[INFO] fetching crate larn 0.1.2... [INFO] testing larn-0.1.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] extracting crate larn 0.1.2 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate larn 0.1.2 [INFO] finished tweaking crates.io crate larn 0.1.2 [INFO] tweaked toml for crates.io crate larn 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate larn 0.1.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate larn 0.1.2 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded clap v4.5.20 [INFO] [stderr] Downloaded proc-macro2 v1.0.88 [INFO] [stderr] Downloaded cc v1.1.31 [INFO] [stderr] Downloaded clap_builder v4.5.20 [INFO] [stderr] Downloaded redis v0.27.5 [INFO] [stderr] Downloaded syn v2.0.81 [INFO] [stderr] Downloaded rustls v0.23.15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 857fd40f088a08b62ed6464514cdbe791574650098a5604ec908f6f2d40e4864 [INFO] running `Command { std: "docker" "start" "-a" "857fd40f088a08b62ed6464514cdbe791574650098a5604ec908f6f2d40e4864", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "857fd40f088a08b62ed6464514cdbe791574650098a5604ec908f6f2d40e4864", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "857fd40f088a08b62ed6464514cdbe791574650098a5604ec908f6f2d40e4864", kill_on_drop: false }` [INFO] [stdout] 857fd40f088a08b62ed6464514cdbe791574650098a5604ec908f6f2d40e4864 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1a716b934cc2a0bbe8a2704f02256a4e7e0f33d16ef0cf3fd518fb53e793ba53 [INFO] running `Command { std: "docker" "start" "-a" "1a716b934cc2a0bbe8a2704f02256a4e7e0f33d16ef0cf3fd518fb53e793ba53", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.161 [INFO] [stderr] Compiling proc-macro2 v1.0.88 [INFO] [stderr] Compiling cc v1.1.31 [INFO] [stderr] Compiling openssl v0.10.68 [INFO] [stderr] Compiling futures-task v0.3.31 [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Compiling native-tls v0.2.12 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling serde_json v1.0.132 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling clap_lex v0.7.2 [INFO] [stderr] Compiling combine v4.6.7 [INFO] [stderr] Compiling sync_wrapper v1.0.1 [INFO] [stderr] Compiling encoding_rs v0.8.34 [INFO] [stderr] Compiling ipnet v2.10.1 [INFO] [stderr] Compiling sha1_smol v1.0.1 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling arc-swap v1.7.1 [INFO] [stderr] Compiling chrono v0.4.38 [INFO] [stderr] Compiling clap_builder v4.5.20 [INFO] [stderr] Compiling num-bigint v0.4.6 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling syn v2.0.81 [INFO] [stderr] Compiling socket2 v0.5.7 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling mio v1.0.2 [INFO] [stderr] Compiling signal-hook-registry v1.4.2 [INFO] [stderr] Compiling openssl-sys v0.9.104 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling http-body-util v0.1.2 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling clap_derive v4.5.18 [INFO] [stderr] Compiling redis v0.27.5 [INFO] [stderr] Compiling tokio v1.40.0 [INFO] [stderr] Compiling clap v4.5.20 [INFO] [stderr] Compiling tokio-util v0.7.12 [INFO] [stderr] Compiling tokio-native-tls v0.3.1 [INFO] [stderr] Compiling h2 v0.4.6 [INFO] [stderr] Compiling hyper v1.5.0 [INFO] [stderr] Compiling hyper-util v0.1.9 [INFO] [stderr] Compiling hyper-tls v0.6.0 [INFO] [stderr] Compiling reqwest v0.12.8 [INFO] [stderr] Compiling larn v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this function depends on never type fallback being `()` [INFO] [stdout] --> src/commands/learn.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | fn retrieve_feedback() -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = help: specify the types explicitly [INFO] [stdout] note: in edition 2024, the requirement `!: FromRedisValue` will fail [INFO] [stdout] --> src/commands/learn.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | con.del(&key)?; [INFO] [stdout] | ^^^ [INFO] [stdout] = note: `#[deny(dependency_on_unit_never_type_fallback)]` (part of `#[deny(rust_2024_compatibility)]`) on by default [INFO] [stdout] help: use `()` annotations to avoid fallback changes [INFO] [stdout] | [INFO] [stdout] 21 | con.del::<_, ()>(&key)?; [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `larn` (bin "larn") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "1a716b934cc2a0bbe8a2704f02256a4e7e0f33d16ef0cf3fd518fb53e793ba53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a716b934cc2a0bbe8a2704f02256a4e7e0f33d16ef0cf3fd518fb53e793ba53", kill_on_drop: false }` [INFO] [stdout] 1a716b934cc2a0bbe8a2704f02256a4e7e0f33d16ef0cf3fd518fb53e793ba53