Nov 28 11:57:14.936 INFO checking Noah-Kennedy/rust_ack against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 11:57:14.936 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 11:57:15.138 INFO [stdout] cd20fb849394ce77fea4dd62f85c22564f43501536d27dc56afcdf7dc940f63f
Nov 28 11:57:15.140 INFO running `"docker" "start" "-a" "cd20fb849394ce77fea4dd62f85c22564f43501536d27dc56afcdf7dc940f63f"`
Nov 28 11:57:15.816 INFO [stderr] usermod: no changes
Nov 28 11:57:15.856 INFO [stderr]     Checking rust_ack v0.1.0 (/source)
Nov 28 11:57:16.215 INFO [stderr] warning: unused import: `std::time::Instant`
Nov 28 11:57:16.215 INFO [stderr]  --> src/main.rs:1:5
Nov 28 11:57:16.215 INFO [stderr]   |
Nov 28 11:57:16.215 INFO [stderr] 1 | use std::time::Instant;
Nov 28 11:57:16.215 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 28 11:57:16.215 INFO [stderr]   |
Nov 28 11:57:16.215 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 11:57:16.215 INFO [stderr] 
Nov 28 11:57:16.215 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 11:57:16.215 INFO [stderr]  --> src/main.rs:2:5
Nov 28 11:57:16.215 INFO [stderr]   |
Nov 28 11:57:16.215 INFO [stderr] 2 | use std::collections::HashMap;
Nov 28 11:57:16.215 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 11:57:16.215 INFO [stderr] 
Nov 28 11:57:16.257 INFO [stderr] warning: unused variable: `i`
Nov 28 11:57:16.257 INFO [stderr]  --> src/ackermann_implementations/hyper_ack.rs:9:17
Nov 28 11:57:16.257 INFO [stderr]   |
Nov 28 11:57:16.258 INFO [stderr] 9 |             for i in 1..b {
Nov 28 11:57:16.258 INFO [stderr]   |                 ^ help: consider using `_i` instead
Nov 28 11:57:16.258 INFO [stderr]   |
Nov 28 11:57:16.258 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 11:57:16.259 INFO [stderr] 
Nov 28 11:57:16.259 INFO [stderr] warning: unused variable: `sample_size`
Nov 28 11:57:16.259 INFO [stderr]  --> src/main.rs:8:9
Nov 28 11:57:16.259 INFO [stderr]   |
Nov 28 11:57:16.260 INFO [stderr] 8 |     let sample_size = 1000;
Nov 28 11:57:16.260 INFO [stderr]   |         ^^^^^^^^^^^ help: consider using `_sample_size` instead
Nov 28 11:57:16.260 INFO [stderr] 
Nov 28 11:57:16.260 INFO [stderr] warning: unused variable: `m`
Nov 28 11:57:16.261 INFO [stderr]  --> src/main.rs:9:9
Nov 28 11:57:16.261 INFO [stderr]   |
Nov 28 11:57:16.261 INFO [stderr] 9 |     let m = 3;
Nov 28 11:57:16.262 INFO [stderr]   |         ^ help: consider using `_m` instead
Nov 28 11:57:16.262 INFO [stderr] 
Nov 28 11:57:16.262 INFO [stderr] warning: unused variable: `n`
Nov 28 11:57:16.262 INFO [stderr]   --> src/main.rs:10:9
Nov 28 11:57:16.263 INFO [stderr]    |
Nov 28 11:57:16.263 INFO [stderr] 10 |     let n = 8;
Nov 28 11:57:16.263 INFO [stderr]    |         ^ help: consider using `_n` instead
Nov 28 11:57:16.263 INFO [stderr] 
Nov 28 11:57:16.264 INFO [stderr] warning: unused variable: `printing`
Nov 28 11:57:16.264 INFO [stderr]   --> src/main.rs:11:9
Nov 28 11:57:16.264 INFO [stderr]    |
Nov 28 11:57:16.264 INFO [stderr] 11 |     let printing = false;
Nov 28 11:57:16.265 INFO [stderr]    |         ^^^^^^^^ help: consider using `_printing` instead
Nov 28 11:57:16.265 INFO [stderr] 
Nov 28 11:57:16.270 INFO [stderr] warning: function is never used: `benchmark_ack`
Nov 28 11:57:16.271 INFO [stderr]   --> src/benchmarking/mod.rs:3:1
Nov 28 11:57:16.271 INFO [stderr]    |
Nov 28 11:57:16.271 INFO [stderr] 3  | / pub fn benchmark_ack(fun: fn(u64, u64) -> u64, name: &str, sample_size: u64, m: u64, n: u64,
Nov 28 11:57:16.271 INFO [stderr] 4  | |                  printing: bool) {
Nov 28 11:57:16.272 INFO [stderr] 5  | |     let mut total: f64 = 0.0;
Nov 28 11:57:16.272 INFO [stderr] 6  | |     for i in 0..sample_size {
Nov 28 11:57:16.272 INFO [stderr] ...  |
Nov 28 11:57:16.273 INFO [stderr] 29 | |     println!("{}({}, {}):\nSample Size:\t{}\nAverage Time:\t{}", name, m, n, sample_size, average);
Nov 28 11:57:16.273 INFO [stderr] 30 | | }
Nov 28 11:57:16.273 INFO [stderr]    | |_^
Nov 28 11:57:16.274 INFO [stderr]    |
Nov 28 11:57:16.276 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 11:57:16.276 INFO [stderr] 
Nov 28 11:57:16.276 INFO [stderr] warning: function is never used: `basic_ack`
Nov 28 11:57:16.276 INFO [stderr]  --> src/ackermann_implementations/basic_ack.rs:1:1
Nov 28 11:57:16.276 INFO [stderr]   |
Nov 28 11:57:16.276 INFO [stderr] 1 | pub fn basic_ack(m: u64, n: u64) -> u64 {
Nov 28 11:57:16.276 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 11:57:16.276 INFO [stderr] 
Nov 28 11:57:16.308 INFO [stderr] warning: unused import: `std::time::Instant`
Nov 28 11:57:16.308 INFO [stderr]  --> src/main.rs:1:5
Nov 28 11:57:16.308 INFO [stderr]   |
Nov 28 11:57:16.308 INFO [stderr] 1 | use std::time::Instant;
Nov 28 11:57:16.308 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 28 11:57:16.308 INFO [stderr]   |
Nov 28 11:57:16.308 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 11:57:16.308 INFO [stderr] 
Nov 28 11:57:16.308 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 11:57:16.308 INFO [stderr]  --> src/main.rs:2:5
Nov 28 11:57:16.308 INFO [stderr]   |
Nov 28 11:57:16.308 INFO [stderr] 2 | use std::collections::HashMap;
Nov 28 11:57:16.308 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 11:57:16.308 INFO [stderr] 
Nov 28 11:57:16.440 INFO [stderr] warning: unused variable: `i`
Nov 28 11:57:16.440 INFO [stderr]  --> src/ackermann_implementations/hyper_ack.rs:9:17
Nov 28 11:57:16.440 INFO [stderr]   |
Nov 28 11:57:16.440 INFO [stderr] 9 |             for i in 1..b {
Nov 28 11:57:16.440 INFO [stderr]   |                 ^ help: consider using `_i` instead
Nov 28 11:57:16.440 INFO [stderr]   |
Nov 28 11:57:16.440 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 11:57:16.440 INFO [stderr] 
Nov 28 11:57:16.440 INFO [stderr] warning: unused variable: `sample_size`
Nov 28 11:57:16.440 INFO [stderr]  --> src/main.rs:8:9
Nov 28 11:57:16.440 INFO [stderr]   |
Nov 28 11:57:16.440 INFO [stderr] 8 |     let sample_size = 1000;
Nov 28 11:57:16.440 INFO [stderr]   |         ^^^^^^^^^^^ help: consider using `_sample_size` instead
Nov 28 11:57:16.440 INFO [stderr] 
Nov 28 11:57:16.440 INFO [stderr] warning: unused variable: `m`
Nov 28 11:57:16.440 INFO [stderr]  --> src/main.rs:9:9
Nov 28 11:57:16.440 INFO [stderr]   |
Nov 28 11:57:16.440 INFO [stderr] 9 |     let m = 3;
Nov 28 11:57:16.440 INFO [stderr]   |         ^ help: consider using `_m` instead
Nov 28 11:57:16.448 INFO [stderr] 
Nov 28 11:57:16.448 INFO [stderr] warning: unused variable: `n`
Nov 28 11:57:16.448 INFO [stderr]   --> src/main.rs:10:9
Nov 28 11:57:16.448 INFO [stderr]    |
Nov 28 11:57:16.448 INFO [stderr] 10 |     let n = 8;
Nov 28 11:57:16.448 INFO [stderr]    |         ^ help: consider using `_n` instead
Nov 28 11:57:16.448 INFO [stderr] 
Nov 28 11:57:16.448 INFO [stderr] warning: unused variable: `printing`
Nov 28 11:57:16.448 INFO [stderr]   --> src/main.rs:11:9
Nov 28 11:57:16.448 INFO [stderr]    |
Nov 28 11:57:16.448 INFO [stderr] 11 |     let printing = false;
Nov 28 11:57:16.448 INFO [stderr]    |         ^^^^^^^^ help: consider using `_printing` instead
Nov 28 11:57:16.448 INFO [stderr] 
Nov 28 11:57:16.487 INFO [stderr] warning: function is never used: `benchmark_ack`
Nov 28 11:57:16.487 INFO [stderr]   --> src/benchmarking/mod.rs:3:1
Nov 28 11:57:16.487 INFO [stderr]    |
Nov 28 11:57:16.487 INFO [stderr] 3  | / pub fn benchmark_ack(fun: fn(u64, u64) -> u64, name: &str, sample_size: u64, m: u64, n: u64,
Nov 28 11:57:16.487 INFO [stderr] 4  | |                  printing: bool) {
Nov 28 11:57:16.487 INFO [stderr] 5  | |     let mut total: f64 = 0.0;
Nov 28 11:57:16.487 INFO [stderr] 6  | |     for i in 0..sample_size {
Nov 28 11:57:16.487 INFO [stderr] ...  |
Nov 28 11:57:16.487 INFO [stderr] 29 | |     println!("{}({}, {}):\nSample Size:\t{}\nAverage Time:\t{}", name, m, n, sample_size, average);
Nov 28 11:57:16.487 INFO [stderr] 30 | | }
Nov 28 11:57:16.487 INFO [stderr]    | |_^
Nov 28 11:57:16.488 INFO [stderr]    |
Nov 28 11:57:16.488 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 11:57:16.488 INFO [stderr] 
Nov 28 11:57:16.488 INFO [stderr] warning: function is never used: `basic_ack`
Nov 28 11:57:16.488 INFO [stderr]  --> src/ackermann_implementations/basic_ack.rs:1:1
Nov 28 11:57:16.488 INFO [stderr]   |
Nov 28 11:57:16.488 INFO [stderr] 1 | pub fn basic_ack(m: u64, n: u64) -> u64 {
Nov 28 11:57:16.488 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 11:57:16.488 INFO [stderr] 
Nov 28 11:57:16.504 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Nov 28 11:57:16.507 INFO [stderr] su: No module specific data is present
Nov 28 11:57:16.930 INFO running `"docker" "inspect" "cd20fb849394ce77fea4dd62f85c22564f43501536d27dc56afcdf7dc940f63f"`
Nov 28 11:57:17.080 INFO running `"docker" "rm" "-f" "cd20fb849394ce77fea4dd62f85c22564f43501536d27dc56afcdf7dc940f63f"`
Nov 28 11:57:17.352 INFO [stdout] cd20fb849394ce77fea4dd62f85c22564f43501536d27dc56afcdf7dc940f63f