[INFO] fetching crate serde-tc-macro 0.4.0...
[INFO] building serde-tc-macro-0.4.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate serde-tc-macro 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate serde-tc-macro 0.4.0
[INFO] finished tweaking crates.io crate serde-tc-macro 0.4.0
[INFO] tweaked toml for crates.io crate serde-tc-macro 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-tc-macro 0.4.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding heck v0.3.3 (available: v0.5.0)
[INFO] [stderr]       Adding proc-macro-crate v0.1.5 (available: v3.4.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c005db6f3bc928e1497c4ccab6d7837f5a3b2f3b99719c5106a7c052bc471673
[INFO] running `Command { std: "docker" "start" "-a" "c005db6f3bc928e1497c4ccab6d7837f5a3b2f3b99719c5106a7c052bc471673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c005db6f3bc928e1497c4ccab6d7837f5a3b2f3b99719c5106a7c052bc471673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c005db6f3bc928e1497c4ccab6d7837f5a3b2f3b99719c5106a7c052bc471673", kill_on_drop: false }`
[INFO] [stdout] c005db6f3bc928e1497c4ccab6d7837f5a3b2f3b99719c5106a7c052bc471673
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab30987d5e8b348da8502da5eda3f0a91cacba83eff360c56c5afe7972e8e088
[INFO] running `Command { std: "docker" "start" "-a" "ab30987d5e8b348da8502da5eda3f0a91cacba83eff360c56c5afe7972e8e088", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling serde-tc-macro v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `encoder` and `dispatcher` are never read
[INFO] [stdout]   --> src/args.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct MacroArgs {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub encoder: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 42 |     pub dispatcher: bool,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MacroArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.45s
[INFO] running `Command { std: "docker" "inspect" "ab30987d5e8b348da8502da5eda3f0a91cacba83eff360c56c5afe7972e8e088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab30987d5e8b348da8502da5eda3f0a91cacba83eff360c56c5afe7972e8e088", kill_on_drop: false }`
[INFO] [stdout] ab30987d5e8b348da8502da5eda3f0a91cacba83eff360c56c5afe7972e8e088
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4e7a7bb60ebb75c210b817586a421a98d68161c8a95be3fde4ffc051b9960c1
[INFO] running `Command { std: "docker" "start" "-a" "d4e7a7bb60ebb75c210b817586a421a98d68161c8a95be3fde4ffc051b9960c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-tc-macro v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `encoder` and `dispatcher` are never read
[INFO] [stdout]   --> src/args.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct MacroArgs {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub encoder: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 42 |     pub dispatcher: bool,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MacroArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `encoder` and `dispatcher` are never read
[INFO] [stdout]   --> src/args.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct MacroArgs {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub encoder: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 42 |     pub dispatcher: bool,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MacroArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "d4e7a7bb60ebb75c210b817586a421a98d68161c8a95be3fde4ffc051b9960c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e7a7bb60ebb75c210b817586a421a98d68161c8a95be3fde4ffc051b9960c1", kill_on_drop: false }`
[INFO] [stdout] d4e7a7bb60ebb75c210b817586a421a98d68161c8a95be3fde4ffc051b9960c1