[INFO] fetching crate backroll 0.6.0... [INFO] checking backroll-0.6.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate backroll 0.6.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate backroll 0.6.0 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 backroll 0.6.0 [INFO] finished tweaking crates.io crate backroll 0.6.0 [INFO] tweaked toml for crates.io crate backroll 0.6.0 written to /workspace/builds/worker-6-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 85 packages [INFO] [stderr] Adding async-channel v1.9.0 (latest: v2.2.0) [INFO] [stderr] Adding bevy_tasks v0.9.1 (latest: v0.13.1) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding concurrent-queue v1.2.4 (latest: v2.4.0) [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 redox_syscall v0.4.1 (latest: v0.5.1) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [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 varinteger v1.0.6 [INFO] [stderr] Downloaded backroll_transport v0.2.0 [INFO] [stderr] Downloaded cache-padded v1.3.0 [INFO] [stderr] Downloaded bevy_tasks v0.9.1 [INFO] [stderr] Downloaded dashmap v5.5.3 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 543a3238a91d4a8e11864107f199f355bad96220d2c360356746d01c32e41001 [INFO] running `Command { std: "docker" "start" "-a" "543a3238a91d4a8e11864107f199f355bad96220d2c360356746d01c32e41001", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "543a3238a91d4a8e11864107f199f355bad96220d2c360356746d01c32e41001", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "543a3238a91d4a8e11864107f199f355bad96220d2c360356746d01c32e41001", kill_on_drop: false }` [INFO] [stdout] 543a3238a91d4a8e11864107f199f355bad96220d2c360356746d01c32e41001 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 52de996a2c317ad6c650f659eb13833c877d39eca56672c761c01baa68062ead [INFO] running `Command { std: "docker" "start" "-a" "52de996a2c317ad6c650f659eb13833c877d39eca56672c761c01baa68062ead", kill_on_drop: false }` [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking async-task v4.7.0 [INFO] [stderr] Checking cache-padded v1.3.0 [INFO] [stderr] Checking concurrent-queue v1.2.4 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Checking bytemuck v1.15.0 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stderr] Checking varinteger v1.0.6 [INFO] [stderr] Checking async-lock v3.3.0 [INFO] [stderr] Checking futures-timer v3.0.3 [INFO] [stderr] Checking dashmap v5.5.3 [INFO] [stderr] Checking async-executor v1.9.1 [INFO] [stderr] Checking backroll_transport v0.2.0 [INFO] [stderr] Checking bevy_tasks v0.9.1 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking thiserror v1.0.58 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking backroll v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/input.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/time_sync.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/input.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Pod` is imported redundantly [INFO] [stdout] --> src/protocol/compression.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 112 | use super::*; [INFO] [stdout] | -------- the item `Pod` is already imported here [INFO] [stdout] 113 | use bytemuck::{Pod, Zeroable}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/time_sync.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.99s [INFO] running `Command { std: "docker" "inspect" "52de996a2c317ad6c650f659eb13833c877d39eca56672c761c01baa68062ead", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52de996a2c317ad6c650f659eb13833c877d39eca56672c761c01baa68062ead", kill_on_drop: false }` [INFO] [stdout] 52de996a2c317ad6c650f659eb13833c877d39eca56672c761c01baa68062ead [INFO] checking backroll-0.6.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate backroll 0.6.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate backroll 0.6.0 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 backroll 0.6.0 [INFO] finished tweaking crates.io crate backroll 0.6.0 [INFO] tweaked toml for crates.io crate backroll 0.6.0 written to /workspace/builds/worker-6-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] [stderr] Blocking waiting for file lock on package cache [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 735ab97e1be67e5ebdc8d40865dddfa4674d2abfb101f2560c4a9736728a6e17 [INFO] running `Command { std: "docker" "start" "-a" "735ab97e1be67e5ebdc8d40865dddfa4674d2abfb101f2560c4a9736728a6e17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "735ab97e1be67e5ebdc8d40865dddfa4674d2abfb101f2560c4a9736728a6e17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "735ab97e1be67e5ebdc8d40865dddfa4674d2abfb101f2560c4a9736728a6e17", kill_on_drop: false }` [INFO] [stdout] 735ab97e1be67e5ebdc8d40865dddfa4674d2abfb101f2560c4a9736728a6e17 [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3cec24bebc7a2b4c2d51da865b2254157a605532cbcf7738075a2104e061f7ec [INFO] running `Command { std: "docker" "start" "-a" "3cec24bebc7a2b4c2d51da865b2254157a605532cbcf7738075a2104e061f7ec", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking cache-padded v1.3.0 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking async-task v4.7.0 [INFO] [stderr] Checking fastrand v1.9.0 [INFO] [stderr] Checking waker-fn v1.1.1 [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking fastrand v2.0.2 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking concurrent-queue v1.2.4 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stderr] Checking async-lock v3.3.0 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Checking rand v0.8.5 [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 dashmap v5.5.3 [INFO] [stderr] Checking async-executor v1.9.1 [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] Checking backroll_transport v0.2.0 [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" "3cec24bebc7a2b4c2d51da865b2254157a605532cbcf7738075a2104e061f7ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3cec24bebc7a2b4c2d51da865b2254157a605532cbcf7738075a2104e061f7ec", kill_on_drop: false }` [INFO] [stdout] 3cec24bebc7a2b4c2d51da865b2254157a605532cbcf7738075a2104e061f7ec