[INFO] fetching crate below-model 0.7.1... [INFO] checking below-model-0.7.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate below-model 0.7.1 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate below-model 0.7.1 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 below-model 0.7.1 [INFO] finished tweaking crates.io crate below-model 0.7.1 [INFO] tweaked toml for crates.io crate below-model 0.7.1 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 162 packages [INFO] [stderr] Adding below-btrfs v0.7.1 (latest: v0.8.0) [INFO] [stderr] Adding below-common v0.7.1 (latest: v0.8.0) [INFO] [stderr] Adding below-gpu-stats v0.7.1 (latest: v0.8.0) [INFO] [stderr] Adding below_derive v0.7.1 (latest: v0.8.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cgroupfs v0.7.1 (latest: v0.8.0) [INFO] [stderr] Adding crossterm v0.25.0 (latest: v0.27.0) [INFO] [stderr] Adding erased-serde v0.3.31 (latest: v0.4.4) [INFO] [stderr] Adding fb_procfs v0.7.1 (latest: v0.8.0) [INFO] [stderr] Adding futures v0.1.31 (latest: v0.3.30) [INFO] [stderr] Adding hostname v0.3.1 (latest: v0.4.0) [INFO] [stderr] Adding memoffset v0.6.5 (latest: v0.9.1) [INFO] [stderr] Adding nix v0.25.1 (latest: v0.28.0) [INFO] [stderr] Adding redox_syscall v0.4.1 (latest: v0.5.1) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.55.0) [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 slog v2.7.0 [INFO] [stderr] Downloaded threadpool v1.8.1 [INFO] [stderr] Downloaded openat v0.1.21 [INFO] [stderr] Downloaded enumset_derive v0.8.1 [INFO] [stderr] Downloaded fb_procfs v0.7.1 [INFO] [stderr] Downloaded erased-serde v0.3.31 [INFO] [stderr] Downloaded os_info v3.8.2 [INFO] [stderr] Downloaded enum-map-derive v0.17.0 [INFO] [stderr] Downloaded enum-map v2.7.3 [INFO] [stderr] Downloaded enumset v1.1.3 [INFO] [stderr] Downloaded owning_ref v0.4.1 [INFO] [stderr] Downloaded slog-term v2.9.1 [INFO] [stderr] Downloaded below-common v0.7.1 [INFO] [stderr] Downloaded rand_distr v0.4.3 [INFO] [stderr] Downloaded below-btrfs v0.7.1 [INFO] [stderr] Downloaded crossterm v0.25.0 [INFO] [stderr] Downloaded libm v0.2.8 [INFO] [stderr] Downloaded cursive_core v0.3.7 [INFO] [stderr] Downloaded cgroupfs v0.7.1 [INFO] [stderr] Downloaded cursive v0.20.0 [INFO] [stderr] Downloaded nix v0.25.1 [INFO] [stderr] Downloaded xi-unicode v0.3.0 [INFO] [stderr] Downloaded below_derive v0.7.1 [INFO] [stderr] Downloaded below-gpu-stats v0.7.1 [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] e67e45a7bc0cf0076ceb26af005794f744d5b562747badfd1f4a08b6715e8a5f [INFO] running `Command { std: "docker" "start" "-a" "e67e45a7bc0cf0076ceb26af005794f744d5b562747badfd1f4a08b6715e8a5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e67e45a7bc0cf0076ceb26af005794f744d5b562747badfd1f4a08b6715e8a5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e67e45a7bc0cf0076ceb26af005794f744d5b562747badfd1f4a08b6715e8a5f", kill_on_drop: false }` [INFO] [stdout] e67e45a7bc0cf0076ceb26af005794f744d5b562747badfd1f4a08b6715e8a5f [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] 1e93fbfb3d36abcc8d89818c0257a87c253b24bb5011c1e2bb743dd9bae1a393 [INFO] running `Command { std: "docker" "start" "-a" "1e93fbfb3d36abcc8d89818c0257a87c253b24bb5011c1e2bb743dd9bae1a393", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling libm v0.2.8 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling signal-hook v0.3.17 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Compiling time-macros v0.2.17 [INFO] [stderr] Checking num_threads v0.1.7 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling slog v2.7.0 [INFO] [stderr] Checking zerocopy v0.7.32 [INFO] [stderr] Checking owning_ref v0.4.1 [INFO] [stderr] Checking xi-unicode v0.3.0 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking unicode-segmentation v1.11.0 [INFO] [stderr] Checking is-terminal v0.4.12 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking openat v0.1.21 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking nix v0.25.1 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Compiling serde_json v1.0.115 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking match_cfg v0.1.0 [INFO] [stderr] Checking signal-hook-mio v0.2.3 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking crossterm v0.25.0 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking time v0.3.34 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-complex v0.4.5 [INFO] [stderr] Checking rand_distr v0.4.3 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking num v0.4.1 [INFO] [stderr] Compiling darling_core v0.20.8 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling enum-map-derive v0.17.0 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling async-trait v0.1.79 [INFO] [stderr] Compiling below_derive v0.7.1 [INFO] [stderr] Checking enum-map v2.7.3 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Compiling darling_macro v0.20.8 [INFO] [stderr] Checking thiserror v1.0.58 [INFO] [stderr] Compiling darling v0.20.8 [INFO] [stderr] Compiling enumset_derive v0.8.1 [INFO] [stderr] Checking enumset v1.1.3 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Checking cursive_core v0.3.7 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking cursive v0.20.0 [INFO] [stderr] Checking erased-serde v0.3.31 [INFO] [stderr] Checking chrono v0.4.37 [INFO] [stderr] Checking os_info v3.8.2 [INFO] [stderr] Checking fb_procfs v0.7.1 [INFO] [stderr] Checking cgroupfs v0.7.1 [INFO] [stderr] Checking slog-term v2.9.1 [INFO] [stderr] Checking below-common v0.7.1 [INFO] [stderr] Checking below-gpu-stats v0.7.1 [INFO] [stderr] Checking below-btrfs v0.7.1 [INFO] [stderr] Checking below-model v0.7.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `fmt` is imported redundantly [INFO] [stdout] --> src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | open_source_shim!(pub); [INFO] [stdout] | ---------------------- the item `fmt` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `fmt` is imported redundantly [INFO] [stdout] --> src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | open_source_shim!(pub); [INFO] [stdout] | ---------------------- the item `fmt` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromStr` is imported redundantly [INFO] [stdout] --> src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | open_source_shim!(pub); [INFO] [stdout] | ---------------------- the item `FromStr` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromStr` is imported redundantly [INFO] [stdout] --> src/lib.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | open_source_shim!(pub); [INFO] [stdout] | ---------------------- the item `FromStr` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Context` is imported redundantly [INFO] [stdout] --> src/lib.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | use anyhow::Context; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | open_source_shim!(pub); [INFO] [stdout] | ---------------------- the item `Context` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Context` is imported redundantly [INFO] [stdout] --> src/lib.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | use anyhow::Context; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | open_source_shim!(pub); [INFO] [stdout] | ---------------------- the item `Context` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `collector_plugin` is imported redundantly [INFO] [stdout] --> src/collector.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 23 | use super::*; [INFO] [stdout] | -------- the item `collector_plugin` is already imported here [INFO] [stdout] 24 | use crate::collector_plugin; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `collector_plugin` is imported redundantly [INFO] [stdout] --> src/collector.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 23 | use super::*; [INFO] [stdout] | -------- the item `collector_plugin` is already imported here [INFO] [stdout] 24 | use crate::collector_plugin; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromStr` is imported redundantly [INFO] [stdout] --> src/cgroup.rs:910:9 [INFO] [stdout] | [INFO] [stdout] 910 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] 911 | [INFO] [stdout] 912 | use super::*; [INFO] [stdout] | -------- the item `FromStr` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Arc` is imported redundantly [INFO] [stdout] --> src/collector_plugin.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | use super::*; [INFO] [stdout] | -------- the item `Arc` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.14s [INFO] running `Command { std: "docker" "inspect" "1e93fbfb3d36abcc8d89818c0257a87c253b24bb5011c1e2bb743dd9bae1a393", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e93fbfb3d36abcc8d89818c0257a87c253b24bb5011c1e2bb743dd9bae1a393", kill_on_drop: false }` [INFO] [stdout] 1e93fbfb3d36abcc8d89818c0257a87c253b24bb5011c1e2bb743dd9bae1a393