[INFO] fetching crate xivar 0.5.1...
[INFO] testing xivar-0.5.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate xivar 0.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate xivar 0.5.1
[INFO] finished tweaking crates.io crate xivar 0.5.1
[INFO] tweaked toml for crates.io crate xivar 0.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xivar 0.5.1 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 xivar 0.5.1 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 xmlparser v0.13.5
[INFO] [stderr]   Downloaded ipnet v2.7.0
[INFO] [stderr]   Downloaded open v3.2.0
[INFO] [stderr]   Downloaded futures-macro v0.3.25
[INFO] [stderr]   Downloaded winapi-wsapoll v0.1.1
[INFO] [stderr]   Downloaded roxmltree v0.16.0
[INFO] [stderr]   Downloaded clipboard-win v4.4.2
[INFO] [stderr]   Downloaded pest_generator v2.5.2
[INFO] [stderr]   Downloaded pest_derive v2.5.2
[INFO] [stderr]   Downloaded link-cplusplus v1.0.8
[INFO] [stderr]   Downloaded const_fn v0.4.9
[INFO] [stderr]   Downloaded clap_derive v4.0.21
[INFO] [stderr]   Downloaded async-trait v0.1.60
[INFO] [stderr]   Downloaded pest_meta v2.5.2
[INFO] [stderr]   Downloaded config v0.13.3
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.85
[INFO] [stderr]   Downloaded reqwest v0.11.13
[INFO] [stderr]   Downloaded pest v2.5.2
[INFO] [stderr]   Downloaded cxx-build v1.0.85
[INFO] [stderr]   Downloaded console v0.15.4
[INFO] [stderr]   Downloaded clap v4.0.32
[INFO] [stderr]   Downloaded x11rb v0.10.1
[INFO] [stderr]   Downloaded openssl v0.10.45
[INFO] [stderr]   Downloaded petgraph v0.6.2
[INFO] [stderr]   Downloaded pom v3.2.0
[INFO] [stderr]   Downloaded futures v0.3.25
[INFO] [stderr]   Downloaded fern v0.6.1
[INFO] [stderr]   Downloaded os_str_bytes v6.4.1
[INFO] [stderr]   Downloaded clap_lex v0.3.0
[INFO] [stderr]   Downloaded bytecount v0.6.3
[INFO] [stderr]   Downloaded tree_magic_mini v3.0.3
[INFO] [stderr]   Downloaded wl-clipboard-rs v0.7.0
[INFO] [stderr]   Downloaded x11-clipboard v0.7.0
[INFO] [stderr]   Downloaded sha1_smol v1.0.0
[INFO] [stderr]   Downloaded pathdiff v0.2.1
[INFO] [stderr]   Downloaded x11rb-protocol v0.10.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.80
[INFO] [stderr]   Downloaded os_pipe v1.1.2
[INFO] [stderr]   Downloaded cli-clipboard v0.4.0
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.85
[INFO] [stderr]   Downloaded cxx v1.0.85
[INFO] [stderr]   Downloaded tokio v1.24.0
[INFO] [stderr]   Downloaded scratch v1.0.3
[INFO] [stderr]   Downloaded lopdf v0.29.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c357c1aa47a94cd178fabcebd8051cb1a74b9f25d490622deac93affac79d42f
[INFO] running `Command { std: "docker" "start" "-a" "c357c1aa47a94cd178fabcebd8051cb1a74b9f25d490622deac93affac79d42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c357c1aa47a94cd178fabcebd8051cb1a74b9f25d490622deac93affac79d42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c357c1aa47a94cd178fabcebd8051cb1a74b9f25d490622deac93affac79d42f", kill_on_drop: false }`
[INFO] [stdout] c357c1aa47a94cd178fabcebd8051cb1a74b9f25d490622deac93affac79d42f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf5273316da4cf81abeac66859751077dfe1ba0beb1d9812498ffce31ce2f722
[INFO] running `Command { std: "docker" "start" "-a" "bf5273316da4cf81abeac66859751077dfe1ba0beb1d9812498ffce31ce2f722", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling tokio v1.24.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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 encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[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" "bf5273316da4cf81abeac66859751077dfe1ba0beb1d9812498ffce31ce2f722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf5273316da4cf81abeac66859751077dfe1ba0beb1d9812498ffce31ce2f722", kill_on_drop: false }`
[INFO] [stdout] bf5273316da4cf81abeac66859751077dfe1ba0beb1d9812498ffce31ce2f722