[INFO] fetching crate carrot-cake 0.1.4...
[INFO] checking carrot-cake-0.1.4 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate carrot-cake 0.1.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate carrot-cake 0.1.4
[INFO] finished tweaking crates.io crate carrot-cake 0.1.4
[INFO] tweaked toml for crates.io crate carrot-cake 0.1.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate carrot-cake 0.1.4 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate carrot-cake 0.1.4 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.84
[INFO] [stderr]   Downloaded getrandom v0.2.8
[INFO] [stderr]   Downloaded uuid v1.3.0
[INFO] [stderr]   Downloaded amq-protocol-tcp v7.0.1
[INFO] [stderr]   Downloaded reactor-trait v1.1.0
[INFO] [stderr]   Downloaded pinky-swear v6.1.0
[INFO] [stderr]   Downloaded async-reactor-trait v1.1.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] [stderr]   Downloaded atomic-waker v1.1.0
[INFO] [stderr]   Downloaded tcp-stream v0.24.4
[INFO] [stderr]   Downloaded rc2 v0.8.1
[INFO] [stderr]   Downloaded async-executor v1.5.0
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded anyhow v1.0.70
[INFO] [stderr]   Downloaded polling v2.6.0
[INFO] [stderr]   Downloaded base64 v0.21.0
[INFO] [stderr]   Downloaded fake v2.6.1
[INFO] [stderr]   Downloaded unidecode v0.3.0
[INFO] [stderr]   Downloaded lapin v2.1.1
[INFO] [stderr]   Downloaded mio v0.8.6
[INFO] [stderr]   Downloaded js-sys v0.3.61
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.84
[INFO] [stderr]   Downloaded chrono v0.4.26
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded openssl v0.10.54
[INFO] [stderr]   Downloaded bumpalo v3.12.0
[INFO] [stderr]   Downloaded security-framework v2.8.2
[INFO] [stderr]   Downloaded rustix v0.37.13
[INFO] [stderr]   Downloaded tracing-core v0.1.30
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded flume v0.10.14
[INFO] [stderr]   Downloaded iana-time-zone v0.1.57
[INFO] [stderr]   Downloaded des v0.8.1
[INFO] [stderr]   Downloaded yasna v0.5.1
[INFO] [stderr]   Downloaded amq-protocol v7.0.1
[INFO] [stderr]   Downloaded futures-lite v1.12.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.23
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded serde_derive v1.0.159
[INFO] [stderr]   Downloaded serde v1.0.159
[INFO] [stderr]   Downloaded blocking v1.3.0
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] [stderr]   Downloaded async-lock v2.7.0
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded security-framework-sys v2.8.0
[INFO] [stderr]   Downloaded tokio v1.27.0
[INFO] [stderr]   Downloaded web-sys v0.3.61
[INFO] [stderr]   Downloaded tempfile v3.6.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.84
[INFO] [stderr]   Downloaded async-channel v1.8.0
[INFO] [stderr]   Downloaded concurrent-queue v2.1.0
[INFO] [stderr]   Downloaded p12 v0.6.3
[INFO] [stderr]   Downloaded rustls-connector v0.16.1
[INFO] [stderr]   Downloaded amq-protocol-types v7.0.1
[INFO] [stderr]   Downloaded amq-protocol-uri v7.0.1
[INFO] [stderr]   Downloaded cookie-factory v0.3.2
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded errno v0.3.0
[INFO] [stderr]   Downloaded shutdown-handler v0.1.0
[INFO] [stderr]   Downloaded tokio-executor-trait v2.1.1
[INFO] [stderr]   Downloaded sha1 v0.10.5
[INFO] [stderr]   Downloaded async-global-executor-trait v2.1.0
[INFO] [stderr]   Downloaded redact v0.1.4
[INFO] [stderr]   Downloaded executor-trait v2.1.0
[INFO] [stderr]   Downloaded serde-aux v4.2.0
[INFO] [stderr]   Downloaded task-local-extensions v0.1.4
[INFO] [stderr]   Downloaded tokio-macros v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d62ee6c8f4be8cf5534daba8bbd7b7edc26c82c20a93c1d06ac7d2b2bb41ad1
[INFO] running `Command { std: "docker" "start" "-a" "8d62ee6c8f4be8cf5534daba8bbd7b7edc26c82c20a93c1d06ac7d2b2bb41ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d62ee6c8f4be8cf5534daba8bbd7b7edc26c82c20a93c1d06ac7d2b2bb41ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d62ee6c8f4be8cf5534daba8bbd7b7edc26c82c20a93c1d06ac7d2b2bb41ad1", kill_on_drop: false }`
[INFO] [stdout] 8d62ee6c8f4be8cf5534daba8bbd7b7edc26c82c20a93c1d06ac7d2b2bb41ad1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b75fba5ad61f9e1e770316941876b76c462653cc2270766dfc30bd16527f023
[INFO] running `Command { std: "docker" "start" "-a" "3b75fba5ad61f9e1e770316941876b76c462653cc2270766dfc30bd16527f023", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v1.0.109
[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" "3b75fba5ad61f9e1e770316941876b76c462653cc2270766dfc30bd16527f023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b75fba5ad61f9e1e770316941876b76c462653cc2270766dfc30bd16527f023", kill_on_drop: false }`
[INFO] [stdout] 3b75fba5ad61f9e1e770316941876b76c462653cc2270766dfc30bd16527f023