[INFO] fetching crate gmt_dos-clients_io 4.3.1...
[INFO] checking gmt_dos-clients_io-4.3.1 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate gmt_dos-clients_io 4.3.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate gmt_dos-clients_io 4.3.1
[INFO] finished tweaking crates.io crate gmt_dos-clients_io 4.3.1
[INFO] tweaked toml for crates.io crate gmt_dos-clients_io 4.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gmt_dos-clients_io 4.3.1 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gmt_dos-clients_io 4.3.1 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69c859ed4428c21af31325a2d05370134371145729279fe5b2a8a4c8b8d0e2f2
[INFO] running `Command { std: "docker" "start" "-a" "69c859ed4428c21af31325a2d05370134371145729279fe5b2a8a4c8b8d0e2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69c859ed4428c21af31325a2d05370134371145729279fe5b2a8a4c8b8d0e2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69c859ed4428c21af31325a2d05370134371145729279fe5b2a8a4c8b8d0e2f2", kill_on_drop: false }`
[INFO] [stdout] 69c859ed4428c21af31325a2d05370134371145729279fe5b2a8a4c8b8d0e2f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70792eb9da67f4b30412954193dc80b88bb0451d26dab1c6e3ff4fb95ea85732
[INFO] running `Command { std: "docker" "start" "-a" "70792eb9da67f4b30412954193dc80b88bb0451d26dab1c6e3ff4fb95ea85732", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.16
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[INFO] [stderr]     Checking gmt_dos-actors-clients_interface v1.5.1
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[INFO] [stderr]    Compiling gmt-fem-code-builder v2.3.8
[INFO] [stderr]    Compiling gmt_dos-clients_io v4.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: gmt_dos-clients_io@4.3.1: the FEM_REPO environment variable is not set, using dummy inputs and outputs instead
[INFO] [stdout] error: struct `DfsFftFrame` is never constructed
[INFO] [stdout]    --> src/optics.rs:155:16
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub struct DfsFftFrame<T: Cuda>(Frame<T>);
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `DfsFftFrame` is never constructed
[INFO] [stdout]    --> src/optics.rs:155:16
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub struct DfsFftFrame<T: Cuda>(Frame<T>);
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: gmt_dos-clients_io@4.3.1: the FEM_REPO environment variable is not set, using dummy inputs and outputs instead
[INFO] [stderr] error: could not compile `gmt_dos-clients_io` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: gmt_dos-clients_io@4.3.1: the FEM_REPO environment variable is not set, using dummy inputs and outputs instead
[INFO] [stderr] error: could not compile `gmt_dos-clients_io` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "70792eb9da67f4b30412954193dc80b88bb0451d26dab1c6e3ff4fb95ea85732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70792eb9da67f4b30412954193dc80b88bb0451d26dab1c6e3ff4fb95ea85732", kill_on_drop: false }`
[INFO] [stdout] 70792eb9da67f4b30412954193dc80b88bb0451d26dab1c6e3ff4fb95ea85732
