[INFO] cloning repository https://github.com/propenster/learningtokio [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/propenster/learningtokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpropenster%2Flearningtokio", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpropenster%2Flearningtokio'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 612c766ebe6c9922397535c247ef844ce8a1d95f [INFO] building propenster/learningtokio against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpropenster%2Flearningtokio" "/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/propenster/learningtokio [INFO] finished tweaking git repo https://github.com/propenster/learningtokio [INFO] tweaked toml for git repo https://github.com/propenster/learningtokio written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/propenster/learningtokio on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/propenster/learningtokio 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded atoi v0.3.3 [INFO] [stderr] Downloaded mini-redis v0.4.1 [INFO] [stderr] Downloaded quote v1.0.28 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.86 [INFO] [stderr] Downloaded core-foundation-sys v0.8.4 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.86 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.86 [INFO] [stderr] Downloaded unicode-ident v1.0.9 [INFO] [stderr] Downloaded unicode-width v0.1.10 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.86 [INFO] [stderr] Downloaded parking_lot_core v0.9.7 [INFO] [stderr] Downloaded proc-macro2 v1.0.59 [INFO] [stderr] Downloaded pin-project-internal v1.1.0 [INFO] [stderr] Downloaded log v0.4.18 [INFO] [stderr] Downloaded tracing-attributes v0.1.24 [INFO] [stderr] Downloaded pin-project v1.1.0 [INFO] [stderr] Downloaded bumpalo v3.13.0 [INFO] [stderr] Downloaded js-sys v0.3.63 [INFO] [stderr] Downloaded serde v1.0.163 [INFO] [stderr] Downloaded serde_json v1.0.96 [INFO] [stderr] Downloaded tracing-subscriber v0.2.25 [INFO] [stderr] Downloaded wasm-bindgen v0.2.86 [INFO] [stderr] Downloaded chrono v0.4.26 [INFO] [stderr] Downloaded syn v2.0.18 [INFO] [stderr] Downloaded regex v1.8.3 [INFO] [stderr] Downloaded regex-syntax v0.7.2 [INFO] [stderr] Downloaded tokio v1.28.2 [INFO] [stderr] Downloaded libc v0.2.145 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f6680a8210bc00e423454dcedbe5c945a206cb95274b88e7826d7f97b34c9711 [INFO] running `Command { std: "docker" "start" "-a" "f6680a8210bc00e423454dcedbe5c945a206cb95274b88e7826d7f97b34c9711", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f6680a8210bc00e423454dcedbe5c945a206cb95274b88e7826d7f97b34c9711", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6680a8210bc00e423454dcedbe5c945a206cb95274b88e7826d7f97b34c9711", kill_on_drop: false }` [INFO] [stdout] f6680a8210bc00e423454dcedbe5c945a206cb95274b88e7826d7f97b34c9711 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fcd8a7a523565e5bda6b3996be0e91e3b6346cbdf2150d51765e0395a3f7627d [INFO] running `Command { std: "docker" "start" "-a" "fcd8a7a523565e5bda6b3996be0e91e3b6346cbdf2150d51765e0395a3f7627d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.59 [INFO] [stderr] Compiling quote v1.0.28 [INFO] [stderr] Compiling unicode-ident v1.0.9 [INFO] [stderr] Compiling libc v0.2.145 [INFO] [stderr] Compiling once_cell v1.18.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde v1.0.163 [INFO] [stderr] Compiling smallvec v1.10.0 [INFO] [stderr] Compiling parking_lot_core v0.9.7 [INFO] [stderr] Compiling log v0.4.18 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling tokio v1.28.2 [INFO] [stderr] Compiling serde_json v1.0.96 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling regex-syntax v0.7.2 [INFO] [stderr] Compiling matchers v0.0.1 [INFO] [stderr] Compiling sharded-slab v0.1.4 [INFO] [stderr] Compiling tracing-core v0.1.31 [INFO] [stderr] Compiling thread_local v1.1.7 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 tracing-log v0.1.3 [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" "fcd8a7a523565e5bda6b3996be0e91e3b6346cbdf2150d51765e0395a3f7627d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fcd8a7a523565e5bda6b3996be0e91e3b6346cbdf2150d51765e0395a3f7627d", kill_on_drop: false }` [INFO] [stdout] fcd8a7a523565e5bda6b3996be0e91e3b6346cbdf2150d51765e0395a3f7627d