[INFO] fetching crate serde-types 0.1.1...
[INFO] testing serde-types-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate serde-types 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate serde-types 0.1.1
[INFO] finished tweaking crates.io crate serde-types 0.1.1
[INFO] tweaked toml for crates.io crate serde-types 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-types 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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 itertools v0.10.5 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c97bb81c8330d094c91071219a7fa4015a0511b9697f0be26b8ffdfac897a8dd
[INFO] running `Command { std: "docker" "start" "-a" "c97bb81c8330d094c91071219a7fa4015a0511b9697f0be26b8ffdfac897a8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c97bb81c8330d094c91071219a7fa4015a0511b9697f0be26b8ffdfac897a8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c97bb81c8330d094c91071219a7fa4015a0511b9697f0be26b8ffdfac897a8dd", kill_on_drop: false }`
[INFO] [stdout] c97bb81c8330d094c91071219a7fa4015a0511b9697f0be26b8ffdfac897a8dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce6f384e7f5b96f3b254d741387586a41d4e7cb14ead63c18472f4a8bf5bee0d
[INFO] running `Command { std: "docker" "start" "-a" "ce6f384e7f5b96f3b254d741387586a41d4e7cb14ead63c18472f4a8bf5bee0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-types v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `serde`
[INFO] [stdout]  --> src/about_vector/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     __private::de::{Content, ContentRefDeserializer},
[INFO] [stdout]   |     ^^^^^^^^^ could not find `__private` in `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `serde`
[INFO] [stdout]  --> src/parsing/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     __private::de::{Content, ContentDeserializer},
[INFO] [stdout]   |     ^^^^^^^^^ could not find `__private` in `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `__private` in `serde`
[INFO] [stdout]  --> src/parsing/der.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     __private::de::EnumDeserializer,
[INFO] [stdout]   |     ^^^^^^^^^ could not find `__private` in `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/parsing/mod.rs:53:24
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     if k.as_str()? == key {
[INFO] [stdout]    |                        ^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-types` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ce6f384e7f5b96f3b254d741387586a41d4e7cb14ead63c18472f4a8bf5bee0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6f384e7f5b96f3b254d741387586a41d4e7cb14ead63c18472f4a8bf5bee0d", kill_on_drop: false }`
[INFO] [stdout] ce6f384e7f5b96f3b254d741387586a41d4e7cb14ead63c18472f4a8bf5bee0d