[INFO] cloning repository https://github.com/OreAkintobi/rust-learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OreAkintobi/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOreAkintobi%2Frust-learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOreAkintobi%2Frust-learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7e916ff048f51d2a73e84fdf5b06ca01280dfab5 [INFO] checking OreAkintobi/rust-learning against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOreAkintobi%2Frust-learning" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/OreAkintobi/rust-learning on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/OreAkintobi/rust-learning [INFO] finished tweaking git repo https://github.com/OreAkintobi/rust-learning [INFO] tweaked toml for git repo https://github.com/OreAkintobi/rust-learning written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/OreAkintobi/rust-learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7c94af5052d13dd90f76d9a23ce14dc90b19dbbda04e0bcb2cc92fbdd7f83613 [INFO] running `Command { std: "docker" "start" "-a" "7c94af5052d13dd90f76d9a23ce14dc90b19dbbda04e0bcb2cc92fbdd7f83613", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c94af5052d13dd90f76d9a23ce14dc90b19dbbda04e0bcb2cc92fbdd7f83613", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c94af5052d13dd90f76d9a23ce14dc90b19dbbda04e0bcb2cc92fbdd7f83613", kill_on_drop: false }` [INFO] [stdout] 7c94af5052d13dd90f76d9a23ce14dc90b19dbbda04e0bcb2cc92fbdd7f83613 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c21dfc7da35254a035a10b21df8b08f9eb526fa5dc205e7764616c8e9a4eece [INFO] running `Command { std: "docker" "start" "-a" "8c21dfc7da35254a035a10b21df8b08f9eb526fa5dc205e7764616c8e9a4eece", kill_on_drop: false }` [INFO] [stderr] Checking activities v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `User` is never constructed [INFO] [stdout] --> src/bin/a21.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_user` is never used [INFO] [stdout] --> src/bin/a21.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn find_user(name: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `clamp` is never used [INFO] [stdout] --> src/bin/a22.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn clamp(n: i32, lower: i32, upper: i32) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `div` is never used [INFO] [stdout] --> src/bin/a22.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn div(a: i32, b: i32) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `concat` is never used [INFO] [stdout] --> src/bin/a22.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn concat(first: &str, second: &str) -> String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Color` is never used [INFO] [stdout] --> src/bin/a28.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | enum Color { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/bin/a23.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 11 | fn part_1() -> bool { [INFO] [stdout] | ---- expected `bool` because of return type [INFO] [stdout] ... [INFO] [stdout] 16 | maybe_access("admin") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Option` [INFO] [stdout] | [INFO] [stdout] = note: expected type `bool` [INFO] [stdout] found enum `Option` [INFO] [stdout] help: use `Option::is_some` to test if the `Option` has a value [INFO] [stdout] | [INFO] [stdout] 16 | maybe_access("admin").is_some() [INFO] [stdout] | ++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/bin/a23.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 26 | fn part_3() -> Access { [INFO] [stdout] | ------ expected `Access` because of return type [INFO] [stdout] ... [INFO] [stdout] 29 | maybe_access("Alice") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ expected `Access`, found `Option` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Access` [INFO] [stdout] found enum `Option` [INFO] [stdout] help: consider using `Option::expect` to unwrap the `Option` value, panicking if the value is an `Option::None` [INFO] [stdout] | [INFO] [stdout] 29 | maybe_access("Alice").expect("REASON") [INFO] [stdout] | +++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `activities` (bin "a23" test) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "8c21dfc7da35254a035a10b21df8b08f9eb526fa5dc205e7764616c8e9a4eece", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c21dfc7da35254a035a10b21df8b08f9eb526fa5dc205e7764616c8e9a4eece", kill_on_drop: false }` [INFO] [stdout] 8c21dfc7da35254a035a10b21df8b08f9eb526fa5dc205e7764616c8e9a4eece