[INFO] fetching crate noah-api 0.4.0...
[INFO] checking noah-api-0.4.0 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate noah-api 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate noah-api 0.4.0 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate noah-api 0.4.0
[INFO] finished tweaking crates.io crate noah-api 0.4.0
[INFO] tweaked toml for crates.io crate noah-api 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate noah-api 0.4.0 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ruc v1.0.8
[INFO] [stderr]   Downloaded rmp v0.8.11
[INFO] [stderr]   Downloaded rmp-serde v1.1.1
[INFO] [stderr]   Downloaded serde_str v0.1.0
[INFO] [stderr]   Downloaded noah-plonk v0.4.0
[INFO] [stderr]   Downloaded generic-array v0.3.2
[INFO] [stderr]   Downloaded ark-ed25519 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded scale-info-derive v2.3.1
[INFO] [stderr]   Downloaded noah-crypto v0.4.0
[INFO] [stderr]   Downloaded polyval v0.6.0
[INFO] [stderr]   Downloaded ark-bulletproofs v4.0.0
[INFO] [stderr]   Downloaded ark-ec v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-ff v0.4.0-alpha.7
[INFO] [stderr]   Downloaded noah-bulletproofs v4.0.0
[INFO] [stderr]   Downloaded parity-scale-codec v3.2.1
[INFO] [stderr]   Downloaded ark-poly v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-ff-macros v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-serialize v0.4.0-alpha.7
[INFO] [stderr]   Downloaded aes-gcm v0.10.1
[INFO] [stderr]   Downloaded noah-curve25519-dalek v4.0.0
[INFO] [stderr]   Downloaded noah-algebra v0.4.0
[INFO] [stderr]   Downloaded ed25519 v1.5.2
[INFO] [stderr]   Downloaded noah-ed25519-dalek v4.0.0
[INFO] [stderr]   Downloaded parity-scale-codec-derive v3.1.3
[INFO] [stderr]   Downloaded scale-info v2.3.1
[INFO] [stderr]   Downloaded bit-array v0.4.4
[INFO] [stderr]   Downloaded ark-algebra-test-templates v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-ed-on-bls12-381 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded ark-ff-asm v0.4.0-alpha.7
[INFO] [stderr]   Downloaded ark-std v0.4.0-alpha
[INFO] [stderr]   Downloaded noah-x25519-dalek v4.0.0
[INFO] [stderr]   Downloaded ark-secp256k1 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded ark-secq256k1 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded ark-bls12-381 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded ark-curve25519 v0.4.0-alpha.2
[INFO] [stderr]   Downloaded ark-serialize-derive v0.4.0-alpha.7
[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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca0f60d097a19177f2daa461f1432fba707463c9a2b1ef35190f52e9282e7ae0
[INFO] running `Command { std: "docker" "start" "-a" "ca0f60d097a19177f2daa461f1432fba707463c9a2b1ef35190f52e9282e7ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca0f60d097a19177f2daa461f1432fba707463c9a2b1ef35190f52e9282e7ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca0f60d097a19177f2daa461f1432fba707463c9a2b1ef35190f52e9282e7ae0", kill_on_drop: false }`
[INFO] [stdout] ca0f60d097a19177f2daa461f1432fba707463c9a2b1ef35190f52e9282e7ae0
[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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 970e84dec53f92d9099aeb0222f9c78722ffff4373f8b550174b6afa24c05c0a
[INFO] running `Command { std: "docker" "start" "-a" "970e84dec53f92d9099aeb0222f9c78722ffff4373f8b550174b6afa24c05c0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 generic-array v0.14.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]    Compiling num-bigint v0.4.3
[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" "970e84dec53f92d9099aeb0222f9c78722ffff4373f8b550174b6afa24c05c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970e84dec53f92d9099aeb0222f9c78722ffff4373f8b550174b6afa24c05c0a", kill_on_drop: false }`
[INFO] [stdout] 970e84dec53f92d9099aeb0222f9c78722ffff4373f8b550174b6afa24c05c0a
