[INFO] cloning repository https://github.com/schatzmeister/rust-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/schatzmeister/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschatzmeister%2Frust-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschatzmeister%2Frust-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ae92f7c6296f05328f1aeb24c09a942a34655400 [INFO] documenting schatzmeister/rust-playground against master#d7d9f15be205b45d44700e7ac33b4f79b91f9680 for pr-117450 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschatzmeister%2Frust-playground" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/schatzmeister/rust-playground on toolchain d7d9f15be205b45d44700e7ac33b4f79b91f9680 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/schatzmeister/rust-playground [INFO] finished tweaking git repo https://github.com/schatzmeister/rust-playground [INFO] tweaked toml for git repo https://github.com/schatzmeister/rust-playground written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/schatzmeister/rust-playground 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" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9ba43fab3b866430d684f8f8cf9c2a3f8da631b7ae29db4fe97eef9e6bd0a57c [INFO] running `Command { std: "docker" "start" "-a" "9ba43fab3b866430d684f8f8cf9c2a3f8da631b7ae29db4fe97eef9e6bd0a57c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ba43fab3b866430d684f8f8cf9c2a3f8da631b7ae29db4fe97eef9e6bd0a57c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ba43fab3b866430d684f8f8cf9c2a3f8da631b7ae29db4fe97eef9e6bd0a57c", kill_on_drop: false }` [INFO] [stdout] 9ba43fab3b866430d684f8f8cf9c2a3f8da631b7ae29db4fe97eef9e6bd0a57c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e66720c3f2393bc872c702f2ca87c694cd2ee7110283331876aa24a1e8b5b27b [INFO] running `Command { std: "docker" "start" "-a" "e66720c3f2393bc872c702f2ca87c694cd2ee7110283331876aa24a1e8b5b27b", kill_on_drop: false }` [INFO] [stderr] Documenting rust-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.42s [INFO] [stderr] Generated /opt/rustwide/target/doc/rust_playground/index.html [INFO] running `Command { std: "docker" "inspect" "e66720c3f2393bc872c702f2ca87c694cd2ee7110283331876aa24a1e8b5b27b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e66720c3f2393bc872c702f2ca87c694cd2ee7110283331876aa24a1e8b5b27b", kill_on_drop: false }` [INFO] [stdout] e66720c3f2393bc872c702f2ca87c694cd2ee7110283331876aa24a1e8b5b27b [INFO] documenting schatzmeister/rust-playground against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschatzmeister%2Frust-playground" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/schatzmeister/rust-playground on toolchain 50be22964035027398754e54cd3a497efb00f83e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/schatzmeister/rust-playground [INFO] finished tweaking git repo https://github.com/schatzmeister/rust-playground [INFO] tweaked toml for git repo https://github.com/schatzmeister/rust-playground written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/schatzmeister/rust-playground 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" "+50be22964035027398754e54cd3a497efb00f83e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 875eb93f8ab69b171d9d8079596b3eab137fdc812f8a18eab3d47fdd11020171 [INFO] running `Command { std: "docker" "start" "-a" "875eb93f8ab69b171d9d8079596b3eab137fdc812f8a18eab3d47fdd11020171", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "875eb93f8ab69b171d9d8079596b3eab137fdc812f8a18eab3d47fdd11020171", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "875eb93f8ab69b171d9d8079596b3eab137fdc812f8a18eab3d47fdd11020171", kill_on_drop: false }` [INFO] [stdout] 875eb93f8ab69b171d9d8079596b3eab137fdc812f8a18eab3d47fdd11020171 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+50be22964035027398754e54cd3a497efb00f83e" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ea7006fb41f50051ec8089a25b6d6778dcfc1d60fdd7b9dd3b519472eb81a12d [INFO] running `Command { std: "docker" "start" "-a" "ea7006fb41f50051ec8089a25b6d6778dcfc1d60fdd7b9dd3b519472eb81a12d", kill_on_drop: false }` [INFO] [stderr] Documenting rust-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple [INFO] [stdout] --> src/main.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl Fn for FnCompose { [INFO] [stdout] | ^^^^^ the trait `std::marker::Tuple` is not implemented for `A` [INFO] [stdout] | [INFO] [stdout] note: required by a bound in `std::ops::Fn` [INFO] [stdout] --> /rustc/50be22964035027398754e54cd3a497efb00f83e/library/core/src/ops/function.rs:76:1 [INFO] [stdout] help: consider restricting type parameter `A` [INFO] [stdout] | [INFO] [stdout] 12 | impl Fn for FnCompose { [INFO] [stdout] | ++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple [INFO] [stdout] --> src/main.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl FnMut for FnCompose { [INFO] [stdout] | ^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `A` [INFO] [stdout] | [INFO] [stdout] note: required by a bound in `std::ops::FnMut` [INFO] [stdout] --> /rustc/50be22964035027398754e54cd3a497efb00f83e/library/core/src/ops/function.rs:163:1 [INFO] [stdout] help: consider restricting type parameter `A` [INFO] [stdout] | [INFO] [stdout] 18 | impl FnMut for FnCompose { [INFO] [stdout] | ++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple [INFO] [stdout] --> src/main.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | impl FnOnce for FnCompose { [INFO] [stdout] | ^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `A` [INFO] [stdout] | [INFO] [stdout] note: required by a bound in `std::ops::FnOnce` [INFO] [stdout] --> /rustc/50be22964035027398754e54cd3a497efb00f83e/library/core/src/ops/function.rs:242:1 [INFO] [stdout] help: consider restricting type parameter `A` [INFO] [stdout] | [INFO] [stdout] 24 | impl FnOnce for FnCompose { [INFO] [stdout] | ++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | extern "rust-call" fn call(&self, args: A) -> Self::Output { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `A` [INFO] [stdout] | [INFO] [stdout] help: consider restricting type parameter `A` [INFO] [stdout] | [INFO] [stdout] 12 | impl Fn for FnCompose { [INFO] [stdout] | ++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | extern "rust-call" fn call_mut(&mut self, args: A) -> Self::Output { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `A` [INFO] [stdout] | [INFO] [stdout] help: consider restricting type parameter `A` [INFO] [stdout] | [INFO] [stdout] 18 | impl FnMut for FnCompose { [INFO] [stdout] | ++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument [INFO] [stdout] --> src/main.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 27 | extern "rust-call" fn call_once(self, args: A) -> Self::Output { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Tuple` is not implemented for `A` [INFO] [stdout] | [INFO] [stdout] help: consider restricting type parameter `A` [INFO] [stdout] | [INFO] [stdout] 24 | impl FnOnce for FnCompose { [INFO] [stdout] | ++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 6 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0059, E0277. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0059`. [INFO] [stdout] [INFO] [stderr] error: could not document `rust-playground` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/50be22964035027398754e54cd3a497efb00f83e/bin/rustdoc --edition=2018 --crate-type bin --crate-name rust_playground src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=b294571af753a53b -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid --crate-version 0.1.0` (exit status: 1) [INFO] running `Command { std: "docker" "inspect" "ea7006fb41f50051ec8089a25b6d6778dcfc1d60fdd7b9dd3b519472eb81a12d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea7006fb41f50051ec8089a25b6d6778dcfc1d60fdd7b9dd3b519472eb81a12d", kill_on_drop: false }` [INFO] [stdout] ea7006fb41f50051ec8089a25b6d6778dcfc1d60fdd7b9dd3b519472eb81a12d