[INFO] updating cached repository lesguillemets/pdfdr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lesguillemets/pdfdr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lesguillemets/pdfdr" "work/ex/beta-1.37-6/sources/1.36.0/gh/lesguillemets/pdfdr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lesguillemets/pdfdr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lesguillemets/pdfdr" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lesguillemets/pdfdr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lesguillemets/pdfdr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 261874519de6afd35337a53228f5ccc277c17b49
[INFO] sha for GitHub repo lesguillemets/pdfdr: 261874519de6afd35337a53228f5ccc277c17b49
[INFO] validating manifest of lesguillemets/pdfdr 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 lesguillemets/pdfdr 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 lesguillemets/pdfdr
[INFO] finished frobbing lesguillemets/pdfdr
[INFO] frobbed toml for lesguillemets/pdfdr written to work/ex/beta-1.37-6/sources/1.36.0/gh/lesguillemets/pdfdr/Cargo.toml
[INFO] started frobbing lesguillemets/pdfdr
[INFO] finished frobbing lesguillemets/pdfdr
[INFO] frobbed toml for lesguillemets/pdfdr written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lesguillemets/pdfdr/Cargo.toml
[INFO] crate lesguillemets/pdfdr 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 lesguillemets/pdfdr 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-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lesguillemets/pdfdr:/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] 4bc66b42f7176483850cb98698d145ee133026b51bce973de68ceeaa1224fc50
[INFO] running `"docker" "start" "-a" "4bc66b42f7176483850cb98698d145ee133026b51bce973de68ceeaa1224fc50"`
[INFO] [stderr]    Compiling dayfinder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `prefix`
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let prefix = args().nth(3).unwrap_or("".to_string());
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_prefix`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 bwriter.write_fmt(format_args!("{},{},{}", get_base_name(&file), &file, d));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "4bc66b42f7176483850cb98698d145ee133026b51bce973de68ceeaa1224fc50"`
[INFO] running `"docker" "rm" "-f" "4bc66b42f7176483850cb98698d145ee133026b51bce973de68ceeaa1224fc50"`
[INFO] [stdout] 4bc66b42f7176483850cb98698d145ee133026b51bce973de68ceeaa1224fc50
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lesguillemets/pdfdr:/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] a2f85e8c42acbf92d31fc6c8573633d1d896bd1764d1ff6363ecad3a9c3e89da
[INFO] running `"docker" "start" "-a" "a2f85e8c42acbf92d31fc6c8573633d1d896bd1764d1ff6363ecad3a9c3e89da"`
[INFO] [stderr]    Compiling dayfinder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `prefix`
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let prefix = args().nth(3).unwrap_or("".to_string());
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_prefix`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 bwriter.write_fmt(format_args!("{},{},{}", get_base_name(&file), &file, d));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "a2f85e8c42acbf92d31fc6c8573633d1d896bd1764d1ff6363ecad3a9c3e89da"`
[INFO] running `"docker" "rm" "-f" "a2f85e8c42acbf92d31fc6c8573633d1d896bd1764d1ff6363ecad3a9c3e89da"`
[INFO] [stdout] a2f85e8c42acbf92d31fc6c8573633d1d896bd1764d1ff6363ecad3a9c3e89da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lesguillemets/pdfdr:/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] f8176f5bd00c67d594f22e07676f40813f578e8289e8e2c6637d45d81c1533e5
[INFO] running `"docker" "start" "-a" "f8176f5bd00c67d594f22e07676f40813f578e8289e8e2c6637d45d81c1533e5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[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] [stderr]      Running /opt/crater/target/debug/deps/dayfinder-28fe5278c87d2e00
[INFO] running `"docker" "inspect" "f8176f5bd00c67d594f22e07676f40813f578e8289e8e2c6637d45d81c1533e5"`
[INFO] running `"docker" "rm" "-f" "f8176f5bd00c67d594f22e07676f40813f578e8289e8e2c6637d45d81c1533e5"`
[INFO] [stdout] f8176f5bd00c67d594f22e07676f40813f578e8289e8e2c6637d45d81c1533e5