[INFO] cloning repository https://github.com/xnuk/libyaml [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xnuk/libyaml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnuk%2Flibyaml", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnuk%2Flibyaml'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e1100c30e16ce07b6ce9cceea8e84066ee8ebcbb [INFO] checking xnuk/libyaml against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnuk%2Flibyaml" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/xnuk/libyaml on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xnuk/libyaml [INFO] finished tweaking git repo https://github.com/xnuk/libyaml [INFO] tweaked toml for git repo https://github.com/xnuk/libyaml written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/xnuk/libyaml already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1a42fad8b96b7a2321cfd5335047ed00e59ed60e876c63a1416a61f0760e22d0 [INFO] running `Command { std: "docker" "start" "-a" "1a42fad8b96b7a2321cfd5335047ed00e59ed60e876c63a1416a61f0760e22d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1a42fad8b96b7a2321cfd5335047ed00e59ed60e876c63a1416a61f0760e22d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a42fad8b96b7a2321cfd5335047ed00e59ed60e876c63a1416a61f0760e22d0", kill_on_drop: false }` [INFO] [stdout] 1a42fad8b96b7a2321cfd5335047ed00e59ed60e876c63a1416a61f0760e22d0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d1e275120ef9d63aefa041e83bc81b4bd0f5ed4c30306668ac5369214132aab [INFO] running `Command { std: "docker" "start" "-a" "7d1e275120ef9d63aefa041e83bc81b4bd0f5ed4c30306668ac5369214132aab", kill_on_drop: false }` [INFO] [stderr] Compiling anyhow v1.0.51 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking yam v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `style` [INFO] [stdout] --> src/structed.rs:123:19 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_style` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tt` [INFO] [stdout] --> src/structed.rs:123:34 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `style` [INFO] [stdout] --> src/structed.rs:123:19 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_style` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tt` [INFO] [stdout] --> src/structed.rs:123:34 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/structed.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | Array(Vec), [INFO] [stdout] | ----- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 | Array(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/structed.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | Map(HashMap), [INFO] [stdout] | --- ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 11 | Map(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/structed.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | Array(Vec), [INFO] [stdout] | ----- ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 | Array(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/structed.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | Map(HashMap), [INFO] [stdout] | --- ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 11 | Map(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s [INFO] running `Command { std: "docker" "inspect" "7d1e275120ef9d63aefa041e83bc81b4bd0f5ed4c30306668ac5369214132aab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d1e275120ef9d63aefa041e83bc81b4bd0f5ed4c30306668ac5369214132aab", kill_on_drop: false }` [INFO] [stdout] 7d1e275120ef9d63aefa041e83bc81b4bd0f5ed4c30306668ac5369214132aab [INFO] checking xnuk/libyaml against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnuk%2Flibyaml" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/xnuk/libyaml on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xnuk/libyaml [INFO] finished tweaking git repo https://github.com/xnuk/libyaml [INFO] tweaked toml for git repo https://github.com/xnuk/libyaml written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/xnuk/libyaml already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f150384a90a460876a44f96a03d895bee9fa9a79fb803d72aa049194fdc219f9 [INFO] running `Command { std: "docker" "start" "-a" "f150384a90a460876a44f96a03d895bee9fa9a79fb803d72aa049194fdc219f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f150384a90a460876a44f96a03d895bee9fa9a79fb803d72aa049194fdc219f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f150384a90a460876a44f96a03d895bee9fa9a79fb803d72aa049194fdc219f9", kill_on_drop: false }` [INFO] [stdout] f150384a90a460876a44f96a03d895bee9fa9a79fb803d72aa049194fdc219f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 67aba20af5cc94d39cf55abb75c8d33d22a1fe45343184b5887ed1960fdf358b [INFO] running `Command { std: "docker" "start" "-a" "67aba20af5cc94d39cf55abb75c8d33d22a1fe45343184b5887ed1960fdf358b", kill_on_drop: false }` [INFO] [stderr] Compiling anyhow v1.0.51 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking yam v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/structed.rs:32:6 [INFO] [stdout] | [INFO] [stdout] 32 | None?; [INFO] [stdout] | ^^^^ cannot infer type of the type parameter `T` declared on the enum `Option` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic argument [INFO] [stdout] | [INFO] [stdout] 32 | None::?; [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/structed.rs:32:6 [INFO] [stdout] | [INFO] [stdout] 32 | None?; [INFO] [stdout] | ^^^^ cannot infer type of the type parameter `T` declared on the enum `Option` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic argument [INFO] [stdout] | [INFO] [stdout] 32 | None::?; [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `style` [INFO] [stdout] --> src/structed.rs:123:19 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_style` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tt` [INFO] [stdout] --> src/structed.rs:123:34 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `style` [INFO] [stdout] --> src/structed.rs:123:19 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_style` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tt` [INFO] [stdout] --> src/structed.rs:123:34 [INFO] [stdout] | [INFO] [stdout] 123 | Scalar(string, style, anchor, tt) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `yam` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `yam` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "67aba20af5cc94d39cf55abb75c8d33d22a1fe45343184b5887ed1960fdf358b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "67aba20af5cc94d39cf55abb75c8d33d22a1fe45343184b5887ed1960fdf358b", kill_on_drop: false }` [INFO] [stdout] 67aba20af5cc94d39cf55abb75c8d33d22a1fe45343184b5887ed1960fdf358b