[INFO] crate async-fetch 0.4.0 is already in cache
[INFO] checking async-fetch-0.4.0 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[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 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--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-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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26412d6c487f7bc0b95c34c26dafed5ea4b4783d8f1ef2a7e5dbd88956e2ffdb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "26412d6c487f7bc0b95c34c26dafed5ea4b4783d8f1ef2a7e5dbd88956e2ffdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26412d6c487f7bc0b95c34c26dafed5ea4b4783d8f1ef2a7e5dbd88956e2ffdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26412d6c487f7bc0b95c34c26dafed5ea4b4783d8f1ef2a7e5dbd88956e2ffdb", kill_on_drop: false }`
[INFO] [stdout] 26412d6c487f7bc0b95c34c26dafed5ea4b4783d8f1ef2a7e5dbd88956e2ffdb
[INFO] running `Command { std: "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 968db6c8ff060445b45abc4acd010289abb65057bc428fdb1559f7f567fe09a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "968db6c8ff060445b45abc4acd010289abb65057bc428fdb1559f7f567fe09a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking async-httplib v0.5.0
[INFO] [stderr]     Checking async-uninet v0.2.0
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking async-fetch v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]   --> tests/lib.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let data = serde_json::json!({ "name": "John" });
[INFO] [stdout]    |                ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]   --> tests/lib.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let name: String = serde_json::from_str(&name.to_string()).unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `send_json` found for struct `async_fetch::Request` in the current scope
[INFO] [stdout]   --> tests/lib.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut res = req.send_json(&data).await.unwrap();
[INFO] [stdout]    |                       ^^^^^^^^^ help: there is an associated function with a similar name: `send_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-fetch`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "968db6c8ff060445b45abc4acd010289abb65057bc428fdb1559f7f567fe09a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968db6c8ff060445b45abc4acd010289abb65057bc428fdb1559f7f567fe09a0", kill_on_drop: false }`
[INFO] [stdout] 968db6c8ff060445b45abc4acd010289abb65057bc428fdb1559f7f567fe09a0