[INFO] fetching crate streaming_serde_json 0.1.2...
[INFO] building streaming_serde_json-0.1.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate streaming_serde_json 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate streaming_serde_json 0.1.2
[INFO] finished tweaking crates.io crate streaming_serde_json 0.1.2
[INFO] tweaked toml for crates.io crate streaming_serde_json 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate streaming_serde_json 0.1.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-chars v3.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ac87864a80925c0910f3fc1f2c3ccd95ef70c747ca6134804a7573adea6c261
[INFO] running `Command { std: "docker" "start" "-a" "4ac87864a80925c0910f3fc1f2c3ccd95ef70c747ca6134804a7573adea6c261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ac87864a80925c0910f3fc1f2c3ccd95ef70c747ca6134804a7573adea6c261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac87864a80925c0910f3fc1f2c3ccd95ef70c747ca6134804a7573adea6c261", kill_on_drop: false }`
[INFO] [stdout] 4ac87864a80925c0910f3fc1f2c3ccd95ef70c747ca6134804a7573adea6c261
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9933de3ea7c6a4e0428c4567ff7bd8302472ea0170da8199c4027d608b25237b
[INFO] running `Command { std: "docker" "start" "-a" "9933de3ea7c6a4e0428c4567ff7bd8302472ea0170da8199c4027d608b25237b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling streaming_serde_json v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "9933de3ea7c6a4e0428c4567ff7bd8302472ea0170da8199c4027d608b25237b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9933de3ea7c6a4e0428c4567ff7bd8302472ea0170da8199c4027d608b25237b", kill_on_drop: false }`
[INFO] [stdout] 9933de3ea7c6a4e0428c4567ff7bd8302472ea0170da8199c4027d608b25237b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e5a8de4fa3b68dfe6f5a9252b88ef582ca4e949afc2cc60370158b84cb237ec
[INFO] running `Command { std: "docker" "start" "-a" "8e5a8de4fa3b68dfe6f5a9252b88ef582ca4e949afc2cc60370158b84cb237ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling utf8-chars v3.0.5
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling streaming_serde_json v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `json_fuzzer`
[INFO] [stdout]   --> src/tests.rs:91:20
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let fuzz = json_fuzzer::fuzz();
[INFO] [stdout]    |                    ^^^^^^^^^^^ use of unresolved module or unlinked crate `json_fuzzer`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `json_fuzzer`, use `cargo add json_fuzzer` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/tests.rs:94:22
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 item.chars().map(|ch| Ok::<_, Infallible>(ch)),
[INFO] [stdout]    |                      ^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `json_fuzzer`
[INFO] [stdout]    --> src/tests.rs:105:20
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let fuzz = json_fuzzer::fuzz();
[INFO] [stdout]     |                    ^^^^^^^^^^^ use of unresolved module or unlinked crate `json_fuzzer`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `json_fuzzer`, use `cargo add json_fuzzer` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/tests.rs:108:22
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 item.chars().map(|ch| Ok::<_, Infallible>(ch)),
[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 `streaming_serde_json` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "8e5a8de4fa3b68dfe6f5a9252b88ef582ca4e949afc2cc60370158b84cb237ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e5a8de4fa3b68dfe6f5a9252b88ef582ca4e949afc2cc60370158b84cb237ec", kill_on_drop: false }`
[INFO] [stdout] 8e5a8de4fa3b68dfe6f5a9252b88ef582ca4e949afc2cc60370158b84cb237ec