[INFO] cloning repository https://github.com/shunak/rust-train [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shunak/rust-train" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunak%2Frust-train", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunak%2Frust-train'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ea02c8c681a837928ed0f66761c083ffa823cb78 [INFO] checking shunak/rust-train against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunak%2Frust-train" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shunak/rust-train on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shunak/rust-train [INFO] finished tweaking git repo https://github.com/shunak/rust-train [INFO] tweaked toml for git repo https://github.com/shunak/rust-train written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/shunak/rust-train already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5661b4f04d1c4a618592ec337258e051112c920443394d4c5972cf9016faad51 [INFO] running `Command { std: "docker" "start" "-a" "5661b4f04d1c4a618592ec337258e051112c920443394d4c5972cf9016faad51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5661b4f04d1c4a618592ec337258e051112c920443394d4c5972cf9016faad51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5661b4f04d1c4a618592ec337258e051112c920443394d4c5972cf9016faad51", kill_on_drop: false }` [INFO] [stdout] 5661b4f04d1c4a618592ec337258e051112c920443394d4c5972cf9016faad51 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e495ecfc542ffd279f4df31f35bdc2edc96eddadb84bcf8a94e5f45ad8966fa8 [INFO] running `Command { std: "docker" "start" "-a" "e495ecfc542ffd279f4df31f35bdc2edc96eddadb84bcf8a94e5f45ad8966fa8", kill_on_drop: false }` [INFO] [stderr] Checking rust-train v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct is never constructed: `Pair` [INFO] [stdout] --> src/lib.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 57 | struct Pair{ [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/lib.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `cmp_display` [INFO] [stdout] --> src/lib.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Pair` [INFO] [stdout] --> src/lib.rs:57:8 [INFO] [stdout] | [INFO] [stdout] 57 | struct Pair{ [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/lib.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `cmp_display` [INFO] [stdout] --> src/lib.rs:69:8 [INFO] [stdout] | [INFO] [stdout] 69 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | let s: &'static str = "I have a static lifetime."; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/main.rs:303:9 [INFO] [stdout] | [INFO] [stdout] 303 | let f = match f { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:327:9 [INFO] [stdout] | [INFO] [stdout] 327 | let v = vec![1,2,3]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:383:13 [INFO] [stdout] | [INFO] [stdout] 383 | let mut s = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:420:9 [INFO] [stdout] | [INFO] [stdout] 420 | let v: Vec = Vec::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `third` [INFO] [stdout] --> src/main.rs:431:9 [INFO] [stdout] | [INFO] [stdout] 431 | let third: Option<&i32> = v.get(2); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_third` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:480:9 [INFO] [stdout] | [INFO] [stdout] 480 | let s = 5; // Declara variable [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/main.rs:485:13 [INFO] [stdout] | [INFO] [stdout] 485 | let k = 7; // Scope test. This variable is valid in this parenthes. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/main.rs:621:17 [INFO] [stdout] | [INFO] [stdout] 621 | let mut count =0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/main.rs:632:13 [INFO] [stdout] | [INFO] [stdout] 632 | count += 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | let s: &'static str = "I have a static lifetime."; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/main.rs:303:9 [INFO] [stdout] | [INFO] [stdout] 303 | let f = match f { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:327:9 [INFO] [stdout] | [INFO] [stdout] 327 | let v = vec![1,2,3]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:383:13 [INFO] [stdout] | [INFO] [stdout] 383 | let mut s = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:420:9 [INFO] [stdout] | [INFO] [stdout] 420 | let v: Vec = Vec::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `third` [INFO] [stdout] --> src/main.rs:431:9 [INFO] [stdout] | [INFO] [stdout] 431 | let third: Option<&i32> = v.get(2); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_third` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:480:9 [INFO] [stdout] | [INFO] [stdout] 480 | let s = 5; // Declara variable [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/main.rs:485:13 [INFO] [stdout] | [INFO] [stdout] 485 | let k = 7; // Scope test. This variable is valid in this parenthes. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> src/main.rs:621:17 [INFO] [stdout] | [INFO] [stdout] 621 | let mut count =0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/main.rs:632:13 [INFO] [stdout] | [INFO] [stdout] 632 | count += 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:383:9 [INFO] [stdout] | [INFO] [stdout] 383 | let mut s = String::new(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:522:9 [INFO] [stdout] | [INFO] [stdout] 522 | let mut s4 = String::from("Hello world!"); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0382]: borrow of moved value: `x` [INFO] [stdout] --> src/main.rs:141:39 [INFO] [stdout] | [INFO] [stdout] 137 | let x = vec![1,2,3]; [INFO] [stdout] | - move occurs because `x` has type `Vec`, which does not implement the `Copy` trait [INFO] [stdout] 138 | [INFO] [stdout] 139 | let equal_to_x = move |z| z == x; [INFO] [stdout] | -------- - variable moved due to use in closure [INFO] [stdout] | | [INFO] [stdout] | value moved into closure here [INFO] [stdout] 140 | [INFO] [stdout] 141 | println!("can't use x here: {:?}",x); [INFO] [stdout] | ^ value borrowed here after move [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0382`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-train` due to 2 previous errors; 12 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:383:9 [INFO] [stdout] | [INFO] [stdout] 383 | let mut s = String::new(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:522:9 [INFO] [stdout] | [INFO] [stdout] 522 | let mut s4 = String::from("Hello world!"); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0382]: borrow of moved value: `x` [INFO] [stdout] --> src/main.rs:141:39 [INFO] [stdout] | [INFO] [stdout] 137 | let x = vec![1,2,3]; [INFO] [stdout] | - move occurs because `x` has type `Vec`, which does not implement the `Copy` trait [INFO] [stdout] 138 | [INFO] [stdout] 139 | let equal_to_x = move |z| z == x; [INFO] [stdout] | -------- - variable moved due to use in closure [INFO] [stdout] | | [INFO] [stdout] | value moved into closure here [INFO] [stdout] 140 | [INFO] [stdout] 141 | println!("can't use x here: {:?}",x); [INFO] [stdout] | ^ value borrowed here after move [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0382`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "e495ecfc542ffd279f4df31f35bdc2edc96eddadb84bcf8a94e5f45ad8966fa8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e495ecfc542ffd279f4df31f35bdc2edc96eddadb84bcf8a94e5f45ad8966fa8", kill_on_drop: false }` [INFO] [stdout] e495ecfc542ffd279f4df31f35bdc2edc96eddadb84bcf8a94e5f45ad8966fa8