[INFO] cloning repository https://github.com/flowerhill/rust-hkt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flowerhill/rust-hkt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflowerhill%2Frust-hkt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflowerhill%2Frust-hkt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d42e828a30b6015880c82657892d5402a33381c
[INFO] building flowerhill/rust-hkt against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflowerhill%2Frust-hkt" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flowerhill/rust-hkt on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flowerhill/rust-hkt
[INFO] finished tweaking git repo https://github.com/flowerhill/rust-hkt
[INFO] tweaked toml for git repo https://github.com/flowerhill/rust-hkt written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/flowerhill/rust-hkt 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35a8439ff77b737a4b4f241e106663a51b3c4f82d1460ebd2fc263261453b47f
[INFO] running `Command { std: "docker" "start" "-a" "35a8439ff77b737a4b4f241e106663a51b3c4f82d1460ebd2fc263261453b47f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35a8439ff77b737a4b4f241e106663a51b3c4f82d1460ebd2fc263261453b47f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a8439ff77b737a4b4f241e106663a51b3c4f82d1460ebd2fc263261453b47f", kill_on_drop: false }`
[INFO] [stdout] 35a8439ff77b737a4b4f241e106663a51b3c4f82d1460ebd2fc263261453b47f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f70a1a8a68972cd04b035824b75a9922d30325253f15665ee5234b3fc2d1c1a5
[INFO] running `Command { std: "docker" "start" "-a" "f70a1a8a68972cd04b035824b75a9922d30325253f15665ee5234b3fc2d1c1a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-hkt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Functor` is never used
[INFO] [stdout]  --> src/hkt_impl.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Functor {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Applicative` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Applicative: Functor {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monad` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Monad: Applicative {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptionF` is never constructed
[INFO] [stdout]   --> src/hkt_impl.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct OptionF<T>(Option<T>);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fmap` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<T> OptionF<T> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 42 |     fn fmap<F, B>(self, f: F) -> impl Functor<Inner = B, This<B> = Result<B, ()>>
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "f70a1a8a68972cd04b035824b75a9922d30325253f15665ee5234b3fc2d1c1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70a1a8a68972cd04b035824b75a9922d30325253f15665ee5234b3fc2d1c1a5", kill_on_drop: false }`
[INFO] [stdout] f70a1a8a68972cd04b035824b75a9922d30325253f15665ee5234b3fc2d1c1a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45739dc2e86c178e2954ec997e18259da15a06a3496dbbc8f1712d05cae641c5
[INFO] running `Command { std: "docker" "start" "-a" "45739dc2e86c178e2954ec997e18259da15a06a3496dbbc8f1712d05cae641c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-hkt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Functor` is never used
[INFO] [stdout]  --> src/hkt_impl.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Functor {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Applicative` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Applicative: Functor {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monad` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Monad: Applicative {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptionF` is never constructed
[INFO] [stdout]   --> src/hkt_impl.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct OptionF<T>(Option<T>);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fmap` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<T> OptionF<T> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 42 |     fn fmap<F, B>(self, f: F) -> impl Functor<Inner = B, This<B> = Result<B, ()>>
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Functor` is never used
[INFO] [stdout]  --> src/hkt_impl.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Functor {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Applicative` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Applicative: Functor {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monad` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Monad: Applicative {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptionF` is never constructed
[INFO] [stdout]   --> src/hkt_impl.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct OptionF<T>(Option<T>);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fmap` is never used
[INFO] [stdout]   --> src/hkt_impl.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<T> OptionF<T> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 42 |     fn fmap<F, B>(self, f: F) -> impl Functor<Inner = B, This<B> = Result<B, ()>>
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "45739dc2e86c178e2954ec997e18259da15a06a3496dbbc8f1712d05cae641c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45739dc2e86c178e2954ec997e18259da15a06a3496dbbc8f1712d05cae641c5", kill_on_drop: false }`
[INFO] [stdout] 45739dc2e86c178e2954ec997e18259da15a06a3496dbbc8f1712d05cae641c5