[INFO] cloning repository https://github.com/me-imfhd/rustlings-solutions [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/me-imfhd/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fme-imfhd%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fme-imfhd%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8f70ed2134d66a286785eb379f66261515cbaa63 [INFO] testing me-imfhd/rustlings-solutions against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fme-imfhd%2Frustlings-solutions" "/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/me-imfhd/rustlings-solutions [INFO] finished tweaking git repo https://github.com/me-imfhd/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/me-imfhd/rustlings-solutions written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/me-imfhd/rustlings-solutions on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/me-imfhd/rustlings-solutions 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded predicates v3.0.3 [INFO] [stderr] Downloaded anstyle v1.0.3 [INFO] [stderr] Downloaded filetime v0.2.22 [INFO] [stderr] Downloaded console v0.15.5 [INFO] [stderr] Downloaded anstyle-wincon v2.1.0 [INFO] [stderr] Downloaded notify-debouncer-mini v0.4.1 [INFO] [stderr] Downloaded anstream v0.5.0 [INFO] [stderr] Downloaded assert_cmd v2.0.12 [INFO] [stderr] Downloaded clap v4.4.3 [INFO] [stderr] Downloaded indicatif v0.17.6 [INFO] [stderr] Downloaded clap_lex v0.5.1 [INFO] [stderr] Downloaded portable-atomic v1.4.3 [INFO] [stderr] Downloaded clap_derive v4.4.2 [INFO] [stderr] Downloaded clap_builder v4.4.2 [INFO] [stderr] Downloaded bstr v1.6.2 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8821191f6e684f4520db60d1bbcdfd0910b4275c81064d29634aadf6182e9a21 [INFO] running `Command { std: "docker" "start" "-a" "8821191f6e684f4520db60d1bbcdfd0910b4275c81064d29634aadf6182e9a21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8821191f6e684f4520db60d1bbcdfd0910b4275c81064d29634aadf6182e9a21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8821191f6e684f4520db60d1bbcdfd0910b4275c81064d29634aadf6182e9a21", kill_on_drop: false }` [INFO] [stdout] 8821191f6e684f4520db60d1bbcdfd0910b4275c81064d29634aadf6182e9a21 [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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a9439e1a9deedd55d8e85ec13b21cf226ce26d8dc5f7a71cf78ee96400d48ff9 [INFO] running `Command { std: "docker" "start" "-a" "a9439e1a9deedd55d8e85ec13b21cf226ce26d8dc5f7a71cf78ee96400d48ff9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.53 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Compiling serde_derive v1.0.158 [INFO] [stderr] Compiling serde v1.0.158 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling hashbrown v0.14.0 [INFO] [stderr] Compiling portable-atomic v1.4.3 [INFO] [stderr] Compiling equivalent v1.0.1 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling anstyle v1.0.3 [INFO] [stderr] Compiling anstyle-query v1.0.0 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Compiling serde_json v1.0.94 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling memchr v2.6.3 [INFO] [stderr] Compiling anstyle-parse v0.2.1 [INFO] [stderr] Compiling clap_lex v0.5.1 [INFO] [stderr] Compiling anstream v0.5.0 [INFO] [stderr] Compiling winnow v0.5.15 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling ryu v1.0.13 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling clap_builder v4.4.2 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling itoa v1.0.6 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.53/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 home v0.5.4 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.8 [INFO] [stderr] Compiling indexmap v2.0.0 [INFO] [stderr] Compiling aho-corasick v0.7.20 [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" "a9439e1a9deedd55d8e85ec13b21cf226ce26d8dc5f7a71cf78ee96400d48ff9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9439e1a9deedd55d8e85ec13b21cf226ce26d8dc5f7a71cf78ee96400d48ff9", kill_on_drop: false }` [INFO] [stdout] a9439e1a9deedd55d8e85ec13b21cf226ce26d8dc5f7a71cf78ee96400d48ff9