[INFO] fetching crate deser-incomplete 0.1.2...
[INFO] checking deser-incomplete-0.1.2 against master#377656d3dd3f9c23a9c8713e163f4365a5261a84 for pr-146470-4
[INFO] extracting crate deser-incomplete 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate deser-incomplete 0.1.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate deser-incomplete 0.1.2
[INFO] tweaked toml for crates.io crate deser-incomplete 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate deser-incomplete 0.1.2 on toolchain 377656d3dd3f9c23a9c8713e163f4365a5261a84
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate deser-incomplete 0.1.2 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" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3a01a96b62dd3adf7e2e63595aa3d2e785a1f6845a389f04689df62a139e3c9
[INFO] running `Command { std: "docker" "start" "-a" "e3a01a96b62dd3adf7e2e63595aa3d2e785a1f6845a389f04689df62a139e3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3a01a96b62dd3adf7e2e63595aa3d2e785a1f6845a389f04689df62a139e3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a01a96b62dd3adf7e2e63595aa3d2e785a1f6845a389f04689df62a139e3c9", kill_on_drop: false }`
[INFO] [stdout] e3a01a96b62dd3adf7e2e63595aa3d2e785a1f6845a389f04689df62a139e3c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3eedbbd2fa6cea31fd8030a121e33b2999db5bf75858a4e3c4abd90ae858ca0
[INFO] running `Command { std: "docker" "start" "-a" "e3eedbbd2fa6cea31fd8030a121e33b2999db5bf75858a4e3c4abd90ae858ca0", kill_on_drop: false }`
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[INFO] [stderr]     Checking deser-incomplete v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/util.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout]    |              ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout] 12 + ) -> Option<&dyn std::error::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/util.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |         .map(|x| -> &(dyn std::error::Error) { x })
[INFO] [stdout]    |                      ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -         .map(|x| -> &(dyn std::error::Error) { x })
[INFO] [stdout] 16 +         .map(|x| -> &dyn std::error::Error { x })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/util.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout]    |              ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout] 12 + ) -> Option<&dyn std::error::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/util.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |         .map(|x| -> &(dyn std::error::Error) { x })
[INFO] [stdout]    |                      ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -         .map(|x| -> &(dyn std::error::Error) { x })
[INFO] [stdout] 16 +         .map(|x| -> &dyn std::error::Error { x })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomReporter` is never constructed
[INFO] [stdout]    --> src/options_impl.rs:586:12
[INFO] [stdout]     |
[INFO] [stdout] 586 | pub struct CustomReporter<T>(T);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomFallbackProvider` is never constructed
[INFO] [stdout]    --> src/options_impl.rs:595:12
[INFO] [stdout]     |
[INFO] [stdout] 595 | pub struct CustomFallbackProvider<T>(T);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomReporter` is never constructed
[INFO] [stdout]    --> src/options_impl.rs:586:12
[INFO] [stdout]     |
[INFO] [stdout] 586 | pub struct CustomReporter<T>(T);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomFallbackProvider` is never constructed
[INFO] [stdout]    --> src/options_impl.rs:595:12
[INFO] [stdout]     |
[INFO] [stdout] 595 | pub struct CustomFallbackProvider<T>(T);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.73s
[INFO] running `Command { std: "docker" "inspect" "e3eedbbd2fa6cea31fd8030a121e33b2999db5bf75858a4e3c4abd90ae858ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3eedbbd2fa6cea31fd8030a121e33b2999db5bf75858a4e3c4abd90ae858ca0", kill_on_drop: false }`
[INFO] [stdout] e3eedbbd2fa6cea31fd8030a121e33b2999db5bf75858a4e3c4abd90ae858ca0