[INFO] fetching crate texfmt 0.1.0...
[INFO] testing texfmt-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate texfmt 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate texfmt 0.1.0
[INFO] finished tweaking crates.io crate texfmt 0.1.0
[INFO] tweaked toml for crates.io crate texfmt 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate texfmt 0.1.0 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 texfmt 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded logging_timer_proc_macros v1.1.0
[INFO] [stderr]   Downloaded simplelog v0.12.0
[INFO] [stderr]   Downloaded cfg_log v0.1.1
[INFO] [stderr]   Downloaded should-color v0.5.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.44
[INFO] [stderr]   Downloaded assert2-macros v0.3.6
[INFO] [stderr]   Downloaded logging_timer v1.1.0
[INFO] [stderr]   Downloaded assert2 v0.3.6
[INFO] [stderr]   Downloaded document-features v0.2.6
[INFO] [stderr]   Downloaded anyhow v1.0.65
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded litrs v0.2.3
[INFO] [stderr]   Downloaded clap v3.2.22
[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] 5f3567c9aebd4da773196b215bdadded56950d9edaa13b81016e7ca13ea3878d
[INFO] running `Command { std: "docker" "start" "-a" "5f3567c9aebd4da773196b215bdadded56950d9edaa13b81016e7ca13ea3878d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f3567c9aebd4da773196b215bdadded56950d9edaa13b81016e7ca13ea3878d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3567c9aebd4da773196b215bdadded56950d9edaa13b81016e7ca13ea3878d", kill_on_drop: false }`
[INFO] [stdout] 5f3567c9aebd4da773196b215bdadded56950d9edaa13b81016e7ca13ea3878d
[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] ac33c66952f31d90fc36fcc9be4197cb6dd4a6443a817d2ae6d3d64d5e6a0280
[INFO] running `Command { std: "docker" "start" "-a" "ac33c66952f31d90fc36fcc9be4197cb6dd4a6443a817d2ae6d3d64d5e6a0280", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling textwrap v0.15.1
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.44/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 cfg_log v0.1.1
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling document-features v0.2.6
[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" "ac33c66952f31d90fc36fcc9be4197cb6dd4a6443a817d2ae6d3d64d5e6a0280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac33c66952f31d90fc36fcc9be4197cb6dd4a6443a817d2ae6d3d64d5e6a0280", kill_on_drop: false }`
[INFO] [stdout] ac33c66952f31d90fc36fcc9be4197cb6dd4a6443a817d2ae6d3d64d5e6a0280