[INFO] fetching crate serde-double-tag 0.0.4...
[INFO] testing serde-double-tag-0.0.4 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate serde-double-tag 0.0.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate serde-double-tag 0.0.4
[INFO] finished tweaking crates.io crate serde-double-tag 0.0.4
[INFO] tweaked toml for crates.io crate serde-double-tag 0.0.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-double-tag 0.0.4 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding schemars v0.8.22 (available: v1.0.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-double-tag-derive v0.0.4
[INFO] [stderr]   Downloaded assert2-macros v0.3.16
[INFO] [stderr]   Downloaded assert2 v0.3.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 117d62e7434bf8022c2eddd532667493b42f59b12e03d6470ebf457755ec1f77
[INFO] running `Command { std: "docker" "start" "-a" "117d62e7434bf8022c2eddd532667493b42f59b12e03d6470ebf457755ec1f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "117d62e7434bf8022c2eddd532667493b42f59b12e03d6470ebf457755ec1f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "117d62e7434bf8022c2eddd532667493b42f59b12e03d6470ebf457755ec1f77", kill_on_drop: false }`
[INFO] [stdout] 117d62e7434bf8022c2eddd532667493b42f59b12e03d6470ebf457755ec1f77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28de09a4c219e544523348076039cfcc3fdabdfc5d8ca5ca65fe40c633ec1401
[INFO] running `Command { std: "docker" "start" "-a" "28de09a4c219e544523348076039cfcc3fdabdfc5d8ca5ca65fe40c633ec1401", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde-double-tag-derive v0.0.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde-double-tag v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.41s
[INFO] running `Command { std: "docker" "inspect" "28de09a4c219e544523348076039cfcc3fdabdfc5d8ca5ca65fe40c633ec1401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28de09a4c219e544523348076039cfcc3fdabdfc5d8ca5ca65fe40c633ec1401", kill_on_drop: false }`
[INFO] [stdout] 28de09a4c219e544523348076039cfcc3fdabdfc5d8ca5ca65fe40c633ec1401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4e6153748e77b0fd0aa9a95db0116fbb8c69298a65071f75025af556c4c3184
[INFO] running `Command { std: "docker" "start" "-a" "f4e6153748e77b0fd0aa9a95db0116fbb8c69298a65071f75025af556c4c3184", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling assert2-macros v0.3.16
[INFO] [stderr]    Compiling serde-double-tag-derive v0.0.4
[INFO] [stderr]    Compiling serde-double-tag v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling assert2 v0.3.16
[INFO] [stdout] error[E0433]: failed to resolve: could not find `JsonSchema` in `serde_double_tag`
[INFO] [stdout]   --> tests/serialize.rs:11:89
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[derive(serde_double_tag::Serialize, serde_double_tag::Deserialize, serde_double_tag::JsonSchema)]
[INFO] [stdout]    |                                                                                            ^^^^^^^^^^ could not find `JsonSchema` in `serde_double_tag`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 76 | #[cfg(feature = "schemars")]
[INFO] [stdout]    |       -------------------- the item is gated behind the `schemars` feature
[INFO] [stdout] 77 | #[cfg_attr(feature = "doc-cfg", doc(cfg(feature = "schemars")))]
[INFO] [stdout] 78 | pub use serde_double_tag_derive::JsonSchema;
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `JsonSchema` in `serde_double_tag`
[INFO] [stdout]   --> tests/serialize.rs:38:89
[INFO] [stdout]    |
[INFO] [stdout] 38 |     #[derive(serde_double_tag::Serialize, serde_double_tag::Deserialize, serde_double_tag::JsonSchema)]
[INFO] [stdout]    |                                                                                            ^^^^^^^^^^ could not find `JsonSchema` in `serde_double_tag`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 76 | #[cfg(feature = "schemars")]
[INFO] [stdout]    |       -------------------- the item is gated behind the `schemars` feature
[INFO] [stdout] 77 | #[cfg_attr(feature = "doc-cfg", doc(cfg(feature = "schemars")))]
[INFO] [stdout] 78 | pub use serde_double_tag_derive::JsonSchema;
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `JsonSchema` in `serde_double_tag`
[INFO] [stdout]   --> tests/serialize.rs:64:58
[INFO] [stdout]    |
[INFO] [stdout] 64 |     #[derive(serde_double_tag::Serialize, serde_double_tag::JsonSchema)]
[INFO] [stdout]    |                                                             ^^^^^^^^^^ could not find `JsonSchema` in `serde_double_tag`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 76 | #[cfg(feature = "schemars")]
[INFO] [stdout]    |       -------------------- the item is gated behind the `schemars` feature
[INFO] [stdout] 77 | #[cfg_attr(feature = "doc-cfg", doc(cfg(feature = "schemars")))]
[INFO] [stdout] 78 | pub use serde_double_tag_derive::JsonSchema;
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-double-tag` (test "serialize") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "f4e6153748e77b0fd0aa9a95db0116fbb8c69298a65071f75025af556c4c3184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e6153748e77b0fd0aa9a95db0116fbb8c69298a65071f75025af556c4c3184", kill_on_drop: false }`
[INFO] [stdout] f4e6153748e77b0fd0aa9a95db0116fbb8c69298a65071f75025af556c4c3184