[INFO] fetching crate basyx-rs 0.2.1...
[INFO] checking basyx-rs-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate basyx-rs 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate basyx-rs 0.2.1
[INFO] finished tweaking crates.io crate basyx-rs 0.2.1
[INFO] tweaked toml for crates.io crate basyx-rs 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate basyx-rs 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate basyx-rs 0.2.1 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa66417bc97a241ca2da504e64edc9da7abbedafd0a561a6ae68110502ae215c
[INFO] running `Command { std: "docker" "start" "-a" "aa66417bc97a241ca2da504e64edc9da7abbedafd0a561a6ae68110502ae215c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa66417bc97a241ca2da504e64edc9da7abbedafd0a561a6ae68110502ae215c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa66417bc97a241ca2da504e64edc9da7abbedafd0a561a6ae68110502ae215c", kill_on_drop: false }`
[INFO] [stdout] aa66417bc97a241ca2da504e64edc9da7abbedafd0a561a6ae68110502ae215c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69ca616916320178ff84ebae185f8fae78be3e95671cdadb912be7c444fc6662
[INFO] running `Command { std: "docker" "start" "-a" "69ca616916320178ff84ebae185f8fae78be3e95671cdadb912be7c444fc6662", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[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] 
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking textwrap v0.14.2
[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" "69ca616916320178ff84ebae185f8fae78be3e95671cdadb912be7c444fc6662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ca616916320178ff84ebae185f8fae78be3e95671cdadb912be7c444fc6662", kill_on_drop: false }`
[INFO] [stdout] 69ca616916320178ff84ebae185f8fae78be3e95671cdadb912be7c444fc6662