[INFO] updating cached repository stusmall/income_tax_graphic
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stusmall/income_tax_graphic
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stusmall/income_tax_graphic" "work/ex/beta-1.38-1/sources/1.37.0/gh/stusmall/income_tax_graphic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/stusmall/income_tax_graphic'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stusmall/income_tax_graphic" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stusmall/income_tax_graphic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stusmall/income_tax_graphic'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c32485f045d71d2e4e4105dabf3cfb3db3e00d28
[INFO] sha for GitHub repo stusmall/income_tax_graphic: c32485f045d71d2e4e4105dabf3cfb3db3e00d28
[INFO] validating manifest of stusmall/income_tax_graphic 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 stusmall/income_tax_graphic 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 stusmall/income_tax_graphic
[INFO] finished frobbing stusmall/income_tax_graphic
[INFO] frobbed toml for stusmall/income_tax_graphic written to work/ex/beta-1.38-1/sources/1.37.0/gh/stusmall/income_tax_graphic/Cargo.toml
[INFO] started frobbing stusmall/income_tax_graphic
[INFO] finished frobbing stusmall/income_tax_graphic
[INFO] frobbed toml for stusmall/income_tax_graphic written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stusmall/income_tax_graphic/Cargo.toml
[INFO] crate stusmall/income_tax_graphic 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 stusmall/income_tax_graphic 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-2/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/stusmall/income_tax_graphic:/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] 74bb05773e79e4173adaffba29bd32c22f369f923877eac91400b7da5818ba13
[INFO] running `"docker" "start" "-a" "74bb05773e79e4173adaffba29bd32c22f369f923877eac91400b7da5818ba13"`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling termcolor v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]    Compiling csv v1.0.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling env_logger v0.5.12
[INFO] [stderr]    Compiling income_tax_graphic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tax_brackets.rs:63:33
[INFO] [stderr]    |
[INFO] [stderr] 63 |                             let mut vec = entry.get_mut();
[INFO] [stderr]    |                                 ----^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tax`
[INFO] [stderr]   --> src/dollars.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn tax(&self, rate: f32) -> Dollars {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_csv`
[INFO] [stderr]   --> src/lib.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn write_csv(info: &Vec<(Dollars,Vec<(u32,f32)>)>){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.64s
[INFO] running `"docker" "inspect" "74bb05773e79e4173adaffba29bd32c22f369f923877eac91400b7da5818ba13"`
[INFO] running `"docker" "rm" "-f" "74bb05773e79e4173adaffba29bd32c22f369f923877eac91400b7da5818ba13"`
[INFO] [stdout] 74bb05773e79e4173adaffba29bd32c22f369f923877eac91400b7da5818ba13
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/stusmall/income_tax_graphic:/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] 56ec7a58cf931e2c6a963dd1a7ddf93da5cb32c3cf8087b272ff88116fb04778
[INFO] running `"docker" "start" "-a" "56ec7a58cf931e2c6a963dd1a7ddf93da5cb32c3cf8087b272ff88116fb04778"`
[INFO] [stderr]    Compiling income_tax_graphic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tax_brackets.rs:63:33
[INFO] [stderr]    |
[INFO] [stderr] 63 |                             let mut vec = entry.get_mut();
[INFO] [stderr]    |                                 ----^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tax`
[INFO] [stderr]   --> src/dollars.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn tax(&self, rate: f32) -> Dollars {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_csv`
[INFO] [stderr]   --> src/lib.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn write_csv(info: &Vec<(Dollars,Vec<(u32,f32)>)>){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `"docker" "inspect" "56ec7a58cf931e2c6a963dd1a7ddf93da5cb32c3cf8087b272ff88116fb04778"`
[INFO] running `"docker" "rm" "-f" "56ec7a58cf931e2c6a963dd1a7ddf93da5cb32c3cf8087b272ff88116fb04778"`
[INFO] [stdout] 56ec7a58cf931e2c6a963dd1a7ddf93da5cb32c3cf8087b272ff88116fb04778
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/stusmall/income_tax_graphic:/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] c2e32bf73ddcd62e757aba43b7a6e75f71ddd8ccf65a94b77ccf499c937a3273
[INFO] running `"docker" "start" "-a" "c2e32bf73ddcd62e757aba43b7a6e75f71ddd8ccf65a94b77ccf499c937a3273"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/income_tax_graphic-0cc0019d684e2bbb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test inflation::test_inflation_conversion ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/income_tax_graphic-f44d6d43670fa02f
[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]    Doc-tests income_tax_graphic
[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" "c2e32bf73ddcd62e757aba43b7a6e75f71ddd8ccf65a94b77ccf499c937a3273"`
[INFO] running `"docker" "rm" "-f" "c2e32bf73ddcd62e757aba43b7a6e75f71ddd8ccf65a94b77ccf499c937a3273"`
[INFO] [stdout] c2e32bf73ddcd62e757aba43b7a6e75f71ddd8ccf65a94b77ccf499c937a3273