[INFO] fetching crate topgrade-rs 10.0.1...
[INFO] testing topgrade-rs-10.0.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate topgrade-rs 10.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate topgrade-rs 10.0.1
[INFO] finished tweaking crates.io crate topgrade-rs 10.0.1
[INFO] tweaked toml for crates.io crate topgrade-rs 10.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate topgrade-rs 10.0.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate topgrade-rs 10.0.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum v0.22.0
[INFO] [stderr]   Downloaded link-cplusplus v1.0.7
[INFO] [stderr]   Downloaded sys-info v0.9.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.79
[INFO] [stderr]   Downloaded parselnk v0.1.1
[INFO] [stderr]   Downloaded mac-notification-sys v0.5.6
[INFO] [stderr]   Downloaded async-executor v1.4.1
[INFO] [stderr]   Downloaded async-channel v1.7.1
[INFO] [stderr]   Downloaded futures-executor v0.3.24
[INFO] [stderr]   Downloaded async-trait v0.1.57
[INFO] [stderr]   Downloaded tauri-winrt-notification v0.1.0
[INFO] [stderr]   Downloaded zvariant v3.7.1
[INFO] [stderr]   Downloaded notify-rust v4.5.10
[INFO] [stderr]   Downloaded zbus v2.3.2
[INFO] [stderr]   Downloaded quick-xml v0.23.1
[INFO] [stderr]   Downloaded webpki-roots v0.22.5
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.79
[INFO] [stderr]   Downloaded cxx-build v1.0.79
[INFO] [stderr]   Downloaded nix v0.23.1
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded rustls v0.20.6
[INFO] [stderr]   Downloaded cxx v1.0.79
[INFO] [stderr]   Downloaded zbus_macros v2.3.2
[INFO] [stderr]   Downloaded zvariant_derive v3.7.1
[INFO] [stderr]   Downloaded nix v0.24.2
[INFO] [stderr]   Downloaded iana-time-zone v0.1.51
[INFO] [stderr]   Downloaded futures v0.3.24
[INFO] [stderr]   Downloaded home v0.5.4
[INFO] [stderr]   Downloaded strum_macros v0.22.0
[INFO] [stderr]   Downloaded cache-padded v1.2.0
[INFO] [stderr]   Downloaded polling v2.3.0
[INFO] [stderr]   Downloaded async-io v1.9.0
[INFO] [stderr]   Downloaded async-recursion v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded serde_repr v0.1.9
[INFO] [stderr]   Downloaded zbus_names v2.2.0
[INFO] [stderr]   Downloaded async-lock v2.5.0
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.4
[INFO] [stderr]   Downloaded self_update v0.30.0
[INFO] [stderr]   Downloaded ordered-stream v0.0.1
[INFO] [stderr]   Downloaded console v0.15.2
[INFO] [stderr]   Downloaded hyper-rustls v0.23.0
[INFO] [stderr]   Downloaded async-broadcast v0.4.1
[INFO] [stderr]   Downloaded uds_windows v1.0.2
[INFO] [stderr]   Downloaded enumflags2 v0.7.5
[INFO] [stderr]   Downloaded scratch v1.0.2
[INFO] [stderr]   Downloaded futures-macro v0.3.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9448d5c9e1f5f3fa62691a881e607683432baf99e90d85e4785bf257632917d6
[INFO] running `Command { std: "docker" "start" "-a" "9448d5c9e1f5f3fa62691a881e607683432baf99e90d85e4785bf257632917d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9448d5c9e1f5f3fa62691a881e607683432baf99e90d85e4785bf257632917d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9448d5c9e1f5f3fa62691a881e607683432baf99e90d85e4785bf257632917d6", kill_on_drop: false }`
[INFO] [stdout] 9448d5c9e1f5f3fa62691a881e607683432baf99e90d85e4785bf257632917d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9b4738018e7c3607fd6821f77c37d226cbe7d9c103f8366953317a8f0a325b6
[INFO] running `Command { std: "docker" "start" "-a" "a9b4738018e7c3607fd6821f77c37d226cbe7d9c103f8366953317a8f0a325b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling futures-sink v0.3.24
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling sys-info v0.9.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling textwrap v0.15.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.51
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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]    Compiling topgrade-rs v10.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling home v0.5.4
[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" "a9b4738018e7c3607fd6821f77c37d226cbe7d9c103f8366953317a8f0a325b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b4738018e7c3607fd6821f77c37d226cbe7d9c103f8366953317a8f0a325b6", kill_on_drop: false }`
[INFO] [stdout] a9b4738018e7c3607fd6821f77c37d226cbe7d9c103f8366953317a8f0a325b6