[INFO] fetching crate videostream 0.6.5...
[INFO] checking videostream-0.6.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate videostream 0.6.5 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate videostream 0.6.5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate videostream 0.6.5
[INFO] finished tweaking crates.io crate videostream 0.6.5
[INFO] tweaked toml for crates.io crate videostream 0.6.5 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 58 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding dma-buf v0.3.1 (latest: v0.4.0)
[INFO] [stderr]       Adding nix v0.27.1 (latest: v0.28.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding serial_test v2.0.0 (latest: v3.0.0)
[INFO] [stderr]       Adding serial_test_derive v2.0.0 (latest: v3.0.0)
[INFO] [stderr]       Adding unix-ts v0.6.0 (latest: v1.0.0)
[INFO] [stderr]       Adding unix-ts-macros v0.4.0 (latest: v1.0.0)
[INFO] [stderr]       Adding videostream-sys v0.6.5 (latest: v0.7.1)
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded readme-rustdocifier v0.1.1
[INFO] [stderr]   Downloaded serial_test_derive v2.0.0
[INFO] [stderr]   Downloaded memmap2 v0.9.4
[INFO] [stderr]   Downloaded serial_test v2.0.0
[INFO] [stderr]   Downloaded unix-ts-macros v0.4.0
[INFO] [stderr]   Downloaded unix-ts v0.6.0
[INFO] [stderr]   Downloaded dma-buf v0.3.1
[INFO] [stderr]   Downloaded videostream-sys v0.6.5
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 858998c8f80d51a3492bc869393ced719291de3d1cc893ed9766a6f32b8be1e8
[INFO] running `Command { std: "docker" "start" "-a" "858998c8f80d51a3492bc869393ced719291de3d1cc893ed9766a6f32b8be1e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "858998c8f80d51a3492bc869393ced719291de3d1cc893ed9766a6f32b8be1e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "858998c8f80d51a3492bc869393ced719291de3d1cc893ed9766a6f32b8be1e8", kill_on_drop: false }`
[INFO] [stdout] 858998c8f80d51a3492bc869393ced719291de3d1cc893ed9766a6f32b8be1e8
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7194a0e900e6abf3932b7881ac7f202ebbc450d550657e5ba573d789e32298d
[INFO] running `Command { std: "docker" "start" "-a" "c7194a0e900e6abf3932b7881ac7f202ebbc450d550657e5ba573d789e32298d", kill_on_drop: false }`
[INFO] [stderr]    Compiling readme-rustdocifier v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]    Compiling videostream-sys v0.6.5
[INFO] [stderr]     Checking memmap2 v0.9.4
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling serial_test_derive v2.0.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]    Compiling unix-ts-macros v0.4.0
[INFO] [stderr]    Compiling unix-ts v0.6.0
[INFO] [stderr]     Checking dma-buf v0.3.1
[INFO] [stderr]     Checking videostream v0.6.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/fourcc.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::{fmt, result::Result};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` 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 futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serial_test v2.0.0
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/frame.rs:263:16
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use rand::{self, Rng};
[INFO] [stdout]     |                ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRawFd` is imported redundantly
[INFO] [stdout]    --> src/frame.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     use super::*;
[INFO] [stdout]     |         -------- the item `AsRawFd` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 267 |         os::fd::AsRawFd,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]   --> src/host.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     use super::*;
[INFO] [stdout]    |         -------- the item `PathBuf` is already imported here
[INFO] [stdout] 61 |     use std::path::PathBuf;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/fourcc.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::{fmt, result::Result};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.81s
[INFO] running `Command { std: "docker" "inspect" "c7194a0e900e6abf3932b7881ac7f202ebbc450d550657e5ba573d789e32298d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7194a0e900e6abf3932b7881ac7f202ebbc450d550657e5ba573d789e32298d", kill_on_drop: false }`
[INFO] [stdout] c7194a0e900e6abf3932b7881ac7f202ebbc450d550657e5ba573d789e32298d