[INFO] updating cached repository https://github.com/picklenerd/counterfeit
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7afda92ac59dc78398baa9d0dedf0cc71cf5e03a
[INFO] testing picklenerd/counterfeit against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpicklenerd%2Fcounterfeit" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/picklenerd/counterfeit on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/picklenerd/counterfeit
[INFO] finished tweaking git repo https://github.com/picklenerd/counterfeit
[INFO] tweaked toml for git repo https://github.com/picklenerd/counterfeit written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/picklenerd/counterfeit already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] adbbffabee3e3b233005498e70bab5ee7ff0d252bbd86c976a8ae2c449837ddd
[INFO] running `"docker" "start" "-a" "adbbffabee3e3b233005498e70bab5ee7ff0d252bbd86c976a8ae2c449837ddd"`
[INFO] [stderr]    Compiling syn v0.15.43
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling counterfeit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `force_file_prefix`
[INFO] [stderr]   --> src/config.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 30 |         force_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `force_file_prefix: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ignore_file_prefix`
[INFO] [stderr]   --> src/config.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 |         ignore_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `ignore_file_prefix: _`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.00s
[INFO] running `"docker" "inspect" "adbbffabee3e3b233005498e70bab5ee7ff0d252bbd86c976a8ae2c449837ddd"`
[INFO] running `"docker" "rm" "-f" "adbbffabee3e3b233005498e70bab5ee7ff0d252bbd86c976a8ae2c449837ddd"`
[INFO] [stdout] adbbffabee3e3b233005498e70bab5ee7ff0d252bbd86c976a8ae2c449837ddd
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 34fd88011f78975ed16833739c446c7fa46dd8ce9c68994bdc502366650a8fd5
[INFO] running `"docker" "start" "-a" "34fd88011f78975ed16833739c446c7fa46dd8ce9c68994bdc502366650a8fd5"`
[INFO] [stderr]    Compiling counterfeit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `force_file_prefix`
[INFO] [stderr]   --> src/config.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 30 |         force_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `force_file_prefix: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ignore_file_prefix`
[INFO] [stderr]   --> src/config.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 |         ignore_file_prefix,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `ignore_file_prefix: _`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `"docker" "inspect" "34fd88011f78975ed16833739c446c7fa46dd8ce9c68994bdc502366650a8fd5"`
[INFO] running `"docker" "rm" "-f" "34fd88011f78975ed16833739c446c7fa46dd8ce9c68994bdc502366650a8fd5"`
[INFO] [stdout] 34fd88011f78975ed16833739c446c7fa46dd8ce9c68994bdc502366650a8fd5
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] f8202c1fed103322e1090438427253566a0ca9550f0752626939f54e8895b2cb
[INFO] running `"docker" "start" "-a" "f8202c1fed103322e1090438427253566a0ca9550f0752626939f54e8895b2cb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/counterfeit-7f0cf101be38171d
[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" "f8202c1fed103322e1090438427253566a0ca9550f0752626939f54e8895b2cb"`
[INFO] running `"docker" "rm" "-f" "f8202c1fed103322e1090438427253566a0ca9550f0752626939f54e8895b2cb"`
[INFO] [stdout] f8202c1fed103322e1090438427253566a0ca9550f0752626939f54e8895b2cb