Dec 04 21:44:28.968 INFO checking blt/prometheus_parsing_test against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 21:44:28.968 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 21:44:29.361 INFO [stdout] d958129ec8e138c3631919ba563deff3bf94c8e239a7efe30f40f0bcfc042b4f
Dec 04 21:44:29.363 INFO running `"docker" "start" "-a" "d958129ec8e138c3631919ba563deff3bf94c8e239a7efe30f40f0bcfc042b4f"`
Dec 04 21:44:31.451 INFO [stderr] usermod: no changes
Dec 04 21:44:31.563 INFO [stderr]     Checking prometheus_parsing_test v0.1.0 (/source)
Dec 04 21:44:32.219 INFO [stderr] warning: unused variable: `block`
Dec 04 21:44:32.219 INFO [stderr]   --> src/main.rs:98:13
Dec 04 21:44:32.219 INFO [stderr]    |
Dec 04 21:44:32.219 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 04 21:44:32.219 INFO [stderr]    |             ^^^^^ help: consider using `_block` instead
Dec 04 21:44:32.219 INFO [stderr]    |
Dec 04 21:44:32.219 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 21:44:32.219 INFO [stderr] 
Dec 04 21:44:32.435 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:44:32.435 INFO [stderr]   --> src/main.rs:96:9
Dec 04 21:44:32.435 INFO [stderr]    |
Dec 04 21:44:32.435 INFO [stderr] 96 |     let mut blocks = Vec::new();
Dec 04 21:44:32.435 INFO [stderr]    |         ----^^^^^^
Dec 04 21:44:32.435 INFO [stderr]    |         |
Dec 04 21:44:32.435 INFO [stderr]    |         help: remove this `mut`
Dec 04 21:44:32.435 INFO [stderr]    |
Dec 04 21:44:32.435 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 21:44:32.435 INFO [stderr] 
Dec 04 21:44:32.435 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:44:32.435 INFO [stderr]   --> src/main.rs:98:9
Dec 04 21:44:32.435 INFO [stderr]    |
Dec 04 21:44:32.435 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 04 21:44:32.435 INFO [stderr]    |         ----^^^^^
Dec 04 21:44:32.435 INFO [stderr]    |         |
Dec 04 21:44:32.435 INFO [stderr]    |         help: remove this `mut`
Dec 04 21:44:32.435 INFO [stderr] 
Dec 04 21:44:32.440 INFO [stderr] warning: field is never used: `name`
Dec 04 21:44:32.440 INFO [stderr]   --> src/main.rs:34:5
Dec 04 21:44:32.440 INFO [stderr]    |
Dec 04 21:44:32.440 INFO [stderr] 34 |     name: Option<String>,
Dec 04 21:44:32.440 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.440 INFO [stderr]    |
Dec 04 21:44:32.440 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 21:44:32.440 INFO [stderr] 
Dec 04 21:44:32.440 INFO [stderr] warning: field is never used: `description`
Dec 04 21:44:32.440 INFO [stderr]   --> src/main.rs:35:5
Dec 04 21:44:32.440 INFO [stderr]    |
Dec 04 21:44:32.440 INFO [stderr] 35 |     description: Option<String>,
Dec 04 21:44:32.440 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.440 INFO [stderr] 
Dec 04 21:44:32.440 INFO [stderr] warning: field is never used: `labels`
Dec 04 21:44:32.440 INFO [stderr]   --> src/main.rs:36:5
Dec 04 21:44:32.440 INFO [stderr]    |
Dec 04 21:44:32.440 INFO [stderr] 36 |     labels: Option<HashMap<String, String>>,
Dec 04 21:44:32.440 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.440 INFO [stderr] 
Dec 04 21:44:32.440 INFO [stderr] warning: field is never used: `aggregation`
Dec 04 21:44:32.440 INFO [stderr]   --> src/main.rs:37:5
Dec 04 21:44:32.440 INFO [stderr]    |
Dec 04 21:44:32.440 INFO [stderr] 37 |     aggregation: Option<PrometheusAggregation>,
Dec 04 21:44:32.440 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.440 INFO [stderr] 
Dec 04 21:44:32.440 INFO [stderr] warning: field is never used: `timestamp`
Dec 04 21:44:32.440 INFO [stderr]   --> src/main.rs:38:5
Dec 04 21:44:32.441 INFO [stderr]    |
Dec 04 21:44:32.441 INFO [stderr] 38 |     timestamp: Option<u32>,
Dec 04 21:44:32.441 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.441 INFO [stderr] 
Dec 04 21:44:32.441 INFO [stderr] warning: method is never used: `name`
Dec 04 21:44:32.441 INFO [stderr]   --> src/main.rs:52:5
Dec 04 21:44:32.441 INFO [stderr]    |
Dec 04 21:44:32.441 INFO [stderr] 52 |     fn name(&mut self, n: &str) -> () {
Dec 04 21:44:32.441 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.441 INFO [stderr] 
Dec 04 21:44:32.441 INFO [stderr] warning: method is never used: `description`
Dec 04 21:44:32.441 INFO [stderr]   --> src/main.rs:56:5
Dec 04 21:44:32.442 INFO [stderr]    |
Dec 04 21:44:32.442 INFO [stderr] 56 |     fn description(&mut self, d: &str) -> () {
Dec 04 21:44:32.442 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.442 INFO [stderr] 
Dec 04 21:44:32.442 INFO [stderr] warning: method is never used: `aggregation`
Dec 04 21:44:32.442 INFO [stderr]   --> src/main.rs:60:5
Dec 04 21:44:32.442 INFO [stderr]    |
Dec 04 21:44:32.442 INFO [stderr] 60 |     fn aggregation(&mut self, aggr: PrometheusAggregation) -> () {
Dec 04 21:44:32.443 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.443 INFO [stderr] 
Dec 04 21:44:32.443 INFO [stderr] warning: method is never used: `harden`
Dec 04 21:44:32.443 INFO [stderr]   --> src/main.rs:64:5
Dec 04 21:44:32.443 INFO [stderr]    |
Dec 04 21:44:32.443 INFO [stderr] 64 |     fn harden(self) -> PrometheusBlock {
Dec 04 21:44:32.444 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.444 INFO [stderr] 
Dec 04 21:44:32.576 INFO [stderr] warning: unused variable: `block`
Dec 04 21:44:32.576 INFO [stderr]   --> src/main.rs:98:13
Dec 04 21:44:32.576 INFO [stderr]    |
Dec 04 21:44:32.576 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 04 21:44:32.576 INFO [stderr]    |             ^^^^^ help: consider using `_block` instead
Dec 04 21:44:32.576 INFO [stderr]    |
Dec 04 21:44:32.576 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 21:44:32.576 INFO [stderr] 
Dec 04 21:44:32.707 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:44:32.707 INFO [stderr]   --> src/main.rs:96:9
Dec 04 21:44:32.707 INFO [stderr]    |
Dec 04 21:44:32.707 INFO [stderr] 96 |     let mut blocks = Vec::new();
Dec 04 21:44:32.707 INFO [stderr]    |         ----^^^^^^
Dec 04 21:44:32.707 INFO [stderr]    |         |
Dec 04 21:44:32.707 INFO [stderr]    |         help: remove this `mut`
Dec 04 21:44:32.707 INFO [stderr]    |
Dec 04 21:44:32.707 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 21:44:32.707 INFO [stderr] 
Dec 04 21:44:32.707 INFO [stderr] warning: variable does not need to be mutable
Dec 04 21:44:32.707 INFO [stderr]   --> src/main.rs:98:9
Dec 04 21:44:32.707 INFO [stderr]    |
Dec 04 21:44:32.707 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 04 21:44:32.707 INFO [stderr]    |         ----^^^^^
Dec 04 21:44:32.707 INFO [stderr]    |         |
Dec 04 21:44:32.707 INFO [stderr]    |         help: remove this `mut`
Dec 04 21:44:32.707 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: field is never used: `name`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:34:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 34 |     name: Option<String>,
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: field is never used: `description`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:35:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 35 |     description: Option<String>,
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: field is never used: `labels`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:36:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 36 |     labels: Option<HashMap<String, String>>,
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: field is never used: `aggregation`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:37:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 37 |     aggregation: Option<PrometheusAggregation>,
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: field is never used: `timestamp`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:38:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 38 |     timestamp: Option<u32>,
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: method is never used: `name`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:52:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 52 |     fn name(&mut self, n: &str) -> () {
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: method is never used: `description`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:56:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 56 |     fn description(&mut self, d: &str) -> () {
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: method is never used: `aggregation`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:60:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 60 |     fn aggregation(&mut self, aggr: PrometheusAggregation) -> () {
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.712 INFO [stderr] warning: method is never used: `harden`
Dec 04 21:44:32.712 INFO [stderr]   --> src/main.rs:64:5
Dec 04 21:44:32.712 INFO [stderr]    |
Dec 04 21:44:32.712 INFO [stderr] 64 |     fn harden(self) -> PrometheusBlock {
Dec 04 21:44:32.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 21:44:32.712 INFO [stderr] 
Dec 04 21:44:32.742 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
Dec 04 21:44:32.745 INFO [stderr] su: No module specific data is present
Dec 04 21:44:33.463 INFO running `"docker" "inspect" "d958129ec8e138c3631919ba563deff3bf94c8e239a7efe30f40f0bcfc042b4f"`
Dec 04 21:44:33.805 INFO running `"docker" "rm" "-f" "d958129ec8e138c3631919ba563deff3bf94c8e239a7efe30f40f0bcfc042b4f"`
Dec 04 21:44:33.987 INFO [stdout] d958129ec8e138c3631919ba563deff3bf94c8e239a7efe30f40f0bcfc042b4f