[INFO] fetching crate c2rust 0.18.0...
[INFO] checking c2rust-0.18.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate c2rust 0.18.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate c2rust 0.18.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate c2rust 0.18.0
[INFO] finished tweaking crates.io crate c2rust 0.18.0
[INFO] tweaked toml for crates.io crate c2rust 0.18.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate c2rust 0.18.0 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.8.1
[INFO] [stderr]   Downloaded is_executable v1.0.1
[INFO] [stderr]   Downloaded regex-syntax v0.7.1
[INFO] [stderr]   Downloaded os_str_bytes v6.5.0
[INFO] [stderr]   Downloaded handlebars v4.3.7
[INFO] [stderr]   Downloaded serde_bencode v0.2.3
[INFO] [stderr]   Downloaded clap_derive v3.2.25
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded prettyplease v0.2.5
[INFO] [stderr]   Downloaded syn v2.0.16
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded bindgen v0.65.1
[INFO] [stderr]   Downloaded print_bytes v1.2.0
[INFO] [stderr]   Downloaded c2rust-build-paths v0.18.0
[INFO] [stderr]   Downloaded c2rust-bitfields-derive v0.18.0
[INFO] [stderr]   Downloaded c2rust-bitfields v0.18.0
[INFO] [stderr]   Downloaded dtoa v1.0.6
[INFO] [stderr]   Downloaded addr2line v0.19.0
[INFO] [stderr]   Downloaded fern v0.6.2
[INFO] [stderr]   Downloaded pest v2.6.0
[INFO] [stderr]   Downloaded pest_meta v2.6.0
[INFO] [stderr]   Downloaded pest_generator v2.6.0
[INFO] [stderr]   Downloaded pest_derive v2.6.0
[INFO] [stderr]   Downloaded log-reroute v0.1.8
[INFO] [stderr]   Downloaded serde_bytes v0.11.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.57
[INFO] [stderr]   Downloaded time v0.3.18
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded git-testament-derive v0.1.14
[INFO] [stderr]   Downloaded git-testament v0.2.4
[INFO] [stderr]   Downloaded c2rust-ast-builder v0.18.0
[INFO] [stderr]   Downloaded c2rust-ast-printer v0.18.0
[INFO] [stderr]   Downloaded c2rust-ast-exporter v0.18.0
[INFO] [stderr]   Downloaded c2rust-transpile v0.18.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25b432c77e23e81d3689ab3fa4777a2ace50e7fa45a9c0a9444b52c50e9559fc
[INFO] running `Command { std: "docker" "start" "-a" "25b432c77e23e81d3689ab3fa4777a2ace50e7fa45a9c0a9444b52c50e9559fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25b432c77e23e81d3689ab3fa4777a2ace50e7fa45a9c0a9444b52c50e9559fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b432c77e23e81d3689ab3fa4777a2ace50e7fa45a9c0a9444b52c50e9559fc", kill_on_drop: false }`
[INFO] [stdout] 25b432c77e23e81d3689ab3fa4777a2ace50e7fa45a9c0a9444b52c50e9559fc
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed7eb5bfc2a1ddd8e4e5ff89784dd228c6807e5f1a51c74adfbd60e0e627be75
[INFO] running `Command { std: "docker" "start" "-a" "ed7eb5bfc2a1ddd8e4e5ff89784dd228c6807e5f1a51c74adfbd60e0e627be75", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.57
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.57/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 prettyplease v0.2.5
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ed7eb5bfc2a1ddd8e4e5ff89784dd228c6807e5f1a51c74adfbd60e0e627be75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7eb5bfc2a1ddd8e4e5ff89784dd228c6807e5f1a51c74adfbd60e0e627be75", kill_on_drop: false }`
[INFO] [stdout] ed7eb5bfc2a1ddd8e4e5ff89784dd228c6807e5f1a51c74adfbd60e0e627be75
