_args();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `options`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.32s
[INFO] running `"docker" "inspect" "7fb7e47c333be618a46cc2b7b854fb497789e503af3e449d0b34372fd959dd4f"`
[INFO] running `"docker" "rm" "-f" "7fb7e47c333be618a46cc2b7b854fb497789e503af3e449d0b34372fd959dd4f"`
[INFO] [stdout] 7fb7e47c333be618a46cc2b7b854fb497789e503af3e449d0b34372fd959dd4f
[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/est31/cargo-ulint:/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] 4b75757dbc78990ed00776b593a3baac6eff360af049e6e5053299ef859d6e5b
[INFO] running `"docker" "start" "-a" "4b75757dbc78990ed00776b593a3baac6eff360af049e6e5053299ef859d6e5b"`
[INFO] [stderr]    Compiling cargo-ulint v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `Options`
[INFO] [stderr]   --> src/main.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let Options = Options::from_args();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_Options`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Options` should have a snake case name
[INFO] [stderr]   --> src/main.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let Options = Options::from_args();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `options`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "4b75757dbc78990ed00776b593a3baac6eff360af049e6e5053299ef859d6e5b"`
[INFO] running `"docker" "rm" "-f" "4b75757dbc78990ed00776b593a3baac6eff360af049e6e5053299ef859d6e5b"`
[INFO] [stdout] 4b75757dbc78990ed00776b593a3baac6eff360af049e6e5053299ef859d6e5b
[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/est31/cargo-ulint:/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] 6251135a4bd88a78e2f0a3d0626784a39a82acb428ecfdb5e7aff05b68e929e3
[INFO] running `"docker" "start" "-a" "6251135a4bd88a78e2f0a3d0626784a39a82acb428ecfdb5e7aff05b68e929e3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_ulint-7c45de5b355716f3
[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" "6251135a4bd88a78e2f0a3d0626784a39a82acb428ecfdb5e7aff05b68e929e3"`
[INFO] running `"docker" "rm" "-f" "6251135a4bd88a78e2f0a3d0626784a39a82acb428ecfdb5e7aff05b68e929e3"`
[INFO] [stdout] 6251135a4bd88a78e2f0a3d0626784a39a82acb428ecfdb5e7aff05b68e929e3