Dec 18 03:14:53.912 INFO checking blt/prometheus_parsing_test against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 03:14:53.912 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/blt/prometheus_parsing_test:/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=forbid" "-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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 03:14:54.210 INFO [stdout] 79f997cdca32556f23189e8109235fcdb66cd3f784acd3cb6c2bee8823a40f35
Dec 18 03:14:54.212 INFO running `"docker" "start" "-a" "79f997cdca32556f23189e8109235fcdb66cd3f784acd3cb6c2bee8823a40f35"`
Dec 18 03:14:55.620 INFO [stderr]     Checking prometheus_parsing_test v0.1.0 (/opt/crater/workdir)
Dec 18 03:14:56.184 INFO [stderr] warning: unused variable: `block`
Dec 18 03:14:56.184 INFO [stderr]   --> src/main.rs:98:13
Dec 18 03:14:56.184 INFO [stderr]    |
Dec 18 03:14:56.184 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 18 03:14:56.184 INFO [stderr]    |             ^^^^^ help: consider using `_block` instead
Dec 18 03:14:56.184 INFO [stderr]    |
Dec 18 03:14:56.184 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 03:14:56.184 INFO [stderr] 
Dec 18 03:14:56.216 INFO [stderr] warning: unused variable: `block`
Dec 18 03:14:56.216 INFO [stderr]   --> src/main.rs:98:13
Dec 18 03:14:56.216 INFO [stderr]    |
Dec 18 03:14:56.216 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 18 03:14:56.216 INFO [stderr]    |             ^^^^^ help: consider using `_block` instead
Dec 18 03:14:56.216 INFO [stderr]    |
Dec 18 03:14:56.216 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 03:14:56.216 INFO [stderr] 
Dec 18 03:14:56.333 INFO [stderr] warning: variable does not need to be mutable
Dec 18 03:14:56.333 INFO [stderr]   --> src/main.rs:96:9
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr] 96 |     let mut blocks = Vec::new();
Dec 18 03:14:56.333 INFO [stderr]    |         ----^^^^^^
Dec 18 03:14:56.333 INFO [stderr]    |         |
Dec 18 03:14:56.333 INFO [stderr]    |         help: remove this `mut`
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 03:14:56.333 INFO [stderr] 
Dec 18 03:14:56.333 INFO [stderr] warning: variable does not need to be mutable
Dec 18 03:14:56.333 INFO [stderr]   --> src/main.rs:98:9
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 18 03:14:56.333 INFO [stderr]    |         ----^^^^^
Dec 18 03:14:56.333 INFO [stderr]    |         |
Dec 18 03:14:56.333 INFO [stderr]    |         help: remove this `mut`
Dec 18 03:14:56.333 INFO [stderr] 
Dec 18 03:14:56.333 INFO [stderr] warning: field is never used: `name`
Dec 18 03:14:56.333 INFO [stderr]   --> src/main.rs:34:5
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr] 34 |     name: Option<String>,
Dec 18 03:14:56.333 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 03:14:56.333 INFO [stderr] 
Dec 18 03:14:56.333 INFO [stderr] warning: field is never used: `description`
Dec 18 03:14:56.333 INFO [stderr]   --> src/main.rs:35:5
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr] 35 |     description: Option<String>,
Dec 18 03:14:56.333 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.333 INFO [stderr] 
Dec 18 03:14:56.333 INFO [stderr] warning: field is never used: `labels`
Dec 18 03:14:56.333 INFO [stderr]   --> src/main.rs:36:5
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr] 36 |     labels: Option<HashMap<String, String>>,
Dec 18 03:14:56.333 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.333 INFO [stderr] 
Dec 18 03:14:56.333 INFO [stderr] warning: field is never used: `aggregation`
Dec 18 03:14:56.333 INFO [stderr]   --> src/main.rs:37:5
Dec 18 03:14:56.333 INFO [stderr]    |
Dec 18 03:14:56.333 INFO [stderr] 37 |     aggregation: Option<PrometheusAggregation>,
Dec 18 03:14:56.333 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.333 INFO [stderr] 
Dec 18 03:14:56.333 INFO [stderr] warning: field is never used: `timestamp`
Dec 18 03:14:56.334 INFO [stderr]   --> src/main.rs:38:5
Dec 18 03:14:56.334 INFO [stderr]    |
Dec 18 03:14:56.334 INFO [stderr] 38 |     timestamp: Option<u32>,
Dec 18 03:14:56.334 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.334 INFO [stderr] 
Dec 18 03:14:56.334 INFO [stderr] warning: method is never used: `name`
Dec 18 03:14:56.334 INFO [stderr]   --> src/main.rs:52:5
Dec 18 03:14:56.334 INFO [stderr]    |
Dec 18 03:14:56.334 INFO [stderr] 52 |     fn name(&mut self, n: &str) -> () {
Dec 18 03:14:56.334 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.334 INFO [stderr] 
Dec 18 03:14:56.334 INFO [stderr] warning: method is never used: `description`
Dec 18 03:14:56.334 INFO [stderr]   --> src/main.rs:56:5
Dec 18 03:14:56.334 INFO [stderr]    |
Dec 18 03:14:56.334 INFO [stderr] 56 |     fn description(&mut self, d: &str) -> () {
Dec 18 03:14:56.334 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.334 INFO [stderr] 
Dec 18 03:14:56.334 INFO [stderr] warning: method is never used: `aggregation`
Dec 18 03:14:56.334 INFO [stderr]   --> src/main.rs:60:5
Dec 18 03:14:56.334 INFO [stderr]    |
Dec 18 03:14:56.334 INFO [stderr] 60 |     fn aggregation(&mut self, aggr: PrometheusAggregation) -> () {
Dec 18 03:14:56.334 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.334 INFO [stderr] 
Dec 18 03:14:56.334 INFO [stderr] warning: method is never used: `harden`
Dec 18 03:14:56.334 INFO [stderr]   --> src/main.rs:64:5
Dec 18 03:14:56.334 INFO [stderr]    |
Dec 18 03:14:56.334 INFO [stderr] 64 |     fn harden(self) -> PrometheusBlock {
Dec 18 03:14:56.334 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.334 INFO [stderr] 
Dec 18 03:14:56.368 INFO [stderr] warning: variable does not need to be mutable
Dec 18 03:14:56.368 INFO [stderr]   --> src/main.rs:96:9
Dec 18 03:14:56.368 INFO [stderr]    |
Dec 18 03:14:56.368 INFO [stderr] 96 |     let mut blocks = Vec::new();
Dec 18 03:14:56.368 INFO [stderr]    |         ----^^^^^^
Dec 18 03:14:56.368 INFO [stderr]    |         |
Dec 18 03:14:56.368 INFO [stderr]    |         help: remove this `mut`
Dec 18 03:14:56.368 INFO [stderr]    |
Dec 18 03:14:56.368 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 03:14:56.368 INFO [stderr] 
Dec 18 03:14:56.368 INFO [stderr] warning: variable does not need to be mutable
Dec 18 03:14:56.368 INFO [stderr]   --> src/main.rs:98:9
Dec 18 03:14:56.368 INFO [stderr]    |
Dec 18 03:14:56.368 INFO [stderr] 98 |     let mut block: SoftPrometheusBlock = SoftPrometheusBlock::new();
Dec 18 03:14:56.368 INFO [stderr]    |         ----^^^^^
Dec 18 03:14:56.368 INFO [stderr]    |         |
Dec 18 03:14:56.368 INFO [stderr]    |         help: remove this `mut`
Dec 18 03:14:56.368 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: field is never used: `name`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:34:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 34 |     name: Option<String>,
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: field is never used: `description`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:35:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 35 |     description: Option<String>,
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: field is never used: `labels`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:36:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 36 |     labels: Option<HashMap<String, String>>,
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: field is never used: `aggregation`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:37:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 37 |     aggregation: Option<PrometheusAggregation>,
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: field is never used: `timestamp`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:38:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 38 |     timestamp: Option<u32>,
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: method is never used: `name`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:52:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 52 |     fn name(&mut self, n: &str) -> () {
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: method is never used: `description`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:56:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 56 |     fn description(&mut self, d: &str) -> () {
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: method is never used: `aggregation`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:60:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 60 |     fn aggregation(&mut self, aggr: PrometheusAggregation) -> () {
Dec 18 03:14:56.393 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.393 INFO [stderr] 
Dec 18 03:14:56.393 INFO [stderr] warning: method is never used: `harden`
Dec 18 03:14:56.393 INFO [stderr]   --> src/main.rs:64:5
Dec 18 03:14:56.393 INFO [stderr]    |
Dec 18 03:14:56.393 INFO [stderr] 64 |     fn harden(self) -> PrometheusBlock {
Dec 18 03:14:56.394 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 03:14:56.394 INFO [stderr] 
Dec 18 03:14:56.440 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
Dec 18 03:14:57.020 INFO running `"docker" "inspect" "79f997cdca32556f23189e8109235fcdb66cd3f784acd3cb6c2bee8823a40f35"`
Dec 18 03:14:57.174 INFO running `"docker" "rm" "-f" "79f997cdca32556f23189e8109235fcdb66cd3f784acd3cb6c2bee8823a40f35"`
Dec 18 03:14:57.376 INFO [stdout] 79f997cdca32556f23189e8109235fcdb66cd3f784acd3cb6c2bee8823a40f35