[INFO] cloning repository https://github.com/g-jackson/rust-learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/g-jackson/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-jackson%2Frust-learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-jackson%2Frust-learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ba0bbe2ec318edecdb1f4fa0deda9db384576f8d [INFO] testing g-jackson/rust-learning against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-jackson%2Frust-learning" "/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/g-jackson/rust-learning on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/g-jackson/rust-learning [INFO] finished tweaking git repo https://github.com/g-jackson/rust-learning [INFO] tweaked toml for git repo https://github.com/g-jackson/rust-learning written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/g-jackson/rust-learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d32f7b3634965b5ef394652169b35ebe7224e028be91b085e45d17ea49f9677c [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" "d32f7b3634965b5ef394652169b35ebe7224e028be91b085e45d17ea49f9677c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d32f7b3634965b5ef394652169b35ebe7224e028be91b085e45d17ea49f9677c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d32f7b3634965b5ef394652169b35ebe7224e028be91b085e45d17ea49f9677c", kill_on_drop: false }` [INFO] [stdout] d32f7b3634965b5ef394652169b35ebe7224e028be91b085e45d17ea49f9677c [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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] bbd5001b9927af11a62542ea97bba60676a6c84303068b654648b0c69623243b [INFO] running `Command { std: "docker" "start" "-a" "bbd5001b9927af11a62542ea97bba60676a6c84303068b654648b0c69623243b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling hello-world v1.1.0 (/opt/rustwide/workdir/exercism/hello-world) [INFO] [stderr] Compiling functions v0.1.0 (/opt/rustwide/workdir/functions) [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/variables) [INFO] [stderr] Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo) [INFO] [stderr] Compiling branches v0.1.0 (/opt/rustwide/workdir/branches) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership) [INFO] [stderr] Compiling enums v0.1.0 (/opt/rustwide/workdir/enums) [INFO] [stderr] Compiling structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stdout] warning: unused variable: `four` [INFO] [stdout] --> enums/src/main.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let four = IpAddrKind::V4; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_four` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six` [INFO] [stdout] --> enums/src/main.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let six = IpAddrKind::V6; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> enums/src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let home = IpAddr::V4(String::from("127.0.0.1")); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> enums/src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Message` [INFO] [stdout] --> enums/src/main.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.30s [INFO] running `Command { std: "docker" "inspect" "bbd5001b9927af11a62542ea97bba60676a6c84303068b654648b0c69623243b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bbd5001b9927af11a62542ea97bba60676a6c84303068b654648b0c69623243b", kill_on_drop: false }` [INFO] [stdout] bbd5001b9927af11a62542ea97bba60676a6c84303068b654648b0c69623243b [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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 686207c984f596171f7ee7d7314265f4b027ffacb508b814b207e772eb1b8005 [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" "686207c984f596171f7ee7d7314265f4b027ffacb508b814b207e772eb1b8005", kill_on_drop: false }` [INFO] [stderr] Compiling branches v0.1.0 (/opt/rustwide/workdir/branches) [INFO] [stderr] Compiling functions v0.1.0 (/opt/rustwide/workdir/functions) [INFO] [stderr] Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo) [INFO] [stderr] Compiling structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership) [INFO] [stderr] Compiling variables v0.1.0 (/opt/rustwide/workdir/variables) [INFO] [stderr] Compiling enums v0.1.0 (/opt/rustwide/workdir/enums) [INFO] [stderr] Compiling hello-world v1.1.0 (/opt/rustwide/workdir/exercism/hello-world) [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game) [INFO] [stdout] warning: unused variable: `four` [INFO] [stdout] --> enums/src/main.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let four = IpAddrKind::V4; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_four` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six` [INFO] [stdout] --> enums/src/main.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let six = IpAddrKind::V6; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> enums/src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let home = IpAddr::V4(String::from("127.0.0.1")); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> enums/src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Message` [INFO] [stdout] --> enums/src/main.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.57s [INFO] running `Command { std: "docker" "inspect" "686207c984f596171f7ee7d7314265f4b027ffacb508b814b207e772eb1b8005", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "686207c984f596171f7ee7d7314265f4b027ffacb508b814b207e772eb1b8005", kill_on_drop: false }` [INFO] [stdout] 686207c984f596171f7ee7d7314265f4b027ffacb508b814b207e772eb1b8005 [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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 767f85d1227a85a308d31e93efd892252eba37f9c178505b5499cff77afd876a [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" "767f85d1227a85a308d31e93efd892252eba37f9c178505b5499cff77afd876a", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `four` [INFO] [stderr] --> enums/src/main.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let four = IpAddrKind::V4; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_four` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `six` [INFO] [stderr] --> enums/src/main.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let six = IpAddrKind::V6; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> enums/src/main.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | let home = IpAddr::V4(String::from("127.0.0.1")); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `loopback` [INFO] [stderr] --> enums/src/main.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Message` [INFO] [stderr] --> enums/src/main.rs:21:6 [INFO] [stderr] | [INFO] [stderr] 21 | enum Message { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/branches-d43467f542a6e1b2) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/enums-1401c77db5c85cfb) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/functions-31ebbd7d23629338) [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] [stderr] Running unittests (/opt/rustwide/target/debug/deps/guessing_game-7de91e55e8166121) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/hello_world-f28580a984056450) [INFO] [stdout] running 0 tests [INFO] [stderr] Running tests/hello-world.rs (/opt/rustwide/target/debug/deps/hello_world-c7672341f9110a60) [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] [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] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/hello_cargo-328d02c6017f2b95) [INFO] [stdout] test test_hello_world ... ok [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/ownership-1497a1f546933504) [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] [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] [stderr] Running unittests (/opt/rustwide/target/debug/deps/structs-2602d88ff54ab2f1) [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] [stderr] Running unittests (/opt/rustwide/target/debug/deps/variables-906508956016ddba) [INFO] [stdout] [INFO] [stderr] Doc-tests hello-world [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] [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" "767f85d1227a85a308d31e93efd892252eba37f9c178505b5499cff77afd876a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "767f85d1227a85a308d31e93efd892252eba37f9c178505b5499cff77afd876a", kill_on_drop: false }` [INFO] [stdout] 767f85d1227a85a308d31e93efd892252eba37f9c178505b5499cff77afd876a