[INFO] fetching crate serde-indexed 0.2.0...
[INFO] building serde-indexed-0.2.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate serde-indexed 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate serde-indexed 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde-indexed 0.2.0
[INFO] tweaked toml for crates.io crate serde-indexed 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-indexed 0.2.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.9.1)
[INFO] [stderr]       Adding hex-literal v0.4.1 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] becbd1133f2c203d711d961b46d7d2a2b963fc5f201f83e4dce08eb379913828
[INFO] running `Command { std: "docker" "start" "-a" "becbd1133f2c203d711d961b46d7d2a2b963fc5f201f83e4dce08eb379913828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "becbd1133f2c203d711d961b46d7d2a2b963fc5f201f83e4dce08eb379913828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "becbd1133f2c203d711d961b46d7d2a2b963fc5f201f83e4dce08eb379913828", kill_on_drop: false }`
[INFO] [stdout] becbd1133f2c203d711d961b46d7d2a2b963fc5f201f83e4dce08eb379913828
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1774f4b496c7ac4db9822712c18cd4244d6ffa983aff2fd3720318aac56aa46
[INFO] running `Command { std: "docker" "start" "-a" "a1774f4b496c7ac4db9822712c18cd4244d6ffa983aff2fd3720318aac56aa46", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-indexed v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "a1774f4b496c7ac4db9822712c18cd4244d6ffa983aff2fd3720318aac56aa46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1774f4b496c7ac4db9822712c18cd4244d6ffa983aff2fd3720318aac56aa46", kill_on_drop: false }`
[INFO] [stdout] a1774f4b496c7ac4db9822712c18cd4244d6ffa983aff2fd3720318aac56aa46
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf4c72b1f4989c66d29a1fcef052ab521984dadc72947b04a2342c093668424
[INFO] running `Command { std: "docker" "start" "-a" "ecf4c72b1f4989c66d29a1fcef052ab521984dadc72947b04a2342c093668424", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling hex-literal v0.4.1
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling serde_test v1.0.177
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde-indexed v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NakedOption` is never constructed
[INFO] [stdout]   --> tests/basics.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub struct NakedOption {
[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 `NakedRefOption` is never constructed
[INFO] [stdout]   --> tests/basics.rs:83:16
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub struct NakedRefOption<'a, 'b, 'c> {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EmptyStruct` is never constructed
[INFO] [stdout]   --> tests/basics.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub struct EmptyStruct {}
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "ecf4c72b1f4989c66d29a1fcef052ab521984dadc72947b04a2342c093668424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf4c72b1f4989c66d29a1fcef052ab521984dadc72947b04a2342c093668424", kill_on_drop: false }`
[INFO] [stdout] ecf4c72b1f4989c66d29a1fcef052ab521984dadc72947b04a2342c093668424