[INFO] fetching crate rfb 0.1.0...
[INFO] checking rfb-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate rfb 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rfb 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rfb 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rfb 0.1.0
[INFO] tweaked toml for crates.io crate rfb 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate rfb 0.1.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lebe v0.5.1
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[INFO] [stderr]   Downloaded tiff v0.7.2
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[INFO] [stdout] cddde0df9dfeb32aea057e25767dcb125f321c50c43d74adbf556860111d1957
[INFO] running `Command { std: "docker" "start" "-a" "cddde0df9dfeb32aea057e25767dcb125f321c50c43d74adbf556860111d1957", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "cddde0df9dfeb32aea057e25767dcb125f321c50c43d74adbf556860111d1957", kill_on_drop: false }`
[INFO] [stdout] cddde0df9dfeb32aea057e25767dcb125f321c50c43d74adbf556860111d1957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] baedac4adaeca3be0965e7b77ee8b2217ea21f1f10d85805105b5c5ef8ed2af8
[INFO] running `Command { std: "docker" "start" "-a" "baedac4adaeca3be0965e7b77ee8b2217ea21f1f10d85805105b5c5ef8ed2af8", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
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[INFO] [stderr]    Compiling rayon-core v1.9.1
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[INFO] [stderr]    Compiling rayon v1.5.1
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/keysym/mod.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Unknown(u32),
[INFO] [stdout]    |     ------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Keysym` 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] 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] 11 |     Unknown(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/keysym/mod.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Utf32(char),
[INFO] [stdout]    |     ----- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Keysym` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 12 |     Utf32(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/keysym/mod.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |     FunctionKey(u8),
[INFO] [stdout]    |     ----------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Keysym` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 27 |     FunctionKey(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/keysym/mod.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Unknown(u32),
[INFO] [stdout]    |     ------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Keysym` 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] 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] 11 |     Unknown(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/keysym/mod.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Utf32(char),
[INFO] [stdout]    |     ----- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Keysym` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 12 |     Utf32(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/keysym/mod.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |     FunctionKey(u8),
[INFO] [stdout]    |     ----------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Keysym` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 27 |     FunctionKey(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.58s
[INFO] running `Command { std: "docker" "inspect" "baedac4adaeca3be0965e7b77ee8b2217ea21f1f10d85805105b5c5ef8ed2af8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baedac4adaeca3be0965e7b77ee8b2217ea21f1f10d85805105b5c5ef8ed2af8", kill_on_drop: false }`
[INFO] [stdout] baedac4adaeca3be0965e7b77ee8b2217ea21f1f10d85805105b5c5ef8ed2af8