[INFO] updating cached repository helloooooo/Ants-book
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/helloooooo/Ants-book
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/helloooooo/Ants-book" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/helloooooo/Ants-book"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/helloooooo/Ants-book'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/helloooooo/Ants-book" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/helloooooo/Ants-book"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/helloooooo/Ants-book'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9c7aa8a5d069a8ed9ed865faf3e8d9ddc7e53f84
[INFO] sha for GitHub repo helloooooo/Ants-book: 9c7aa8a5d069a8ed9ed865faf3e8d9ddc7e53f84
[INFO] validating manifest of helloooooo/Ants-book on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of helloooooo/Ants-book on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing helloooooo/Ants-book
[INFO] finished frobbing helloooooo/Ants-book
[INFO] frobbed toml for helloooooo/Ants-book written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/helloooooo/Ants-book/Cargo.toml
[INFO] started frobbing helloooooo/Ants-book
[INFO] finished frobbing helloooooo/Ants-book
[INFO] frobbed toml for helloooooo/Ants-book written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/helloooooo/Ants-book/Cargo.toml
[INFO] crate helloooooo/Ants-book has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking helloooooo/Ants-book against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-4/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/helloooooo/Ants-book:/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" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3e495b243b2df73273d1aefb4c33e4980134a3979d565b298171123a1568af1e
[INFO] running `"docker" "start" "-a" "3e495b243b2df73273d1aefb4c33e4980134a3979d565b298171123a1568af1e"`
[INFO] [stderr]     Checking Ants-book v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]  --> src/selection_sort.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 |             if (v[j as usize] < v[minj as usize]) {
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]  --> src/selection_sort.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 |             if (v[j as usize] < v[minj as usize]) {
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/que.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn que(v: Vec<(String, i64)>, n: i64, t: i64) -> Vec<(String, i64)> {
[INFO] [stderr]    |                                   ^ help: consider using `_n` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/que.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(n: usize) -> Self {
[INFO] [stderr]    |            ^ help: consider using `_n` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read`
[INFO] [stderr]  --> src/insertionsort.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn read<T: std::str::FromStr>() -> T {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec`
[INFO] [stderr]  --> src/insertionsort.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn read_vec<T: std::str::FromStr>() -> Vec<T> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec2`
[INFO] [stderr]   --> src/insertionsort.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn read_vec2<T: std::str::FromStr>(n: u32) -> Vec<Vec<T>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/insertionsort.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn main() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MAX_SIZE`
[INFO] [stderr]  --> src/que.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const MAX_SIZE: usize = 50;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Que`
[INFO] [stderr]  --> src/que.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Que {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/que.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(n: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `isEmpty`
[INFO] [stderr]   --> src/que.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn isEmpty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `isFull`
[INFO] [stderr]   --> src/que.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn isFull(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enqueue`
[INFO] [stderr]   --> src/que.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn enqueue(&mut self, x: i64) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dequeue`
[INFO] [stderr]   --> src/que.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn dequeue(&mut self) -> i64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Ants_book` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `ants_book`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isEmpty` should have a snake case name
[INFO] [stderr]   --> src/que.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn isEmpty(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^ help: convert the identifier to snake case: `is_empty`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isFull` should have a snake case name
[INFO] [stderr]   --> src/que.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn isFull(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^ help: convert the identifier to snake case: `is_full`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isEmpty` should have a snake case name
[INFO] [stderr]   --> src/stack.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn isEmpty(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^ help: convert the identifier to snake case: `is_empty`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isFull` should have a snake case name
[INFO] [stderr]   --> src/stack.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn isFull(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^ help: convert the identifier to snake case: `is_full`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/que.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn que(v: Vec<(String, i64)>, n: i64, t: i64) -> Vec<(String, i64)> {
[INFO] [stderr]    |                                   ^ help: consider using `_n` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/que.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(n: usize) -> Self {
[INFO] [stderr]    |            ^ help: consider using `_n` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read`
[INFO] [stderr]  --> src/insertionsort.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn read<T: std::str::FromStr>() -> T {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec`
[INFO] [stderr]  --> src/insertionsort.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn read_vec<T: std::str::FromStr>() -> Vec<T> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec2`
[INFO] [stderr]   --> src/insertionsort.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn read_vec2<T: std::str::FromStr>(n: u32) -> Vec<Vec<T>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/insertionsort.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn main() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MAX_SIZE`
[INFO] [stderr]  --> src/que.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const MAX_SIZE: usize = 50;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Que`
[INFO] [stderr]  --> src/que.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Que {
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/que.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(n: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `isEmpty`
[INFO] [stderr]   --> src/que.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn isEmpty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `isFull`
[INFO] [stderr]   --> src/que.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn isFull(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `enqueue`
[INFO] [stderr]   --> src/que.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn enqueue(&mut self, x: i64) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dequeue`
[INFO] [stderr]   --> src/que.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn dequeue(&mut self) -> i64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Ants_book` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `ants_book`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isEmpty` should have a snake case name
[INFO] [stderr]   --> src/que.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn isEmpty(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^ help: convert the identifier to snake case: `is_empty`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isFull` should have a snake case name
[INFO] [stderr]   --> src/que.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn isFull(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^ help: convert the identifier to snake case: `is_full`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isEmpty` should have a snake case name
[INFO] [stderr]   --> src/stack.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn isEmpty(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^ help: convert the identifier to snake case: `is_empty`
[INFO] [stderr] 
[INFO] [stderr] warning: method `isFull` should have a snake case name
[INFO] [stderr]   --> src/stack.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn isFull(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^ help: convert the identifier to snake case: `is_full`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ants_book::selection_sort::*`
[INFO] [stderr]   --> tests/lib.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         use Ants_book::selection_sort::*;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/main.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let s: String = read();
[INFO] [stderr]   |         ^ help: consider using `_s` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec`
[INFO] [stderr]  --> src/scaneer.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn read_vec<T: std::str::FromStr>() -> Vec<T> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec2`
[INFO] [stderr]   --> src/scaneer.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn read_vec2<T: std::str::FromStr>(n: u32) -> Vec<Vec<T>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Ants_book` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `ants_book`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/main.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let s: String = read();
[INFO] [stderr]   |         ^ help: consider using `_s` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec`
[INFO] [stderr]  --> src/scaneer.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn read_vec<T: std::str::FromStr>() -> Vec<T> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_vec2`
[INFO] [stderr]   --> src/scaneer.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn read_vec2<T: std::str::FromStr>(n: u32) -> Vec<Vec<T>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Ants_book` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `ants_book`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "3e495b243b2df73273d1aefb4c33e4980134a3979d565b298171123a1568af1e"`
[INFO] running `"docker" "rm" "-f" "3e495b243b2df73273d1aefb4c33e4980134a3979d565b298171123a1568af1e"`
[INFO] [stdout] 3e495b243b2df73273d1aefb4c33e4980134a3979d565b298171123a1568af1e