[INFO] updating cached repository PetriHiltula/rolldice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/PetriHiltula/rolldice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/PetriHiltula/rolldice" "work/ex/beta-1.38-1/sources/1.37.0/gh/PetriHiltula/rolldice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/PetriHiltula/rolldice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/PetriHiltula/rolldice" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PetriHiltula/rolldice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PetriHiltula/rolldice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6bcd8cc8320fb6ca39784919bb3fdb718c38bbac
[INFO] sha for GitHub repo PetriHiltula/rolldice: 6bcd8cc8320fb6ca39784919bb3fdb718c38bbac
[INFO] validating manifest of PetriHiltula/rolldice 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 PetriHiltula/rolldice 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 PetriHiltula/rolldice
[INFO] finished frobbing PetriHiltula/rolldice
[INFO] frobbed toml for PetriHiltula/rolldice written to work/ex/beta-1.38-1/sources/1.37.0/gh/PetriHiltula/rolldice/Cargo.toml
[INFO] started frobbing PetriHiltula/rolldice
[INFO] finished frobbing PetriHiltula/rolldice
[INFO] frobbed toml for PetriHiltula/rolldice written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PetriHiltula/rolldice/Cargo.toml
[INFO] crate PetriHiltula/rolldice 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 PetriHiltula/rolldice 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PetriHiltula/rolldice:/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] 351e3382b17872175af343e5e94acf09332c2bd3db9f9e403ba618f8c531242d
[INFO] running `"docker" "start" "-a" "351e3382b17872175af343e5e94acf09332c2bd3db9f9e403ba618f8c531242d"`
[INFO] [stderr]    Compiling rolldice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `dice_roll` is never read
[INFO] [stderr]   --> src/main.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut dice_roll: i32 = 0;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `multiplier` is never read
[INFO] [stderr]   --> src/main.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |   let mut multiplier: i32 = 0;
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `modifier` is never read
[INFO] [stderr]   --> src/main.rs:58:11
[INFO] [stderr]    |
[INFO] [stderr] 58 |   let mut modifier: i32 = 0;
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         Err(e) => { multiplier = 1 }
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         Err(e) => { modifier = 0; }
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `"docker" "inspect" "351e3382b17872175af343e5e94acf09332c2bd3db9f9e403ba618f8c531242d"`
[INFO] running `"docker" "rm" "-f" "351e3382b17872175af343e5e94acf09332c2bd3db9f9e403ba618f8c531242d"`
[INFO] [stdout] 351e3382b17872175af343e5e94acf09332c2bd3db9f9e403ba618f8c531242d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PetriHiltula/rolldice:/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] b5a2f893f03314e19cc2c44fd9fc5007dc9018bcf4024b30f528dfcb7ac427a0
[INFO] running `"docker" "start" "-a" "b5a2f893f03314e19cc2c44fd9fc5007dc9018bcf4024b30f528dfcb7ac427a0"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rolldice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `dice_roll` is never read
[INFO] [stderr]   --> src/main.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut dice_roll: i32 = 0;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `multiplier` is never read
[INFO] [stderr]   --> src/main.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |   let mut multiplier: i32 = 0;
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `modifier` is never read
[INFO] [stderr]   --> src/main.rs:58:11
[INFO] [stderr]    |
[INFO] [stderr] 58 |   let mut modifier: i32 = 0;
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         Err(e) => { multiplier = 1 }
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         Err(e) => { modifier = 0; }
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "b5a2f893f03314e19cc2c44fd9fc5007dc9018bcf4024b30f528dfcb7ac427a0"`
[INFO] running `"docker" "rm" "-f" "b5a2f893f03314e19cc2c44fd9fc5007dc9018bcf4024b30f528dfcb7ac427a0"`
[INFO] [stdout] b5a2f893f03314e19cc2c44fd9fc5007dc9018bcf4024b30f528dfcb7ac427a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PetriHiltula/rolldice:/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] 0e5fee9fc2118ea038b5d22cfe113be3a5a7054e772893ca5760cadec2401c96
[INFO] running `"docker" "start" "-a" "0e5fee9fc2118ea038b5d22cfe113be3a5a7054e772893ca5760cadec2401c96"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rolldice-83ff44e91b6ab2e2
[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" "0e5fee9fc2118ea038b5d22cfe113be3a5a7054e772893ca5760cadec2401c96"`
[INFO] running `"docker" "rm" "-f" "0e5fee9fc2118ea038b5d22cfe113be3a5a7054e772893ca5760cadec2401c96"`
[INFO] [stdout] 0e5fee9fc2118ea038b5d22cfe113be3a5a7054e772893ca5760cadec2401c96