[INFO] fetching crate texfmt 0.1.0...
[INFO] testing texfmt-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate texfmt 0.1.0 into /workspace/builds/worker-0-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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate texfmt 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v3.2.22
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded logging_timer_proc_macros v1.1.0
[INFO] [stderr]   Downloaded logging_timer v1.1.0
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded nom v7.1.1
[INFO] [stderr]   Downloaded cc v1.0.73
[INFO] [stderr]   Downloaded time-macros v0.2.4
[INFO] [stderr]   Downloaded object v0.29.0
[INFO] [stderr]   Downloaded anyhow v1.0.65
[INFO] [stderr]   Downloaded syn v1.0.100
[INFO] [stderr]   Downloaded proc-macro2 v1.0.44
[INFO] [stderr]   Downloaded simplelog v0.12.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded miniz_oxide v0.5.4
[INFO] [stderr]   Downloaded libc v0.2.133
[INFO] [stderr]   Downloaded backtrace v0.3.66
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded document-features v0.2.6
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded time v0.3.14
[INFO] [stderr]   Downloaded itoa v1.0.3
[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded yansi v0.5.1
[INFO] [stderr]   Downloaded cfg_log v0.1.1
[INFO] [stderr]   Downloaded gimli v0.26.2
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] [stderr]   Downloaded clap_derive v3.2.18
[INFO] [stderr]   Downloaded litrs v0.2.3
[INFO] [stderr]   Downloaded should-color v0.5.2
[INFO] [stderr]   Downloaded num_threads v0.1.6
[INFO] [stderr]   Downloaded assert2 v0.3.6
[INFO] [stderr]   Downloaded assert2-macros v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55524e3609df863b9b3fa60db98388372b586d07be2d5d0f77e46765c19e8d45
[INFO] running `Command { std: "docker" "start" "-a" "55524e3609df863b9b3fa60db98388372b586d07be2d5d0f77e46765c19e8d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55524e3609df863b9b3fa60db98388372b586d07be2d5d0f77e46765c19e8d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55524e3609df863b9b3fa60db98388372b586d07be2d5d0f77e46765c19e8d45", kill_on_drop: false }`
[INFO] [stdout] 55524e3609df863b9b3fa60db98388372b586d07be2d5d0f77e46765c19e8d45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8015c19fbf1f3b7b98a05ff52e9d2601213d746bc980a00570f466de1e97a367
[INFO] running `Command { std: "docker" "start" "-a" "8015c19fbf1f3b7b98a05ff52e9d2601213d746bc980a00570f466de1e97a367", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling quote v1.0.21
[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 log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling anyhow v1.0.65
[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 rustc-demangle v0.1.21
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling textwrap v0.15.1
[INFO] [stderr]    Compiling num_threads v0.1.6
[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" "8015c19fbf1f3b7b98a05ff52e9d2601213d746bc980a00570f466de1e97a367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8015c19fbf1f3b7b98a05ff52e9d2601213d746bc980a00570f466de1e97a367", kill_on_drop: false }`
[INFO] [stdout] 8015c19fbf1f3b7b98a05ff52e9d2601213d746bc980a00570f466de1e97a367