[INFO] fetching crate mcai 0.2.2...
[INFO] checking mcai-0.2.2 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate mcai 0.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mcai 0.2.2 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mcai 0.2.2
[INFO] finished tweaking crates.io crate mcai 0.2.2
[INFO] tweaked toml for crates.io crate mcai 0.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate mcai 0.2.2 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded term-table v1.3.2
[INFO] [stderr]   Downloaded futures-macro v0.3.24
[INFO] [stderr]   Downloaded ctor v0.1.23
[INFO] [stderr]   Downloaded iana-time-zone v0.1.50
[INFO] [stderr]   Downloaded mcai-types v0.1.0
[INFO] [stderr]   Downloaded svg v0.10.0
[INFO] [stderr]   Downloaded lalrpop-util v0.19.8
[INFO] [stderr]   Downloaded byte-unit v4.0.14
[INFO] [stderr]   Downloaded rpassword v5.0.1
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded async-trait v0.1.57
[INFO] [stderr]   Downloaded pico-args v0.4.2
[INFO] [stderr]   Downloaded confy v0.4.0
[INFO] [stderr]   Downloaded httpmock v0.6.6
[INFO] [stderr]   Downloaded cargo-lock v7.1.0
[INFO] [stderr]   Downloaded similar v2.2.0
[INFO] [stderr]   Downloaded handlebars v4.3.5
[INFO] [stderr]   Downloaded material-icons v0.2.0
[INFO] [stderr]   Downloaded lalrpop v0.19.8
[INFO] [stderr]   Downloaded clap v3.2.22
[INFO] [stderr]   Downloaded isahc v1.7.2
[INFO] [stderr]   Downloaded mcai-graph-renderer v0.2.0
[INFO] [stderr]   Downloaded built v0.5.1
[INFO] [stderr]   Downloaded cargo_toml v0.11.8
[INFO] [stderr]   Downloaded directories v3.0.2
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded async-global-executor v2.3.0
[INFO] [stderr]   Downloaded async-io v1.9.0
[INFO] [stderr]   Downloaded bollard v0.12.0
[INFO] [stderr]   Downloaded mcai-benchmark v0.3.0
[INFO] [stderr]   Downloaded polling v2.3.0
[INFO] [stderr]   Downloaded enum-iterator-derive v0.8.1
[INFO] [stderr]   Downloaded basic-cookies v0.1.4
[INFO] [stderr]   Downloaded castaway v0.1.2
[INFO] [stderr]   Downloaded topology-traits v0.1.1
[INFO] [stderr]   Downloaded bollard-stubs v1.42.0-rc.0
[INFO] [stderr]   Downloaded enum-iterator v0.8.1
[INFO] [stderr]   Downloaded async-process v1.5.0
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.7+1.45.0
[INFO] [stderr]   Downloaded enterpolation v0.1.1
[INFO] [stderr]   Downloaded serde_valid_derive v0.2.0
[INFO] [stderr]   Downloaded serde_valid v0.2.0
[INFO] [stderr]   Downloaded mcai-docker v0.2.1
[INFO] [stderr]   Downloaded mcai-client v0.7.0
[INFO] [stderr]   Downloaded mcai-graph v0.3.0
[INFO] [stderr]   Downloaded mcai_models v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50ac3cd5106ef74e1b9a27733b2c52348adafceb116771dec56b61b3d1247f86
[INFO] running `Command { std: "docker" "start" "-a" "50ac3cd5106ef74e1b9a27733b2c52348adafceb116771dec56b61b3d1247f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50ac3cd5106ef74e1b9a27733b2c52348adafceb116771dec56b61b3d1247f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ac3cd5106ef74e1b9a27733b2c52348adafceb116771dec56b61b3d1247f86", kill_on_drop: false }`
[INFO] [stdout] 50ac3cd5106ef74e1b9a27733b2c52348adafceb116771dec56b61b3d1247f86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5fd28792d3909d5407406fef0d0a6fc2b069dc4e868cbf1b985878a701e6aaf
[INFO] running `Command { std: "docker" "start" "-a" "d5fd28792d3909d5407406fef0d0a6fc2b069dc4e868cbf1b985878a701e6aaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling openssl-sys v0.9.76
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]    Compiling polling v2.3.0
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking async-channel v1.7.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/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]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling async-io v1.9.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling semver v1.0.14
[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" "d5fd28792d3909d5407406fef0d0a6fc2b069dc4e868cbf1b985878a701e6aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5fd28792d3909d5407406fef0d0a6fc2b069dc4e868cbf1b985878a701e6aaf", kill_on_drop: false }`
[INFO] [stdout] d5fd28792d3909d5407406fef0d0a6fc2b069dc4e868cbf1b985878a701e6aaf