[INFO] updating cached repository mankinskin/budget_app
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mankinskin/budget_app
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mankinskin/budget_app" "work/ex/beta-1.38-1/sources/1.37.0/gh/mankinskin/budget_app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mankinskin/budget_app'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mankinskin/budget_app" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mankinskin/budget_app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mankinskin/budget_app'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9b6cb7937278cf7a9b88b9274085aa26db163649
[INFO] sha for GitHub repo mankinskin/budget_app: 9b6cb7937278cf7a9b88b9274085aa26db163649
[INFO] validating manifest of mankinskin/budget_app 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 mankinskin/budget_app 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 mankinskin/budget_app
[INFO] finished frobbing mankinskin/budget_app
[INFO] frobbed toml for mankinskin/budget_app written to work/ex/beta-1.38-1/sources/1.37.0/gh/mankinskin/budget_app/Cargo.toml
[INFO] started frobbing mankinskin/budget_app
[INFO] finished frobbing mankinskin/budget_app
[INFO] frobbed toml for mankinskin/budget_app written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mankinskin/budget_app/Cargo.toml
[INFO] crate mankinskin/budget_app 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 mankinskin/budget_app 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mankinskin/budget_app:/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] e538884d7ee680f15904d2b85b072acd9fdc633fd0d54a627858660fdd74e1e5
[INFO] running `"docker" "start" "-a" "e538884d7ee680f15904d2b85b072acd9fdc633fd0d54a627858660fdd74e1e5"`
[INFO] [stderr]    Compiling budget_app v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `balance_string`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn balance_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "e538884d7ee680f15904d2b85b072acd9fdc633fd0d54a627858660fdd74e1e5"`
[INFO] running `"docker" "rm" "-f" "e538884d7ee680f15904d2b85b072acd9fdc633fd0d54a627858660fdd74e1e5"`
[INFO] [stdout] e538884d7ee680f15904d2b85b072acd9fdc633fd0d54a627858660fdd74e1e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mankinskin/budget_app:/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] d68495fad65f78fce8bb3a3e96645f476f4a6e959ff68947ed5cee3aa3c93e98
[INFO] running `"docker" "start" "-a" "d68495fad65f78fce8bb3a3e96645f476f4a6e959ff68947ed5cee3aa3c93e98"`
[INFO] [stderr]    Compiling budget_app v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `balance_string`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn balance_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "d68495fad65f78fce8bb3a3e96645f476f4a6e959ff68947ed5cee3aa3c93e98"`
[INFO] running `"docker" "rm" "-f" "d68495fad65f78fce8bb3a3e96645f476f4a6e959ff68947ed5cee3aa3c93e98"`
[INFO] [stdout] d68495fad65f78fce8bb3a3e96645f476f4a6e959ff68947ed5cee3aa3c93e98
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mankinskin/budget_app:/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] 22f76afc60d99cbcdd038306c45a0b617076ff15d07e331cc674f27a5cdf94d7
[INFO] running `"docker" "start" "-a" "22f76afc60d99cbcdd038306c45a0b617076ff15d07e331cc674f27a5cdf94d7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/budget_app-06b2fea9d77416f3
[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" "22f76afc60d99cbcdd038306c45a0b617076ff15d07e331cc674f27a5cdf94d7"`
[INFO] running `"docker" "rm" "-f" "22f76afc60d99cbcdd038306c45a0b617076ff15d07e331cc674f27a5cdf94d7"`
[INFO] [stdout] 22f76afc60d99cbcdd038306c45a0b617076ff15d07e331cc674f27a5cdf94d7