[INFO] fetching crate piper 0.2.1... [INFO] checking piper-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate piper 0.2.1 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate piper 0.2.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate piper 0.2.1 [INFO] finished tweaking crates.io crate piper 0.2.1 [INFO] tweaked toml for crates.io crate piper 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 100 packages [INFO] [stderr] Adding anes v0.1.6 (latest: v0.2.0) [INFO] [stderr] Adding async-channel v1.9.0 (latest: v2.2.0) [INFO] [stderr] Adding async-io v1.13.0 (latest: v2.3.2) [INFO] [stderr] Adding async-lock v2.8.0 (latest: v3.3.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding clap v3.2.25 (latest: v4.5.4) [INFO] [stderr] Adding clap_lex v0.2.4 (latest: v0.7.0) [INFO] [stderr] Adding criterion v0.4.0 (latest: v0.5.1) [INFO] [stderr] Adding event-listener v2.5.3 (latest: v5.2.0) [INFO] [stderr] Adding event-listener v4.0.3 (latest: v5.2.0) [INFO] [stderr] Adding event-listener-strategy v0.4.0 (latest: v0.5.1) [INFO] [stderr] Adding fastrand v1.9.0 (latest: v2.0.2) [INFO] [stderr] Adding futures-lite v1.13.0 (latest: v2.3.0) [INFO] [stderr] Adding hashbrown v0.12.3 (latest: v0.14.3) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding indexmap v1.9.3 (latest: v2.2.6) [INFO] [stderr] Adding io-lifetimes v1.0.11 (latest: v2.0.3) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding linux-raw-sys v0.3.8 (latest: v0.6.4) [INFO] [stderr] Adding os_str_bytes v6.6.1 (latest: v7.0.0) [INFO] [stderr] Adding polling v2.8.0 (latest: v3.6.0) [INFO] [stderr] Adding rustix v0.37.27 (latest: v0.38.32) [INFO] [stderr] Adding socket2 v0.4.10 (latest: v0.5.6) [INFO] [stderr] Adding windows-sys v0.48.0 (latest: v0.52.0) [INFO] [stderr] Adding windows-targets v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded easy-parallel v3.3.1 [INFO] [stderr] Downloaded portable-atomic-util v0.1.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4af778ffa133c6261eeb762fc80db29ac1930d89f127d638ccab29cc4f227b66 [INFO] running `Command { std: "docker" "start" "-a" "4af778ffa133c6261eeb762fc80db29ac1930d89f127d638ccab29cc4f227b66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4af778ffa133c6261eeb762fc80db29ac1930d89f127d638ccab29cc4f227b66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4af778ffa133c6261eeb762fc80db29ac1930d89f127d638ccab29cc4f227b66", kill_on_drop: false }` [INFO] [stdout] 4af778ffa133c6261eeb762fc80db29ac1930d89f127d638ccab29cc4f227b66 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ab4ce0740b8267e86b496c4101ee1a47b7bd39a64178c2b4260f7a408dcfaee8 [INFO] running `Command { std: "docker" "start" "-a" "ab4ce0740b8267e86b496c4101ee1a47b7bd39a64178c2b4260f7a408dcfaee8", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Compiling polling v2.8.0 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking half v2.4.0 [INFO] [stderr] Compiling rustix v0.37.27 [INFO] [stderr] Checking os_str_bytes v6.6.1 [INFO] [stderr] Checking fastrand v2.0.2 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Compiling async-io v1.13.0 [INFO] [stderr] Checking waker-fn v1.1.1 [INFO] [stderr] Checking fastrand v1.9.0 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Checking textwrap v0.16.1 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking async-lock v2.8.0 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking async-task v4.7.0 [INFO] [stderr] Checking easy-parallel v3.3.1 [INFO] [stderr] Checking piper v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/lib.rs:184:5 [INFO] [stdout] | [INFO] [stdout] 184 | use alloc::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stderr] Checking async-lock v3.3.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking async-executor v1.9.1 [INFO] [stderr] Checking socket2 v0.4.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.4.0 [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/lib.rs:184:5 [INFO] [stdout] | [INFO] [stdout] 184 | use alloc::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.21s [INFO] running `Command { std: "docker" "inspect" "ab4ce0740b8267e86b496c4101ee1a47b7bd39a64178c2b4260f7a408dcfaee8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab4ce0740b8267e86b496c4101ee1a47b7bd39a64178c2b4260f7a408dcfaee8", kill_on_drop: false }` [INFO] [stdout] ab4ce0740b8267e86b496c4101ee1a47b7bd39a64178c2b4260f7a408dcfaee8 [INFO] checking piper-0.2.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate piper 0.2.1 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate piper 0.2.1 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate piper 0.2.1 [INFO] finished tweaking crates.io crate piper 0.2.1 [INFO] tweaked toml for crates.io crate piper 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 324dc0ae585a842b8b10b529b0ef5d086e8583153d88130f2ad77e3f62341cd0 [INFO] running `Command { std: "docker" "start" "-a" "324dc0ae585a842b8b10b529b0ef5d086e8583153d88130f2ad77e3f62341cd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "324dc0ae585a842b8b10b529b0ef5d086e8583153d88130f2ad77e3f62341cd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "324dc0ae585a842b8b10b529b0ef5d086e8583153d88130f2ad77e3f62341cd0", kill_on_drop: false }` [INFO] [stdout] 324dc0ae585a842b8b10b529b0ef5d086e8583153d88130f2ad77e3f62341cd0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 970ee9caf2ebbe341c0f538e20240ebe1d18534d0c24bc1822029556e7452a69 [INFO] running `Command { std: "docker" "start" "-a" "970ee9caf2ebbe341c0f538e20240ebe1d18534d0c24bc1822029556e7452a69", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Checking half v2.4.0 [INFO] [stderr] Compiling polling v2.8.0 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking os_str_bytes v6.6.1 [INFO] [stderr] Checking fastrand v2.0.2 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Compiling rustix v0.37.27 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Compiling async-io v1.13.0 [INFO] [stderr] Checking fastrand v1.9.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking waker-fn v1.1.1 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Checking textwrap v0.16.1 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking async-lock v2.8.0 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking async-task v4.7.0 [INFO] [stderr] Checking easy-parallel v3.3.1 [INFO] [stderr] Checking piper v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/lib.rs:184:5 [INFO] [stdout] | [INFO] [stdout] 184 | use alloc::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.13.0/src/future.rs:469:27 [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err(|_| unreachable!()).unwrap(); [INFO] [stdout] | ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err::(|_| unreachable!()).unwrap(); [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futures-lite` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "970ee9caf2ebbe341c0f538e20240ebe1d18534d0c24bc1822029556e7452a69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "970ee9caf2ebbe341c0f538e20240ebe1d18534d0c24bc1822029556e7452a69", kill_on_drop: false }` [INFO] [stdout] 970ee9caf2ebbe341c0f538e20240ebe1d18534d0c24bc1822029556e7452a69