Dec 18 08:12:33.993 INFO checking CasperGN/RustChain against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:12:33.993 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/CasperGN/RustChain:/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 08:12:34.200 INFO [stdout] f9d5954adb2149e984bf50df9f699616814cd4b774bd1365d1221136b3868cf7
Dec 18 08:12:34.206 INFO running `"docker" "start" "-a" "f9d5954adb2149e984bf50df9f699616814cd4b774bd1365d1221136b3868cf7"`
Dec 18 08:12:35.025 INFO [stderr]     Checking chrono v0.4.0
Dec 18 08:12:36.844 INFO [stderr]     Checking RustChain v0.1.0 (/opt/crater/workdir)
Dec 18 08:12:37.219 INFO [stderr] warning: unused import: `decode`
Dec 18 08:12:37.219 INFO [stderr]   --> src/main.rs:20:22
Dec 18 08:12:37.219 INFO [stderr]    |
Dec 18 08:12:37.219 INFO [stderr] 20 | use base64::{encode, decode};
Dec 18 08:12:37.219 INFO [stderr]    |                      ^^^^^^
Dec 18 08:12:37.219 INFO [stderr]    |
Dec 18 08:12:37.219 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 08:12:37.219 INFO [stderr] 
Dec 18 08:12:37.242 INFO [stderr] warning: unused import: `decode`
Dec 18 08:12:37.242 INFO [stderr]   --> src/main.rs:20:22
Dec 18 08:12:37.242 INFO [stderr]    |
Dec 18 08:12:37.242 INFO [stderr] 20 | use base64::{encode, decode};
Dec 18 08:12:37.242 INFO [stderr]    |                      ^^^^^^
Dec 18 08:12:37.242 INFO [stderr]    |
Dec 18 08:12:37.242 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 08:12:37.242 INFO [stderr] 
Dec 18 08:12:37.265 INFO [stderr] warning: unused variable: `encVec`
Dec 18 08:12:37.265 INFO [stderr]   --> src/main.rs:30:13
Dec 18 08:12:37.265 INFO [stderr]    |
Dec 18 08:12:37.265 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 18 08:12:37.265 INFO [stderr]    |             ^^^^^^ help: consider using `_encVec` instead
Dec 18 08:12:37.265 INFO [stderr]    |
Dec 18 08:12:37.265 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:12:37.265 INFO [stderr] 
Dec 18 08:12:37.270 INFO [stderr] warning: unused variable: `newHashedBlock`
Dec 18 08:12:37.270 INFO [stderr]   --> src/main.rs:83:9
Dec 18 08:12:37.270 INFO [stderr]    |
Dec 18 08:12:37.270 INFO [stderr] 83 |     let newHashedBlock = generateHash(newBlockTup);
Dec 18 08:12:37.270 INFO [stderr]    |         ^^^^^^^^^^^^^^ help: consider using `_newHashedBlock` instead
Dec 18 08:12:37.270 INFO [stderr] 
Dec 18 08:12:37.284 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:12:37.284 INFO [stderr]   --> src/main.rs:30:9
Dec 18 08:12:37.284 INFO [stderr]    |
Dec 18 08:12:37.284 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 18 08:12:37.284 INFO [stderr]    |         ----^^^^^^
Dec 18 08:12:37.284 INFO [stderr]    |         |
Dec 18 08:12:37.284 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:12:37.284 INFO [stderr]    |
Dec 18 08:12:37.284 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:12:37.284 INFO [stderr] 
Dec 18 08:12:37.288 INFO [stderr] warning: unused variable: `encVec`
Dec 18 08:12:37.288 INFO [stderr]   --> src/main.rs:30:13
Dec 18 08:12:37.288 INFO [stderr]    |
Dec 18 08:12:37.288 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 18 08:12:37.288 INFO [stderr]    |             ^^^^^^ help: consider using `_encVec` instead
Dec 18 08:12:37.288 INFO [stderr]    |
Dec 18 08:12:37.288 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:12:37.288 INFO [stderr] 
Dec 18 08:12:37.288 INFO [stderr] warning: unused variable: `newHashedBlock`
Dec 18 08:12:37.288 INFO [stderr]   --> src/main.rs:83:9
Dec 18 08:12:37.288 INFO [stderr]    |
Dec 18 08:12:37.288 INFO [stderr] 83 |     let newHashedBlock = generateHash(newBlockTup);
Dec 18 08:12:37.288 INFO [stderr]    |         ^^^^^^^^^^^^^^ help: consider using `_newHashedBlock` instead
Dec 18 08:12:37.288 INFO [stderr] 
Dec 18 08:12:37.295 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:12:37.295 INFO [stderr]   --> src/main.rs:30:9
Dec 18 08:12:37.295 INFO [stderr]    |
Dec 18 08:12:37.295 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 18 08:12:37.295 INFO [stderr]    |         ----^^^^^^
Dec 18 08:12:37.295 INFO [stderr]    |         |
Dec 18 08:12:37.295 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:12:37.295 INFO [stderr]    |
Dec 18 08:12:37.295 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:12:37.295 INFO [stderr] 
Dec 18 08:12:37.319 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
Dec 18 08:12:37.579 INFO running `"docker" "inspect" "f9d5954adb2149e984bf50df9f699616814cd4b774bd1365d1221136b3868cf7"`
Dec 18 08:12:37.680 INFO running `"docker" "rm" "-f" "f9d5954adb2149e984bf50df9f699616814cd4b774bd1365d1221136b3868cf7"`
Dec 18 08:12:37.804 INFO [stdout] f9d5954adb2149e984bf50df9f699616814cd4b774bd1365d1221136b3868cf7