[INFO] cloning repository https://github.com/gyng/rust-primer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gyng/rust-primer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyng%2Frust-primer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyng%2Frust-primer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d70706e2613e5b0c9f728e3da633da21013b9fc7 [INFO] checking gyng/rust-primer against try#342ed2e8608ee307743c341962b427652cdb06e9 for pr-146562 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyng%2Frust-primer" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/gyng/rust-primer [INFO] finished tweaking git repo https://github.com/gyng/rust-primer [INFO] tweaked toml for git repo https://github.com/gyng/rust-primer written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/gyng/rust-primer on toolchain 342ed2e8608ee307743c341962b427652cdb06e9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/gyng/rust-primer 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" "+342ed2e8608ee307743c341962b427652cdb06e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded os_str_bytes v2.4.0 [INFO] [stderr] Downloaded ipnet v2.7.0 [INFO] [stderr] Downloaded openssl-sys v0.9.80 [INFO] [stderr] Downloaded openssl v0.10.45 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] af9ffe4a20c28e690e9c7b3a8e056942f973dabae9698bc777eedb263f622249 [INFO] running `Command { std: "docker" "start" "-a" "af9ffe4a20c28e690e9c7b3a8e056942f973dabae9698bc777eedb263f622249", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "af9ffe4a20c28e690e9c7b3a8e056942f973dabae9698bc777eedb263f622249", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af9ffe4a20c28e690e9c7b3a8e056942f973dabae9698bc777eedb263f622249", kill_on_drop: false }` [INFO] [stdout] af9ffe4a20c28e690e9c7b3a8e056942f973dabae9698bc777eedb263f622249 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+342ed2e8608ee307743c341962b427652cdb06e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ef1a6537a8e56989d88fb2b215c6bed659a5e8e15417a4fa8320aca2cad8a4c5 [INFO] running `Command { std: "docker" "start" "-a" "ef1a6537a8e56989d88fb2b215c6bed659a5e8e15417a4fa8320aca2cad8a4c5", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.67 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling cc v1.0.78 [INFO] [stderr] Compiling parking_lot_core v0.9.5 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling tokio v1.23.0 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling futures-task v0.3.25 [INFO] [stderr] Compiling openssl v0.10.45 [INFO] [stderr] Compiling futures-util v0.3.25 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking http v0.2.8 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling futures-channel v0.3.25 [INFO] [stderr] Checking form_urlencoded v1.1.0 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking ipnet v2.7.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking demo v0.1.0 (/opt/rustwide/workdir/02-basics/demo) [INFO] [stderr] Checking exercise-match v0.1.0 (/opt/rustwide/workdir/05-match-result/exercise) [INFO] [stderr] Checking solution2 v0.1.0 (/opt/rustwide/workdir/02-basics/solution) [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> 02-basics/solution/src/main.rs:4:13 [INFO] [stdout] | [INFO] [stdout] 4 | let mut x = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mutability` is never used [INFO] [stdout] --> 02-basics/solution/src/main.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn mutability() -> u8 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `casting` is never used [INFO] [stdout] --> 02-basics/solution/src/main.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn casting() -> f64 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `collections` is never used [INFO] [stdout] --> 02-basics/solution/src/main.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn collections() -> u8 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking exercise-hello v0.1.0 (/opt/rustwide/workdir/01-hello/exercise) [INFO] [stderr] Checking demo-match v0.1.0 (/opt/rustwide/workdir/05-match-result/demo) [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:20:42 [INFO] [stdout] | [INFO] [stdout] 20 | assert_eq!(parse_value("bunny"), Some(Sculpture::Bunny)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ expected `Sculpture`, found `Option` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Sculpture` [INFO] [stdout] found enum `Option` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:21:43 [INFO] [stdout] | [INFO] [stdout] 21 | assert_eq!(parse_value("teapot"), Some(Sculpture::Teapot)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ expected `Sculpture`, found `Option` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Sculpture` [INFO] [stdout] found enum `Option` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:22:41 [INFO] [stdout] | [INFO] [stdout] 22 | assert_eq!(parse_value("taco"), None); [INFO] [stdout] | ^^^^ expected `Sculpture`, found `Option<_>` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Sculpture` [INFO] [stdout] found enum `Option<_>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:29:27 [INFO] [stdout] | [INFO] [stdout] 29 | assert_eq!(value, "value"); [INFO] [stdout] | ^^^^^^^ expected `Option<&str>`, found `&str` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Option<&str>` [INFO] [stdout] found reference `&str` [INFO] [stdout] help: try wrapping the expression in `Some` [INFO] [stdout] | [INFO] [stdout] 29 | assert_eq!(value, Some("value")); [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stdout] warning: unused variable: `input` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | fn parse_value(input: &str) -> Sculpture { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_input` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] Checking solution v0.1.0 (/opt/rustwide/workdir/01-hello/solution) [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] error: could not compile `exercise-match` (bin "exercise-match" test) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> 02-basics/solution/src/main.rs:4:13 [INFO] [stdout] | [INFO] [stdout] 4 | let mut x = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> 05-match-result/demo/src/main.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> 05-match-result/demo/src/main.rs:102:8 [INFO] [stdout] | [INFO] [stdout] 102 | if let x = Some(wrapper) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> 05-match-result/demo/src/main.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 2 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 3 | x: f64, [INFO] [stdout] | ^ [INFO] [stdout] 4 | y: f64, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `LineTo`, `LineBetween`, and `Clear` are never constructed [INFO] [stdout] --> 05-match-result/demo/src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 9 | enum DrawCommand { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 14 | LineTo { x: f64, y: f64 }, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 15 | LineBetween((Point, Point)), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 16 | Clear, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ef1a6537a8e56989d88fb2b215c6bed659a5e8e15417a4fa8320aca2cad8a4c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef1a6537a8e56989d88fb2b215c6bed659a5e8e15417a4fa8320aca2cad8a4c5", kill_on_drop: false }` [INFO] [stdout] ef1a6537a8e56989d88fb2b215c6bed659a5e8e15417a4fa8320aca2cad8a4c5