Dec 05 03:08:42.619 INFO checking CasperGN/RustChain against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 03:08:42.619 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 05 03:08:43.015 INFO [stdout] 3ac301958f4ffae327c1b774a68dd33a00b5779d07d983ee593ce64e89ea3280
Dec 05 03:08:43.021 INFO running `"docker" "start" "-a" "3ac301958f4ffae327c1b774a68dd33a00b5779d07d983ee593ce64e89ea3280"`
Dec 05 03:08:44.936 INFO [stderr] usermod: no changes
Dec 05 03:08:45.095 INFO [stderr]     Checking RustChain v0.1.0 (/source)
Dec 05 03:08:46.718 INFO [stderr] warning: unused import: `decode`
Dec 05 03:08:46.719 INFO [stderr]   --> src/main.rs:20:22
Dec 05 03:08:46.719 INFO [stderr]    |
Dec 05 03:08:46.719 INFO [stderr] 20 | use base64::{encode, decode};
Dec 05 03:08:46.719 INFO [stderr]    |                      ^^^^^^
Dec 05 03:08:46.719 INFO [stderr]    |
Dec 05 03:08:46.719 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 03:08:46.719 INFO [stderr] 
Dec 05 03:08:46.771 INFO [stderr] warning: unused import: `decode`
Dec 05 03:08:46.771 INFO [stderr]   --> src/main.rs:20:22
Dec 05 03:08:46.771 INFO [stderr]    |
Dec 05 03:08:46.771 INFO [stderr] 20 | use base64::{encode, decode};
Dec 05 03:08:46.771 INFO [stderr]    |                      ^^^^^^
Dec 05 03:08:46.771 INFO [stderr]    |
Dec 05 03:08:46.771 INFO [stderr] warning: unused variable: `encVec`
Dec 05 03:08:46.771 INFO [stderr]   --> src/main.rs:30:13
Dec 05 03:08:46.771 INFO [stderr]    |
Dec 05 03:08:46.771 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 05 03:08:46.771 INFO [stderr]    |             ^^^^^^ help: consider using `_encVec` instead
Dec 05 03:08:46.771 INFO [stderr]    |
Dec 05 03:08:46.771 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 03:08:46.771 INFO [stderr] 
Dec 05 03:08:46.771 INFO [stderr] warning: unused variable: `newHashedBlock`
Dec 05 03:08:46.771 INFO [stderr]   --> src/main.rs:83:9
Dec 05 03:08:46.771 INFO [stderr]    |
Dec 05 03:08:46.771 INFO [stderr] 83 |     let newHashedBlock = generateHash(newBlockTup);
Dec 05 03:08:46.771 INFO [stderr]    |         ^^^^^^^^^^^^^^ help: consider using `_newHashedBlock` instead
Dec 05 03:08:46.771 INFO [stderr] 
Dec 05 03:08:46.771 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 03:08:46.771 INFO [stderr] 
Dec 05 03:08:46.779 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:08:46.779 INFO [stderr]   --> src/main.rs:30:9
Dec 05 03:08:46.779 INFO [stderr]    |
Dec 05 03:08:46.779 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 05 03:08:46.779 INFO [stderr]    |         ----^^^^^^
Dec 05 03:08:46.779 INFO [stderr]    |         |
Dec 05 03:08:46.779 INFO [stderr]    |         help: remove this `mut`
Dec 05 03:08:46.779 INFO [stderr]    |
Dec 05 03:08:46.779 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 03:08:46.779 INFO [stderr] 
Dec 05 03:08:46.831 INFO [stderr] warning: unused variable: `encVec`
Dec 05 03:08:46.831 INFO [stderr]   --> src/main.rs:30:13
Dec 05 03:08:46.831 INFO [stderr]    |
Dec 05 03:08:46.831 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 05 03:08:46.831 INFO [stderr]    |             ^^^^^^ help: consider using `_encVec` instead
Dec 05 03:08:46.831 INFO [stderr]    |
Dec 05 03:08:46.831 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 03:08:46.831 INFO [stderr] 
Dec 05 03:08:46.831 INFO [stderr] warning: unused variable: `newHashedBlock`
Dec 05 03:08:46.831 INFO [stderr]   --> src/main.rs:83:9
Dec 05 03:08:46.831 INFO [stderr]    |
Dec 05 03:08:46.831 INFO [stderr] 83 |     let newHashedBlock = generateHash(newBlockTup);
Dec 05 03:08:46.831 INFO [stderr]    |         ^^^^^^^^^^^^^^ help: consider using `_newHashedBlock` instead
Dec 05 03:08:46.831 INFO [stderr] 
Dec 05 03:08:46.839 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:08:46.839 INFO [stderr]   --> src/main.rs:30:9
Dec 05 03:08:46.839 INFO [stderr]    |
Dec 05 03:08:46.839 INFO [stderr] 30 |     let mut encVec: Vec<u8> = Vec::new();
Dec 05 03:08:46.839 INFO [stderr]    |         ----^^^^^^
Dec 05 03:08:46.839 INFO [stderr]    |         |
Dec 05 03:08:46.839 INFO [stderr]    |         help: remove this `mut`
Dec 05 03:08:46.839 INFO [stderr]    |
Dec 05 03:08:46.839 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 03:08:46.839 INFO [stderr] 
Dec 05 03:08:46.857 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
Dec 05 03:08:46.861 INFO [stderr] su: No module specific data is present
Dec 05 03:08:47.144 INFO running `"docker" "inspect" "3ac301958f4ffae327c1b774a68dd33a00b5779d07d983ee593ce64e89ea3280"`
Dec 05 03:08:47.220 INFO running `"docker" "rm" "-f" "3ac301958f4ffae327c1b774a68dd33a00b5779d07d983ee593ce64e89ea3280"`
Dec 05 03:08:47.349 INFO [stdout] 3ac301958f4ffae327c1b774a68dd33a00b5779d07d983ee593ce64e89ea3280