[INFO] fetching crate serde-tc-macro 0.4.0...
[INFO] testing serde-tc-macro-0.4.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate serde-tc-macro 0.4.0 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-tc-macro 0.4.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04b079913a981595d7790b8b271918ade1ee4c6364f10a3a9dbb5cab0d1dd9d6
[INFO] running `Command { std: "docker" "start" "-a" "04b079913a981595d7790b8b271918ade1ee4c6364f10a3a9dbb5cab0d1dd9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04b079913a981595d7790b8b271918ade1ee4c6364f10a3a9dbb5cab0d1dd9d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04b079913a981595d7790b8b271918ade1ee4c6364f10a3a9dbb5cab0d1dd9d6", kill_on_drop: false }`
[INFO] [stdout] 04b079913a981595d7790b8b271918ade1ee4c6364f10a3a9dbb5cab0d1dd9d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da3c2d17bd47202f8876ed6e87485a52f6f80ca73eb2d3ee7587881e76bb1e53
[INFO] running `Command { std: "docker" "start" "-a" "da3c2d17bd47202f8876ed6e87485a52f6f80ca73eb2d3ee7587881e76bb1e53", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling heck v0.3.3
[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 8.44s
[INFO] running `Command { std: "docker" "inspect" "da3c2d17bd47202f8876ed6e87485a52f6f80ca73eb2d3ee7587881e76bb1e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da3c2d17bd47202f8876ed6e87485a52f6f80ca73eb2d3ee7587881e76bb1e53", kill_on_drop: false }`
[INFO] [stdout] da3c2d17bd47202f8876ed6e87485a52f6f80ca73eb2d3ee7587881e76bb1e53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b003c1d7df3237b8a1c66482141c677087867c49698cabe11b6f56d51640a85
[INFO] running `Command { std: "docker" "start" "-a" "3b003c1d7df3237b8a1c66482141c677087867c49698cabe11b6f56d51640a85", 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 0.77s
[INFO] running `Command { std: "docker" "inspect" "3b003c1d7df3237b8a1c66482141c677087867c49698cabe11b6f56d51640a85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b003c1d7df3237b8a1c66482141c677087867c49698cabe11b6f56d51640a85", kill_on_drop: false }`
[INFO] [stdout] 3b003c1d7df3237b8a1c66482141c677087867c49698cabe11b6f56d51640a85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb110494e717d3eb4f8e239e26f51e630f111a89e028b9db65fbae1741700e4c
[INFO] running `Command { std: "docker" "start" "-a" "eb110494e717d3eb4f8e239e26f51e630f111a89e028b9db65fbae1741700e4c", kill_on_drop: false }`
[INFO] [stderr] warning: fields `encoder` and `dispatcher` are never read
[INFO] [stderr]   --> src/args.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub struct MacroArgs {
[INFO] [stderr]    |            --------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 41 |     pub encoder: bool,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 42 |     pub dispatcher: bool,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MacroArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `serde-tc-macro` (lib) generated 1 warning
[INFO] [stderr] warning: `serde-tc-macro` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_tc_macro-e72f2e431e4987b4)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test helper::recognize_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_tc_macro
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb110494e717d3eb4f8e239e26f51e630f111a89e028b9db65fbae1741700e4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb110494e717d3eb4f8e239e26f51e630f111a89e028b9db65fbae1741700e4c", kill_on_drop: false }`
[INFO] [stdout] eb110494e717d3eb4f8e239e26f51e630f111a89e028b9db65fbae1741700e4c