[INFO] updating cached repository https://github.com/diasdavid/sherlock-and-pairs-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f768263621d1ea7ed2262369ea051774d4a8953
[INFO] checking diasdavid/sherlock-and-pairs-rust against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiasdavid%2Fsherlock-and-pairs-rust" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/diasdavid/sherlock-and-pairs-rust on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/diasdavid/sherlock-and-pairs-rust
[INFO] finished tweaking git repo https://github.com/diasdavid/sherlock-and-pairs-rust
[INFO] tweaked toml for git repo https://github.com/diasdavid/sherlock-and-pairs-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/diasdavid/sherlock-and-pairs-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e75314d919cd6982820a81f6971e23b0878ff13e9309cef894ca1f84e157c524
[INFO] running `"docker" "start" "-a" "e75314d919cd6982820a81f6971e23b0878ff13e9309cef894ca1f84e157c524"`
[INFO] [stderr]     Checking arrays-and-sorting v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]   --> src/main.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut total: int = 0i;
[INFO] [stderr]    |                              ^^ invalid suffix `i`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]   --> src/main.rs:30:25
[INFO] [stderr]    |
[INFO] [stderr] 30 |             if *count > 1i {
[INFO] [stderr]    |                         ^^ invalid suffix `i`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]   --> src/main.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut total: int = 0i;
[INFO] [stderr]    |                              ^^ invalid suffix `i`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]   --> src/main.rs:30:25
[INFO] [stderr]    |
[INFO] [stderr] 30 |             if *count > 1i {
[INFO] [stderr]    |                         ^^ invalid suffix `i`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]  --> src/main.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                        ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from_str` in this scope
[INFO] [stderr]  --> src/main.rs:7:30
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                              ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/main.rs:16:14
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for _ in range(0, n_experiments) {
[INFO] [stderr]    |              ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:17:24
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                        ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from_str` in this scope
[INFO] [stderr]   --> src/main.rs:17:30
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                              ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let numbers: Vec<int> = 
[INFO] [stderr]    |                          ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from_str` in this scope
[INFO] [stderr]   --> src/main.rs:24:28
[INFO] [stderr]    |
[INFO] [stderr] 24 |                   .map(|s| from_str(s).unwrap())    // (4)
[INFO] [stderr]    |                            ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let counts: Vec<int> = vec_count_elem(numbers);
[INFO] [stderr]    |                         ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:28:24
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut total: int = 0i;
[INFO] [stderr]    |                        ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:39:26
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn smart_permutations(n: int) -> int { n * (n-1) }
[INFO] [stderr]    |                          ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:39:34
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn smart_permutations(n: int) -> int { n * (n-1) }
[INFO] [stderr]    |                                  ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  -         ^^^ not found in this scope
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:41:41
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  -                      ^^^ not found in this scope
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  - help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr]    |                             ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:42:34
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  - help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr]    |                                  ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  - help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr] 43 |     let mut result: Vec<int> = Vec::new();
[INFO] [stderr]    |                         ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/main.rs:42:56
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr]    |                                                        ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]  --> src/main.rs:7:46
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                                              ^^^^^^^^^- supplied 0 arguments
[INFO] [stderr]   |                                              |
[INFO] [stderr]   |                                              expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]  --> src/main.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                        ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from_str` in this scope
[INFO] [stderr]  --> src/main.rs:7:30
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                              ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/main.rs:16:14
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for _ in range(0, n_experiments) {
[INFO] [stderr]    |              ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:17:24
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                        ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from_str` in this scope
[INFO] [stderr]   --> src/main.rs:17:30
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                              ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let numbers: Vec<int> = 
[INFO] [stderr]    |                          ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from_str` in this scope
[INFO] [stderr]   --> src/main.rs:24:28
[INFO] [stderr]    |
[INFO] [stderr] 24 |                   .map(|s| from_str(s).unwrap())    // (4)
[INFO] [stderr]    |                            ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let counts: Vec<int> = vec_count_elem(numbers);
[INFO] [stderr]    |                         ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:28:24
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut total: int = 0i;
[INFO] [stderr]    |                        ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:39:26
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn smart_permutations(n: int) -> int { n * (n-1) }
[INFO] [stderr]    |                          ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:39:34
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn smart_permutations(n: int) -> int { n * (n-1) }
[INFO] [stderr]    |                                  ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  -         ^^^ not found in this scope
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:41:41
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  -                      ^^^ not found in this scope
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  - help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr]    |                             ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:42:34
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  - help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr]    |                                  ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn vec_count_elem(vec: Vec<int>) -> Vec<int> {
[INFO] [stderr]    |                  - help: you might be missing a type parameter: `<int>`
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr] 43 |     let mut result: Vec<int> = Vec::new();
[INFO] [stderr]    |                         ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/main.rs:42:56
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut counts: HashMap<int, int> = HashMap::new();;
[INFO] [stderr]    |                                                        ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `usize` in the current scope
[INFO] [stderr]  --> src/main.rs:7:67
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                                                                   ^^^^^^^^ method not found in `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]   --> src/main.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                                              ^^^^^^^^^- supplied 0 arguments
[INFO] [stderr]    |                                              |
[INFO] [stderr]    |                                              expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `usize` in the current scope
[INFO] [stderr]   --> src/main.rs:17:67
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                                                                   ^^^^^^^^ method not found in `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]   --> src/main.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |             reader.read_line().unwrap().as_slice()  // (1)
[INFO] [stderr]    |                    ^^^^^^^^^- supplied 0 arguments
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `usize` in the current scope
[INFO] [stderr]   --> src/main.rs:21:41
[INFO] [stderr]    |
[INFO] [stderr] 21 |             reader.read_line().unwrap().as_slice()  // (1)
[INFO] [stderr]    |                                         ^^^^^^^^ method not found in `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]  --> src/main.rs:7:46
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                                              ^^^^^^^^^- supplied 0 arguments
[INFO] [stderr]   |                                              |
[INFO] [stderr]   |                                              expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 24 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0412, E0425, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `arrays-and-sorting`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `usize` in the current scope
[INFO] [stderr]  --> src/main.rs:7:67
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let n_experiments: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]   |                                                                   ^^^^^^^^ method not found in `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]   --> src/main.rs:17:46
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                                              ^^^^^^^^^- supplied 0 arguments
[INFO] [stderr]    |                                              |
[INFO] [stderr]    |                                              expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `usize` in the current scope
[INFO] [stderr]   --> src/main.rs:17:67
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let n_numbers: int = from_str(reader.read_line().unwrap().as_slice().trim()).unwrap();
[INFO] [stderr]    |                                                                   ^^^^^^^^ method not found in `usize`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]   --> src/main.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |             reader.read_line().unwrap().as_slice()  // (1)
[INFO] [stderr]    |                    ^^^^^^^^^- supplied 0 arguments
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `usize` in the current scope
[INFO] [stderr]   --> src/main.rs:21:41
[INFO] [stderr]    |
[INFO] [stderr] 21 |             reader.read_line().unwrap().as_slice()  // (1)
[INFO] [stderr]    |                                         ^^^^^^^^ method not found in `usize`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 24 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0412, E0425, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `arrays-and-sorting`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e75314d919cd6982820a81f6971e23b0878ff13e9309cef894ca1f84e157c524"`
[INFO] running `"docker" "rm" "-f" "e75314d919cd6982820a81f6971e23b0878ff13e9309cef894ca1f84e157c524"`
[INFO] [stdout] e75314d919cd6982820a81f6971e23b0878ff13e9309cef894ca1f84e157c524
