[INFO] cloning repository https://github.com/shff/combinators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shff/combinators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshff%2Fcombinators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshff%2Fcombinators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d533808c4fbd4f51923e1aa0b27557fdf894d004
[INFO] checking shff/combinators against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshff%2Fcombinators" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shff/combinators on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shff/combinators
[INFO] finished tweaking git repo https://github.com/shff/combinators
[INFO] tweaked toml for git repo https://github.com/shff/combinators written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/shff/combinators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9010f06a837266fc1019345caad65c27314f8ae392a13042c5f2934012d093ba
[INFO] running `Command { std: "docker" "start" "-a" "9010f06a837266fc1019345caad65c27314f8ae392a13042c5f2934012d093ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9010f06a837266fc1019345caad65c27314f8ae392a13042c5f2934012d093ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9010f06a837266fc1019345caad65c27314f8ae392a13042c5f2934012d093ba", kill_on_drop: false }`
[INFO] [stdout] 9010f06a837266fc1019345caad65c27314f8ae392a13042c5f2934012d093ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1816fc447fff6f13cac3e2c7a1734ea1e0c59297bba4614d18516b1cf9739686
[INFO] running `Command { std: "docker" "start" "-a" "1816fc447fff6f13cac3e2c7a1734ea1e0c59297bba4614d18516b1cf9739686", kill_on_drop: false }`
[INFO] [stderr]     Checking tangl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `print`
[INFO] [stdout]   --> src/lib.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn print<'a>(t: Token<'a>) -> 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: `left`
[INFO] [stdout]   --> src/lib.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn left<'a, A, B, X, Y>(a: A, b: B) -> impl Fn(&'a str) -> ParseResult<X>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `many`
[INFO] [stdout]    --> src/lib.rs:158:4
[INFO] [stdout]     |
[INFO] [stdout] 158 | fn many<'a, P, R>(p: P) -> impl Fn(&'a str) -> ParseResult<Vec<R>>
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "1816fc447fff6f13cac3e2c7a1734ea1e0c59297bba4614d18516b1cf9739686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1816fc447fff6f13cac3e2c7a1734ea1e0c59297bba4614d18516b1cf9739686", kill_on_drop: false }`
[INFO] [stdout] 1816fc447fff6f13cac3e2c7a1734ea1e0c59297bba4614d18516b1cf9739686