[INFO] fetching crate gfatk 0.2.3...
[INFO] testing gfatk-0.2.3 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate gfatk 0.2.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate gfatk 0.2.3
[INFO] finished tweaking crates.io crate gfatk 0.2.3
[INFO] tweaked toml for crates.io crate gfatk 0.2.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gfatk 0.2.3 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gfatk 0.2.3 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f991191641bb46028f5285315a2145cceb485ee5ccc2743eab54ef313c7cfcbd
[INFO] running `Command { std: "docker" "start" "-a" "f991191641bb46028f5285315a2145cceb485ee5ccc2743eab54ef313c7cfcbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f991191641bb46028f5285315a2145cceb485ee5ccc2743eab54ef313c7cfcbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f991191641bb46028f5285315a2145cceb485ee5ccc2743eab54ef313c7cfcbd", kill_on_drop: false }`
[INFO] [stdout] f991191641bb46028f5285315a2145cceb485ee5ccc2743eab54ef313c7cfcbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 280b1239d8a9b9973a807f940c914e3e81e0f64b03b937e95ca3f23b95d15c0c
[INFO] running `Command { std: "docker" "start" "-a" "280b1239d8a9b9973a807f940c914e3e81e0f64b03b937e95ca3f23b95d15c0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling rustix v0.37.7
[INFO] [stderr]    Compiling linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling anstyle v0.3.5
[INFO] [stderr]    Compiling concolor-query v0.3.3
[INFO] [stderr]    Compiling anstyle-parse v0.1.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling concolor-override v1.0.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling clap_lex v0.4.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling fixedbitset v0.4.0
[INFO] [stderr]    Compiling itertools v0.10.3
[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 aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling bstr v1.4.0
[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" "280b1239d8a9b9973a807f940c914e3e81e0f64b03b937e95ca3f23b95d15c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "280b1239d8a9b9973a807f940c914e3e81e0f64b03b937e95ca3f23b95d15c0c", kill_on_drop: false }`
[INFO] [stdout] 280b1239d8a9b9973a807f940c914e3e81e0f64b03b937e95ca3f23b95d15c0c