[INFO] fetching crate mwa_giant_squid 0.4.0...
[INFO] checking mwa_giant_squid-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate mwa_giant_squid 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mwa_giant_squid 0.4.0 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 mwa_giant_squid 0.4.0
[INFO] finished tweaking crates.io crate mwa_giant_squid 0.4.0
[INFO] tweaked toml for crates.io crate mwa_giant_squid 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate mwa_giant_squid 0.4.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 3514dfbc2d9bab4b7d821e1068a4bb828c23331bd64d272e5d2c77543c51035d
[INFO] running `Command { std: "docker" "start" "-a" "3514dfbc2d9bab4b7d821e1068a4bb828c23331bd64d272e5d2c77543c51035d", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c6947645179224be264a8e4de36cb8e95a92588e883310dfea1851dee040be3b
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[INFO] [stdout] warning: field `download_type` is never read
[INFO] [stdout]   --> src/asvo/asvo_serde.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct DummyJobParams {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 31 |     download_type: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DummyJobParams` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `download_type` is never read
[INFO] [stdout]   --> src/asvo/asvo_serde.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct DummyJobParams {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 31 |     download_type: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DummyJobParams` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] running `Command { std: "docker" "inspect" "c6947645179224be264a8e4de36cb8e95a92588e883310dfea1851dee040be3b", kill_on_drop: false }`
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[INFO] [stdout] c6947645179224be264a8e4de36cb8e95a92588e883310dfea1851dee040be3b