[INFO] cloning repository https://github.com/jimjbrettj/scale-encoding-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimjbrettj/scale-encoding-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimjbrettj%2Fscale-encoding-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimjbrettj%2Fscale-encoding-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a111e57d5103a7b5ba863cee09b83b89ba9c29e0
[INFO] testing jimjbrettj/scale-encoding-generator against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimjbrettj%2Fscale-encoding-generator" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jimjbrettj/scale-encoding-generator
[INFO] finished tweaking git repo https://github.com/jimjbrettj/scale-encoding-generator
[INFO] tweaked toml for git repo https://github.com/jimjbrettj/scale-encoding-generator written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jimjbrettj/scale-encoding-generator 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 git repo https://github.com/jimjbrettj/scale-encoding-generator 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 proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded parity-scale-codec-derive v3.1.4
[INFO] [stderr]   Downloaded proc-macro-crate v1.3.0
[INFO] [stderr]   Downloaded parity-scale-codec v3.2.2
[INFO] [stderr]   Downloaded toml_datetime v0.5.1
[INFO] [stderr]   Downloaded once_cell v1.17.0
[INFO] [stderr]   Downloaded toml_edit v0.18.0
[INFO] [stderr]   Downloaded serde v1.0.152
[INFO] [stderr]   Downloaded nom8 v0.2.0
[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] 2945b47c991e54f4bc1030dbbe06f66a835bd6ce9566f03f18557c544f05bfd6
[INFO] running `Command { std: "docker" "start" "-a" "2945b47c991e54f4bc1030dbbe06f66a835bd6ce9566f03f18557c544f05bfd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2945b47c991e54f4bc1030dbbe06f66a835bd6ce9566f03f18557c544f05bfd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2945b47c991e54f4bc1030dbbe06f66a835bd6ce9566f03f18557c544f05bfd6", kill_on_drop: false }`
[INFO] [stdout] 2945b47c991e54f4bc1030dbbe06f66a835bd6ce9566f03f18557c544f05bfd6
[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] ec610d498ef6abca1759a6d32d3aa740bd7d123511a127337b42924130ea9e6b
[INFO] running `Command { std: "docker" "start" "-a" "ec610d498ef6abca1759a6d32d3aa740bd7d123511a127337b42924130ea9e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling toml_datetime v0.5.1
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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] [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" "ec610d498ef6abca1759a6d32d3aa740bd7d123511a127337b42924130ea9e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec610d498ef6abca1759a6d32d3aa740bd7d123511a127337b42924130ea9e6b", kill_on_drop: false }`
[INFO] [stdout] ec610d498ef6abca1759a6d32d3aa740bd7d123511a127337b42924130ea9e6b