[INFO] fetching crate oxygengine-network-backend-desktop 0.46.1...
[INFO] checking oxygengine-network-backend-desktop-0.46.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate oxygengine-network-backend-desktop 0.46.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate oxygengine-network-backend-desktop 0.46.1 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 oxygengine-network-backend-desktop 0.46.1
[INFO] finished tweaking crates.io crate oxygengine-network-backend-desktop 0.46.1
[INFO] tweaked toml for crates.io crate oxygengine-network-backend-desktop 0.46.1 written to /workspace/builds/worker-1-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 113 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding block-buffer v0.7.3 (latest: v0.10.4)
[INFO] [stderr]       Adding block-padding v0.1.5 (latest: v0.3.3)
[INFO] [stderr]       Adding bytes v0.4.12 (latest: v1.6.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding digest v0.8.1 (latest: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.0.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding intuicio-backend-vm v0.20.5 (latest: v0.31.6)
[INFO] [stderr]       Adding intuicio-core v0.20.5 (latest: v0.31.6)
[INFO] [stderr]       Adding intuicio-data v0.20.5 (latest: v0.31.6)
[INFO] [stderr]       Adding intuicio-derive v0.20.5 (latest: v0.31.6)
[INFO] [stderr]       Adding intuicio-essentials v0.20.5 (latest: v0.31.6)
[INFO] [stderr]       Adding mio v0.6.23 (latest: v0.8.11)
[INFO] [stderr]       Adding miow v0.2.2 (latest: v0.6.0)
[INFO] [stderr]       Adding opaque-debug v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding sha-1 v0.8.2 (latest: v0.10.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml v0.7.8 (latest: v0.8.12)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[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 oxygengine-network v0.46.1
[INFO] [stderr]   Downloaded intuicio-essentials v0.20.5
[INFO] [stderr]   Downloaded oxygengine-core v0.46.1
[INFO] [stderr]   Downloaded intuicio-backend-vm v0.20.5
[INFO] [stderr]   Downloaded intuicio-core v0.20.5
[INFO] [stderr]   Downloaded snailquote v0.3.1
[INFO] [stderr]   Downloaded hecs v0.10.4
[INFO] [stderr]   Downloaded intuicio-data v0.20.5
[INFO] [stderr]   Downloaded ws v0.9.2
[INFO] [stderr]   Downloaded intuicio-derive v0.20.5
[INFO] [stderr]   Downloaded hecs-macros v0.10.0
[INFO] [stderr]   Downloaded typid v1.1.1
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da9ff16000f229158809af03143d13bc81f4a3ccc1f6da4a64abce018f1f8aac
[INFO] running `Command { std: "docker" "start" "-a" "da9ff16000f229158809af03143d13bc81f4a3ccc1f6da4a64abce018f1f8aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da9ff16000f229158809af03143d13bc81f4a3ccc1f6da4a64abce018f1f8aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da9ff16000f229158809af03143d13bc81f4a3ccc1f6da4a64abce018f1f8aac", kill_on_drop: false }`
[INFO] [stdout] da9ff16000f229158809af03143d13bc81f4a3ccc1f6da4a64abce018f1f8aac
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f992a522ebac991db6eb869494e8193f45d744d32edb9a7c2f4f7cd569b855c8
[INFO] running `Command { std: "docker" "start" "-a" "f992a522ebac991db6eb869494e8193f45d744d32edb9a7c2f4f7cd569b855c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling intuicio-derive v0.20.5
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking ws v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling hecs-macros v0.10.0
[INFO] [stderr]     Checking hecs v0.10.4
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]     Checking snailquote v0.3.1
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking typid v1.1.1
[INFO] [stderr]     Checking intuicio-data v0.20.5
[INFO] [stderr]     Checking intuicio-core v0.20.5
[INFO] [stderr]     Checking intuicio-backend-vm v0.20.5
[INFO] [stderr]     Checking intuicio-essentials v0.20.5
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking oxygengine-core v0.46.1
[INFO] [stderr]     Checking oxygengine-network v0.46.1
[INFO] [stderr]     Checking oxygengine-network-backend-desktop v0.46.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BigEndian` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `BigEndian` is already imported here
[INFO] [stdout] 4 | use byteorder::{BigEndian, WriteBytesExt};
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `WriteBytesExt` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `WriteBytesExt` is already imported here
[INFO] [stdout] 4 | use byteorder::{BigEndian, WriteBytesExt};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `Cursor` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     io::Cursor,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `spawn` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::*;
[INFO] [stdout]   |     -------- the item `spawn` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 7 |     thread::{sleep, spawn},
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.28s
[INFO] running `Command { std: "docker" "inspect" "f992a522ebac991db6eb869494e8193f45d744d32edb9a7c2f4f7cd569b855c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f992a522ebac991db6eb869494e8193f45d744d32edb9a7c2f4f7cd569b855c8", kill_on_drop: false }`
[INFO] [stdout] f992a522ebac991db6eb869494e8193f45d744d32edb9a7c2f4f7cd569b855c8