Dec 04 18:19:23.955 INFO checking gavrielrh/recursion-benchmarking against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 18:19:23.955 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 04 18:19:24.501 INFO [stdout] c452e56797644dddc3d965219db4a8c586faf117048afd4da734d90ec595b18c
Dec 04 18:19:24.503 INFO running `"docker" "start" "-a" "c452e56797644dddc3d965219db4a8c586faf117048afd4da734d90ec595b18c"`
Dec 04 18:19:25.993 INFO [stderr] usermod: no changes
Dec 04 18:19:26.075 INFO [stderr]     Checking recursion v0.1.0 (/source)
Dec 04 18:19:26.799 INFO [stderr] warning: unused import: `rand::Rng`
Dec 04 18:19:26.799 INFO [stderr]   --> src/main.rs:13:5
Dec 04 18:19:26.799 INFO [stderr]    |
Dec 04 18:19:26.799 INFO [stderr] 13 | use rand::Rng;
Dec 04 18:19:26.799 INFO [stderr]    |     ^^^^^^^^^
Dec 04 18:19:26.799 INFO [stderr]    |
Dec 04 18:19:26.799 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 18:19:26.799 INFO [stderr] 
Dec 04 18:19:26.823 INFO [stderr] warning: unused import: `rand::Rng`
Dec 04 18:19:26.823 INFO [stderr]   --> src/main.rs:13:5
Dec 04 18:19:26.824 INFO [stderr]    |
Dec 04 18:19:26.824 INFO [stderr] 13 | use rand::Rng;
Dec 04 18:19:26.824 INFO [stderr]    |     ^^^^^^^^^
Dec 04 18:19:26.824 INFO [stderr]    |
Dec 04 18:19:26.824 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 18:19:26.824 INFO [stderr] 
Dec 04 18:19:26.959 INFO [stderr] warning: unused variable: `i`
Dec 04 18:19:26.959 INFO [stderr]   --> src/main.rs:63:9
Dec 04 18:19:26.959 INFO [stderr]    |
Dec 04 18:19:26.959 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 04 18:19:26.959 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 04 18:19:26.959 INFO [stderr]    |
Dec 04 18:19:26.959 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 18:19:26.959 INFO [stderr] 
Dec 04 18:19:26.959 INFO [stderr] warning: unused variable: `v`
Dec 04 18:19:26.959 INFO [stderr]    --> src/main.rs:142:13
Dec 04 18:19:26.959 INFO [stderr]     |
Dec 04 18:19:26.959 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 04 18:19:26.959 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 04 18:19:26.959 INFO [stderr] 
Dec 04 18:19:26.959 INFO [stderr] warning: unused variable: `i`
Dec 04 18:19:26.959 INFO [stderr]    --> src/main.rs:164:9
Dec 04 18:19:26.959 INFO [stderr]     |
Dec 04 18:19:26.959 INFO [stderr] 164 |     for i in 0..len {
Dec 04 18:19:26.959 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 04 18:19:26.959 INFO [stderr] 
Dec 04 18:19:26.959 INFO [stderr] warning: value assigned to `data` is never read
Dec 04 18:19:26.959 INFO [stderr]    --> src/main.rs:199:13
Dec 04 18:19:26.959 INFO [stderr]     |
Dec 04 18:19:26.959 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 04 18:19:26.959 INFO [stderr]     |             ^^^^
Dec 04 18:19:26.959 INFO [stderr]     |
Dec 04 18:19:26.959 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 04 18:19:26.959 INFO [stderr] 
Dec 04 18:19:26.983 INFO [stderr] warning: variable does not need to be mutable
Dec 04 18:19:26.983 INFO [stderr]    --> src/main.rs:142:9
Dec 04 18:19:26.983 INFO [stderr]     |
Dec 04 18:19:26.983 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 04 18:19:26.983 INFO [stderr]     |         ----^
Dec 04 18:19:26.983 INFO [stderr]     |         |
Dec 04 18:19:26.983 INFO [stderr]     |         help: remove this `mut`
Dec 04 18:19:26.983 INFO [stderr]     |
Dec 04 18:19:26.983 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 18:19:26.983 INFO [stderr] 
Dec 04 18:19:26.984 INFO [stderr] warning: unused variable: `i`
Dec 04 18:19:26.984 INFO [stderr]   --> src/main.rs:63:9
Dec 04 18:19:26.984 INFO [stderr]    |
Dec 04 18:19:26.984 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 04 18:19:26.984 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 04 18:19:26.984 INFO [stderr]    |
Dec 04 18:19:26.984 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 18:19:26.984 INFO [stderr] 
Dec 04 18:19:26.984 INFO [stderr] warning: unused variable: `v`
Dec 04 18:19:26.984 INFO [stderr]    --> src/main.rs:142:13
Dec 04 18:19:26.984 INFO [stderr]     |
Dec 04 18:19:26.984 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 04 18:19:26.984 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 04 18:19:26.984 INFO [stderr] 
Dec 04 18:19:26.984 INFO [stderr] warning: unused variable: `i`
Dec 04 18:19:26.984 INFO [stderr]    --> src/main.rs:164:9
Dec 04 18:19:26.984 INFO [stderr]     |
Dec 04 18:19:26.984 INFO [stderr] 164 |     for i in 0..len {
Dec 04 18:19:26.984 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 04 18:19:26.985 INFO [stderr] 
Dec 04 18:19:26.985 INFO [stderr] warning: value assigned to `data` is never read
Dec 04 18:19:26.985 INFO [stderr]    --> src/main.rs:199:13
Dec 04 18:19:26.985 INFO [stderr]     |
Dec 04 18:19:26.985 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 04 18:19:26.985 INFO [stderr]     |             ^^^^
Dec 04 18:19:26.985 INFO [stderr]     |
Dec 04 18:19:26.985 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 04 18:19:26.985 INFO [stderr] 
Dec 04 18:19:26.986 INFO [stderr] warning: unused variable: `n`
Dec 04 18:19:26.986 INFO [stderr]    --> src/main.rs:230:17
Dec 04 18:19:26.986 INFO [stderr]     |
Dec 04 18:19:26.986 INFO [stderr] 230 |             let n = a.len() as i32;
Dec 04 18:19:26.986 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 04 18:19:26.987 INFO [stderr] 
Dec 04 18:19:26.987 INFO [stderr] warning: unused variable: `n`
Dec 04 18:19:26.987 INFO [stderr]    --> src/main.rs:241:17
Dec 04 18:19:26.987 INFO [stderr]     |
Dec 04 18:19:26.987 INFO [stderr] 241 |             let n = a.len() as i32;
Dec 04 18:19:26.988 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 04 18:19:26.988 INFO [stderr] 
Dec 04 18:19:27.007 INFO [stderr] warning: variable does not need to be mutable
Dec 04 18:19:27.007 INFO [stderr]    --> src/main.rs:142:9
Dec 04 18:19:27.007 INFO [stderr]     |
Dec 04 18:19:27.007 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 04 18:19:27.008 INFO [stderr]     |         ----^
Dec 04 18:19:27.008 INFO [stderr]     |         |
Dec 04 18:19:27.008 INFO [stderr]     |         help: remove this `mut`
Dec 04 18:19:27.008 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 04 18:19:27.008 INFO [stderr]   --> src/main.rs:17:1
Dec 04 18:19:27.009 INFO [stderr]    |
Dec 04 18:19:27.009 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 04 18:19:27.009 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.009 INFO [stderr]    |
Dec 04 18:19:27.009 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 18:19:27.010 INFO [stderr] 
Dec 04 18:19:27.010 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 04 18:19:27.010 INFO [stderr]   --> src/main.rs:24:1
Dec 04 18:19:27.010 INFO [stderr]    |
Dec 04 18:19:27.010 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 04 18:19:27.011 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.011 INFO [stderr] 
Dec 04 18:19:27.011 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 04 18:19:27.011 INFO [stderr]    --> src/main.rs:139:1
Dec 04 18:19:27.011 INFO [stderr]     |
Dec 04 18:19:27.011 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 04 18:19:27.012 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.012 INFO [stderr] 
Dec 04 18:19:27.012 INFO [stderr] warning: function is never used: `pick`
Dec 04 18:19:27.012 INFO [stderr]    --> src/main.rs:155:1
Dec 04 18:19:27.012 INFO [stderr]     |
Dec 04 18:19:27.013 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 04 18:19:27.013 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.013 INFO [stderr] 
Dec 04 18:19:27.013 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 04 18:19:27.013 INFO [stderr]    --> src/main.rs:162:1
Dec 04 18:19:27.014 INFO [stderr]     |
Dec 04 18:19:27.014 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 04 18:19:27.014 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.014 INFO [stderr] 
Dec 04 18:19:27.014 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 04 18:19:27.014 INFO [stderr]    --> src/main.rs:171:1
Dec 04 18:19:27.015 INFO [stderr]     |
Dec 04 18:19:27.015 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 04 18:19:27.015 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.015 INFO [stderr] 
Dec 04 18:19:27.015 INFO [stderr] warning: function is never used: `read_vector_from_file`
Dec 04 18:19:27.016 INFO [stderr]    --> src/main.rs:196:1
Dec 04 18:19:27.016 INFO [stderr]     |
Dec 04 18:19:27.016 INFO [stderr] 196 | fn read_vector_from_file(p: &str) -> Vec<i32> {
Dec 04 18:19:27.016 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.016 INFO [stderr] 
Dec 04 18:19:27.017 INFO [stderr]     |
Dec 04 18:19:27.017 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 18:19:27.017 INFO [stderr] 
Dec 04 18:19:27.044 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 04 18:19:27.044 INFO [stderr]   --> src/main.rs:17:1
Dec 04 18:19:27.044 INFO [stderr]    |
Dec 04 18:19:27.044 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 04 18:19:27.044 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.051 INFO [stderr]    |
Dec 04 18:19:27.051 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 18:19:27.051 INFO [stderr] 
Dec 04 18:19:27.051 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 04 18:19:27.051 INFO [stderr]   --> src/main.rs:24:1
Dec 04 18:19:27.051 INFO [stderr]    |
Dec 04 18:19:27.051 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 04 18:19:27.051 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.052 INFO [stderr] 
Dec 04 18:19:27.052 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 04 18:19:27.052 INFO [stderr]    --> src/main.rs:139:1
Dec 04 18:19:27.052 INFO [stderr]     |
Dec 04 18:19:27.052 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 04 18:19:27.052 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.052 INFO [stderr] 
Dec 04 18:19:27.052 INFO [stderr] warning: function is never used: `pick`
Dec 04 18:19:27.052 INFO [stderr]    --> src/main.rs:155:1
Dec 04 18:19:27.053 INFO [stderr]     |
Dec 04 18:19:27.053 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 04 18:19:27.053 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.053 INFO [stderr] 
Dec 04 18:19:27.053 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 04 18:19:27.053 INFO [stderr]    --> src/main.rs:162:1
Dec 04 18:19:27.053 INFO [stderr]     |
Dec 04 18:19:27.053 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 04 18:19:27.053 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.053 INFO [stderr] 
Dec 04 18:19:27.054 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 04 18:19:27.054 INFO [stderr]    --> src/main.rs:171:1
Dec 04 18:19:27.054 INFO [stderr]     |
Dec 04 18:19:27.054 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 04 18:19:27.054 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 18:19:27.054 INFO [stderr] 
Dec 04 18:19:27.095 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Dec 04 18:19:27.098 INFO [stderr] su: No module specific data is present
Dec 04 18:19:28.679 INFO running `"docker" "inspect" "c452e56797644dddc3d965219db4a8c586faf117048afd4da734d90ec595b18c"`
Dec 04 18:19:29.105 INFO running `"docker" "rm" "-f" "c452e56797644dddc3d965219db4a8c586faf117048afd4da734d90ec595b18c"`
Dec 04 18:19:29.475 INFO [stdout] c452e56797644dddc3d965219db4a8c586faf117048afd4da734d90ec595b18c