[INFO] crate vfilt 0.1.0 is already in cache
[INFO] extracting crate vfilt 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/vfilt/0.1.0
[INFO] extracting crate vfilt 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/vfilt/0.1.0
[INFO] validating manifest of vfilt-0.1.0 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 vfilt-0.1.0 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 vfilt-0.1.0
[INFO] finished frobbing vfilt-0.1.0
[INFO] frobbed toml for vfilt-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/vfilt/0.1.0/Cargo.toml
[INFO] started frobbing vfilt-0.1.0
[INFO] finished frobbing vfilt-0.1.0
[INFO] frobbed toml for vfilt-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/vfilt/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 vfilt-0.1.0 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/vfilt/0.1.0:/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] 462bc8edee7a2275c1bdb4a76810e5d9711c6973430ff898e572fb912b2b49bc
[INFO] running `"docker" "start" "-a" "462bc8edee7a2275c1bdb4a76810e5d9711c6973430ff898e572fb912b2b49bc"`
[INFO] [stderr]    Compiling vfilt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `conf_file`
[INFO] [stderr]   --> src/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let conf_file = matches.value_of("config").unwrap_or(default_conf_location);
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_conf_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for crate
[INFO] [stderr]   --> src/main.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / #![warn(missing_docs)]
[INFO] [stderr] 2  | |
[INFO] [stderr] 3  | | extern crate clap;
[INFO] [stderr] 4  | |
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     let conf_file = matches.value_of("config").unwrap_or(default_conf_location);
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/main.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![warn(missing_docs)]
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "462bc8edee7a2275c1bdb4a76810e5d9711c6973430ff898e572fb912b2b49bc"`
[INFO] running `"docker" "rm" "-f" "462bc8edee7a2275c1bdb4a76810e5d9711c6973430ff898e572fb912b2b49bc"`
[INFO] [stdout] 462bc8edee7a2275c1bdb4a76810e5d9711c6973430ff898e572fb912b2b49bc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/vfilt/0.1.0:/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] 1c29adb36a0c6efc586785f939ff793f6befa8afc2ec8d5fbe1f92002aba48bc
[INFO] running `"docker" "start" "-a" "1c29adb36a0c6efc586785f939ff793f6befa8afc2ec8d5fbe1f92002aba48bc"`
[INFO] [stderr]    Compiling vfilt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `conf_file`
[INFO] [stderr]   --> src/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let conf_file = matches.value_of("config").unwrap_or(default_conf_location);
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_conf_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "1c29adb36a0c6efc586785f939ff793f6befa8afc2ec8d5fbe1f92002aba48bc"`
[INFO] running `"docker" "rm" "-f" "1c29adb36a0c6efc586785f939ff793f6befa8afc2ec8d5fbe1f92002aba48bc"`
[INFO] [stdout] 1c29adb36a0c6efc586785f939ff793f6befa8afc2ec8d5fbe1f92002aba48bc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/vfilt/0.1.0:/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] 04ec759208f52027671174201408f7f8fe5860dcff1757ea290f0209572469ee
[INFO] running `"docker" "start" "-a" "04ec759208f52027671174201408f7f8fe5860dcff1757ea290f0209572469ee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/vfilt-881da3ae95280e5b
[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" "04ec759208f52027671174201408f7f8fe5860dcff1757ea290f0209572469ee"`
[INFO] running `"docker" "rm" "-f" "04ec759208f52027671174201408f7f8fe5860dcff1757ea290f0209572469ee"`
[INFO] [stdout] 04ec759208f52027671174201408f7f8fe5860dcff1757ea290f0209572469ee