[INFO] cloning repository https://github.com/shanemikel/rust-hello [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shanemikel/rust-hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshanemikel%2Frust-hello", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshanemikel%2Frust-hello'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d473b3db08dbfe0ed83f428a13e337b242c04ce5 [INFO] testing shanemikel/rust-hello against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshanemikel%2Frust-hello" "/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/shanemikel/rust-hello on toolchain b70888601af92f6cdc0364abab3446e418b91d36 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shanemikel/rust-hello [INFO] finished tweaking git repo https://github.com/shanemikel/rust-hello [INFO] tweaked toml for git repo https://github.com/shanemikel/rust-hello written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/shanemikel/rust-hello already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 26f103f304a07439d45de74077a2376a75113268cd5cd41e4d2eb8be1a90e3a7 [INFO] running `Command { std: "docker" "start" "-a" "26f103f304a07439d45de74077a2376a75113268cd5cd41e4d2eb8be1a90e3a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "26f103f304a07439d45de74077a2376a75113268cd5cd41e4d2eb8be1a90e3a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26f103f304a07439d45de74077a2376a75113268cd5cd41e4d2eb8be1a90e3a7", kill_on_drop: false }` [INFO] [stdout] 26f103f304a07439d45de74077a2376a75113268cd5cd41e4d2eb8be1a90e3a7 [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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aa10f0869eff180ee529ea813cc89d738810c060624c7db563e38de1be7ed60f [INFO] running `Command { std: "docker" "start" "-a" "aa10f0869eff180ee529ea813cc89d738810c060624c7db563e38de1be7ed60f", kill_on_drop: false }` [INFO] [stderr] Compiling rust-hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Mutex` [INFO] [stdout] --> src/main.rs:9:26 [INFO] [stdout] | [INFO] [stdout] 9 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/main.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 25 | let data = data.read().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Cons` [INFO] [stdout] --> src/list.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | Cons(T, Box>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nil` [INFO] [stdout] --> src/list.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/list.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn new() -> List { List::Nil } [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `cons` [INFO] [stdout] --> src/list.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn cons(self, x: T) -> List { List::Cons(x, Box::new(self)) } [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `head` [INFO] [stdout] --> src/list.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn head(self) -> Option { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tail` [INFO] [stdout] --> src/list.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn tail(&self) -> Option<&List> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `head_ref` [INFO] [stdout] --> src/list.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn head_ref(&self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `N` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | const N: usize = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_list` [INFO] [stdout] --> src/main.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn test_list() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.89s [INFO] running `Command { std: "docker" "inspect" "aa10f0869eff180ee529ea813cc89d738810c060624c7db563e38de1be7ed60f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa10f0869eff180ee529ea813cc89d738810c060624c7db563e38de1be7ed60f", kill_on_drop: false }` [INFO] [stdout] aa10f0869eff180ee529ea813cc89d738810c060624c7db563e38de1be7ed60f [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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8f07914729668cf2931b45f720b76cba7d79646cb5a0a00fca5d4bd5f371a0ea [INFO] running `Command { std: "docker" "start" "-a" "8f07914729668cf2931b45f720b76cba7d79646cb5a0a00fca5d4bd5f371a0ea", kill_on_drop: false }` [INFO] [stderr] Compiling rust-hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Mutex` [INFO] [stdout] --> src/main.rs:9:26 [INFO] [stdout] | [INFO] [stdout] 9 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/main.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 25 | let data = data.read().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Cons` [INFO] [stdout] --> src/list.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | Cons(T, Box>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nil` [INFO] [stdout] --> src/list.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/list.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn new() -> List { List::Nil } [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `cons` [INFO] [stdout] --> src/list.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn cons(self, x: T) -> List { List::Cons(x, Box::new(self)) } [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `head` [INFO] [stdout] --> src/list.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn head(self) -> Option { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tail` [INFO] [stdout] --> src/list.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn tail(&self) -> Option<&List> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `head_ref` [INFO] [stdout] --> src/list.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn head_ref(&self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `N` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | const N: usize = 10; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_list` [INFO] [stdout] --> src/main.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn test_list() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `Command { std: "docker" "inspect" "8f07914729668cf2931b45f720b76cba7d79646cb5a0a00fca5d4bd5f371a0ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f07914729668cf2931b45f720b76cba7d79646cb5a0a00fca5d4bd5f371a0ea", kill_on_drop: false }` [INFO] [stdout] 8f07914729668cf2931b45f720b76cba7d79646cb5a0a00fca5d4bd5f371a0ea [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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d056b9367ad5db12786d1a08293a53637885e58eee68e18722f1887562764704 [INFO] running `Command { std: "docker" "start" "-a" "d056b9367ad5db12786d1a08293a53637885e58eee68e18722f1887562764704", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/main.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Mutex` [INFO] [stderr] --> src/main.rs:9:26 [INFO] [stderr] | [INFO] [stderr] 9 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/main.rs:25:17 [INFO] [stderr] | [INFO] [stderr] 25 | let data = data.read().unwrap(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cons` [INFO] [stderr] --> src/list.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | Cons(T, Box>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nil` [INFO] [stderr] --> src/list.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | Nil, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/list.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn new() -> List { List::Nil } [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `cons` [INFO] [stderr] --> src/list.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn cons(self, x: T) -> List { List::Cons(x, Box::new(self)) } [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `head` [INFO] [stderr] --> src/list.rs:13:12 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn head(self) -> Option { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `tail` [INFO] [stderr] --> src/list.rs:20:12 [INFO] [stderr] | [INFO] [stderr] 20 | pub fn tail(&self) -> Option<&List> { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `head_ref` [INFO] [stderr] --> src/list.rs:29:12 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn head_ref(&self) -> Option { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `N` [INFO] [stderr] --> src/main.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | const N: usize = 10; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_list` [INFO] [stderr] --> src/main.rs:39:4 [INFO] [stderr] | [INFO] [stderr] 39 | fn test_list() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rust-hello` (bin "rust-hello" test) generated 12 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_hello-bfcb6041934b8637) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d056b9367ad5db12786d1a08293a53637885e58eee68e18722f1887562764704", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d056b9367ad5db12786d1a08293a53637885e58eee68e18722f1887562764704", kill_on_drop: false }` [INFO] [stdout] d056b9367ad5db12786d1a08293a53637885e58eee68e18722f1887562764704