[INFO] fetching crate rating 0.1.0...
[INFO] testing rating-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate rating 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate rating 0.1.0
[INFO] finished tweaking crates.io crate rating 0.1.0
[INFO] tweaked toml for crates.io crate rating 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rating 0.1.0 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 rating 0.1.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded test-case-macros v3.0.0
[INFO] [stderr]   Downloaded rust_decimal_macros v1.28.1
[INFO] [stderr]   Downloaded bytecheck_derive v0.6.10
[INFO] [stderr]   Downloaded test-case v3.0.0
[INFO] [stderr]   Downloaded bytecheck v0.6.10
[INFO] [stderr]   Downloaded borsh-derive-internal v0.10.2
[INFO] [stderr]   Downloaded rkyv_derive v0.7.40
[INFO] [stderr]   Downloaded borsh v0.10.2
[INFO] [stderr]   Downloaded borsh-schema-derive-internal v0.10.2
[INFO] [stderr]   Downloaded rkyv v0.7.40
[INFO] [stderr]   Downloaded rust_decimal v1.28.1
[INFO] [stderr]   Downloaded borsh-derive v0.10.2
[INFO] [stderr]   Downloaded test-case-core v3.0.0
[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] aa525964857b04b0851409bbc8675acfa3195ffdc806ee2fbadf452091837942
[INFO] running `Command { std: "docker" "start" "-a" "aa525964857b04b0851409bbc8675acfa3195ffdc806ee2fbadf452091837942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa525964857b04b0851409bbc8675acfa3195ffdc806ee2fbadf452091837942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa525964857b04b0851409bbc8675acfa3195ffdc806ee2fbadf452091837942", kill_on_drop: false }`
[INFO] [stdout] aa525964857b04b0851409bbc8675acfa3195ffdc806ee2fbadf452091837942
[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] 5484282b5728c9cf506681fdfe991a626c6c0aa736544fecd8fdd77b922b127d
[INFO] running `Command { std: "docker" "start" "-a" "5484282b5728c9cf506681fdfe991a626c6c0aa736544fecd8fdd77b922b127d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling rust_decimal v1.28.1
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] [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" "5484282b5728c9cf506681fdfe991a626c6c0aa736544fecd8fdd77b922b127d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5484282b5728c9cf506681fdfe991a626c6c0aa736544fecd8fdd77b922b127d", kill_on_drop: false }`
[INFO] [stdout] 5484282b5728c9cf506681fdfe991a626c6c0aa736544fecd8fdd77b922b127d