[INFO] cloning repository https://github.com/cgpathos/rust_playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cgpathos/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgpathos%2Frust_playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgpathos%2Frust_playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 23aa65b7f492c993a8fbb9990357e2470f14f8a3 [INFO] checking cgpathos/rust_playground against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgpathos%2Frust_playground" "/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/cgpathos/rust_playground on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cgpathos/rust_playground [INFO] finished tweaking git repo https://github.com/cgpathos/rust_playground [INFO] tweaked toml for git repo https://github.com/cgpathos/rust_playground written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/cgpathos/rust_playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--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-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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a34b90406419dd31bca1e4debd56eaed1b8a00acbecfd92889ba6ca7db13ecb8 [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" "a34b90406419dd31bca1e4debd56eaed1b8a00acbecfd92889ba6ca7db13ecb8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a34b90406419dd31bca1e4debd56eaed1b8a00acbecfd92889ba6ca7db13ecb8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a34b90406419dd31bca1e4debd56eaed1b8a00acbecfd92889ba6ca7db13ecb8", kill_on_drop: false }` [INFO] [stdout] a34b90406419dd31bca1e4debd56eaed1b8a00acbecfd92889ba6ca7db13ecb8 [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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 6389de4c98a313c96ce734f83d44e392944de4505dee6588d4c37e7011661509 [INFO] running `Command { std: "docker" "start" "-a" "6389de4c98a313c96ce734f83d44e392944de4505dee6588d4c37e7011661509", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.84 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking rand_core v0.6.1 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `middle_function` [INFO] [stdout] --> src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn middle_function() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `middle_secret_function` [INFO] [stdout] --> src/lib.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | fn middle_secret_function() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `inner_function` [INFO] [stdout] --> src/lib.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn inner_function() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `secret_function` [INFO] [stdout] --> src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | fn secret_function() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `try_me` [INFO] [stdout] --> src/lib.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn try_me() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `middle_function` [INFO] [stdout] --> src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn middle_function() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `middle_secret_function` [INFO] [stdout] --> src/lib.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | fn middle_secret_function() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `inner_function` [INFO] [stdout] --> src/lib.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn inner_function() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `secret_function` [INFO] [stdout] --> src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | fn secret_function() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `try_me` [INFO] [stdout] --> src/lib.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn try_me() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `red` [INFO] [stdout] --> src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let red = Red; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_red` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `yellow` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let yellow = Yellow; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_yellow` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `green` [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let green = Green; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_green` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `red` [INFO] [stdout] --> src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let red = Red; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_red` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `yellow` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let yellow = Yellow; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_yellow` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `green` [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let green = Green; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_green` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.11s [INFO] running `Command { std: "docker" "inspect" "6389de4c98a313c96ce734f83d44e392944de4505dee6588d4c37e7011661509", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6389de4c98a313c96ce734f83d44e392944de4505dee6588d4c37e7011661509", kill_on_drop: false }` [INFO] [stdout] 6389de4c98a313c96ce734f83d44e392944de4505dee6588d4c37e7011661509