[INFO] cloning repository https://github.com/sullay/rust-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sullay/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsullay%2Frust-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsullay%2Frust-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0adf1ea540de569906179614d59e30a9ded22901 [INFO] checking sullay/rust-learn against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsullay%2Frust-learn" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sullay/rust-learn on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sullay/rust-learn [INFO] finished tweaking git repo https://github.com/sullay/rust-learn [INFO] tweaked toml for git repo https://github.com/sullay/rust-learn written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sullay/rust-learn 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded html2md v0.2.13 [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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9fd32111f9ef3417974d8c4fd72cb5e58f07d073679ca183719d58c0df37d7f4 [INFO] running `Command { std: "docker" "start" "-a" "9fd32111f9ef3417974d8c4fd72cb5e58f07d073679ca183719d58c0df37d7f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9fd32111f9ef3417974d8c4fd72cb5e58f07d073679ca183719d58c0df37d7f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9fd32111f9ef3417974d8c4fd72cb5e58f07d073679ca183719d58c0df37d7f4", kill_on_drop: false }` [INFO] [stdout] 9fd32111f9ef3417974d8c4fd72cb5e58f07d073679ca183719d58c0df37d7f4 [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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 59298a72352c2dc51883f7065d995a7edb64c334596c6b71087085c48697f382 [INFO] running `Command { std: "docker" "start" "-a" "59298a72352c2dc51883f7065d995a7edb64c334596c6b71087085c48697f382", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.138 [INFO] [stderr] Checking once_cell v1.16.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling syn v1.0.105 [INFO] [stderr] Compiling serde v1.0.150 [INFO] [stderr] Compiling cc v1.0.77 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling proc-macro2 v1.0.47 [INFO] [stderr] Compiling parking_lot_core v0.9.5 [INFO] [stderr] Checking bytes v1.3.0 [INFO] [stderr] Compiling tokio v1.23.0 [INFO] [stderr] Compiling futures-core v0.3.25 [INFO] [stderr] Checking smallvec v1.10.0 [INFO] [stderr] Compiling openssl v0.10.44 [INFO] [stderr] Compiling futures-util v0.3.25 [INFO] [stderr] Checking phf v0.8.0 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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] [stderr] Checking tracing-core v0.1.30 [INFO] [stderr] Compiling futures-channel v0.3.25 [INFO] [stdout] error: aborting due to previous error [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 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "59298a72352c2dc51883f7065d995a7edb64c334596c6b71087085c48697f382", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59298a72352c2dc51883f7065d995a7edb64c334596c6b71087085c48697f382", kill_on_drop: false }` [INFO] [stdout] 59298a72352c2dc51883f7065d995a7edb64c334596c6b71087085c48697f382