Dec 19 16:40:27.905 INFO checking gavrielrh/recursion-benchmarking against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:40:27.905 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:40:28.330 INFO [stdout] 7c464780a67b192ea2fab4b1e10f5d2a11b87464a6eeefc85a47540092c739fd
Dec 19 16:40:28.334 INFO running `"docker" "start" "-a" "7c464780a67b192ea2fab4b1e10f5d2a11b87464a6eeefc85a47540092c739fd"`
Dec 19 16:40:30.116 INFO [stderr]     Checking recursion v0.1.0 (/opt/crater/workdir)
Dec 19 16:40:30.444 INFO [stderr] warning: unused import: `rand::Rng`
Dec 19 16:40:30.444 INFO [stderr]   --> src/main.rs:13:5
Dec 19 16:40:30.444 INFO [stderr]    |
Dec 19 16:40:30.444 INFO [stderr] 13 | use rand::Rng;
Dec 19 16:40:30.444 INFO [stderr]    |     ^^^^^^^^^
Dec 19 16:40:30.444 INFO [stderr]    |
Dec 19 16:40:30.444 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 16:40:30.444 INFO [stderr] 
Dec 19 16:40:30.564 INFO [stderr] warning: unused import: `rand::Rng`
Dec 19 16:40:30.564 INFO [stderr]   --> src/main.rs:13:5
Dec 19 16:40:30.564 INFO [stderr]    |
Dec 19 16:40:30.564 INFO [stderr] 13 | use rand::Rng;
Dec 19 16:40:30.564 INFO [stderr]    |     ^^^^^^^^^
Dec 19 16:40:30.564 INFO [stderr]    |
Dec 19 16:40:30.564 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 16:40:30.564 INFO [stderr] 
Dec 19 16:40:30.620 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:30.620 INFO [stderr]   --> src/main.rs:63:9
Dec 19 16:40:30.620 INFO [stderr]    |
Dec 19 16:40:30.620 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 19 16:40:30.624 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 19 16:40:30.624 INFO [stderr]    |
Dec 19 16:40:30.624 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:40:30.624 INFO [stderr] 
Dec 19 16:40:30.624 INFO [stderr] warning: unused variable: `v`
Dec 19 16:40:30.624 INFO [stderr]    --> src/main.rs:142:13
Dec 19 16:40:30.624 INFO [stderr]     |
Dec 19 16:40:30.624 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:30.624 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 19 16:40:30.624 INFO [stderr] 
Dec 19 16:40:30.624 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:30.624 INFO [stderr]    --> src/main.rs:164:9
Dec 19 16:40:30.624 INFO [stderr]     |
Dec 19 16:40:30.624 INFO [stderr] 164 |     for i in 0..len {
Dec 19 16:40:30.624 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 19 16:40:30.624 INFO [stderr] 
Dec 19 16:40:30.624 INFO [stderr] warning: value assigned to `data` is never read
Dec 19 16:40:30.624 INFO [stderr]    --> src/main.rs:199:13
Dec 19 16:40:30.624 INFO [stderr]     |
Dec 19 16:40:30.624 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 19 16:40:30.624 INFO [stderr]     |             ^^^^
Dec 19 16:40:30.624 INFO [stderr]     |
Dec 19 16:40:30.624 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 16:40:30.624 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 16:40:30.624 INFO [stderr] 
Dec 19 16:40:30.644 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:40:30.648 INFO [stderr]    --> src/main.rs:142:9
Dec 19 16:40:30.648 INFO [stderr]     |
Dec 19 16:40:30.648 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:30.648 INFO [stderr]     |         ----^
Dec 19 16:40:30.648 INFO [stderr]     |         |
Dec 19 16:40:30.648 INFO [stderr]     |         help: remove this `mut`
Dec 19 16:40:30.648 INFO [stderr]     |
Dec 19 16:40:30.648 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 16:40:30.648 INFO [stderr] 
Dec 19 16:40:30.660 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:30.660 INFO [stderr]   --> src/main.rs:63:9
Dec 19 16:40:30.664 INFO [stderr]    |
Dec 19 16:40:30.664 INFO [stderr] 63 |     for i in 3..(n+1) {
Dec 19 16:40:30.664 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 19 16:40:30.664 INFO [stderr]    |
Dec 19 16:40:30.664 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:40:30.664 INFO [stderr] 
Dec 19 16:40:30.664 INFO [stderr] warning: unused variable: `v`
Dec 19 16:40:30.664 INFO [stderr]    --> src/main.rs:142:13
Dec 19 16:40:30.664 INFO [stderr]     |
Dec 19 16:40:30.664 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:30.664 INFO [stderr]     |             ^ help: consider using `_v` instead
Dec 19 16:40:30.664 INFO [stderr] 
Dec 19 16:40:30.664 INFO [stderr] warning: unused variable: `i`
Dec 19 16:40:30.664 INFO [stderr]    --> src/main.rs:164:9
Dec 19 16:40:30.664 INFO [stderr]     |
Dec 19 16:40:30.664 INFO [stderr] 164 |     for i in 0..len {
Dec 19 16:40:30.664 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 19 16:40:30.664 INFO [stderr] 
Dec 19 16:40:30.664 INFO [stderr] warning: value assigned to `data` is never read
Dec 19 16:40:30.664 INFO [stderr]    --> src/main.rs:199:13
Dec 19 16:40:30.664 INFO [stderr]     |
Dec 19 16:40:30.664 INFO [stderr] 199 |     let mut data: Vec<i32> = Vec::new();
Dec 19 16:40:30.664 INFO [stderr]     |             ^^^^
Dec 19 16:40:30.664 INFO [stderr]     |
Dec 19 16:40:30.664 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 16:40:30.664 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 16:40:30.664 INFO [stderr] 
Dec 19 16:40:30.668 INFO [stderr] warning: unused variable: `n`
Dec 19 16:40:30.668 INFO [stderr]    --> src/main.rs:230:17
Dec 19 16:40:30.668 INFO [stderr]     |
Dec 19 16:40:30.668 INFO [stderr] 230 |             let n = a.len() as i32;
Dec 19 16:40:30.668 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 19 16:40:30.668 INFO [stderr] 
Dec 19 16:40:30.668 INFO [stderr] warning: unused variable: `n`
Dec 19 16:40:30.668 INFO [stderr]    --> src/main.rs:241:17
Dec 19 16:40:30.668 INFO [stderr]     |
Dec 19 16:40:30.668 INFO [stderr] 241 |             let n = a.len() as i32;
Dec 19 16:40:30.668 INFO [stderr]     |                 ^ help: consider using `_n` instead
Dec 19 16:40:30.668 INFO [stderr] 
Dec 19 16:40:30.676 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 19 16:40:30.676 INFO [stderr]   --> src/main.rs:17:1
Dec 19 16:40:30.676 INFO [stderr]    |
Dec 19 16:40:30.677 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 19 16:40:30.707 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.707 INFO [stderr]    |
Dec 19 16:40:30.707 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:40:30.707 INFO [stderr] 
Dec 19 16:40:30.707 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 19 16:40:30.707 INFO [stderr]   --> src/main.rs:24:1
Dec 19 16:40:30.707 INFO [stderr]    |
Dec 19 16:40:30.707 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 19 16:40:30.707 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.707 INFO [stderr] 
Dec 19 16:40:30.707 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 19 16:40:30.707 INFO [stderr]    --> src/main.rs:139:1
Dec 19 16:40:30.707 INFO [stderr]     |
Dec 19 16:40:30.707 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 19 16:40:30.707 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.707 INFO [stderr] 
Dec 19 16:40:30.707 INFO [stderr] warning: function is never used: `pick`
Dec 19 16:40:30.707 INFO [stderr]    --> src/main.rs:155:1
Dec 19 16:40:30.707 INFO [stderr]     |
Dec 19 16:40:30.707 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 19 16:40:30.707 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.707 INFO [stderr] 
Dec 19 16:40:30.707 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 19 16:40:30.708 INFO [stderr]    --> src/main.rs:162:1
Dec 19 16:40:30.708 INFO [stderr]     |
Dec 19 16:40:30.708 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 19 16:40:30.708 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.708 INFO [stderr] 
Dec 19 16:40:30.708 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 19 16:40:30.708 INFO [stderr]    --> src/main.rs:171:1
Dec 19 16:40:30.708 INFO [stderr]     |
Dec 19 16:40:30.708 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 19 16:40:30.708 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.708 INFO [stderr] 
Dec 19 16:40:30.708 INFO [stderr] warning: function is never used: `read_vector_from_file`
Dec 19 16:40:30.708 INFO [stderr]    --> src/main.rs:196:1
Dec 19 16:40:30.708 INFO [stderr]     |
Dec 19 16:40:30.708 INFO [stderr] 196 | fn read_vector_from_file(p: &str) -> Vec<i32> {
Dec 19 16:40:30.708 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.708 INFO [stderr] 
Dec 19 16:40:30.708 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:40:30.708 INFO [stderr]    --> src/main.rs:142:9
Dec 19 16:40:30.708 INFO [stderr]     |
Dec 19 16:40:30.708 INFO [stderr] 142 |     let mut v: Vec<i32> = Vec::new();
Dec 19 16:40:30.708 INFO [stderr]     |         ----^
Dec 19 16:40:30.708 INFO [stderr]     |         |
Dec 19 16:40:30.708 INFO [stderr]     |         help: remove this `mut`
Dec 19 16:40:30.708 INFO [stderr]     |
Dec 19 16:40:30.708 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 16:40:30.708 INFO [stderr] 
Dec 19 16:40:30.740 INFO [stderr] warning: function is never used: `get_sort_time`
Dec 19 16:40:30.740 INFO [stderr]   --> src/main.rs:17:1
Dec 19 16:40:30.741 INFO [stderr]    |
Dec 19 16:40:30.741 INFO [stderr] 17 | fn get_sort_time(mut v: Vec<i32>, f: fn(&mut Vec<i32>)) -> u64 {
Dec 19 16:40:30.741 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.741 INFO [stderr]    |
Dec 19 16:40:30.741 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:40:30.741 INFO [stderr] 
Dec 19 16:40:30.742 INFO [stderr] warning: function is never used: `get_fibo_time`
Dec 19 16:40:30.742 INFO [stderr]   --> src/main.rs:24:1
Dec 19 16:40:30.742 INFO [stderr]    |
Dec 19 16:40:30.742 INFO [stderr] 24 | fn get_fibo_time(n: u64, f: fn(u64) -> u64) -> u64 {
Dec 19 16:40:30.742 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.742 INFO [stderr] 
Dec 19 16:40:30.742 INFO [stderr] warning: function is never used: `make_test_vec_files`
Dec 19 16:40:30.742 INFO [stderr]    --> src/main.rs:139:1
Dec 19 16:40:30.742 INFO [stderr]     |
Dec 19 16:40:30.742 INFO [stderr] 139 | fn make_test_vec_files(start: i32, end: i32) {
Dec 19 16:40:30.742 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.742 INFO [stderr] 
Dec 19 16:40:30.742 INFO [stderr] warning: function is never used: `pick`
Dec 19 16:40:30.742 INFO [stderr]    --> src/main.rs:155:1
Dec 19 16:40:30.742 INFO [stderr]     |
Dec 19 16:40:30.742 INFO [stderr] 155 | fn pick(a: i32, b: i32) -> i32 {
Dec 19 16:40:30.742 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.742 INFO [stderr] 
Dec 19 16:40:30.742 INFO [stderr] warning: function is never used: `get_rand_vector`
Dec 19 16:40:30.742 INFO [stderr]    --> src/main.rs:162:1
Dec 19 16:40:30.742 INFO [stderr]     |
Dec 19 16:40:30.742 INFO [stderr] 162 | fn get_rand_vector(len: usize) -> Vec<i32> {
Dec 19 16:40:30.742 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.742 INFO [stderr] 
Dec 19 16:40:30.742 INFO [stderr] warning: function is never used: `save_vec_to_file`
Dec 19 16:40:30.742 INFO [stderr]    --> src/main.rs:171:1
Dec 19 16:40:30.742 INFO [stderr]     |
Dec 19 16:40:30.742 INFO [stderr] 171 | fn save_vec_to_file(v: Vec<i32>) {
Dec 19 16:40:30.742 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:40:30.742 INFO [stderr] 
Dec 19 16:40:30.808 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Dec 19 16:40:31.644 INFO running `"docker" "inspect" "7c464780a67b192ea2fab4b1e10f5d2a11b87464a6eeefc85a47540092c739fd"`
Dec 19 16:40:31.866 INFO running `"docker" "rm" "-f" "7c464780a67b192ea2fab4b1e10f5d2a11b87464a6eeefc85a47540092c739fd"`
Dec 19 16:40:32.140 INFO [stdout] 7c464780a67b192ea2fab4b1e10f5d2a11b87464a6eeefc85a47540092c739fd