Nov 28 05:02:30.728 INFO checking gavrielrh/recursion-benchmarking against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 05:02:30.728 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 05:02:31.222 INFO [stdout] f859165bd57f5dca9ec9fc7af7861173ae552194c3db8c12569ba2efe9e2dc95
Nov 28 05:02:31.224 INFO running `"docker" "start" "-a" "f859165bd57f5dca9ec9fc7af7861173ae552194c3db8c12569ba2efe9e2dc95"`
Nov 28 05:02:32.979 INFO [stderr] usermod: no changes
Nov 28 05:02:33.148 INFO [stderr]     Checking recursion v0.1.0 (/source)
Nov 28 05:02:33.744 INFO [stderr] warning: unused import: `rand::Rng`
Nov 28 05:02:33.744 INFO [stderr]   --> src/main.rs:13:5
Nov 28 05:02:33.744 INFO [stderr]    |
Nov 28 05:02:33.744 INFO [stderr] 13 | use rand::Rng;
Nov 28 05:02:33.744 INFO [stderr]    |     ^^^^^^^^^
Nov 28 05:02:33.744 INFO [stderr]    |
Nov 28 05:02:33.744 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 05:02:33.744 INFO [stderr] 
Nov 28 05:02:33.901 INFO [stderr] warning: unused variable: `i`
Nov 28 05:02:33.901 INFO [stderr]   --> src/main.rs:63:9
Nov 28 05:02:33.901 INFO [stderr]    |
Nov 28 05:02:33.901 INFO [stderr] 63 |     for i in 3..(n+1) {
Nov 28 05:02:33.901 INFO [stderr]    |         ^ help: consider using `_i` instead
Nov 28 05:02:33.902 INFO [stderr]    |
Nov 28 05:02:33.902 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 05:02:33.902 INFO [stderr] 
Nov 28 05:02:33.902 INFO [stderr] warning: unused variable: `v`
Nov 28 05:02:33.902 INFO [stderr]    --> src/main.rs:142:13
Nov 28 05:02:33.903 INFO [stderr]     |
Nov 28 05:02:33.903 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Nov 28 05:02:33.903 INFO [stderr]     |             ^ help: consider using `_v` instead
Nov 28 05:02:33.903 INFO [stderr] 
Nov 28 05:02:33.903 INFO [stderr] warning: unused variable: `i`
Nov 28 05:02:33.903 INFO [stderr]    --> src/main.rs:164:9
Nov 28 05:02:33.904 INFO [stderr]     |
Nov 28 05:02:33.904 INFO [stderr] 164 |     for i in 0..len {
Nov 28 05:02:33.904 INFO [stderr]     |         ^ help: consider using `_i` instead
Nov 28 05:02:33.904 INFO [stderr] 
Nov 28 05:02:33.904 INFO [stderr] warning: value assigned to `data` is never read
Nov 28 05:02:33.904 INFO [stderr]    --> src/main.rs:199:13
Nov 28 05:02:33.905 INFO [stderr]     |
Nov 28 05:02:33.905 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Nov 28 05:02:33.905 INFO [stderr]     |             ^^^^
Nov 28 05:02:33.905 INFO [stderr]     |
Nov 28 05:02:33.905 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 28 05:02:33.905 INFO [stderr] 
Nov 28 05:02:33.906 INFO [stderr] warning: unused variable: `n`
Nov 28 05:02:33.906 INFO [stderr]    --> src/main.rs:230:17
Nov 28 05:02:33.906 INFO [stderr]     |
Nov 28 05:02:33.906 INFO [stderr] 230 |             let n = a.len() as i32;
Nov 28 05:02:33.906 INFO [stderr]     |                 ^ help: consider using `_n` instead
Nov 28 05:02:33.906 INFO [stderr] 
Nov 28 05:02:33.907 INFO [stderr] warning: unused variable: `n`
Nov 28 05:02:33.907 INFO [stderr]    --> src/main.rs:241:17
Nov 28 05:02:33.907 INFO [stderr]     |
Nov 28 05:02:33.907 INFO [stderr] 241 |             let n = a.len() as i32;
Nov 28 05:02:33.907 INFO [stderr]     |                 ^ help: consider using `_n` instead
Nov 28 05:02:33.908 INFO [stderr] 
Nov 28 05:02:33.920 INFO [stderr] warning: variable does not need to be mutable
Nov 28 05:02:33.921 INFO [stderr]    --> src/main.rs:142:9
Nov 28 05:02:33.921 INFO [stderr]     |
Nov 28 05:02:33.921 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Nov 28 05:02:33.921 INFO [stderr]     |         ----^
Nov 28 05:02:33.922 INFO [stderr]     |         |
Nov 28 05:02:33.922 INFO [stderr]     |         help: remove this `mut`
Nov 28 05:02:33.922 INFO [stderr]     |
Nov 28 05:02:33.922 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 05:02:33.923 INFO [stderr] 
Nov 28 05:02:33.956 INFO [stderr] warning: function is never used: `get_sort_time`
Nov 28 05:02:33.957 INFO [stderr]   --> src/main.rs:17:1
Nov 28 05:02:33.957 INFO [stderr]    |
Nov 28 05:02:33.957 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Nov 28 05:02:33.958 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:33.958 INFO [stderr]    |
Nov 28 05:02:33.958 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 05:02:33.958 INFO [stderr] 
Nov 28 05:02:33.959 INFO [stderr] warning: function is never used: `get_fibo_time`
Nov 28 05:02:33.959 INFO [stderr]   --> src/main.rs:24:1
Nov 28 05:02:33.959 INFO [stderr]    |
Nov 28 05:02:33.960 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Nov 28 05:02:33.960 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:33.960 INFO [stderr] 
Nov 28 05:02:33.961 INFO [stderr] warning: function is never used: `make_test_vec_files`
Nov 28 05:02:33.961 INFO [stderr]    --> src/main.rs:139:1
Nov 28 05:02:33.961 INFO [stderr]     |
Nov 28 05:02:33.961 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Nov 28 05:02:33.962 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:33.962 INFO [stderr] 
Nov 28 05:02:33.962 INFO [stderr] warning: function is never used: `pick`
Nov 28 05:02:33.963 INFO [stderr]    --> src/main.rs:155:1
Nov 28 05:02:33.963 INFO [stderr]     |
Nov 28 05:02:33.963 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Nov 28 05:02:33.963 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:33.964 INFO [stderr] 
Nov 28 05:02:33.964 INFO [stderr] warning: function is never used: `get_rand_vector`
Nov 28 05:02:33.964 INFO [stderr]    --> src/main.rs:162:1
Nov 28 05:02:33.965 INFO [stderr]     |
Nov 28 05:02:33.965 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Nov 28 05:02:33.965 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:33.966 INFO [stderr] 
Nov 28 05:02:33.966 INFO [stderr] warning: function is never used: `save_vec_to_file`
Nov 28 05:02:33.966 INFO [stderr]    --> src/main.rs:171:1
Nov 28 05:02:33.966 INFO [stderr]     |
Nov 28 05:02:33.967 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Nov 28 05:02:33.967 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:33.967 INFO [stderr] 
Nov 28 05:02:34.165 INFO [stderr] warning: unused import: `rand::Rng`
Nov 28 05:02:34.165 INFO [stderr]   --> src/main.rs:13:5
Nov 28 05:02:34.165 INFO [stderr]    |
Nov 28 05:02:34.165 INFO [stderr] 13 | use rand::Rng;
Nov 28 05:02:34.166 INFO [stderr]    |     ^^^^^^^^^
Nov 28 05:02:34.166 INFO [stderr]    |
Nov 28 05:02:34.181 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 05:02:34.182 INFO [stderr] 
Nov 28 05:02:34.369 INFO [stderr] warning: unused variable: `i`
Nov 28 05:02:34.369 INFO [stderr]   --> src/main.rs:63:9
Nov 28 05:02:34.370 INFO [stderr]    |
Nov 28 05:02:34.370 INFO [stderr] 63 |     for i in 3..(n+1) {
Nov 28 05:02:34.371 INFO [stderr]    |         ^ help: consider using `_i` instead
Nov 28 05:02:34.371 INFO [stderr]    |
Nov 28 05:02:34.372 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 05:02:34.372 INFO [stderr] 
Nov 28 05:02:34.372 INFO [stderr] warning: unused variable: `v`
Nov 28 05:02:34.373 INFO [stderr]    --> src/main.rs:142:13
Nov 28 05:02:34.376 INFO [stderr]     |
Nov 28 05:02:34.377 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Nov 28 05:02:34.377 INFO [stderr]     |             ^ help: consider using `_v` instead
Nov 28 05:02:34.377 INFO [stderr] 
Nov 28 05:02:34.378 INFO [stderr] warning: unused variable: `i`
Nov 28 05:02:34.378 INFO [stderr]    --> src/main.rs:164:9
Nov 28 05:02:34.378 INFO [stderr]     |
Nov 28 05:02:34.379 INFO [stderr] 164 |     for i in 0..len {
Nov 28 05:02:34.379 INFO [stderr]     |         ^ help: consider using `_i` instead
Nov 28 05:02:34.379 INFO [stderr] 
Nov 28 05:02:34.379 INFO [stderr] warning: value assigned to `data` is never read
Nov 28 05:02:34.380 INFO [stderr]    --> src/main.rs:199:13
Nov 28 05:02:34.380 INFO [stderr]     |
Nov 28 05:02:34.380 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Nov 28 05:02:34.381 INFO [stderr]     |             ^^^^
Nov 28 05:02:34.381 INFO [stderr]     |
Nov 28 05:02:34.381 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 28 05:02:34.381 INFO [stderr] 
Nov 28 05:02:34.384 INFO [stderr] warning: variable does not need to be mutable
Nov 28 05:02:34.385 INFO [stderr]    --> src/main.rs:142:9
Nov 28 05:02:34.385 INFO [stderr]     |
Nov 28 05:02:34.385 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Nov 28 05:02:34.386 INFO [stderr]     |         ----^
Nov 28 05:02:34.386 INFO [stderr]     |         |
Nov 28 05:02:34.386 INFO [stderr]     |         help: remove this `mut`
Nov 28 05:02:34.387 INFO [stderr]     |
Nov 28 05:02:34.387 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 05:02:34.387 INFO [stderr] 
Nov 28 05:02:34.402 INFO [stderr] warning: function is never used: `get_sort_time`
Nov 28 05:02:34.403 INFO [stderr]   --> src/main.rs:17:1
Nov 28 05:02:34.403 INFO [stderr]    |
Nov 28 05:02:34.404 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Nov 28 05:02:34.404 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:34.404 INFO [stderr]    |
Nov 28 05:02:34.405 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 05:02:34.405 INFO [stderr] 
Nov 28 05:02:34.405 INFO [stderr] warning: function is never used: `get_fibo_time`
Nov 28 05:02:34.405 INFO [stderr]   --> src/main.rs:24:1
Nov 28 05:02:34.406 INFO [stderr]    |
Nov 28 05:02:34.406 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Nov 28 05:02:34.406 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:34.407 INFO [stderr] 
Nov 28 05:02:34.407 INFO [stderr] warning: function is never used: `make_test_vec_files`
Nov 28 05:02:34.407 INFO [stderr]    --> src/main.rs:139:1
Nov 28 05:02:34.408 INFO [stderr]     |
Nov 28 05:02:34.408 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Nov 28 05:02:34.408 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:34.408 INFO [stderr] 
Nov 28 05:02:34.409 INFO [stderr] warning: function is never used: `pick`
Nov 28 05:02:34.409 INFO [stderr]    --> src/main.rs:155:1
Nov 28 05:02:34.409 INFO [stderr]     |
Nov 28 05:02:34.410 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Nov 28 05:02:34.410 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:34.410 INFO [stderr] 
Nov 28 05:02:34.410 INFO [stderr] warning: function is never used: `get_rand_vector`
Nov 28 05:02:34.411 INFO [stderr]    --> src/main.rs:162:1
Nov 28 05:02:34.411 INFO [stderr]     |
Nov 28 05:02:34.411 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Nov 28 05:02:34.411 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:34.412 INFO [stderr] 
Nov 28 05:02:34.412 INFO [stderr] warning: function is never used: `save_vec_to_file`
Nov 28 05:02:34.412 INFO [stderr]    --> src/main.rs:171:1
Nov 28 05:02:34.413 INFO [stderr]     |
Nov 28 05:02:34.413 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Nov 28 05:02:34.413 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:34.413 INFO [stderr] 
Nov 28 05:02:34.414 INFO [stderr] warning: function is never used: `read_vector_from_file`
Nov 28 05:02:34.414 INFO [stderr]    --> src/main.rs:196:1
Nov 28 05:02:34.414 INFO [stderr]     |
Nov 28 05:02:34.415 INFO [stderr] 196 | fn read_vector_from_file(p: &str) -> Vec<i32> {
Nov 28 05:02:34.415 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 05:02:34.415 INFO [stderr] 
Nov 28 05:02:34.435 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
Nov 28 05:02:34.440 INFO [stderr] su: No module specific data is present
Nov 28 05:02:35.423 INFO running `"docker" "inspect" "f859165bd57f5dca9ec9fc7af7861173ae552194c3db8c12569ba2efe9e2dc95"`
Nov 28 05:02:35.773 INFO running `"docker" "rm" "-f" "f859165bd57f5dca9ec9fc7af7861173ae552194c3db8c12569ba2efe9e2dc95"`
Nov 28 05:02:36.124 INFO [stdout] f859165bd57f5dca9ec9fc7af7861173ae552194c3db8c12569ba2efe9e2dc95