[INFO] cloning repository https://github.com/ktfth/calc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ktfth/calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktfth%2Fcalc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktfth%2Fcalc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 944d74dc4faab6fefa529fb03c3ecd3537420aee
[INFO] checking ktfth/calc against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktfth%2Fcalc" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ktfth/calc
[INFO] finished tweaking git repo https://github.com/ktfth/calc
[INFO] tweaked toml for git repo https://github.com/ktfth/calc written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ktfth/calc 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 git repo https://github.com/ktfth/calc 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 utf8-width v0.1.6
[INFO] [stderr]   Downloaded parse-hyperlinks v0.23.4
[INFO] [stderr]   Downloaded nom v7.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 312617b91d8d35cbbb1944c692b88b85c21b0297d4ef8c82598f0dc8bf18726a
[INFO] running `Command { std: "docker" "start" "-a" "312617b91d8d35cbbb1944c692b88b85c21b0297d4ef8c82598f0dc8bf18726a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "312617b91d8d35cbbb1944c692b88b85c21b0297d4ef8c82598f0dc8bf18726a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "312617b91d8d35cbbb1944c692b88b85c21b0297d4ef8c82598f0dc8bf18726a", kill_on_drop: false }`
[INFO] [stdout] 312617b91d8d35cbbb1944c692b88b85c21b0297d4ef8c82598f0dc8bf18726a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9360d7dd7427d5387f4dd2e1e9e0adc4e14e6658b6eb7455255ee8115485f17
[INFO] running `Command { std: "docker" "start" "-a" "d9360d7dd7427d5387f4dd2e1e9e0adc4e14e6658b6eb7455255ee8115485f17", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.83
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling bumpalo v3.12.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen v0.2.83
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking html-escape v0.2.13
[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] [stderr]     Checking nom v7.1.2
[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" "d9360d7dd7427d5387f4dd2e1e9e0adc4e14e6658b6eb7455255ee8115485f17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9360d7dd7427d5387f4dd2e1e9e0adc4e14e6658b6eb7455255ee8115485f17", kill_on_drop: false }`
[INFO] [stdout] d9360d7dd7427d5387f4dd2e1e9e0adc4e14e6658b6eb7455255ee8115485f17