[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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b523fdf94b3bd5c4223329b86c38461823706992872d7fd2e66772eddb780942
[INFO] running `"docker" "start" "-a" "b523fdf94b3bd5c4223329b86c38461823706992872d7fd2e66772eddb780942"`
[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" "b523fdf94b3bd5c4223329b86c38461823706992872d7fd2e66772eddb780942"`
[INFO] running `"docker" "rm" "-f" "b523fdf94b3bd5c4223329b86c38461823706992872d7fd2e66772eddb780942"`
[INFO] [stdout] b523fdf94b3bd5c4223329b86c38461823706992872d7fd2e66772eddb780942
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] bc5af1b9d2927b3514effca13c3d1370a0d51d19d1c1592f02fbd1f4da46a3cf
[INFO] running `"docker" "start" "-a" "bc5af1b9d2927b3514effca13c3d1370a0d51d19d1c1592f02fbd1f4da46a3cf"`
[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 0.74s
[INFO] running `"docker" "inspect" "bc5af1b9d2927b3514effca13c3d1370a0d51d19d1c1592f02fbd1f4da46a3cf"`
[INFO] running `"docker" "rm" "-f" "bc5af1b9d2927b3514effca13c3d1370a0d51d19d1c1592f02fbd1f4da46a3cf"`
[INFO] [stdout] bc5af1b9d2927b3514effca13c3d1370a0d51d19d1c1592f02fbd1f4da46a3cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 3efeb8f92848b0f4149117d14d31efd37cc2315fb3490419790df513d685673f
[INFO] running `"docker" "start" "-a" "3efeb8f92848b0f4149117d14d31efd37cc2315fb3490419790df513d685673f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/vfilt-f3fe9623322b764a
[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" "3efeb8f92848b0f4149117d14d31efd37cc2315fb3490419790df513d685673f"`
[INFO] running `"docker" "rm" "-f" "3efeb8f92848b0f4149117d14d31efd37cc2315fb3490419790df513d685673f"`
[INFO] [stdout] 3efeb8f92848b0f4149117d14d31efd37cc2315fb3490419790df513d685673f