[INFO] fetching crate serde-indexed 0.2.0...
[INFO] building serde-indexed-0.2.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate serde-indexed 0.2.0 into /workspace/builds/worker-2-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-indexed 0.2.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c4972d3a23cd61d748ae00818ccfa5a7ac92e6316ef2c37d1282519e7746fde
[INFO] running `Command { std: "docker" "start" "-a" "6c4972d3a23cd61d748ae00818ccfa5a7ac92e6316ef2c37d1282519e7746fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c4972d3a23cd61d748ae00818ccfa5a7ac92e6316ef2c37d1282519e7746fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c4972d3a23cd61d748ae00818ccfa5a7ac92e6316ef2c37d1282519e7746fde", kill_on_drop: false }`
[INFO] [stdout] 6c4972d3a23cd61d748ae00818ccfa5a7ac92e6316ef2c37d1282519e7746fde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d9b3b416718e9d28b3c647e9f83d01e774d55c95509a52ad5b28680cb32c02c
[INFO] running `Command { std: "docker" "start" "-a" "9d9b3b416718e9d28b3c647e9f83d01e774d55c95509a52ad5b28680cb32c02c", 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 0.84s
[INFO] running `Command { std: "docker" "inspect" "9d9b3b416718e9d28b3c647e9f83d01e774d55c95509a52ad5b28680cb32c02c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9b3b416718e9d28b3c647e9f83d01e774d55c95509a52ad5b28680cb32c02c", kill_on_drop: false }`
[INFO] [stdout] 9d9b3b416718e9d28b3c647e9f83d01e774d55c95509a52ad5b28680cb32c02c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69e99a3107cd9406a5c853ef2720f06e2fd3f2ca571b3847f243c2ed673458cb
[INFO] running `Command { std: "docker" "start" "-a" "69e99a3107cd9406a5c853ef2720f06e2fd3f2ca571b3847f243c2ed673458cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling hex-literal v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling serde_test v1.0.177
[INFO] [stderr]    Compiling spin v0.9.8
[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 5.35s
[INFO] running `Command { std: "docker" "inspect" "69e99a3107cd9406a5c853ef2720f06e2fd3f2ca571b3847f243c2ed673458cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69e99a3107cd9406a5c853ef2720f06e2fd3f2ca571b3847f243c2ed673458cb", kill_on_drop: false }`
[INFO] [stdout] 69e99a3107cd9406a5c853ef2720f06e2fd3f2ca571b3847f243c2ed673458cb