[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 try#e983148bd5f0f0db270bfb72149f5e892e68b67f for pr-150322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxnuk%2Flibyaml" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xnuk/libyaml on toolchain e983148bd5f0f0db270bfb72149f5e892e68b67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9abd4df125c42eeab1132aaf6e839843158dc210ae7f33db688f247f3d36353b
[INFO] running `Command { std: "docker" "start" "-a" "9abd4df125c42eeab1132aaf6e839843158dc210ae7f33db688f247f3d36353b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9abd4df125c42eeab1132aaf6e839843158dc210ae7f33db688f247f3d36353b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9abd4df125c42eeab1132aaf6e839843158dc210ae7f33db688f247f3d36353b", kill_on_drop: false }`
[INFO] [stdout] 9abd4df125c42eeab1132aaf6e839843158dc210ae7f33db688f247f3d36353b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+e983148bd5f0f0db270bfb72149f5e892e68b67f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f0fcd406082b7aa0d9f8aa4a1e288cdeb5b0d5483ba96c9bbf05b3266232ff4
[INFO] running `Command { std: "docker" "start" "-a" "2f0fcd406082b7aa0d9f8aa4a1e288cdeb5b0d5483ba96c9bbf05b3266232ff4", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.51
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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<Struct>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Struct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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(Vec<Struct>),
[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<String, Struct>),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Struct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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(HashMap<String, Struct>),
[INFO] [stdout] 11 +     Map(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StructBoundary` is never used
[INFO] [stdout]    --> src/streamed.rs:240:6
[INFO] [stdout]     |
[INFO] [stdout] 240 | enum StructBoundary {
[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<Struct>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Struct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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(Vec<Struct>),
[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<String, Struct>),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Struct` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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(HashMap<String, Struct>),
[INFO] [stdout] 11 +     Map(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StructBoundary` is never used
[INFO] [stdout]    --> src/streamed.rs:240:6
[INFO] [stdout]     |
[INFO] [stdout] 240 | enum StructBoundary {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "2f0fcd406082b7aa0d9f8aa4a1e288cdeb5b0d5483ba96c9bbf05b3266232ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0fcd406082b7aa0d9f8aa4a1e288cdeb5b0d5483ba96c9bbf05b3266232ff4", kill_on_drop: false }`
[INFO] [stdout] 2f0fcd406082b7aa0d9f8aa4a1e288cdeb5b0d5483ba96c9bbf05b3266232ff4
