[INFO] updating cached repository smoench/maexchen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/smoench/maexchen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/smoench/maexchen" "work/ex/beta-1.38-1/sources/1.37.0/gh/smoench/maexchen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/smoench/maexchen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/smoench/maexchen" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/smoench/maexchen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/smoench/maexchen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd22f41af3bb12d42ad992e243d8631e79b1865a
[INFO] sha for GitHub repo smoench/maexchen: bd22f41af3bb12d42ad992e243d8631e79b1865a
[INFO] validating manifest of smoench/maexchen 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 smoench/maexchen 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 smoench/maexchen
[INFO] finished frobbing smoench/maexchen
[INFO] frobbed toml for smoench/maexchen written to work/ex/beta-1.38-1/sources/1.37.0/gh/smoench/maexchen/Cargo.toml
[INFO] started frobbing smoench/maexchen
[INFO] finished frobbing smoench/maexchen
[INFO] frobbed toml for smoench/maexchen written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/smoench/maexchen/Cargo.toml
[INFO] crate smoench/maexchen 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 smoench/maexchen 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/smoench/maexchen:/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] a5e1de1571bc215796940008b0a81a03ffc422033f6756ee85b748398d15d11e
[INFO] running `"docker" "start" "-a" "a5e1de1571bc215796940008b0a81a03ffc422033f6756ee85b748398d15d11e"`
[INFO] [stderr]    Compiling maexchen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `last_announced_dice` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut last_announced_dice: String = String::new();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_last_announced_dice` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last_announced_dice` is never read
[INFO] [stderr]   --> src/main.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             last_announced_dice = split_msg[2].to_string();
[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: unused variable: `hash`
[INFO] [stderr]    --> src/main.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |     let hash: Vec<&str> = vec![
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_hash`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:111:15
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |               ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:111:26
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |                          ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_greater`
[INFO] [stderr]    --> src/main.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "a5e1de1571bc215796940008b0a81a03ffc422033f6756ee85b748398d15d11e"`
[INFO] running `"docker" "rm" "-f" "a5e1de1571bc215796940008b0a81a03ffc422033f6756ee85b748398d15d11e"`
[INFO] [stdout] a5e1de1571bc215796940008b0a81a03ffc422033f6756ee85b748398d15d11e
[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/smoench/maexchen:/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] 45ecb8830c2be874d3a027dc2a1062ae0fde6a7536d05c2539710f52b21aa696
[INFO] running `"docker" "start" "-a" "45ecb8830c2be874d3a027dc2a1062ae0fde6a7536d05c2539710f52b21aa696"`
[INFO] [stderr]    Compiling maexchen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `last_announced_dice` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut last_announced_dice: String = String::new();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_last_announced_dice` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last_announced_dice` is never read
[INFO] [stderr]   --> src/main.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             last_announced_dice = split_msg[2].to_string();
[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: unused variable: `hash`
[INFO] [stderr]    --> src/main.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |     let hash: Vec<&str> = vec![
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_hash`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:111:15
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |               ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:111:26
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |                          ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_greater`
[INFO] [stderr]    --> src/main.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "45ecb8830c2be874d3a027dc2a1062ae0fde6a7536d05c2539710f52b21aa696"`
[INFO] running `"docker" "rm" "-f" "45ecb8830c2be874d3a027dc2a1062ae0fde6a7536d05c2539710f52b21aa696"`
[INFO] [stdout] 45ecb8830c2be874d3a027dc2a1062ae0fde6a7536d05c2539710f52b21aa696
[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/smoench/maexchen:/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] 7468fc23b09995c1d3a882a4f67351e735ac0ebd551516d20a4631fb661bc2fc
[INFO] running `"docker" "start" "-a" "7468fc23b09995c1d3a882a4f67351e735ac0ebd551516d20a4631fb661bc2fc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/maexchen-751b9d1d17af921b
[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" "7468fc23b09995c1d3a882a4f67351e735ac0ebd551516d20a4631fb661bc2fc"`
[INFO] running `"docker" "rm" "-f" "7468fc23b09995c1d3a882a4f67351e735ac0ebd551516d20a4631fb661bc2fc"`
[INFO] [stdout] 7468fc23b09995c1d3a882a4f67351e735ac0ebd551516d20a4631fb661bc2fc