[INFO] cloning repository https://github.com/tynr426/mod_learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tynr426/mod_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftynr426%2Fmod_learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftynr426%2Fmod_learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] abcef15e23338acfb159bf1a6fcfbcc2a7f1ceec [INFO] checking tynr426/mod_learn against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftynr426%2Fmod_learn" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tynr426/mod_learn on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tynr426/mod_learn [INFO] finished tweaking git repo https://github.com/tynr426/mod_learn [INFO] tweaked toml for git repo https://github.com/tynr426/mod_learn written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/tynr426/mod_learn already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", 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] e14136e2f1659f51baf7765dc55ffd5b78cd8a2d119af36f8a10cd4b1de00bdc [INFO] running `Command { std: "docker" "start" "-a" "e14136e2f1659f51baf7765dc55ffd5b78cd8a2d119af36f8a10cd4b1de00bdc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e14136e2f1659f51baf7765dc55ffd5b78cd8a2d119af36f8a10cd4b1de00bdc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e14136e2f1659f51baf7765dc55ffd5b78cd8a2d119af36f8a10cd4b1de00bdc", kill_on_drop: false }` [INFO] [stdout] e14136e2f1659f51baf7765dc55ffd5b78cd8a2d119af36f8a10cd4b1de00bdc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 45524b9e83813ee81b7a4b211e11a7011188a047e9f90482cf6b8861f635fe60 [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" "45524b9e83813ee81b7a4b211e11a7011188a047e9f90482cf6b8861f635fe60", kill_on_drop: false }` [INFO] [stderr] Checking mod_learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `none` [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let none = match_crate::plus_one(None); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `hello` [INFO] [stdout] --> src/japanese/greetings.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn hello() -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `goodbye` [INFO] [stdout] --> src/japanese/farewells.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn goodbye() -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Alabama` [INFO] [stdout] --> src/match_crate.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Penny` [INFO] [stdout] --> src/match_crate.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nickel` [INFO] [stdout] --> src/match_crate.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Dime` [INFO] [stdout] --> src/match_crate.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | Dime, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `none` [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let none = match_crate::plus_one(None); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `hello` [INFO] [stdout] --> src/japanese/greetings.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn hello() -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `goodbye` [INFO] [stdout] --> src/japanese/farewells.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn goodbye() -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Alabama` [INFO] [stdout] --> src/match_crate.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Penny` [INFO] [stdout] --> src/match_crate.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nickel` [INFO] [stdout] --> src/match_crate.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Dime` [INFO] [stdout] --> src/match_crate.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | Dime, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "45524b9e83813ee81b7a4b211e11a7011188a047e9f90482cf6b8861f635fe60", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45524b9e83813ee81b7a4b211e11a7011188a047e9f90482cf6b8861f635fe60", kill_on_drop: false }` [INFO] [stdout] 45524b9e83813ee81b7a4b211e11a7011188a047e9f90482cf6b8861f635fe60