[INFO] updating cached repository notexactlyawe/rust-hangman
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/notexactlyawe/rust-hangman
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/notexactlyawe/rust-hangman" "work/ex/beta-1.38-1/sources/1.37.0/gh/notexactlyawe/rust-hangman"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/notexactlyawe/rust-hangman'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/notexactlyawe/rust-hangman" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/notexactlyawe/rust-hangman"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/notexactlyawe/rust-hangman'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9c48c49412dd7bdafb009e5524f2db2e3eda0137
[INFO] sha for GitHub repo notexactlyawe/rust-hangman: 9c48c49412dd7bdafb009e5524f2db2e3eda0137
[INFO] validating manifest of notexactlyawe/rust-hangman 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 notexactlyawe/rust-hangman 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 notexactlyawe/rust-hangman
[INFO] finished frobbing notexactlyawe/rust-hangman
[INFO] frobbed toml for notexactlyawe/rust-hangman written to work/ex/beta-1.38-1/sources/1.37.0/gh/notexactlyawe/rust-hangman/Cargo.toml
[INFO] started frobbing notexactlyawe/rust-hangman
[INFO] finished frobbing notexactlyawe/rust-hangman
[INFO] frobbed toml for notexactlyawe/rust-hangman written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/notexactlyawe/rust-hangman/Cargo.toml
[INFO] crate notexactlyawe/rust-hangman already has a lockfile, it will not be regenerated
[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 notexactlyawe/rust-hangman 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/notexactlyawe/rust-hangman:/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] e95c45a2f2b7b9fce31d1c1b413fff18f3d6282a0c6f01576547ec7affff1cc3
[INFO] running `"docker" "start" "-a" "e95c45a2f2b7b9fce31d1c1b413fff18f3d6282a0c6f01576547ec7affff1cc3"`
[INFO] [stderr]    Compiling hangman v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     f.read_to_string(&mut f_buf);
[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 1.26s
[INFO] running `"docker" "inspect" "e95c45a2f2b7b9fce31d1c1b413fff18f3d6282a0c6f01576547ec7affff1cc3"`
[INFO] running `"docker" "rm" "-f" "e95c45a2f2b7b9fce31d1c1b413fff18f3d6282a0c6f01576547ec7affff1cc3"`
[INFO] [stdout] e95c45a2f2b7b9fce31d1c1b413fff18f3d6282a0c6f01576547ec7affff1cc3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/notexactlyawe/rust-hangman:/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] a6c9cbb8fe029e673cbebdfd5ce6117d2cd2322c865110b1c4ebbe7b984fde3a
[INFO] running `"docker" "start" "-a" "a6c9cbb8fe029e673cbebdfd5ce6117d2cd2322c865110b1c4ebbe7b984fde3a"`
[INFO] [stderr]    Compiling hangman v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     f.read_to_string(&mut f_buf);
[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 0.92s
[INFO] running `"docker" "inspect" "a6c9cbb8fe029e673cbebdfd5ce6117d2cd2322c865110b1c4ebbe7b984fde3a"`
[INFO] running `"docker" "rm" "-f" "a6c9cbb8fe029e673cbebdfd5ce6117d2cd2322c865110b1c4ebbe7b984fde3a"`
[INFO] [stdout] a6c9cbb8fe029e673cbebdfd5ce6117d2cd2322c865110b1c4ebbe7b984fde3a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/notexactlyawe/rust-hangman:/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] eeddb99bd54404558536a89520557ce494e3144aafa7317844e2fb296612c4fa
[INFO] running `"docker" "start" "-a" "eeddb99bd54404558536a89520557ce494e3144aafa7317844e2fb296612c4fa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hangman-645bf2e4f065de88
[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" "eeddb99bd54404558536a89520557ce494e3144aafa7317844e2fb296612c4fa"`
[INFO] running `"docker" "rm" "-f" "eeddb99bd54404558536a89520557ce494e3144aafa7317844e2fb296612c4fa"`
[INFO] [stdout] eeddb99bd54404558536a89520557ce494e3144aafa7317844e2fb296612c4fa