[INFO] fetching crate rust-gpu-tools 0.6.2...
[INFO] checking rust-gpu-tools-0.6.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rust-gpu-tools 0.6.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate rust-gpu-tools 0.6.2 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] removed /workspace/builds/worker-1-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate rust-gpu-tools 0.6.2
[INFO] finished tweaking crates.io crate rust-gpu-tools 0.6.2
[INFO] tweaked toml for crates.io crate rust-gpu-tools 0.6.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate rust-gpu-tools 0.6.2 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.41
[INFO] [stderr]   Downloaded quote v1.0.29
[INFO] [stderr]   Downloaded cuda-driver-sys v0.3.0
[INFO] [stderr]   Downloaded rustacuda_core v0.1.2
[INFO] [stderr]   Downloaded temp-env v0.2.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.10
[INFO] [stderr]   Downloaded thiserror-impl v1.0.41
[INFO] [stderr]   Downloaded cuda-config v0.1.0
[INFO] [stderr]   Downloaded opencl3 v0.6.3
[INFO] [stderr]   Downloaded syn v2.0.23
[INFO] [stderr]   Downloaded rustacuda_derive v0.1.2
[INFO] [stderr]   Downloaded fil-rustacuda v0.1.4
[INFO] [stderr]   Downloaded cl-sys v0.4.2
[INFO] [stderr]   Downloaded cl3 v0.6.5
[INFO] [stderr]   Downloaded once_cell v1.17.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.63
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10bf17a82de4a13f0bcd4375b285a42862cb7033f5cf3dcd79af223c0c82bd91
[INFO] running `Command { std: "docker" "start" "-a" "10bf17a82de4a13f0bcd4375b285a42862cb7033f5cf3dcd79af223c0c82bd91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10bf17a82de4a13f0bcd4375b285a42862cb7033f5cf3dcd79af223c0c82bd91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10bf17a82de4a13f0bcd4375b285a42862cb7033f5cf3dcd79af223c0c82bd91", kill_on_drop: false }`
[INFO] [stdout] 10bf17a82de4a13f0bcd4375b285a42862cb7033f5cf3dcd79af223c0c82bd91
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e723c8d1e32468f63257797ac1ce4ce05b8a5ecd04618b4cb0a81a75625f419
[INFO] running `Command { std: "docker" "start" "-a" "6e723c8d1e32468f63257797ac1ce4ce05b8a5ecd04618b4cb0a81a75625f419", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cl-sys v0.4.2
[INFO] [stderr]    Compiling thiserror v1.0.41
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking rustacuda_core v0.1.2
[INFO] [stderr]     Checking once_cell v1.17.2
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking cl3 v0.6.5
[INFO] [stderr]     Checking temp-env v0.2.0
[INFO] [stderr]    Compiling cuda-config v0.1.0
[INFO] [stderr]    Compiling cuda-driver-sys v0.3.0
[INFO] [stderr]     Checking opencl3 v0.6.3
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling rustacuda_derive v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.41
[INFO] [stderr]     Checking fil-rustacuda v0.1.4
[INFO] [stderr]     Checking rust-gpu-tools v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cuda/utils.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct CudaContexts(Vec<rustacuda::context::Context>);
[INFO] [stdout]    |                   ------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct CudaContexts(());
[INFO] [stdout]    |                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cuda/utils.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct CudaContexts(Vec<rustacuda::context::Context>);
[INFO] [stdout]    |                   ------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct CudaContexts(());
[INFO] [stdout]    |                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.99s
[INFO] running `Command { std: "docker" "inspect" "6e723c8d1e32468f63257797ac1ce4ce05b8a5ecd04618b4cb0a81a75625f419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e723c8d1e32468f63257797ac1ce4ce05b8a5ecd04618b4cb0a81a75625f419", kill_on_drop: false }`
[INFO] [stdout] 6e723c8d1e32468f63257797ac1ce4ce05b8a5ecd04618b4cb0a81a75625f419