[INFO] fetching crate openapi-fuzzer 0.2.0...
[INFO] testing openapi-fuzzer-0.2.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate openapi-fuzzer 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate openapi-fuzzer 0.2.0
[INFO] finished tweaking crates.io crate openapi-fuzzer 0.2.0
[INFO] tweaked toml for crates.io crate openapi-fuzzer 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate openapi-fuzzer 0.2.0 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] crate crates.io crate openapi-fuzzer 0.2.0 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.69
[INFO] [stderr]   Downloaded tinyvec v1.1.0
[INFO] [stderr]   Downloaded serde_derive v1.0.152
[INFO] [stderr]   Downloaded argh v0.1.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded arbitrary v1.2.2
[INFO] [stderr]   Downloaded argh_shared v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.69
[INFO] [stderr]   Downloaded anyhow v1.0.37
[INFO] [stderr]   Downloaded bytes v1.3.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.69
[INFO] [stderr]   Downloaded bumpalo v3.4.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] [stderr]   Downloaded libm v0.2.6
[INFO] [stderr]   Downloaded web-sys v0.3.46
[INFO] [stderr]   Downloaded js-sys v0.3.46
[INFO] [stderr]   Downloaded hashbrown v0.12.2
[INFO] [stderr]   Downloaded ureq v2.1.0
[INFO] [stderr]   Downloaded proptest v1.1.0
[INFO] [stderr]   Downloaded security-framework-sys v2.2.0
[INFO] [stderr]   Downloaded serde v1.0.152
[INFO] [stderr]   Downloaded openapiv3 v0.5.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]   Downloaded security-framework v2.2.0
[INFO] [stderr]   Downloaded log v0.4.11
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.69
[INFO] [stderr]   Downloaded argh_derive v0.1.4
[INFO] [stderr]   Downloaded itoa v1.0.5
[INFO] [stderr]   Downloaded rand_core v0.6.2
[INFO] [stderr]   Downloaded redox_syscall v0.2.13
[INFO] [stderr]   Downloaded openapi_utils v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2b08a97b62db1b0896b4e34456aa899dc588c7b5d2ac73ca7cb538d5e307fadf
[INFO] running `Command { std: "docker" "start" "-a" "2b08a97b62db1b0896b4e34456aa899dc588c7b5d2ac73ca7cb538d5e307fadf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b08a97b62db1b0896b4e34456aa899dc588c7b5d2ac73ca7cb538d5e307fadf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b08a97b62db1b0896b4e34456aa899dc588c7b5d2ac73ca7cb538d5e307fadf", kill_on_drop: false }`
[INFO] [stdout] 2b08a97b62db1b0896b4e34456aa899dc588c7b5d2ac73ca7cb538d5e307fadf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 69ba584778ba4ead1a11d7bc5a03aad5229eda82ea1c81592d212ac13db03aa6
[INFO] running `Command { std: "docker" "start" "-a" "69ba584778ba4ead1a11d7bc5a03aad5229eda82ea1c81592d212ac13db03aa6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling hashbrown v0.12.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "69ba584778ba4ead1a11d7bc5a03aad5229eda82ea1c81592d212ac13db03aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ba584778ba4ead1a11d7bc5a03aad5229eda82ea1c81592d212ac13db03aa6", kill_on_drop: false }`
[INFO] [stdout] 69ba584778ba4ead1a11d7bc5a03aad5229eda82ea1c81592d212ac13db03aa6