[INFO] fetching crate insight 1.4.3...
[INFO] checking insight-1.4.3 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate insight 1.4.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate insight 1.4.3 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate insight 1.4.3
[INFO] finished tweaking crates.io crate insight 1.4.3
[INFO] tweaked toml for crates.io crate insight 1.4.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate insight 1.4.3 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" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded httpdate v1.0.2
[INFO] [stderr]   Downloaded zeroize v1.5.7
[INFO] [stderr]   Downloaded ascii v1.1.0
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[INFO] [stderr]   Downloaded tiny_http v0.12.0
[INFO] [stderr]   Downloaded matches v0.1.9
[INFO] [stderr]   Downloaded zeroize_derive v1.3.2
[INFO] [stderr]   Downloaded chunked_transfer v1.4.0
[INFO] [stderr]   Downloaded email_address v0.2.4
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[INFO] [stderr]   Downloaded rsa v0.7.1
[INFO] [stderr]   Downloaded html-escape v0.2.11
[INFO] [stderr]   Downloaded serde v1.0.147
[INFO] [stderr]   Downloaded nom v7.1.1
[INFO] [stderr]   Downloaded block-buffer v0.10.3
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[INFO] [stderr]   Downloaded wasm-bindgen v0.2.83
[INFO] [stderr]   Downloaded libm v0.2.6
[INFO] [stderr]   Downloaded syn v1.0.103
[INFO] [stderr]   Downloaded bumpalo v3.11.1
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[INFO] [stderr]   Downloaded regex v1.7.0
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[INFO] [stderr]   Downloaded rsa v0.6.1
[INFO] [stderr]   Downloaded cc v1.0.76
[INFO] [stderr]   Downloaded libc v0.2.135
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[INFO] [stderr]   Downloaded digest v0.10.5
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[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded getrandom v0.2.8
[INFO] [stderr]   Downloaded ed25519 v1.5.2
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[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
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[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.83
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[INFO] [stderr]   Downloaded pkcs1 v0.3.3
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[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.83
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[INFO] [stderr]   Downloaded cpufeatures v0.2.5
[INFO] [stderr]   Downloaded generic-array v0.14.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d2ec5a05455d93d55c9071573331baca44488267dc558458f8c758e3ffeb2fe
[INFO] running `Command { std: "docker" "start" "-a" "7d2ec5a05455d93d55c9071573331baca44488267dc558458f8c758e3ffeb2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d2ec5a05455d93d55c9071573331baca44488267dc558458f8c758e3ffeb2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2ec5a05455d93d55c9071573331baca44488267dc558458f8c758e3ffeb2fe", kill_on_drop: false }`
[INFO] [stdout] 7d2ec5a05455d93d55c9071573331baca44488267dc558458f8c758e3ffeb2fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4e1c369e01e6abb90f0d4442773ac83729b62d50887974e942a3b03d5a4ba32
[INFO] running `Command { std: "docker" "start" "-a" "e4e1c369e01e6abb90f0d4442773ac83729b62d50887974e942a3b03d5a4ba32", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking base64ct v1.5.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]     Checking const-oid v0.9.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling cc v1.0.76
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling getrandom v0.1.16
[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" "e4e1c369e01e6abb90f0d4442773ac83729b62d50887974e942a3b03d5a4ba32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4e1c369e01e6abb90f0d4442773ac83729b62d50887974e942a3b03d5a4ba32", kill_on_drop: false }`
[INFO] [stdout] e4e1c369e01e6abb90f0d4442773ac83729b62d50887974e942a3b03d5a4ba32
