[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] testing cgpathos/rust_playground against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgpathos%2Frust_playground" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cgpathos/rust_playground on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-14/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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7c81ec092fa0c61d47026fc1a4bb47ec3bed05812ef76ac6dd5ad05f98712259 [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" "7c81ec092fa0c61d47026fc1a4bb47ec3bed05812ef76ac6dd5ad05f98712259", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c81ec092fa0c61d47026fc1a4bb47ec3bed05812ef76ac6dd5ad05f98712259", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c81ec092fa0c61d47026fc1a4bb47ec3bed05812ef76ac6dd5ad05f98712259", kill_on_drop: false }` [INFO] [stdout] 7c81ec092fa0c61d47026fc1a4bb47ec3bed05812ef76ac6dd5ad05f98712259 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--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] e84dfc0964627afe5eb44716dffa0074acb3aa397291ba28e01e6037a70f3370 [INFO] running `Command { std: "docker" "start" "-a" "e84dfc0964627afe5eb44716dffa0074acb3aa397291ba28e01e6037a70f3370", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.84 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling rand_core v0.6.1 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling 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: 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 7.38s [INFO] running `Command { std: "docker" "inspect" "e84dfc0964627afe5eb44716dffa0074acb3aa397291ba28e01e6037a70f3370", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e84dfc0964627afe5eb44716dffa0074acb3aa397291ba28e01e6037a70f3370", kill_on_drop: false }` [INFO] [stdout] e84dfc0964627afe5eb44716dffa0074acb3aa397291ba28e01e6037a70f3370 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5c0c537bb877e683914464789d645bb0553a0fca6688b285dbff62f19c76b917 [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" "5c0c537bb877e683914464789d645bb0553a0fca6688b285dbff62f19c76b917", kill_on_drop: false }` [INFO] [stderr] Compiling 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: 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: 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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.23s [INFO] running `Command { std: "docker" "inspect" "5c0c537bb877e683914464789d645bb0553a0fca6688b285dbff62f19c76b917", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c0c537bb877e683914464789d645bb0553a0fca6688b285dbff62f19c76b917", kill_on_drop: false }` [INFO] [stdout] 5c0c537bb877e683914464789d645bb0553a0fca6688b285dbff62f19c76b917 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] bf6e575b8cedc0acd262e17b98bdfbd4ff7f4fe5dbb626e4751306bd465867d2 [INFO] running `Command { std: "docker" "start" "-a" "bf6e575b8cedc0acd262e17b98bdfbd4ff7f4fe5dbb626e4751306bd465867d2", kill_on_drop: false }` [INFO] [stderr] warning: function is never used: `middle_function` [INFO] [stderr] --> src/lib.rs:6:12 [INFO] [stderr] | [INFO] [stderr] 6 | pub fn middle_function() {} [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `middle_secret_function` [INFO] [stderr] --> src/lib.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | fn middle_secret_function() {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `inner_function` [INFO] [stderr] --> src/lib.rs:11:16 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn inner_function() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `secret_function` [INFO] [stderr] --> src/lib.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | fn secret_function() {} [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `try_me` [INFO] [stderr] --> src/lib.rs:20:4 [INFO] [stderr] | [INFO] [stderr] 20 | fn try_me() { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `playground` (lib) generated 5 warnings [INFO] [stderr] warning: `playground` (lib test) generated 5 warnings (5 duplicates) [INFO] [stderr] warning: unused variable: `red` [INFO] [stderr] --> src/main.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let red = Red; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_red` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `yellow` [INFO] [stderr] --> src/main.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let yellow = Yellow; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_yellow` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `green` [INFO] [stderr] --> src/main.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | let green = Green; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_green` [INFO] [stderr] [INFO] [stderr] warning: `playground` (bin "playground" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/playground-53d6f62e88b95650) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::it_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/playground-dffb487ef0e70f1f) [INFO] [stdout] [INFO] [stderr] Doc-tests playground [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] [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" "bf6e575b8cedc0acd262e17b98bdfbd4ff7f4fe5dbb626e4751306bd465867d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf6e575b8cedc0acd262e17b98bdfbd4ff7f4fe5dbb626e4751306bd465867d2", kill_on_drop: false }` [INFO] [stdout] bf6e575b8cedc0acd262e17b98bdfbd4ff7f4fe5dbb626e4751306bd465867d2