[INFO] cloning repository https://github.com/wefcdse/websocket_control [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wefcdse/websocket_control" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fwebsocket_control", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fwebsocket_control'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7269870de19ffe538af71f5dfcb7eaf2b8c2d1ee [INFO] checking wefcdse/websocket_control against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fwebsocket_control" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wefcdse/websocket_control on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wefcdse/websocket_control [INFO] removed 0 missing examples [INFO] finished tweaking git repo https://github.com/wefcdse/websocket_control [INFO] tweaked toml for git repo https://github.com/wefcdse/websocket_control written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/wefcdse/websocket_control 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded stupid_utils v0.2.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f62e3f4b911fa19b0555a11086f61bc8085b13be9552674bad48650b5bda83d3 [INFO] running `Command { std: "docker" "start" "-a" "f62e3f4b911fa19b0555a11086f61bc8085b13be9552674bad48650b5bda83d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f62e3f4b911fa19b0555a11086f61bc8085b13be9552674bad48650b5bda83d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f62e3f4b911fa19b0555a11086f61bc8085b13be9552674bad48650b5bda83d3", kill_on_drop: false }` [INFO] [stdout] f62e3f4b911fa19b0555a11086f61bc8085b13be9552674bad48650b5bda83d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a8d0efb96aaeda25aa2ee13476f8bc186fd44d77e4835ed26c1a7fc449d50e11 [INFO] running `Command { std: "docker" "start" "-a" "a8d0efb96aaeda25aa2ee13476f8bc186fd44d77e4835ed26c1a7fc449d50e11", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Checking futures-sink v0.3.28 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking http v0.2.9 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Compiling thiserror v1.0.49 [INFO] [stderr] Checking cpufeatures v0.2.9 [INFO] [stderr] Checking unicode-bidi v0.3.13 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Compiling async-trait v0.1.73 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking socket2 v0.5.4 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking http-body v0.4.5 [INFO] [stderr] Compiling axum-core v0.3.4 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking data-encoding v2.4.0 [INFO] [stderr] Compiling rustix v0.38.20 [INFO] [stderr] Checking idna v0.4.0 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Compiling axum v0.6.20 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Checking url v2.4.1 [INFO] [stderr] Checking base64 v0.21.4 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Checking headers v0.3.9 [INFO] [stderr] Checking matchit v0.7.3 [INFO] [stderr] Checking stupid_utils v0.2.4 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking termcolor v1.3.0 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking serde_path_to_error v0.1.14 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling thiserror-impl v1.0.49 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Compiling axum-macros v0.3.8 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking tokio v1.33.0 [INFO] [stderr] Checking env_logger v0.10.0 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking tungstenite v0.20.1 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking tokio-tungstenite v0.20.1 [INFO] [stderr] Checking tower v0.4.13 [INFO] [stderr] Checking hyper v0.14.27 [INFO] [stderr] Checking computercraft_websocket_control v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.54s [INFO] running `Command { std: "docker" "inspect" "a8d0efb96aaeda25aa2ee13476f8bc186fd44d77e4835ed26c1a7fc449d50e11", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8d0efb96aaeda25aa2ee13476f8bc186fd44d77e4835ed26c1a7fc449d50e11", kill_on_drop: false }` [INFO] [stdout] a8d0efb96aaeda25aa2ee13476f8bc186fd44d77e4835ed26c1a7fc449d50e11 [INFO] checking wefcdse/websocket_control against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fwebsocket_control" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wefcdse/websocket_control on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wefcdse/websocket_control [INFO] removed 0 missing examples [INFO] finished tweaking git repo https://github.com/wefcdse/websocket_control [INFO] tweaked toml for git repo https://github.com/wefcdse/websocket_control written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/wefcdse/websocket_control 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 97f8168485f3ee50c417442f6f76af014fe371232602182d79808d684cbd897f [INFO] running `Command { std: "docker" "start" "-a" "97f8168485f3ee50c417442f6f76af014fe371232602182d79808d684cbd897f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97f8168485f3ee50c417442f6f76af014fe371232602182d79808d684cbd897f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97f8168485f3ee50c417442f6f76af014fe371232602182d79808d684cbd897f", kill_on_drop: false }` [INFO] [stdout] 97f8168485f3ee50c417442f6f76af014fe371232602182d79808d684cbd897f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6196483ac7edf96632a57a96793d6ece325f1cba5742adacda176fc170ecb45b [INFO] running `Command { std: "docker" "start" "-a" "6196483ac7edf96632a57a96793d6ece325f1cba5742adacda176fc170ecb45b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking futures-sink v0.3.28 [INFO] [stderr] Checking http v0.2.9 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Compiling thiserror v1.0.49 [INFO] [stderr] Checking cpufeatures v0.2.9 [INFO] [stderr] Checking unicode-bidi v0.3.13 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking socket2 v0.5.4 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Compiling async-trait v0.1.73 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking http-body v0.4.5 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Compiling axum-core v0.3.4 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Compiling rustix v0.38.20 [INFO] [stderr] Checking data-encoding v2.4.0 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Checking idna v0.4.0 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Compiling axum v0.6.20 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Checking base64 v0.21.4 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking matchit v0.7.3 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking url v2.4.1 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking stupid_utils v0.2.4 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Checking termcolor v1.3.0 [INFO] [stderr] Checking headers v0.3.9 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking serde_path_to_error v0.1.14 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling thiserror-impl v1.0.49 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Compiling axum-macros v0.3.8 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking env_logger v0.10.0 [INFO] [stderr] Checking tokio v1.33.0 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking tungstenite v0.20.1 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking hyper v0.14.27 [INFO] [stderr] Checking tower v0.4.13 [INFO] [stderr] Checking tokio-tungstenite v0.20.1 [INFO] [stderr] Checking computercraft_websocket_control v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> examples/unused.rs:30:16 [INFO] [stdout] | [INFO] [stdout] 30 | .collect::>()?; [INFO] [stdout] | ------- ^^^^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!`, which is required by `Result<_, _>: FromIterator>` [INFO] [stdout] = help: the trait `FromIterator>` is implemented for `Result` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 for more information) [INFO] [stdout] = help: did you intend to use the type `()` here instead? [INFO] [stdout] = note: required for `Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `std::iter::Iterator::collect` [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/core/src/iter/traits/iterator.rs:1999:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `computercraft_websocket_control` (example "unused") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "6196483ac7edf96632a57a96793d6ece325f1cba5742adacda176fc170ecb45b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6196483ac7edf96632a57a96793d6ece325f1cba5742adacda176fc170ecb45b", kill_on_drop: false }` [INFO] [stdout] 6196483ac7edf96632a57a96793d6ece325f1cba5742adacda176fc170ecb45b