Dec 19 16:40:23.339 INFO checking gavrielrh/recursion-benchmarking against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:40:23.339 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/gavrielrh/recursion-benchmarking:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:40:23.899 INFO [stdout] c7d8e09d1ba60101525e291b3c442ac4b8d3c9028acbc10dbdac491ce9772657
Dec 19 16:40:23.902 INFO running `"docker" "start" "-a" "c7d8e09d1ba60101525e291b3c442ac4b8d3c9028acbc10dbdac491ce9772657"`
Dec 19 16:40:26.572 INFO [stderr]     Checking recursion v0.1.0 (/opt/crater/workdir)
Dec 19 16:40:26.904 INFO [stderr] warning: unused import: `rand::Rng`
Dec 19 16:40:26.904 INFO [stderr]   --> src/main.rs:13:5
Dec 19 16:40:26.904 INFO [stderr]    |
Dec 19 16:40:26.904 INFO [stderr] 13 | use rand::Rng;
Dec 19 16:40:26.904 INFO [stderr]    |     ^^^^^^^^^
Dec 19 16:40:26.904 INFO [stderr]    |
Dec 19 16:40:26.912 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 16:40:26.912 INFO [stderr] 
Dec 19 16:40:26.995 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:26.995 INFO [stderr]   --> src/main.rs:63:9
Dec 19 16:40:26.995 INFO [stderr]    |
Dec 19 16:40:26.995 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 19 16:40:26.995 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 19 16:40:26.995 INFO [stderr]    |
Dec 19 16:40:26.995 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:40:26.995 INFO [stderr] 
Dec 19 16:40:26.995 INFO [stderr] warning: unused variable: `v`
Dec 19 16:40:26.995 INFO [stderr]    --> src/main.rs:142:13
Dec 19 16:40:26.995 INFO [stderr]     |
Dec 19 16:40:26.995 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:26.995 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 19 16:40:26.995 INFO [stderr] 
Dec 19 16:40:26.997 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:26.997 INFO [stderr]    --> src/main.rs:164:9
Dec 19 16:40:26.997 INFO [stderr]     |
Dec 19 16:40:26.997 INFO [stderr] 164 |     for i in 0..len {
Dec 19 16:40:26.997 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 19 16:40:26.997 INFO [stderr] 
Dec 19 16:40:26.997 INFO [stderr] warning: value assigned to `data` is never read
Dec 19 16:40:26.997 INFO [stderr]    --> src/main.rs:199:13
Dec 19 16:40:26.997 INFO [stderr]     |
Dec 19 16:40:26.997 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 19 16:40:26.997 INFO [stderr]     |             ^^^^
Dec 19 16:40:26.997 INFO [stderr]     |
Dec 19 16:40:26.997 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 16:40:26.997 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 16:40:26.997 INFO [stderr] 
Dec 19 16:40:27.008 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:40:27.008 INFO [stderr]    --> src/main.rs:142:9
Dec 19 16:40:27.008 INFO [stderr]     |
Dec 19 16:40:27.008 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:27.008 INFO [stderr]     |         ----^
Dec 19 16:40:27.008 INFO [stderr]     |         |
Dec 19 16:40:27.008 INFO [stderr]     |         help: remove this `mut`
Dec 19 16:40:27.008 INFO [stderr]     |
Dec 19 16:40:27.008 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 16:40:27.008 INFO [stderr] 
Dec 19 16:40:27.022 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 19 16:40:27.022 INFO [stderr]   --> src/main.rs:17:1
Dec 19 16:40:27.022 INFO [stderr]    |
Dec 19 16:40:27.022 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 19 16:40:27.022 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.022 INFO [stderr]    |
Dec 19 16:40:27.022 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:40:27.022 INFO [stderr] 
Dec 19 16:40:27.022 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 19 16:40:27.022 INFO [stderr]   --> src/main.rs:24:1
Dec 19 16:40:27.022 INFO [stderr]    |
Dec 19 16:40:27.022 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 19 16:40:27.022 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.022 INFO [stderr] 
Dec 19 16:40:27.022 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 19 16:40:27.022 INFO [stderr]    --> src/main.rs:139:1
Dec 19 16:40:27.022 INFO [stderr]     |
Dec 19 16:40:27.022 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 19 16:40:27.022 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.022 INFO [stderr] 
Dec 19 16:40:27.022 INFO [stderr] warning: function is never used: `pick`
Dec 19 16:40:27.022 INFO [stderr]    --> src/main.rs:155:1
Dec 19 16:40:27.022 INFO [stderr]     |
Dec 19 16:40:27.022 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 19 16:40:27.022 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.022 INFO [stderr] 
Dec 19 16:40:27.022 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 19 16:40:27.022 INFO [stderr]    --> src/main.rs:162:1
Dec 19 16:40:27.022 INFO [stderr]     |
Dec 19 16:40:27.022 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 19 16:40:27.022 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.022 INFO [stderr] 
Dec 19 16:40:27.022 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 19 16:40:27.022 INFO [stderr]    --> src/main.rs:171:1
Dec 19 16:40:27.022 INFO [stderr]     |
Dec 19 16:40:27.022 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 19 16:40:27.022 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.022 INFO [stderr] 
Dec 19 16:40:27.023 INFO [stderr] warning: function is never used: `read_vector_from_file`
Dec 19 16:40:27.023 INFO [stderr]    --> src/main.rs:196:1
Dec 19 16:40:27.023 INFO [stderr]     |
Dec 19 16:40:27.023 INFO [stderr] 196 | fn read_vector_from_file(p: &str) -> Vec<i32> {
Dec 19 16:40:27.023 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.023 INFO [stderr] 
Dec 19 16:40:27.023 INFO [stderr] warning: unused import: `rand::Rng`
Dec 19 16:40:27.023 INFO [stderr]   --> src/main.rs:13:5
Dec 19 16:40:27.023 INFO [stderr]    |
Dec 19 16:40:27.023 INFO [stderr] 13 | use rand::Rng;
Dec 19 16:40:27.023 INFO [stderr]    |     ^^^^^^^^^
Dec 19 16:40:27.023 INFO [stderr]    |
Dec 19 16:40:27.023 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 16:40:27.023 INFO [stderr] 
Dec 19 16:40:27.196 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:27.196 INFO [stderr]   --> src/main.rs:63:9
Dec 19 16:40:27.196 INFO [stderr]    |
Dec 19 16:40:27.196 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 19 16:40:27.196 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 19 16:40:27.196 INFO [stderr]    |
Dec 19 16:40:27.196 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:40:27.196 INFO [stderr] 
Dec 19 16:40:27.196 INFO [stderr] warning: unused variable: `v`
Dec 19 16:40:27.196 INFO [stderr]    --> src/main.rs:142:13
Dec 19 16:40:27.196 INFO [stderr]     |
Dec 19 16:40:27.196 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:27.196 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 19 16:40:27.196 INFO [stderr] 
Dec 19 16:40:27.196 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:27.196 INFO [stderr]    --> src/main.rs:164:9
Dec 19 16:40:27.196 INFO [stderr]     |
Dec 19 16:40:27.196 INFO [stderr] 164 |     for i in 0..len {
Dec 19 16:40:27.196 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 19 16:40:27.196 INFO [stderr] 
Dec 19 16:40:27.196 INFO [stderr] warning: value assigned to `data` is never read
Dec 19 16:40:27.196 INFO [stderr]    --> src/main.rs:199:13
Dec 19 16:40:27.196 INFO [stderr]     |
Dec 19 16:40:27.196 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 19 16:40:27.196 INFO [stderr]     |             ^^^^
Dec 19 16:40:27.196 INFO [stderr]     |
Dec 19 16:40:27.196 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 16:40:27.196 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 16:40:27.196 INFO [stderr] 
Dec 19 16:40:27.196 INFO [stderr] warning: unused variable: `n`
Dec 19 16:40:27.196 INFO [stderr]    --> src/main.rs:230:17
Dec 19 16:40:27.196 INFO [stderr]     |
Dec 19 16:40:27.196 INFO [stderr] 230 |             let n = a.len() as i32;
Dec 19 16:40:27.196 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 19 16:40:27.196 INFO [stderr] 
Dec 19 16:40:27.196 INFO [stderr] warning: unused variable: `n`
Dec 19 16:40:27.196 INFO [stderr]    --> src/main.rs:241:17
Dec 19 16:40:27.196 INFO [stderr]     |
Dec 19 16:40:27.196 INFO [stderr] 241 |             let n = a.len() as i32;
Dec 19 16:40:27.196 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 19 16:40:27.196 INFO [stderr] 
Dec 19 16:40:27.216 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:40:27.216 INFO [stderr]    --> src/main.rs:142:9
Dec 19 16:40:27.216 INFO [stderr]     |
Dec 19 16:40:27.216 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:27.216 INFO [stderr]     |         ----^
Dec 19 16:40:27.216 INFO [stderr]     |         |
Dec 19 16:40:27.216 INFO [stderr]     |         help: remove this `mut`
Dec 19 16:40:27.216 INFO [stderr]     |
Dec 19 16:40:27.216 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 16:40:27.216 INFO [stderr] 
Dec 19 16:40:27.232 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 19 16:40:27.232 INFO [stderr]   --> src/main.rs:17:1
Dec 19 16:40:27.232 INFO [stderr]    |
Dec 19 16:40:27.232 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 19 16:40:27.232 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.232 INFO [stderr]    |
Dec 19 16:40:27.232 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:40:27.232 INFO [stderr] 
Dec 19 16:40:27.232 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 19 16:40:27.232 INFO [stderr]   --> src/main.rs:24:1
Dec 19 16:40:27.232 INFO [stderr]    |
Dec 19 16:40:27.232 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 19 16:40:27.232 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.233 INFO [stderr] 
Dec 19 16:40:27.233 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 19 16:40:27.233 INFO [stderr]    --> src/main.rs:139:1
Dec 19 16:40:27.233 INFO [stderr]     |
Dec 19 16:40:27.233 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 19 16:40:27.233 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.233 INFO [stderr] 
Dec 19 16:40:27.233 INFO [stderr] warning: function is never used: `pick`
Dec 19 16:40:27.233 INFO [stderr]    --> src/main.rs:155:1
Dec 19 16:40:27.233 INFO [stderr]     |
Dec 19 16:40:27.233 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 19 16:40:27.233 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.233 INFO [stderr] 
Dec 19 16:40:27.233 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 19 16:40:27.233 INFO [stderr]    --> src/main.rs:162:1
Dec 19 16:40:27.233 INFO [stderr]     |
Dec 19 16:40:27.233 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 19 16:40:27.233 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.233 INFO [stderr] 
Dec 19 16:40:27.233 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 19 16:40:27.233 INFO [stderr]    --> src/main.rs:171:1
Dec 19 16:40:27.233 INFO [stderr]     |
Dec 19 16:40:27.233 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 19 16:40:27.233 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:27.233 INFO [stderr] 
Dec 19 16:40:27.252 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Dec 19 16:40:27.954 INFO running `"docker" "inspect" "c7d8e09d1ba60101525e291b3c442ac4b8d3c9028acbc10dbdac491ce9772657"`
Dec 19 16:40:28.254 INFO running `"docker" "rm" "-f" "c7d8e09d1ba60101525e291b3c442ac4b8d3c9028acbc10dbdac491ce9772657"`
Dec 19 16:40:28.560 INFO [stdout] c7d8e09d1ba60101525e291b3c442ac4b8d3c9028acbc10dbdac491ce9772657