[INFO] fetching crate async-fetch 0.4.0...
[INFO] checking async-fetch-0.4.0 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate async-fetch 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate async-fetch 0.4.0 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate async-fetch 0.4.0
[INFO] finished tweaking crates.io crate async-fetch 0.4.0
[INFO] tweaked toml for crates.io crate async-fetch 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-uninet v0.2.0
[INFO] [stderr]   Downloaded async-httplib v0.5.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 20ec27a5d96bee2236e59fd5ab125161e9aba353575ae518240b39c936543781
[INFO] running `"docker" "start" "-a" "20ec27a5d96bee2236e59fd5ab125161e9aba353575ae518240b39c936543781"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking async-uninet v0.2.0
[INFO] [stderr]     Checking async-httplib v0.5.0
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking async-fetch v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stderr]   --> tests/lib.rs:22:16
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let data = serde_json::json!({ "name": "John" });
[INFO] [stderr]    |                ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stderr]   --> tests/lib.rs:29:24
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let name: String = serde_json::from_str(&name.to_string()).unwrap();
[INFO] [stderr]    |                        ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `send_json` found for struct `async_fetch::request::Request` in the current scope
[INFO] [stderr]   --> tests/lib.rs:23:23
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut res = req.send_json(&data).await.unwrap();
[INFO] [stderr]    |                       ^^^^^^^^^ help: there is an associated function with a similar name: `send_str`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `async-fetch`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "20ec27a5d96bee2236e59fd5ab125161e9aba353575ae518240b39c936543781"`
[INFO] running `"docker" "rm" "-f" "20ec27a5d96bee2236e59fd5ab125161e9aba353575ae518240b39c936543781"`
[INFO] [stdout] 20ec27a5d96bee2236e59fd5ab125161e9aba353575ae518240b39c936543781