[INFO] cloning repository https://github.com/DeusFerrariis/rust-patterns [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DeusFerrariis/rust-patterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeusFerrariis%2Frust-patterns", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeusFerrariis%2Frust-patterns'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7d8b0239631461ae61a79e92d5b0233fb7dbfab2 [INFO] testing DeusFerrariis/rust-patterns against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeusFerrariis%2Frust-patterns" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DeusFerrariis/rust-patterns on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/DeusFerrariis/rust-patterns [INFO] finished tweaking git repo https://github.com/DeusFerrariis/rust-patterns [INFO] tweaked toml for git repo https://github.com/DeusFerrariis/rust-patterns written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/DeusFerrariis/rust-patterns already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 76c89114de770b9b54657b2b854cad7584e594db76f5f3e8e434f6f42f6e96c0 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "76c89114de770b9b54657b2b854cad7584e594db76f5f3e8e434f6f42f6e96c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "76c89114de770b9b54657b2b854cad7584e594db76f5f3e8e434f6f42f6e96c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76c89114de770b9b54657b2b854cad7584e594db76f5f3e8e434f6f42f6e96c0", kill_on_drop: false }` [INFO] [stdout] 76c89114de770b9b54657b2b854cad7584e594db76f5f3e8e434f6f42f6e96c0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ee3e19e360ffcdd4d8f896eaa29512ca5a0371c32a8b2da626f5f91c62e8ba2d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ee3e19e360ffcdd4d8f896eaa29512ca5a0371c32a8b2da626f5f91c62e8ba2d", kill_on_drop: false }` [INFO] [stderr] Compiling rust-patterns v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `V4` [INFO] [stdout] --> src/singleton.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | V4, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> src/singleton.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | V6, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Singleton` [INFO] [stdout] --> src/singleton.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct Singleton { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `take_instance` [INFO] [stdout] --> src/singleton.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | fn take_instance(&mut self) -> IpAddr { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static is never used: `SINGLETON` [INFO] [stdout] --> src/singleton.rs:21:1 [INFO] [stdout] | [INFO] [stdout] 21 | / static mut SINGLETON: Singleton = Singleton { [INFO] [stdout] 22 | | field: Some(IpAddr::V4), [INFO] [stdout] 23 | | }; [INFO] [stdout] | |__^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.52s [INFO] running `Command { std: "docker" "inspect" "ee3e19e360ffcdd4d8f896eaa29512ca5a0371c32a8b2da626f5f91c62e8ba2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee3e19e360ffcdd4d8f896eaa29512ca5a0371c32a8b2da626f5f91c62e8ba2d", kill_on_drop: false }` [INFO] [stdout] ee3e19e360ffcdd4d8f896eaa29512ca5a0371c32a8b2da626f5f91c62e8ba2d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6b60471570a29840ee193887d81471ccf66239aa95889b6f31ec42006506fa32 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6b60471570a29840ee193887d81471ccf66239aa95889b6f31ec42006506fa32", kill_on_drop: false }` [INFO] [stderr] Compiling rust-patterns v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `singleton_num2` [INFO] [stdout] --> src/singleton.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let singleton_num2 = unsafe { SINGLETON.take_instance() }; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_singleton_num2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `V6` [INFO] [stdout] --> src/singleton.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | V6, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.69s [INFO] running `Command { std: "docker" "inspect" "6b60471570a29840ee193887d81471ccf66239aa95889b6f31ec42006506fa32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b60471570a29840ee193887d81471ccf66239aa95889b6f31ec42006506fa32", kill_on_drop: false }` [INFO] [stdout] 6b60471570a29840ee193887d81471ccf66239aa95889b6f31ec42006506fa32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6dd03a318223014a66a3767a93d45e30c9c0c73e2d07a17063e6bc4c68fd61b4 [INFO] running `Command { std: "docker" "start" "-a" "6dd03a318223014a66a3767a93d45e30c9c0c73e2d07a17063e6bc4c68fd61b4", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `singleton_num2` [INFO] [stderr] --> src/singleton.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | let singleton_num2 = unsafe { SINGLETON.take_instance() }; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_singleton_num2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `V6` [INFO] [stderr] --> src/singleton.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | V6, [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_patterns-6388d5ac2ff9205f) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test singleton::tests::example ... ok [INFO] [stdout] test singleton::tests::request_taken_singleton ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "6dd03a318223014a66a3767a93d45e30c9c0c73e2d07a17063e6bc4c68fd61b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dd03a318223014a66a3767a93d45e30c9c0c73e2d07a17063e6bc4c68fd61b4", kill_on_drop: false }` [INFO] [stdout] 6dd03a318223014a66a3767a93d45e30c9c0c73e2d07a17063e6bc4c68fd61b4