[INFO] fetching crate deser-incomplete 0.1.2...
[INFO] checking deser-incomplete-0.1.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate deser-incomplete 0.1.2 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate deser-incomplete 0.1.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3b0f4c5ba1895f78ebb97cb5ac7a51394a109056563b31d6b27bf2b91509832
[INFO] running `Command { std: "docker" "start" "-a" "d3b0f4c5ba1895f78ebb97cb5ac7a51394a109056563b31d6b27bf2b91509832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3b0f4c5ba1895f78ebb97cb5ac7a51394a109056563b31d6b27bf2b91509832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b0f4c5ba1895f78ebb97cb5ac7a51394a109056563b31d6b27bf2b91509832", kill_on_drop: false }`
[INFO] [stdout] d3b0f4c5ba1895f78ebb97cb5ac7a51394a109056563b31d6b27bf2b91509832
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c25dc5a48eb0cef1b86c8e63e8c4a6624e9df9f9fb4f107d2709449a575f54b
[INFO] running `Command { std: "docker" "start" "-a" "6c25dc5a48eb0cef1b86c8e63e8c4a6624e9df9f9fb4f107d2709449a575f54b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
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[INFO] [stderr]     Checking deser-incomplete v0.1.2 (/opt/rustwide/workdir)
[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)]` 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)]` 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 1m 05s
[INFO] running `Command { std: "docker" "inspect" "6c25dc5a48eb0cef1b86c8e63e8c4a6624e9df9f9fb4f107d2709449a575f54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c25dc5a48eb0cef1b86c8e63e8c4a6624e9df9f9fb4f107d2709449a575f54b", kill_on_drop: false }`
[INFO] [stdout] 6c25dc5a48eb0cef1b86c8e63e8c4a6624e9df9f9fb4f107d2709449a575f54b