[INFO] cloning repository https://github.com/justinluther502/writing_helper_chat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/justinluther502/writing_helper_chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinluther502%2Fwriting_helper_chat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinluther502%2Fwriting_helper_chat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a5f56cb9ed58f956b1f5485b54bee02c8d67d7cf [INFO] building justinluther502/writing_helper_chat against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinluther502%2Fwriting_helper_chat" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/justinluther502/writing_helper_chat on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/justinluther502/writing_helper_chat [INFO] finished tweaking git repo https://github.com/justinluther502/writing_helper_chat [INFO] tweaked toml for git repo https://github.com/justinluther502/writing_helper_chat written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/justinluther502/writing_helper_chat 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9f641efa016ba366772f0d565fa4d2fa7c1534d72dc9e78483270e8d708439c3 [INFO] running `Command { std: "docker" "start" "-a" "9f641efa016ba366772f0d565fa4d2fa7c1534d72dc9e78483270e8d708439c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9f641efa016ba366772f0d565fa4d2fa7c1534d72dc9e78483270e8d708439c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f641efa016ba366772f0d565fa4d2fa7c1534d72dc9e78483270e8d708439c3", kill_on_drop: false }` [INFO] [stdout] 9f641efa016ba366772f0d565fa4d2fa7c1534d72dc9e78483270e8d708439c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3e443f5acf8535ed24f71f4f1cb9a87e8c7464e77e237019707848d5245d9c41 [INFO] running `Command { std: "docker" "start" "-a" "3e443f5acf8535ed24f71f4f1cb9a87e8c7464e77e237019707848d5245d9c41", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.134 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling proc-macro2 v1.0.46 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling once_cell v1.15.0 [INFO] [stderr] Compiling pkg-config v0.3.25 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling unicode-ident v1.0.4 [INFO] [stderr] Compiling futures-core v0.3.24 [INFO] [stderr] Compiling syn v1.0.102 [INFO] [stderr] Compiling bytes v1.2.1 [INFO] [stderr] Compiling itoa v1.0.4 [INFO] [stderr] Compiling futures-task v0.3.24 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling serde v1.0.145 [INFO] [stderr] Compiling foreign-types-shared v0.1.1 [INFO] [stderr] Compiling futures-util v0.3.24 [INFO] [stderr] Compiling openssl v0.10.42 [INFO] [stderr] Compiling tracing-core v0.1.30 [INFO] [stderr] Compiling foreign-types v0.3.2 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling futures-io v0.3.24 [INFO] [stderr] Compiling native-tls v0.2.10 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling futures-sink v0.3.24 [INFO] [stderr] Compiling tokio v1.21.2 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 tinyvec_macros v0.1.0 [INFO] [stderr] Compiling futures-channel v0.3.24 [INFO] [stderr] Compiling tinyvec v1.6.0 [INFO] [stderr] Compiling try-lock v0.2.3 [INFO] [stderr] Compiling percent-encoding v2.2.0 [INFO] [stderr] Compiling http v0.2.8 [INFO] [stderr] Compiling openssl-probe v0.1.5 [INFO] [stderr] Compiling want v0.3.0 [INFO] [stderr] Compiling tracing v0.1.37 [INFO] [stderr] Compiling form_urlencoded v1.1.0 [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] Compiling unicode-bidi v0.3.8 [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" "3e443f5acf8535ed24f71f4f1cb9a87e8c7464e77e237019707848d5245d9c41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e443f5acf8535ed24f71f4f1cb9a87e8c7464e77e237019707848d5245d9c41", kill_on_drop: false }` [INFO] [stdout] 3e443f5acf8535ed24f71f4f1cb9a87e8c7464e77e237019707848d5245d9c41