[INFO] fetching crate eight-serve 1.0.1...
[INFO] testing eight-serve-1.0.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate eight-serve 1.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate eight-serve 1.0.1
[INFO] finished tweaking crates.io crate eight-serve 1.0.1
[INFO] tweaked toml for crates.io crate eight-serve 1.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate eight-serve 1.0.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate eight-serve 1.0.1 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded eight v1.0.0-alpha.2
[INFO] [stderr]   Downloaded tokio-tungstenite v0.18.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.34
[INFO] [stderr]   Downloaded clap_lex v0.5.0
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded anstyle v1.0.0
[INFO] [stderr]   Downloaded anstyle-wincon v1.0.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.24
[INFO] [stderr]   Downloaded anstyle-parse v0.2.0
[INFO] [stderr]   Downloaded anstream v0.3.0
[INFO] [stderr]   Downloaded clap v4.3.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.87
[INFO] [stderr]   Downloaded tungstenite v0.18.0
[INFO] [stderr]   Downloaded clap_derive v4.3.0
[INFO] [stderr]   Downloaded reqwest v0.11.16
[INFO] [stderr]   Downloaded matchit v0.7.0
[INFO] [stderr]   Downloaded rustversion v1.0.12
[INFO] [stderr]   Downloaded clap_builder v4.3.0
[INFO] [stderr]   Downloaded axum v0.6.16
[INFO] [stderr]   Downloaded openssl v0.10.52
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.11
[INFO] [stderr]   Downloaded rustix v0.37.14
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 300d84827c860917ee9178b1c99371607cc9ebe431609d8035596a8e0fb9dc0b
[INFO] running `Command { std: "docker" "start" "-a" "300d84827c860917ee9178b1c99371607cc9ebe431609d8035596a8e0fb9dc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "300d84827c860917ee9178b1c99371607cc9ebe431609d8035596a8e0fb9dc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300d84827c860917ee9178b1c99371607cc9ebe431609d8035596a8e0fb9dc0b", kill_on_drop: false }`
[INFO] [stdout] 300d84827c860917ee9178b1c99371607cc9ebe431609d8035596a8e0fb9dc0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a267ad790db9ed6cf6349a441004fa3f7779b0321389e6db51782e79a68b4fce
[INFO] running `Command { std: "docker" "start" "-a" "a267ad790db9ed6cf6349a441004fa3f7779b0321389e6db51782e79a68b4fce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling openssl v0.10.52
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling rustix v0.37.14
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling digest v0.10.6
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling cpufeatures v0.2.7
[INFO] [stderr]    Compiling linux-raw-sys v0.3.4
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]    Compiling axum v0.6.16
[INFO] [stderr]    Compiling base64 v0.21.0
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[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" "a267ad790db9ed6cf6349a441004fa3f7779b0321389e6db51782e79a68b4fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a267ad790db9ed6cf6349a441004fa3f7779b0321389e6db51782e79a68b4fce", kill_on_drop: false }`
[INFO] [stdout] a267ad790db9ed6cf6349a441004fa3f7779b0321389e6db51782e79a68b4fce