[INFO] fetching crate tts-external-api 0.1.4...
[INFO] testing tts-external-api-0.1.4 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate tts-external-api 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tts-external-api 0.1.4
[INFO] finished tweaking crates.io crate tts-external-api 0.1.4
[INFO] tweaked toml for crates.io crate tts-external-api 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tts-external-api 0.1.4 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 13 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b17b61b42d24b1ef46d1e5ce960a54137ce874e265878da07c622e997440fe92
[INFO] running `Command { std: "docker" "start" "-a" "b17b61b42d24b1ef46d1e5ce960a54137ce874e265878da07c622e997440fe92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b17b61b42d24b1ef46d1e5ce960a54137ce874e265878da07c622e997440fe92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17b61b42d24b1ef46d1e5ce960a54137ce874e265878da07c622e997440fe92", kill_on_drop: false }`
[INFO] [stdout] b17b61b42d24b1ef46d1e5ce960a54137ce874e265878da07c622e997440fe92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 65f56a600cff1fd68307201f85b85d3cf426ba4e0b1bf69dfc8c4741953596ea
[INFO] running `Command { std: "docker" "start" "-a" "65f56a600cff1fd68307201f85b85d3cf426ba4e0b1bf69dfc8c4741953596ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tts-external-api v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `serde`
[INFO] [stdout]  --> src/messages.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::{__private::ser::FlatMapSerializer, ser::SerializeMap};
[INFO] [stdout]   |             ^^^^^^^^^ could not find `__private` in `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tts-external-api` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "65f56a600cff1fd68307201f85b85d3cf426ba4e0b1bf69dfc8c4741953596ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65f56a600cff1fd68307201f85b85d3cf426ba4e0b1bf69dfc8c4741953596ea", kill_on_drop: false }`
[INFO] [stdout] 65f56a600cff1fd68307201f85b85d3cf426ba4e0b1bf69dfc8c4741953596ea