[INFO] cloning repository https://github.com/elroykanye/rust-50-coding-challenges [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elroykanye/rust-50-coding-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felroykanye%2Frust-50-coding-challenges", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felroykanye%2Frust-50-coding-challenges'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6bdfdc06448d953643d8720a6bf98f22409adfe9 [INFO] checking elroykanye/rust-50-coding-challenges against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felroykanye%2Frust-50-coding-challenges" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/elroykanye/rust-50-coding-challenges on toolchain 39e1293fce4b650061e85dda88aa428f726a8444 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/elroykanye/rust-50-coding-challenges [INFO] finished tweaking git repo https://github.com/elroykanye/rust-50-coding-challenges [INFO] tweaked toml for git repo https://github.com/elroykanye/rust-50-coding-challenges written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/elroykanye/rust-50-coding-challenges already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15055d9554086b8a00ee64d4be9008f4af29c1bad7e0e27f2c4abb6962cac1c7 [INFO] running `Command { std: "docker" "start" "-a" "15055d9554086b8a00ee64d4be9008f4af29c1bad7e0e27f2c4abb6962cac1c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15055d9554086b8a00ee64d4be9008f4af29c1bad7e0e27f2c4abb6962cac1c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15055d9554086b8a00ee64d4be9008f4af29c1bad7e0e27f2c4abb6962cac1c7", kill_on_drop: false }` [INFO] [stdout] 15055d9554086b8a00ee64d4be9008f4af29c1bad7e0e27f2c4abb6962cac1c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9889898c0e4ccec2eb5c1f39a5a7f3d04e3196d955cd5454007e14dcae0307fa [INFO] running `Command { std: "docker" "start" "-a" "9889898c0e4ccec2eb5c1f39a5a7f3d04e3196d955cd5454007e14dcae0307fa", kill_on_drop: false }` [INFO] [stderr] Checking rust-50-code-exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant [INFO] [stdout] --> src/part_one.rs:109:38 [INFO] [stdout] | [INFO] [stdout] 109 | const size: usize = count_array(&arr); [INFO] [stdout] | ---------- ^^^ non-constant value [INFO] [stdout] | | [INFO] [stdout] | help: consider using `let` instead of `const`: `let size` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant [INFO] [stdout] --> src/part_one.rs:121:33 [INFO] [stdout] | [INFO] [stdout] 112 | let mut i: usize = 0; [INFO] [stdout] | -------- help: consider using `const` instead of `let`: `const i` [INFO] [stdout] ... [INFO] [stdout] 121 | let mut final_result: [i32; i] = [0; i]; [INFO] [stdout] | ^ non-constant value [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant [INFO] [stdout] --> src/part_one.rs:121:42 [INFO] [stdout] | [INFO] [stdout] 112 | let mut i: usize = 0; [INFO] [stdout] | -------- help: consider using `const` instead of `let`: `const i` [INFO] [stdout] ... [INFO] [stdout] 121 | let mut final_result: [i32; i] = [0; i]; [INFO] [stdout] | ^ non-constant value [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant [INFO] [stdout] --> src/part_one.rs:109:38 [INFO] [stdout] | [INFO] [stdout] 109 | const size: usize = count_array(&arr); [INFO] [stdout] | ---------- ^^^ non-constant value [INFO] [stdout] | | [INFO] [stdout] | help: consider using `let` instead of `const`: `let size` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant [INFO] [stdout] --> src/part_one.rs:121:33 [INFO] [stdout] | [INFO] [stdout] 112 | let mut i: usize = 0; [INFO] [stdout] | -------- help: consider using `const` instead of `let`: `const i` [INFO] [stdout] ... [INFO] [stdout] 121 | let mut final_result: [i32; i] = [0; i]; [INFO] [stdout] | ^ non-constant value [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant [INFO] [stdout] --> src/part_one.rs:121:42 [INFO] [stdout] | [INFO] [stdout] 112 | let mut i: usize = 0; [INFO] [stdout] | -------- help: consider using `const` instead of `let`: `const i` [INFO] [stdout] ... [INFO] [stdout] 121 | let mut final_result: [i32; i] = [0; i]; [INFO] [stdout] | ^ non-constant value [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the size for values of type `[i32]` cannot be known at compilation time [INFO] [stdout] --> src/part_one.rs:106:24 [INFO] [stdout] | [INFO] [stdout] 106 | pub fn exercise_twelve(arr: [i32]) -> &'static [i32] { [INFO] [stdout] | ^^^ doesn't have a size known at compile-time [INFO] [stdout] | [INFO] [stdout] = help: the trait `Sized` is not implemented for `[i32]` [INFO] [stdout] = help: unsized fn params are gated as an unstable feature [INFO] [stdout] help: function arguments must have a statically known size, borrowed types always have a known size [INFO] [stdout] | [INFO] [stdout] 106 | pub fn exercise_twelve(arr: &[i32]) -> &'static [i32] { [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the size for values of type `[i32]` cannot be known at compilation time [INFO] [stdout] --> src/part_one.rs:106:24 [INFO] [stdout] | [INFO] [stdout] 106 | pub fn exercise_twelve(arr: [i32]) -> &'static [i32] { [INFO] [stdout] | ^^^ doesn't have a size known at compile-time [INFO] [stdout] | [INFO] [stdout] = help: the trait `Sized` is not implemented for `[i32]` [INFO] [stdout] = help: unsized fn params are gated as an unstable feature [INFO] [stdout] help: function arguments must have a statically known size, borrowed types always have a known size [INFO] [stdout] | [INFO] [stdout] 106 | pub fn exercise_twelve(arr: &[i32]) -> &'static [i32] { [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0435. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0435. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-50-code-exercises` due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "9889898c0e4ccec2eb5c1f39a5a7f3d04e3196d955cd5454007e14dcae0307fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9889898c0e4ccec2eb5c1f39a5a7f3d04e3196d955cd5454007e14dcae0307fa", kill_on_drop: false }` [INFO] [stdout] 9889898c0e4ccec2eb5c1f39a5a7f3d04e3196d955cd5454007e14dcae0307fa