[INFO] updating cached repository https://github.com/steshaw/rustlings [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] 06b46229ca0dd5b5fb874746d6ace8665151b11f [INFO] checking steshaw/rustlings against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteshaw%2Frustlings" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/steshaw/rustlings on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c [INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/steshaw/rustlings [INFO] finished tweaking git repo https://github.com/steshaw/rustlings [INFO] tweaked toml for git repo https://github.com/steshaw/rustlings written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/steshaw/rustlings already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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] f4a04a1dbb1e7dc82e10d031be9e9236204742b67ca3ab9ba4611540e83b935d [INFO] running `"docker" "start" "-a" "f4a04a1dbb1e7dc82e10d031be9e9236204742b67ca3ab9ba4611540e83b935d"` [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Checking parking_lot_core v0.5.0 [INFO] [stderr] Checking parking_lot v0.8.0 [INFO] [stderr] Checking console v0.7.5 [INFO] [stderr] Checking console v0.6.2 [INFO] [stderr] Checking indicatif v0.9.0 [INFO] [stderr] Checking serde v1.0.92 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking escargot v0.4.0 [INFO] [stderr] Checking rustlings v2.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] warning: enum is never used: `Message` [INFO] [stderr] --> examples/enums3.rs:6:6 [INFO] [stderr] | [INFO] [stderr] 6 | enum Message { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `State` [INFO] [stderr] --> examples/enums3.rs:20:8 [INFO] [stderr] | [INFO] [stderr] 20 | struct State { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `change_color` [INFO] [stderr] --> examples/enums3.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | fn change_color(&mut self, color: (u8, u8, u8)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `quit` [INFO] [stderr] --> examples/enums3.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | fn quit(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `echo` [INFO] [stderr] --> examples/enums3.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | fn echo(&self, s: String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `move_position` [INFO] [stderr] --> examples/enums3.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | fn move_position(&mut self, p: Point) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `process` [INFO] [stderr] --> examples/enums3.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | fn process(&mut self, message: Message) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `test3` [INFO] [stderr] --> examples/test3.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | / pub fn times_two(num: i32) -> i32 { [INFO] [stderr] 11 | | num * 2 [INFO] [stderr] 12 | | } [INFO] [stderr] 13 | | [INFO] [stderr] ... | [INFO] [stderr] 26 | | } [INFO] [stderr] 27 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `examples/test3.rs` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] error: could not compile `rustlings`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> examples/test1.rs:12:29 [INFO] [stderr] | [INFO] [stderr] 12 | let price_per_item = if (quantity > 40) { 1 } else { 2 }; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `test1` [INFO] [stderr] --> examples/test1.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | / fn calculate_apple_price(quantity: i32) -> i32 { [INFO] [stderr] 12 | | let price_per_item = if (quantity > 40) { 1 } else { 2 }; [INFO] [stderr] 13 | | price_per_item * quantity [INFO] [stderr] 14 | | } [INFO] [stderr] ... | [INFO] [stderr] 27 | | assert_eq!(65, price2); [INFO] [stderr] 28 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `examples/test1.rs` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] error: could not compile `rustlings`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "f4a04a1dbb1e7dc82e10d031be9e9236204742b67ca3ab9ba4611540e83b935d"` [INFO] running `"docker" "rm" "-f" "f4a04a1dbb1e7dc82e10d031be9e9236204742b67ca3ab9ba4611540e83b935d"` [INFO] [stdout] f4a04a1dbb1e7dc82e10d031be9e9236204742b67ca3ab9ba4611540e83b935d