Dec 11 18:09:14.093 INFO checking gavrielrh/recursion-benchmarking against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 18:09:14.093 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 18:09:14.487 INFO [stdout] a05e968cbbcf064fe97abb8e3e2cf93b34ab1161b1cf5d627bd47b0c70983c90
Dec 11 18:09:14.494 INFO running `"docker" "start" "-a" "a05e968cbbcf064fe97abb8e3e2cf93b34ab1161b1cf5d627bd47b0c70983c90"`
Dec 11 18:09:15.804 INFO [stderr] usermod: no changes
Dec 11 18:09:15.884 INFO [stderr]     Checking recursion v0.1.0 (/source)
Dec 11 18:09:16.756 INFO [stderr] warning: unused import: `rand::Rng`
Dec 11 18:09:16.756 INFO [stderr]   --> src/main.rs:13:5
Dec 11 18:09:16.756 INFO [stderr]    |
Dec 11 18:09:16.756 INFO [stderr] 13 | use rand::Rng;
Dec 11 18:09:16.756 INFO [stderr]    |     ^^^^^^^^^
Dec 11 18:09:16.756 INFO [stderr]    |
Dec 11 18:09:16.756 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 18:09:16.768 INFO [stderr] 
Dec 11 18:09:16.780 INFO [stderr] warning: unused import: `rand::Rng`
Dec 11 18:09:16.780 INFO [stderr]   --> src/main.rs:13:5
Dec 11 18:09:16.780 INFO [stderr]    |
Dec 11 18:09:16.780 INFO [stderr] 13 | use rand::Rng;
Dec 11 18:09:16.780 INFO [stderr]    |     ^^^^^^^^^
Dec 11 18:09:16.780 INFO [stderr]    |
Dec 11 18:09:16.780 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 18:09:16.780 INFO [stderr] 
Dec 11 18:09:16.892 INFO [stderr] warning: unused variable: `i`
Dec 11 18:09:16.892 INFO [stderr]   --> src/main.rs:63:9
Dec 11 18:09:16.893 INFO [stderr]    |
Dec 11 18:09:16.893 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 11 18:09:16.893 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 11 18:09:16.893 INFO [stderr]    |
Dec 11 18:09:16.893 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 18:09:16.893 INFO [stderr] 
Dec 11 18:09:16.893 INFO [stderr] warning: unused variable: `v`
Dec 11 18:09:16.893 INFO [stderr]    --> src/main.rs:142:13
Dec 11 18:09:16.893 INFO [stderr]     |
Dec 11 18:09:16.893 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 11 18:09:16.893 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 11 18:09:16.893 INFO [stderr] 
Dec 11 18:09:16.893 INFO [stderr] warning: unused variable: `i`
Dec 11 18:09:16.893 INFO [stderr]    --> src/main.rs:164:9
Dec 11 18:09:16.893 INFO [stderr]     |
Dec 11 18:09:16.893 INFO [stderr] 164 |     for i in 0..len {
Dec 11 18:09:16.893 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 11 18:09:16.893 INFO [stderr] 
Dec 11 18:09:16.893 INFO [stderr] warning: value assigned to `data` is never read
Dec 11 18:09:16.893 INFO [stderr]    --> src/main.rs:199:13
Dec 11 18:09:16.893 INFO [stderr]     |
Dec 11 18:09:16.893 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 11 18:09:16.893 INFO [stderr]     |             ^^^^
Dec 11 18:09:16.893 INFO [stderr]     |
Dec 11 18:09:16.893 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 11 18:09:16.893 INFO [stderr] 
Dec 11 18:09:16.910 INFO [stderr] warning: variable does not need to be mutable
Dec 11 18:09:16.910 INFO [stderr]    --> src/main.rs:142:9
Dec 11 18:09:16.910 INFO [stderr]     |
Dec 11 18:09:16.910 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 11 18:09:16.910 INFO [stderr]     |         ----^
Dec 11 18:09:16.910 INFO [stderr]     |         |
Dec 11 18:09:16.910 INFO [stderr]     |         help: remove this `mut`
Dec 11 18:09:16.910 INFO [stderr]     |
Dec 11 18:09:16.911 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 18:09:16.911 INFO [stderr] 
Dec 11 18:09:16.920 INFO [stderr] warning: unused variable: `i`
Dec 11 18:09:16.920 INFO [stderr]   --> src/main.rs:63:9
Dec 11 18:09:16.920 INFO [stderr]    |
Dec 11 18:09:16.920 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 11 18:09:16.920 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 11 18:09:16.920 INFO [stderr]    |
Dec 11 18:09:16.920 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 18:09:16.920 INFO [stderr] 
Dec 11 18:09:16.920 INFO [stderr] warning: unused variable: `v`
Dec 11 18:09:16.920 INFO [stderr]    --> src/main.rs:142:13
Dec 11 18:09:16.920 INFO [stderr]     |
Dec 11 18:09:16.920 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 11 18:09:16.920 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 11 18:09:16.920 INFO [stderr] 
Dec 11 18:09:16.920 INFO [stderr] warning: unused variable: `i`
Dec 11 18:09:16.921 INFO [stderr]    --> src/main.rs:164:9
Dec 11 18:09:16.921 INFO [stderr]     |
Dec 11 18:09:16.921 INFO [stderr] 164 |     for i in 0..len {
Dec 11 18:09:16.921 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 11 18:09:16.921 INFO [stderr] 
Dec 11 18:09:16.921 INFO [stderr] warning: value assigned to `data` is never read
Dec 11 18:09:16.921 INFO [stderr]    --> src/main.rs:199:13
Dec 11 18:09:16.921 INFO [stderr]     |
Dec 11 18:09:16.921 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 11 18:09:16.921 INFO [stderr]     |             ^^^^
Dec 11 18:09:16.921 INFO [stderr]     |
Dec 11 18:09:16.921 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 11 18:09:16.921 INFO [stderr] 
Dec 11 18:09:16.921 INFO [stderr] warning: unused variable: `n`
Dec 11 18:09:16.921 INFO [stderr]    --> src/main.rs:230:17
Dec 11 18:09:16.922 INFO [stderr]     |
Dec 11 18:09:16.922 INFO [stderr] 230 |             let n = a.len() as i32;
Dec 11 18:09:16.922 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 11 18:09:16.922 INFO [stderr] 
Dec 11 18:09:16.922 INFO [stderr] warning: unused variable: `n`
Dec 11 18:09:16.922 INFO [stderr]    --> src/main.rs:241:17
Dec 11 18:09:16.922 INFO [stderr]     |
Dec 11 18:09:16.922 INFO [stderr] 241 |             let n = a.len() as i32;
Dec 11 18:09:16.922 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 11 18:09:16.922 INFO [stderr] 
Dec 11 18:09:16.922 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 11 18:09:16.922 INFO [stderr]   --> src/main.rs:17:1
Dec 11 18:09:16.922 INFO [stderr]    |
Dec 11 18:09:16.922 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 11 18:09:16.922 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:16.923 INFO [stderr]    |
Dec 11 18:09:16.923 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 18:09:16.923 INFO [stderr] 
Dec 11 18:09:16.923 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 11 18:09:16.923 INFO [stderr]   --> src/main.rs:24:1
Dec 11 18:09:16.923 INFO [stderr]    |
Dec 11 18:09:16.923 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 11 18:09:16.924 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:16.924 INFO [stderr] 
Dec 11 18:09:16.924 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 11 18:09:16.924 INFO [stderr]    --> src/main.rs:139:1
Dec 11 18:09:16.924 INFO [stderr]     |
Dec 11 18:09:16.924 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 11 18:09:16.924 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:16.924 INFO [stderr] 
Dec 11 18:09:16.925 INFO [stderr] warning: function is never used: `pick`
Dec 11 18:09:16.925 INFO [stderr]    --> src/main.rs:155:1
Dec 11 18:09:16.925 INFO [stderr]     |
Dec 11 18:09:16.925 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 11 18:09:16.925 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:16.925 INFO [stderr] 
Dec 11 18:09:16.925 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 11 18:09:16.926 INFO [stderr]    --> src/main.rs:162:1
Dec 11 18:09:16.926 INFO [stderr]     |
Dec 11 18:09:16.926 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 11 18:09:16.926 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:16.926 INFO [stderr] 
Dec 11 18:09:16.926 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 11 18:09:16.926 INFO [stderr]    --> src/main.rs:171:1
Dec 11 18:09:16.927 INFO [stderr]     |
Dec 11 18:09:16.927 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 11 18:09:16.927 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:16.927 INFO [stderr] 
Dec 11 18:09:16.927 INFO [stderr] warning: function is never used: `read_vector_from_file`
Dec 11 18:09:16.927 INFO [stderr]    --> src/main.rs:196:1
Dec 11 18:09:16.927 INFO [stderr]     |
Dec 11 18:09:16.928 INFO [stderr] 196 | fn read_vector_from_file(p: &str) -> Vec<i32> {
Dec 11 18:09:16.928 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:16.928 INFO [stderr] 
Dec 11 18:09:17.006 INFO [stderr] warning: variable does not need to be mutable
Dec 11 18:09:17.007 INFO [stderr]    --> src/main.rs:142:9
Dec 11 18:09:17.007 INFO [stderr]     |
Dec 11 18:09:17.007 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 11 18:09:17.007 INFO [stderr]     |         ----^
Dec 11 18:09:17.007 INFO [stderr]     |         |
Dec 11 18:09:17.007 INFO [stderr]     |         help: remove this `mut`
Dec 11 18:09:17.008 INFO [stderr]     |
Dec 11 18:09:17.008 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 18:09:17.008 INFO [stderr] 
Dec 11 18:09:17.052 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 11 18:09:17.052 INFO [stderr]   --> src/main.rs:17:1
Dec 11 18:09:17.053 INFO [stderr]    |
Dec 11 18:09:17.053 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 11 18:09:17.053 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:17.053 INFO [stderr]    |
Dec 11 18:09:17.053 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 18:09:17.053 INFO [stderr] 
Dec 11 18:09:17.053 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 11 18:09:17.054 INFO [stderr]   --> src/main.rs:24:1
Dec 11 18:09:17.054 INFO [stderr]    |
Dec 11 18:09:17.054 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 11 18:09:17.054 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:17.054 INFO [stderr] 
Dec 11 18:09:17.054 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 11 18:09:17.054 INFO [stderr]    --> src/main.rs:139:1
Dec 11 18:09:17.055 INFO [stderr]     |
Dec 11 18:09:17.055 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 11 18:09:17.055 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:17.055 INFO [stderr] 
Dec 11 18:09:17.055 INFO [stderr] warning: function is never used: `pick`
Dec 11 18:09:17.055 INFO [stderr]    --> src/main.rs:155:1
Dec 11 18:09:17.055 INFO [stderr]     |
Dec 11 18:09:17.055 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 11 18:09:17.056 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:17.056 INFO [stderr] 
Dec 11 18:09:17.056 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 11 18:09:17.056 INFO [stderr]    --> src/main.rs:162:1
Dec 11 18:09:17.056 INFO [stderr]     |
Dec 11 18:09:17.056 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 11 18:09:17.056 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:17.056 INFO [stderr] 
Dec 11 18:09:17.056 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 11 18:09:17.056 INFO [stderr]    --> src/main.rs:171:1
Dec 11 18:09:17.056 INFO [stderr]     |
Dec 11 18:09:17.056 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 11 18:09:17.056 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:09:17.056 INFO [stderr] 
Dec 11 18:09:17.120 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
Dec 11 18:09:17.123 INFO [stderr] su: No module specific data is present
Dec 11 18:09:18.492 INFO running `"docker" "inspect" "a05e968cbbcf064fe97abb8e3e2cf93b34ab1161b1cf5d627bd47b0c70983c90"`
Dec 11 18:09:18.886 INFO running `"docker" "rm" "-f" "a05e968cbbcf064fe97abb8e3e2cf93b34ab1161b1cf5d627bd47b0c70983c90"`
Dec 11 18:09:19.244 INFO [stdout] a05e968cbbcf064fe97abb8e3e2cf93b34ab1161b1cf5d627bd47b0c70983c90