[INFO] cloning repository https://github.com/ChikenduHillary/rust-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChikenduHillary/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChikenduHillary%2Frust-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChikenduHillary%2Frust-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e3914a3e4228e842519d3b482a8ff0b4d8595b07 [INFO] testing ChikenduHillary/rust-exercises against try#311784882baa42a9638298cb325fa01a062c9d0f+cargoflags=-Zbuild-dir-new-layout for pr-149852 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChikenduHillary%2Frust-exercises" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ChikenduHillary/rust-exercises [INFO] finished tweaking git repo https://github.com/ChikenduHillary/rust-exercises [INFO] tweaked toml for git repo https://github.com/ChikenduHillary/rust-exercises written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ChikenduHillary/rust-exercises on toolchain 311784882baa42a9638298cb325fa01a062c9d0f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ChikenduHillary/rust-exercises 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" "+311784882baa42a9638298cb325fa01a062c9d0f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3e86ff24ad15a8366fc4bc2051934f89b5f0636a8d39bfc62fb2c6e1664b7bb9 [INFO] running `Command { std: "docker" "start" "-a" "3e86ff24ad15a8366fc4bc2051934f89b5f0636a8d39bfc62fb2c6e1664b7bb9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e86ff24ad15a8366fc4bc2051934f89b5f0636a8d39bfc62fb2c6e1664b7bb9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e86ff24ad15a8366fc4bc2051934f89b5f0636a8d39bfc62fb2c6e1664b7bb9", kill_on_drop: false }` [INFO] [stdout] 3e86ff24ad15a8366fc4bc2051934f89b5f0636a8d39bfc62fb2c6e1664b7bb9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }` [INFO] [stdout] 81b579d87d68df763312ec120774b42e85d7935ce30fea942a1811595d8a532a [INFO] running `Command { std: "docker" "start" "-a" "81b579d87d68df763312ec120774b42e85d7935ce30fea942a1811595d8a532a", kill_on_drop: false }` [INFO] [stderr] Compiling hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0432]: unresolved import `crossbeam_channel` [INFO] [stdout] --> src/bin/a39.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | use crossbeam_channel::{unbounded, Receiver}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `crossbeam_channel` [INFO] [stdout] | [INFO] [stdout] = help: if you wanted to use a crate named `crossbeam_channel`, use `cargo add crossbeam_channel` to add it to your `Cargo.toml` [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)]` (part of `#[warn(unused)]`) 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] error[E0432]: unresolved import `crossbeam_channel` [INFO] [stdout] --> src/bin/a41.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | use crossbeam_channel::{unbounded, Receiver, Sender}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `crossbeam_channel` [INFO] [stdout] | [INFO] [stdout] = help: if you wanted to use a crate named `crossbeam_channel`, use `cargo add crossbeam_channel` to add it to your `Cargo.toml` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/bin/a39.rs:25:19 [INFO] [stdout] | [INFO] [stdout] 25 | use std::thread::{self, JoinHandle}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rgb` is never constructed [INFO] [stdout] --> src/bin/a37.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Rgb(u8, u8, u8); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/bin/a39.rs:38:56 [INFO] [stdout] | [INFO] [stdout] 38 | fn spawn_light_thread(receiver: Receiver) -> JoinHandle { [INFO] [stdout] | ------------------ ^^^^^^^^^^^^^^^^^^^^^^^ expected `JoinHandle`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected struct `JoinHandle` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0432. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/bin/a41.rs:64:21 [INFO] [stdout] | [INFO] [stdout] 64 | let rx_thread = rx.clone(); [INFO] [stdout] | ^^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `user_id` and `name` are never read [INFO] [stdout] --> src/bin/a21.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 13 | user_id: i32, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 14 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0282, E0432. [INFO] [stdout] [INFO] [stderr] error: could not compile `hello` (bin "a39") due to 2 previous errors; 1 warning emitted [INFO] [stdout] For more information about an error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: function `msg_hello` is never used [INFO] [stdout] --> src/bin/a38.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn msg_hello() -> &'static str { [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 `msg_thread` is never used [INFO] [stdout] --> src/bin/a38.rs:17:4 [INFO] [stdout] | [INFO] [stdout] 17 | fn msg_thread() -> &'static str { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `msg_excited` is never used [INFO] [stdout] --> src/bin/a38.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn msg_excited() -> &'static str { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Body` is never used [INFO] [stdout] --> src/bin/a30.rs:18:7 [INFO] [stdout] | [INFO] [stdout] 18 | trait Body {} [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Color` is never used [INFO] [stdout] --> src/bin/a30.rs:19:7 [INFO] [stdout] | [INFO] [stdout] 19 | trait Color {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `hello` (bin "a41") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "81b579d87d68df763312ec120774b42e85d7935ce30fea942a1811595d8a532a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81b579d87d68df763312ec120774b42e85d7935ce30fea942a1811595d8a532a", kill_on_drop: false }` [INFO] [stdout] 81b579d87d68df763312ec120774b42e85d7935ce30fea942a1811595d8a532a