[INFO] cloning repository https://github.com/Banyc/kaleidoscope
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Banyc/kaleidoscope" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBanyc%2Fkaleidoscope", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBanyc%2Fkaleidoscope'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82cb79398ab1983aeb5594301ca10de52ac38755
[INFO] checking Banyc/kaleidoscope against master#90b65889799733f21ebdf59d96411aa531c5900a for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBanyc%2Fkaleidoscope" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Banyc/kaleidoscope
[INFO] finished tweaking git repo https://github.com/Banyc/kaleidoscope
[INFO] tweaked toml for git repo https://github.com/Banyc/kaleidoscope written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Banyc/kaleidoscope on toolchain 90b65889799733f21ebdf59d96411aa531c5900a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+90b65889799733f21ebdf59d96411aa531c5900a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Banyc/kaleidoscope 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" "+90b65889799733f21ebdf59d96411aa531c5900a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/TheDan64/inkwell`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-recursion v1.0.0
[INFO] [stderr]   Downloaded cc v1.0.74
[INFO] [stderr]   Downloaded llvm-sys v140.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+90b65889799733f21ebdf59d96411aa531c5900a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74638c5c7acba06041c680e8aec6acb4d59b6ff4bf660eaf12707e0353dfc232
[INFO] running `Command { std: "docker" "start" "-a" "74638c5c7acba06041c680e8aec6acb4d59b6ff4bf660eaf12707e0353dfc232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74638c5c7acba06041c680e8aec6acb4d59b6ff4bf660eaf12707e0353dfc232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74638c5c7acba06041c680e8aec6acb4d59b6ff4bf660eaf12707e0353dfc232", kill_on_drop: false }`
[INFO] [stdout] 74638c5c7acba06041c680e8aec6acb4d59b6ff4bf660eaf12707e0353dfc232
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+90b65889799733f21ebdf59d96411aa531c5900a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad57d0255a322f37fc58bcd3c2c0c6f151ed7af6a3601f296039c3347215c173
[INFO] running `Command { std: "docker" "start" "-a" "ad57d0255a322f37fc58bcd3c2c0c6f151ed7af6a3601f296039c3347215c173", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]     Checking futures-task v0.3.25
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking futures-channel v0.3.25
[INFO] [stderr]     Checking slab v0.4.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=master#e7e39c96)
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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" "ad57d0255a322f37fc58bcd3c2c0c6f151ed7af6a3601f296039c3347215c173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad57d0255a322f37fc58bcd3c2c0c6f151ed7af6a3601f296039c3347215c173", kill_on_drop: false }`
[INFO] [stdout] ad57d0255a322f37fc58bcd3c2c0c6f151ed7af6a3601f296039c3347215c173
