[INFO] updating cached repository https://github.com/wilsoniya/dailyprog188-arrows
[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] f6070f7a0fe9fda9f6d37b99e188aa6d52f1a1f4
[INFO] checking wilsoniya/dailyprog188-arrows against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilsoniya%2Fdailyprog188-arrows" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wilsoniya/dailyprog188-arrows on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/wilsoniya/dailyprog188-arrows
[INFO] finished tweaking git repo https://github.com/wilsoniya/dailyprog188-arrows
[INFO] tweaked toml for git repo https://github.com/wilsoniya/dailyprog188-arrows written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/wilsoniya/dailyprog188-arrows already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3bc3cc32f9ba3e3c9a66e780c40667d50c69a21c8d892433f1add5c439a7756c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3bc3cc32f9ba3e3c9a66e780c40667d50c69a21c8d892433f1add5c439a7756c"`
[INFO] [stderr]     Checking arrows v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]    --> src/main.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let mut i = 0u;
[INFO] [stderr]     |                     ^^ invalid suffix `u`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]    --> src/main.rs:135:27
[INFO] [stderr]     |
[INFO] [stderr] 135 |         if cycle_start != 0u {
[INFO] [stderr]     |                           ^^ invalid suffix `u`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]    --> src/main.rs:149:30
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut max_length = 0u;
[INFO] [stderr]     |                              ^^ invalid suffix `u`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]    --> src/main.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let mut i = 0u;
[INFO] [stderr]     |                     ^^ invalid suffix `u`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]    --> src/main.rs:135:27
[INFO] [stderr]     |
[INFO] [stderr] 135 |         if cycle_start != 0u {
[INFO] [stderr]     |                           ^^ invalid suffix `u`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]    --> src/main.rs:149:30
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let mut max_length = 0u;
[INFO] [stderr]     |                              ^^ invalid suffix `u`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::io::File`, `std::io::BufferedReader`
[INFO] [stderr]  --> src/main.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{File, BufferedReader};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^^^^^^^ no `BufferedReader` in `io`
[INFO] [stderr]   |               |
[INFO] [stderr]   |               no `File` in `io`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `deriving` in this scope
[INFO] [stderr]   --> src/main.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[deriving(Show, Clone)]
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `deriving` in this scope
[INFO] [stderr]   --> src/main.rs:55:3
[INFO] [stderr]    |
[INFO] [stderr] 55 | #[deriving(Show)]
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `deriving` in this scope
[INFO] [stderr]    --> src/main.rs:166:3
[INFO] [stderr]     |
[INFO] [stderr] 166 | #[deriving(Show, Clone)]
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> src/main.rs:67:20
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let path = Path::new(fname);
[INFO] [stderr]    |                    ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:14
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[INFO] [stderr]   |              ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::io::File`, `std::io::BufferedReader`
[INFO] [stderr]  --> src/main.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{File, BufferedReader};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^^^^^^^ no `BufferedReader` in `io`
[INFO] [stderr]   |               |
[INFO] [stderr]   |               no `File` in `io`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `deriving` in this scope
[INFO] [stderr]   --> src/main.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[deriving(Show, Clone)]
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `deriving` in this scope
[INFO] [stderr]   --> src/main.rs:55:3
[INFO] [stderr]    |
[INFO] [stderr] 55 | #[deriving(Show)]
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `deriving` in this scope
[INFO] [stderr]    --> src/main.rs:166:3
[INFO] [stderr]     |
[INFO] [stderr] 166 | #[deriving(Show, Clone)]
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]  --> src/main.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[INFO] [stderr]   |                           ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:43
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[INFO] [stderr]   |                                           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:52
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[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:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let dim = dimension as int;
[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:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let new = (pos as int) + delta;
[INFO] [stderr]    |                       ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:13:33
[INFO] [stderr]    |
[INFO] [stderr] 13 |         true  => (new % dim) as uint,
[INFO] [stderr]    |                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 |         false => (dim + new) as uint, 
[INFO] [stderr]    |                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub width: uint,
[INFO] [stderr]    |                ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub height: uint,
[INFO] [stderr]    |                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `from_str` in this scope
[INFO] [stderr]   --> src/main.rs:73:25
[INFO] [stderr]    |
[INFO] [stderr] 73 |             .filter_map(from_str).collect::<Vec<uint>>().as_slice() {
[INFO] [stderr]    |                         ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:73:49
[INFO] [stderr]    |
[INFO] [stderr] 64 | impl GraphMeta {
[INFO] [stderr]    |     - help: you might be missing a type parameter: `<uint>`
[INFO] [stderr] ...
[INFO] [stderr] 73 |             .filter_map(from_str).collect::<Vec<uint>>().as_slice() {
[INFO] [stderr]    |                                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:104:37
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn get_cycle_from(&self, x: uint, y: uint) -> Cycle {
[INFO] [stderr]     |                                     ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:104:46
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn get_cycle_from(&self, x: uint, y: uint) -> Cycle {
[INFO] [stderr]     |                                              ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `as_vec` in module `std::vec`
[INFO] [stderr]    --> src/main.rs:137:23
[INFO] [stderr]     |
[INFO] [stderr] 137 |             std::vec::as_vec(cycle.slice_from_or_fail(&cycle_start)).deref()
[INFO] [stderr]     |                       ^^^^^^ not found in `std::vec`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]    --> src/main.rs:152:18
[INFO] [stderr]     |
[INFO] [stderr] 152 |         for x in range(0, self.width) {
[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:153:22
[INFO] [stderr]     |
[INFO] [stderr] 153 |             for y in range(0, self.height) {
[INFO] [stderr]     |                      ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:168:12
[INFO] [stderr]     |
[INFO] [stderr] 168 |     pub x: uint,
[INFO] [stderr]     |            ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> src/main.rs:67:20
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let path = Path::new(fname);
[INFO] [stderr]    |                    ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:169:12
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub y: uint,
[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:179:14
[INFO] [stderr]     |
[INFO] [stderr] 179 |     for _ in range(0, meta.height) {
[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:181:18
[INFO] [stderr]     |
[INFO] [stderr] 181 |         for _ in range(0, meta.width) {
[INFO] [stderr]     |                  ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `args` in module `os`
[INFO] [stderr]    --> src/main.rs:197:20
[INFO] [stderr]     |
[INFO] [stderr] 197 |     let args = os::args();
[INFO] [stderr]     |                    ^^^^ not found in `os`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 5   | use std::env::args;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:14
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[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:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[INFO] [stderr]   |                           ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:43
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[INFO] [stderr]   |                                           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]  --> src/main.rs:9:52
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn step(pos: uint, delta: int, dimension: uint) -> uint {
[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:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let dim = dimension as int;
[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:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let new = (pos as int) + delta;
[INFO] [stderr]    |                       ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:13:33
[INFO] [stderr]    |
[INFO] [stderr] 13 |         true  => (new % dim) as uint,
[INFO] [stderr]    |                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 |         false => (dim + new) as uint, 
[INFO] [stderr]    |                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub width: uint,
[INFO] [stderr]    |                ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:58:17
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub height: uint,
[INFO] [stderr]    |                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `from_str` in this scope
[INFO] [stderr]   --> src/main.rs:73:25
[INFO] [stderr]    |
[INFO] [stderr] 73 |             .filter_map(from_str).collect::<Vec<uint>>().as_slice() {
[INFO] [stderr]    |                         ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/main.rs:73:49
[INFO] [stderr]    |
[INFO] [stderr] 64 | impl GraphMeta {
[INFO] [stderr]    |     - help: you might be missing a type parameter: `<uint>`
[INFO] [stderr] ...
[INFO] [stderr] 73 |             .filter_map(from_str).collect::<Vec<uint>>().as_slice() {
[INFO] [stderr]    |                                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:104:37
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn get_cycle_from(&self, x: uint, y: uint) -> Cycle {
[INFO] [stderr]     |                                     ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:104:46
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn get_cycle_from(&self, x: uint, y: uint) -> Cycle {
[INFO] [stderr]     |                                              ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `as_vec` in module `std::vec`
[INFO] [stderr]    --> src/main.rs:137:23
[INFO] [stderr]     |
[INFO] [stderr] 137 |             std::vec::as_vec(cycle.slice_from_or_fail(&cycle_start)).deref()
[INFO] [stderr]     |                       ^^^^^^ not found in `std::vec`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]    --> src/main.rs:152:18
[INFO] [stderr]     |
[INFO] [stderr] 152 |         for x in range(0, self.width) {
[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:153:22
[INFO] [stderr]     |
[INFO] [stderr] 153 |             for y in range(0, self.height) {
[INFO] [stderr]     |                      ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:168:12
[INFO] [stderr]     |
[INFO] [stderr] 168 |     pub x: uint,
[INFO] [stderr]     |            ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]    --> src/main.rs:169:12
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub y: uint,
[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:179:14
[INFO] [stderr]     |
[INFO] [stderr] 179 |     for _ in range(0, meta.height) {
[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:181:18
[INFO] [stderr]     |
[INFO] [stderr] 181 |         for _ in range(0, meta.width) {
[INFO] [stderr]     |                  ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `args` in module `os`
[INFO] [stderr]    --> src/main.rs:197:20
[INFO] [stderr]     |
[INFO] [stderr] 197 |     let args = os::args();
[INFO] [stderr]     |                    ^^^^ not found in `os`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 5   | use std::env::args;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for struct `std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:72:51
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let (width, height) = match file_lines[0].as_slice().trim().split(' ')
[INFO] [stderr]    |                                                   ^^^^^^^^ method not found in `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for reference `&std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:83:22
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 line.as_slice().trim().chars().map(Direction::from_glyph)
[INFO] [stderr]    |                      ^^^^^^^^ method not found in `&std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for struct `std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:72:51
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let (width, height) = match file_lines[0].as_slice().trim().split(' ')
[INFO] [stderr]    |                                                   ^^^^^^^^ method not found in `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `slice_from_or_fail` found for struct `std::vec::Vec<Node>` in the current scope
[INFO] [stderr]    --> src/main.rs:137:36
[INFO] [stderr]     |
[INFO] [stderr] 137 |             std::vec::as_vec(cycle.slice_from_or_fail(&cycle_start)).deref()
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^ method not found in `std::vec::Vec<Node>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_chars` found for struct `std::string::String` in the current scope
[INFO] [stderr]    --> src/main.rs:192:32
[INFO] [stderr]     |
[INFO] [stderr] 192 |         println!("{}", String::from_chars(line.as_slice()));
[INFO] [stderr]     |                                ^^^^^^^^^^ function or associated item not found in `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for reference `&std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:83:22
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 line.as_slice().trim().chars().map(Direction::from_glyph)
[INFO] [stderr]    |                      ^^^^^^^^ method not found in `&std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 34 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0425, E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error[E0599]: no method named `slice_from_or_fail` found for struct `std::vec::Vec<Node>` in the current scope
[INFO] [stderr]    --> src/main.rs:137:36
[INFO] [stderr]     |
[INFO] [stderr] 137 |             std::vec::as_vec(cycle.slice_from_or_fail(&cycle_start)).deref()
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^ method not found in `std::vec::Vec<Node>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_chars` found for struct `std::string::String` in the current scope
[INFO] [stderr]    --> src/main.rs:192:32
[INFO] [stderr]     |
[INFO] [stderr] 192 |         println!("{}", String::from_chars(line.as_slice()));
[INFO] [stderr]     |                                ^^^^^^^^^^ function or associated item not found in `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `arrows`.
[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: aborting due to 34 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0425, E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `arrows`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3bc3cc32f9ba3e3c9a66e780c40667d50c69a21c8d892433f1add5c439a7756c"`
[INFO] running `"docker" "rm" "-f" "3bc3cc32f9ba3e3c9a66e780c40667d50c69a21c8d892433f1add5c439a7756c"`
[INFO] [stdout] 3bc3cc32f9ba3e3c9a66e780c40667d50c69a21c8d892433f1add5c439a7756c