[INFO] cloning repository https://github.com/stusmall/income_tax_graphic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stusmall/income_tax_graphic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstusmall%2Fincome_tax_graphic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstusmall%2Fincome_tax_graphic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c32485f045d71d2e4e4105dabf3cfb3db3e00d28
[INFO] checking stusmall/income_tax_graphic against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstusmall%2Fincome_tax_graphic" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stusmall/income_tax_graphic on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stusmall/income_tax_graphic
[INFO] finished tweaking git repo https://github.com/stusmall/income_tax_graphic
[INFO] tweaked toml for git repo https://github.com/stusmall/income_tax_graphic written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/stusmall/income_tax_graphic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.6.5
[INFO] [stderr]   Downloaded log v0.4.3
[INFO] [stderr]   Downloaded cfg-if v0.1.4
[INFO] [stderr]   Downloaded env_logger v0.5.12
[INFO] [stderr]   Downloaded csv v1.0.0
[INFO] [stderr]   Downloaded wincolor v1.0.0
[INFO] [stderr]   Downloaded syn v0.14.7
[INFO] [stderr]   Downloaded termcolor v1.0.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cbb1db178e94ee32230b2916699f5839c7fa1daa541906bd19f067987f7bf66
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8cbb1db178e94ee32230b2916699f5839c7fa1daa541906bd19f067987f7bf66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cbb1db178e94ee32230b2916699f5839c7fa1daa541906bd19f067987f7bf66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cbb1db178e94ee32230b2916699f5839c7fa1daa541906bd19f067987f7bf66", kill_on_drop: false }`
[INFO] [stdout] 8cbb1db178e94ee32230b2916699f5839c7fa1daa541906bd19f067987f7bf66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] add27d6112836fa73fee9fccd807722d60a3dfd38b77058d790a71f72b1ac09e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "add27d6112836fa73fee9fccd807722d60a3dfd38b77058d790a71f72b1ac09e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking termcolor v1.0.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling quote v0.6.5
[INFO] [stderr]    Compiling syn v0.14.7
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking regex v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking env_logger v0.5.12
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking income_tax_graphic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tax_brackets.rs:63:33
[INFO] [stdout]    |
[INFO] [stdout] 63 | ...                   let mut vec = entry.get_mut();
[INFO] [stdout]    |                           ----^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tax`
[INFO] [stdout]   --> src/dollars.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn tax(&self, rate: f32) -> Dollars {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_csv`
[INFO] [stdout]   --> src/lib.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn write_csv(info: &Vec<(Dollars,Vec<(u32,f32)>)>){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tax_brackets.rs:63:33
[INFO] [stdout]    |
[INFO] [stdout] 63 | ...                   let mut vec = entry.get_mut();
[INFO] [stdout]    |                           ----^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tax`
[INFO] [stdout]   --> src/dollars.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn tax(&self, rate: f32) -> Dollars {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_csv`
[INFO] [stdout]   --> src/lib.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn write_csv(info: &Vec<(Dollars,Vec<(u32,f32)>)>){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.77s
[INFO] running `Command { std: "docker" "inspect" "add27d6112836fa73fee9fccd807722d60a3dfd38b77058d790a71f72b1ac09e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add27d6112836fa73fee9fccd807722d60a3dfd38b77058d790a71f72b1ac09e", kill_on_drop: false }`
[INFO] [stdout] add27d6112836fa73fee9fccd807722d60a3dfd38b77058d790a71f72b1ac09e