[INFO] cloning repository https://github.com/phaer/mdbook-nix [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phaer/mdbook-nix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphaer%2Fmdbook-nix", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphaer%2Fmdbook-nix'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9af05cee673183fa5241cedff8a335a3104da0d1 [INFO] checking phaer/mdbook-nix against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphaer%2Fmdbook-nix" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/phaer/mdbook-nix [INFO] finished tweaking git repo https://github.com/phaer/mdbook-nix [INFO] tweaked toml for git repo https://github.com/phaer/mdbook-nix written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/phaer/mdbook-nix 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/phaer/mdbook-nix 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Updating git repository `https://github.com/phaer/rexpect.git` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded comma v1.0.0 [INFO] [stderr] Downloaded notify-debouncer-mini v0.2.1 [INFO] [stderr] Downloaded opener v0.5.2 [INFO] [stderr] Downloaded pulldown-cmark-to-cmark v10.0.4 [INFO] [stderr] Downloaded terminal_size v0.2.6 [INFO] [stderr] Downloaded gitignore v1.0.8 [INFO] [stderr] Downloaded console v0.15.5 [INFO] [stderr] Downloaded clap_complete v4.2.1 [INFO] [stderr] Downloaded ammonia v3.3.0 [INFO] [stderr] Downloaded similar v2.2.1 [INFO] [stderr] Downloaded warp v0.3.4 [INFO] [stderr] Downloaded pulldown-cmark v0.9.2 [INFO] [stderr] Downloaded rustix v0.37.14 [INFO] [stderr] Downloaded insta v1.29.0 [INFO] [stderr] Downloaded linux-raw-sys v0.3.4 [INFO] [stderr] Downloaded mdbook v0.4.28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cfc7ab2e877837bb47a0b1cdcb2fb7b2fa330bfe96f624131de357a3fe38256a [INFO] running `Command { std: "docker" "start" "-a" "cfc7ab2e877837bb47a0b1cdcb2fb7b2fa330bfe96f624131de357a3fe38256a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cfc7ab2e877837bb47a0b1cdcb2fb7b2fa330bfe96f624131de357a3fe38256a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cfc7ab2e877837bb47a0b1cdcb2fb7b2fa330bfe96f624131de357a3fe38256a", kill_on_drop: false }` [INFO] [stdout] cfc7ab2e877837bb47a0b1cdcb2fb7b2fa330bfe96f624131de357a3fe38256a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0b193781618ddccbc5d824535150dc7fdeb1e811178d2ea9ea1c431da8b27ee2 [INFO] running `Command { std: "docker" "start" "-a" "0b193781618ddccbc5d824535150dc7fdeb1e811178d2ea9ea1c431da8b27ee2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.56 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling libc v0.2.142 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Compiling serde_derive v1.0.160 [INFO] [stderr] Checking once_cell v1.17.1 [INFO] [stderr] Compiling serde v1.0.160 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Compiling thiserror v1.0.40 [INFO] [stderr] Compiling io-lifetimes v1.0.10 [INFO] [stderr] Checking bytes v1.4.0 [INFO] [stderr] Compiling typenum v1.16.0 [INFO] [stderr] Compiling rustix v0.37.14 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Checking linux-raw-sys v0.3.4 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Compiling siphasher v0.3.10 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling tokio v1.27.0 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [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 lock_api v0.4.9 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Compiling slab v0.4.8 [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" "0b193781618ddccbc5d824535150dc7fdeb1e811178d2ea9ea1c431da8b27ee2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b193781618ddccbc5d824535150dc7fdeb1e811178d2ea9ea1c431da8b27ee2", kill_on_drop: false }` [INFO] [stdout] 0b193781618ddccbc5d824535150dc7fdeb1e811178d2ea9ea1c431da8b27ee2