[INFO] fetching crate computercraft_websocket_control 0.1.1... [INFO] checking computercraft_websocket_control-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate computercraft_websocket_control 0.1.1 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate computercraft_websocket_control 0.1.1 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 crates.io crate computercraft_websocket_control 0.1.1 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate computercraft_websocket_control 0.1.1 [INFO] tweaked toml for crates.io crate computercraft_websocket_control 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate computercraft_websocket_control 0.1.1 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 axum-macros v0.3.8 [INFO] [stderr] Downloaded utf-8 v0.7.6 [INFO] [stderr] Downloaded headers-core v0.2.0 [INFO] [stderr] Downloaded headers v0.3.9 [INFO] [stderr] Downloaded tungstenite v0.20.1 [INFO] [stderr] Downloaded stupid_utils v0.2.4 [INFO] [stderr] Downloaded tokio-tungstenite v0.20.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2cf0804e2772b07ca93d76efa94feeece7e7d54bf4c160baf520dd79f3604526 [INFO] running `Command { std: "docker" "start" "-a" "2cf0804e2772b07ca93d76efa94feeece7e7d54bf4c160baf520dd79f3604526", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2cf0804e2772b07ca93d76efa94feeece7e7d54bf4c160baf520dd79f3604526", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2cf0804e2772b07ca93d76efa94feeece7e7d54bf4c160baf520dd79f3604526", kill_on_drop: false }` [INFO] [stdout] 2cf0804e2772b07ca93d76efa94feeece7e7d54bf4c160baf520dd79f3604526 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3c47132622b4aea0d840397fe6b99a0dd885593a3b9d88519c71a79b928decf2 [INFO] running `Command { std: "docker" "start" "-a" "3c47132622b4aea0d840397fe6b99a0dd885593a3b9d88519c71a79b928decf2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Checking bytes v1.5.0 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Checking pin-project-lite v0.2.13 [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 slab v0.4.9 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Checking form_urlencoded v1.2.0 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Compiling thiserror v1.0.49 [INFO] [stderr] Checking unicode-bidi v0.3.13 [INFO] [stderr] Checking cpufeatures v0.2.9 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Compiling async-trait v0.1.73 [INFO] [stderr] Compiling axum-core v0.3.4 [INFO] [stderr] Checking data-encoding v2.4.0 [INFO] [stderr] Compiling rustix v0.38.20 [INFO] [stderr] Checking tower-layer v0.3.2 [INFO] [stderr] Checking try-lock v0.2.4 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Compiling axum v0.6.20 [INFO] [stderr] Checking linux-raw-sys v0.4.10 [INFO] [stderr] Checking base64 v0.21.4 [INFO] [stderr] Checking http v0.2.9 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking matchit v0.7.3 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking termcolor v1.3.0 [INFO] [stderr] Checking stupid_utils v0.2.4 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking idna v0.4.0 [INFO] [stderr] Checking url v2.4.1 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking parking_lot_core v0.9.8 [INFO] [stderr] Checking socket2 v0.5.4 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking http-body v0.4.5 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking headers v0.3.9 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking serde_path_to_error v0.1.14 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking env_logger v0.10.0 [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 tokio v1.33.0 [INFO] [stderr] Checking tungstenite v0.20.1 [INFO] [stderr] Checking pin-project v1.1.3 [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 v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.25s [INFO] running `Command { std: "docker" "inspect" "3c47132622b4aea0d840397fe6b99a0dd885593a3b9d88519c71a79b928decf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c47132622b4aea0d840397fe6b99a0dd885593a3b9d88519c71a79b928decf2", kill_on_drop: false }` [INFO] [stdout] 3c47132622b4aea0d840397fe6b99a0dd885593a3b9d88519c71a79b928decf2 [INFO] checking computercraft_websocket_control-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate computercraft_websocket_control 0.1.1 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate computercraft_websocket_control 0.1.1 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 crates.io crate computercraft_websocket_control 0.1.1 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate computercraft_websocket_control 0.1.1 [INFO] tweaked toml for crates.io crate computercraft_websocket_control 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate computercraft_websocket_control 0.1.1 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] [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b9dee93cf5c1bd9d6abd3eea2567020f02fe8ccf7fa8bc0df9371a8176fc6129 [INFO] running `Command { std: "docker" "start" "-a" "b9dee93cf5c1bd9d6abd3eea2567020f02fe8ccf7fa8bc0df9371a8176fc6129", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b9dee93cf5c1bd9d6abd3eea2567020f02fe8ccf7fa8bc0df9371a8176fc6129", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9dee93cf5c1bd9d6abd3eea2567020f02fe8ccf7fa8bc0df9371a8176fc6129", kill_on_drop: false }` [INFO] [stdout] b9dee93cf5c1bd9d6abd3eea2567020f02fe8ccf7fa8bc0df9371a8176fc6129 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6a8539971d5bc603fe06a0bc5a947f78dfdd4381852949dd8f4bc86e3a4aa43f [INFO] running `Command { std: "docker" "start" "-a" "6a8539971d5bc603fe06a0bc5a947f78dfdd4381852949dd8f4bc86e3a4aa43f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Checking bytes v1.5.0 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Checking pin-project-lite v0.2.13 [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] Compiling slab v0.4.9 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Checking form_urlencoded v1.2.0 [INFO] [stderr] Checking unicode-bidi v0.3.13 [INFO] [stderr] Checking cpufeatures v0.2.9 [INFO] [stderr] Compiling thiserror v1.0.49 [INFO] [stderr] Checking tracing-core v0.1.31 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Compiling async-trait v0.1.73 [INFO] [stderr] Compiling axum-core v0.3.4 [INFO] [stderr] Compiling rustix v0.38.20 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Checking idna v0.4.0 [INFO] [stderr] Checking try-lock v0.2.4 [INFO] [stderr] Checking http v0.2.9 [INFO] [stderr] Checking data-encoding v2.4.0 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Checking tower-layer v0.3.2 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Compiling axum v0.6.20 [INFO] [stderr] Checking base64 v0.21.4 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking linux-raw-sys v0.4.10 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Checking matchit v0.7.3 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking termcolor v1.3.0 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking stupid_utils v0.2.4 [INFO] [stderr] Checking url v2.4.1 [INFO] [stderr] Checking http-body v0.4.5 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Checking headers v0.3.9 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking parking_lot_core v0.9.8 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking socket2 v0.5.4 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking serde_path_to_error v0.1.14 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking env_logger v0.10.0 [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 tokio v1.33.0 [INFO] [stderr] Checking tungstenite v0.20.1 [INFO] [stderr] Checking pin-project v1.1.3 [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 v0.1.1 (/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" "6a8539971d5bc603fe06a0bc5a947f78dfdd4381852949dd8f4bc86e3a4aa43f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a8539971d5bc603fe06a0bc5a947f78dfdd4381852949dd8f4bc86e3a4aa43f", kill_on_drop: false }` [INFO] [stdout] 6a8539971d5bc603fe06a0bc5a947f78dfdd4381852949dd8f4bc86e3a4aa43f