[INFO] cloning repository https://github.com/treharne/kpr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/treharne/kpr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreharne%2Fkpr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreharne%2Fkpr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13017e78a1b0a3fb22f926f3eb83930e93b20d45
[INFO] checking treharne/kpr against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreharne%2Fkpr" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/treharne/kpr
[INFO] finished tweaking git repo https://github.com/treharne/kpr
[INFO] tweaked toml for git repo https://github.com/treharne/kpr written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/treharne/kpr on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/treharne/kpr 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.3.0
[INFO] [stderr]   Downloaded textwrap v0.16.0
[INFO] [stderr]   Downloaded terminal_size v0.2.6
[INFO] [stderr]   Downloaded concolor-override v1.0.0
[INFO] [stderr]   Downloaded scratch v1.0.5
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded iana-time-zone v0.1.56
[INFO] [stderr]   Downloaded anstyle v0.3.5
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.94
[INFO] [stderr]   Downloaded clap v4.2.1
[INFO] [stderr]   Downloaded concolor-query v0.3.3
[INFO] [stderr]   Downloaded anstyle-parse v0.1.1
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.94
[INFO] [stderr]   Downloaded dirs v5.0.0
[INFO] [stderr]   Downloaded serde_derive v1.0.160
[INFO] [stderr]   Downloaded cxx-build v1.0.94
[INFO] [stderr]   Downloaded is-terminal v0.4.6
[INFO] [stderr]   Downloaded chrono v0.4.24
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded clap_builder v4.2.1
[INFO] [stderr]   Downloaded smawk v0.3.1
[INFO] [stderr]   Downloaded rustix v0.37.7
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.4
[INFO] [stderr]   Downloaded cxx v1.0.94
[INFO] [stderr]   Downloaded clap_derive v4.2.0
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] [stderr]   Downloaded dirs-sys v0.4.0
[INFO] [stderr]   Downloaded anstyle-wincon v0.2.0
[INFO] [stderr]   Downloaded anstream v0.2.6
[INFO] [stderr]   Downloaded rev_buf_reader v0.3.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.9
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] [stderr]   Downloaded rust-stemmers v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38263c4d82b1ff7ea9c9dec9d8890014d269c7b5bae1a0483e57074d3c80fe23
[INFO] running `Command { std: "docker" "start" "-a" "38263c4d82b1ff7ea9c9dec9d8890014d269c7b5bae1a0483e57074d3c80fe23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38263c4d82b1ff7ea9c9dec9d8890014d269c7b5bae1a0483e57074d3c80fe23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38263c4d82b1ff7ea9c9dec9d8890014d269c7b5bae1a0483e57074d3c80fe23", kill_on_drop: false }`
[INFO] [stdout] 38263c4d82b1ff7ea9c9dec9d8890014d269c7b5bae1a0483e57074d3c80fe23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c834baa0c7b1b5cee228313edf3c0a8638b9eebabb6abdc299cee337c0daa2e3
[INFO] running `Command { std: "docker" "start" "-a" "c834baa0c7b1b5cee228313edf3c0a8638b9eebabb6abdc299cee337c0daa2e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling rustix v0.37.7
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking anstyle-parse v0.1.1
[INFO] [stderr]     Checking anstyle v0.3.5
[INFO] [stderr]     Checking concolor-query v0.3.3
[INFO] [stderr]     Checking concolor-override v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking clap_lex v0.4.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[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 v1.0.1
[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" "c834baa0c7b1b5cee228313edf3c0a8638b9eebabb6abdc299cee337c0daa2e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c834baa0c7b1b5cee228313edf3c0a8638b9eebabb6abdc299cee337c0daa2e3", kill_on_drop: false }`
[INFO] [stdout] c834baa0c7b1b5cee228313edf3c0a8638b9eebabb6abdc299cee337c0daa2e3
