Dec 12 00:43:10.740 INFO checking RCasatta/integer-compression against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 00:43:10.740 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 00:43:11.220 INFO [stdout] 59a5152b2db294d53b1735f23a1f8cec18f111d52553e493f66bcd8467e57649
Dec 12 00:43:11.225 INFO running `"docker" "start" "-a" "59a5152b2db294d53b1735f23a1f8cec18f111d52553e493f66bcd8467e57649"`
Dec 12 00:43:12.815 INFO [stderr] usermod: no changes
Dec 12 00:43:12.936 INFO [stderr]     Checking integer-compression v0.1.0 (/source)
Dec 12 00:43:15.508 INFO [stderr] warning: unused variable: `buffer`
Dec 12 00:43:15.508 INFO [stderr]   --> examples/utxo.rs:14:13
Dec 12 00:43:15.508 INFO [stderr]    |
Dec 12 00:43:15.508 INFO [stderr] 14 |     let mut buffer = String::new();
Dec 12 00:43:15.508 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Dec 12 00:43:15.508 INFO [stderr]    |
Dec 12 00:43:15.508 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 00:43:15.508 INFO [stderr] 
Dec 12 00:43:15.523 INFO [stderr] warning: variable does not need to be mutable
Dec 12 00:43:15.523 INFO [stderr]   --> examples/utxo.rs:14:9
Dec 12 00:43:15.523 INFO [stderr]    |
Dec 12 00:43:15.523 INFO [stderr] 14 |     let mut buffer = String::new();
Dec 12 00:43:15.523 INFO [stderr]    |         ----^^^^^^
Dec 12 00:43:15.523 INFO [stderr]    |         |
Dec 12 00:43:15.523 INFO [stderr]    |         help: remove this `mut`
Dec 12 00:43:15.523 INFO [stderr]    |
Dec 12 00:43:15.523 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 00:43:15.523 INFO [stderr] 
Dec 12 00:43:15.752 INFO [stderr] warning: unused import: `std::cmp::Ordering`
Dec 12 00:43:15.752 INFO [stderr]  --> src/main.rs:8:5
Dec 12 00:43:15.752 INFO [stderr]   |
Dec 12 00:43:15.752 INFO [stderr] 8 | use std::cmp::Ordering;
Dec 12 00:43:15.752 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 00:43:15.752 INFO [stderr]   |
Dec 12 00:43:15.752 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:43:15.752 INFO [stderr] 
Dec 12 00:43:16.022 INFO [stderr] warning: unused import: `std::cmp::Ordering`
Dec 12 00:43:16.022 INFO [stderr]  --> src/main.rs:8:5
Dec 12 00:43:16.022 INFO [stderr]   |
Dec 12 00:43:16.023 INFO [stderr] 8 | use std::cmp::Ordering;
Dec 12 00:43:16.023 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 00:43:16.023 INFO [stderr]   |
Dec 12 00:43:16.023 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:43:16.024 INFO [stderr] 
Dec 12 00:43:16.056 INFO [stderr] warning: function `init_U40_random_vec` should have a snake case name such as `init_u40_random_vec`
Dec 12 00:43:16.057 INFO [stderr]    --> src/main.rs:171:1
Dec 12 00:43:16.057 INFO [stderr]     |
Dec 12 00:43:16.057 INFO [stderr] 171 | / fn init_U40_random_vec(n : usize) -> Vec<U40>{
Dec 12 00:43:16.057 INFO [stderr] 172 | |     let mut rng = rand::thread_rng();
Dec 12 00:43:16.058 INFO [stderr] 173 | |     let mut vec = Vec::new();
Dec 12 00:43:16.058 INFO [stderr] 174 | |     for _i in 0..n {
Dec 12 00:43:16.058 INFO [stderr] ...   |
Dec 12 00:43:16.058 INFO [stderr] 177 | |     vec
Dec 12 00:43:16.058 INFO [stderr] 178 | | }
Dec 12 00:43:16.058 INFO [stderr]     | |_^
Dec 12 00:43:16.058 INFO [stderr]     |
Dec 12 00:43:16.058 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 12 00:43:16.058 INFO [stderr] 
Dec 12 00:43:16.340 INFO [stderr] warning: function `init_U40_random_vec` should have a snake case name such as `init_u40_random_vec`
Dec 12 00:43:16.341 INFO [stderr]    --> src/main.rs:171:1
Dec 12 00:43:16.341 INFO [stderr]     |
Dec 12 00:43:16.341 INFO [stderr] 171 | / fn init_U40_random_vec(n : usize) -> Vec<U40>{
Dec 12 00:43:16.341 INFO [stderr] 172 | |     let mut rng = rand::thread_rng();
Dec 12 00:43:16.342 INFO [stderr] 173 | |     let mut vec = Vec::new();
Dec 12 00:43:16.342 INFO [stderr] 174 | |     for _i in 0..n {
Dec 12 00:43:16.342 INFO [stderr] ...   |
Dec 12 00:43:16.342 INFO [stderr] 177 | |     vec
Dec 12 00:43:16.343 INFO [stderr] 178 | | }
Dec 12 00:43:16.343 INFO [stderr]     | |_^
Dec 12 00:43:16.343 INFO [stderr]     |
Dec 12 00:43:16.343 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 12 00:43:16.343 INFO [stderr] 
Dec 12 00:43:16.343 INFO [stderr] warning: function `test_U40` should have a snake case name such as `test_u40`
Dec 12 00:43:16.343 INFO [stderr]    --> src/main.rs:189:5
Dec 12 00:43:16.343 INFO [stderr]     |
Dec 12 00:43:16.343 INFO [stderr] 189 | /     fn test_U40() {
Dec 12 00:43:16.343 INFO [stderr] 190 | |
Dec 12 00:43:16.343 INFO [stderr] 191 | |         assert_eq!(5, mem::size_of::<U40>());
Dec 12 00:43:16.343 INFO [stderr] 192 | |
Dec 12 00:43:16.343 INFO [stderr] ...   |
Dec 12 00:43:16.343 INFO [stderr] 219 | |         assert_eq!(set.len(),100);
Dec 12 00:43:16.343 INFO [stderr] 220 | |     }
Dec 12 00:43:16.343 INFO [stderr]     | |_____^
Dec 12 00:43:16.343 INFO [stderr] 
Dec 12 00:43:16.367 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.52s
Dec 12 00:43:16.376 INFO [stderr] su: No module specific data is present
Dec 12 00:43:17.138 INFO running `"docker" "inspect" "59a5152b2db294d53b1735f23a1f8cec18f111d52553e493f66bcd8467e57649"`
Dec 12 00:43:17.393 INFO running `"docker" "rm" "-f" "59a5152b2db294d53b1735f23a1f8cec18f111d52553e493f66bcd8467e57649"`
Dec 12 00:43:17.747 INFO [stdout] 59a5152b2db294d53b1735f23a1f8cec18f111d52553e493f66bcd8467e57649