[INFO] cloning repository https://github.com/simba126/rust-tutorial [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simba126/rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimba126%2Frust-tutorial", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimba126%2Frust-tutorial'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 19e23772c0e0051cb741d19c7048bc3471338499 [INFO] checking simba126/rust-tutorial against try#15e8bc6907ab2b3623cb52acc726f4787458df64 for pr-141352 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimba126%2Frust-tutorial" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/simba126/rust-tutorial on toolchain 15e8bc6907ab2b3623cb52acc726f4787458df64 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/simba126/rust-tutorial [INFO] finished tweaking git repo https://github.com/simba126/rust-tutorial [INFO] tweaked toml for git repo https://github.com/simba126/rust-tutorial written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/simba126/rust-tutorial 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" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "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 arr_macro v0.1.3 [INFO] [stderr] Downloaded arr_macro_impl v0.1.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 404263b8e07c41335cf662d9a33a2a70f7e1ed05acfe1bc49e7517918afab4fa [INFO] running `Command { std: "docker" "start" "-a" "404263b8e07c41335cf662d9a33a2a70f7e1ed05acfe1bc49e7517918afab4fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "404263b8e07c41335cf662d9a33a2a70f7e1ed05acfe1bc49e7517918afab4fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "404263b8e07c41335cf662d9a33a2a70f7e1ed05acfe1bc49e7517918afab4fa", kill_on_drop: false }` [INFO] [stdout] 404263b8e07c41335cf662d9a33a2a70f7e1ed05acfe1bc49e7517918afab4fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 956cd82d37ad82cbf0a53fba30666ed87bf4a713e4ade0dd978dc4a72b7c457d [INFO] running `Command { std: "docker" "start" "-a" "956cd82d37ad82cbf0a53fba30666ed87bf4a713e4ade0dd978dc4a72b7c457d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Compiling borsh-derive-internal v0.9.1 [INFO] [stderr] Compiling borsh-schema-derive-internal v0.9.1 [INFO] [stderr] Compiling arr_macro_impl v0.1.3 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling borsh-derive v0.9.1 [INFO] [stderr] Checking arr_macro v0.1.3 [INFO] [stderr] Checking borsh v0.9.1 [INFO] [stderr] Checking example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let x: u32 = 0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> examples/closures.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let res = f(10); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let x: u32 = 0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> examples/mod.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 52 | / match somefn() { [INFO] [stdout] 53 | | [INFO] [stdout] 54 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 55 | [INFO] [stdout] 56 | println!() [INFO] [stdout] | ^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `$crate::print` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> examples/struct.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let y = x.to_string(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `set_first_name` is never used [INFO] [stdout] --> examples/struct.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 15 | impl Person { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 30 | fn set_first_name(&mut self, first: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0004]: non-exhaustive patterns: `None` and `Some(_)` not covered [INFO] [stdout] --> examples/mod.rs:52:11 [INFO] [stdout] | [INFO] [stdout] 52 | match somefn() { [INFO] [stdout] | ^^^^^^^^ patterns `None` and `Some(_)` not covered [INFO] [stdout] | [INFO] [stdout] note: `Option` defined here [INFO] [stdout] --> /rustc/15e8bc6907ab2b3623cb52acc726f4787458df64/library/core/src/option.rs:589:1 [INFO] [stdout] ::: /rustc/15e8bc6907ab2b3623cb52acc726f4787458df64/library/core/src/option.rs:593:5 [INFO] [stdout] | [INFO] [stdout] = note: not covered [INFO] [stdout] ::: /rustc/15e8bc6907ab2b3623cb52acc726f4787458df64/library/core/src/option.rs:597:5 [INFO] [stdout] | [INFO] [stdout] = note: not covered [INFO] [stdout] = note: the matched value is of type `Option` [INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms [INFO] [stdout] | [INFO] [stdout] 53 | match somefn() { [INFO] [stdout] 54 + None | Some(_) => todo!(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0004`. [INFO] [stdout] [INFO] [stderr] error: could not compile `example` (example "mod") due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> examples/iterator.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 36 | struct Foo { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 37 | name: String [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "956cd82d37ad82cbf0a53fba30666ed87bf4a713e4ade0dd978dc4a72b7c457d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "956cd82d37ad82cbf0a53fba30666ed87bf4a713e4ade0dd978dc4a72b7c457d", kill_on_drop: false }` [INFO] [stdout] 956cd82d37ad82cbf0a53fba30666ed87bf4a713e4ade0dd978dc4a72b7c457d