[INFO] fetching crate ciphercore-base 0.3.1...
[INFO] checking ciphercore-base-0.3.1 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate ciphercore-base 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate ciphercore-base 0.3.1 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ciphercore-base 0.3.1
[INFO] finished tweaking crates.io crate ciphercore-base 0.3.1
[INFO] tweaked toml for crates.io crate ciphercore-base 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate ciphercore-base 0.3.1 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.58
[INFO] [stderr]   Downloaded typetag-impl v0.2.8
[INFO] [stderr]   Downloaded typetag v0.2.8
[INFO] [stderr]   Downloaded ciphercore-utils v0.3.0
[INFO] [stderr]   Downloaded pyo3-macros v0.17.3
[INFO] [stderr]   Downloaded block-padding v0.3.3
[INFO] [stderr]   Downloaded inventory v0.3.6
[INFO] [stderr]   Downloaded pywrapper-macro v0.3.1
[INFO] [stderr]   Downloaded derive_arbitrary v1.3.0
[INFO] [stderr]   Downloaded arbitrary v1.3.0
[INFO] [stderr]   Downloaded pyo3-build-config v0.17.3
[INFO] [stderr]   Downloaded target-lexicon v0.12.7
[INFO] [stderr]   Downloaded pyo3-ffi v0.17.3
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] [stderr]   Downloaded regex v1.8.2
[INFO] [stderr]   Downloaded pyo3 v0.17.3
[INFO] [stderr]   Downloaded tokio v1.28.1
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.17.3
[INFO] [stderr]   Downloaded tonic v0.8.3
[INFO] [stderr]   Downloaded serde_test v1.0.163
[INFO] [stderr]   Downloaded ghost v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3df8fe433585ded041f471a593a9e8de1aa47eb7d0f628b62dc442bafac918c4
[INFO] running `Command { std: "docker" "start" "-a" "3df8fe433585ded041f471a593a9e8de1aa47eb7d0f628b62dc442bafac918c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3df8fe433585ded041f471a593a9e8de1aa47eb7d0f628b62dc442bafac918c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df8fe433585ded041f471a593a9e8de1aa47eb7d0f628b62dc442bafac918c4", kill_on_drop: false }`
[INFO] [stdout] 3df8fe433585ded041f471a593a9e8de1aa47eb7d0f628b62dc442bafac918c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcaec513c4114833d6080fe7b9db42a227689dbf1d919c152e61536500568673
[INFO] running `Command { std: "docker" "start" "-a" "bcaec513c4114833d6080fe7b9db42a227689dbf1d919c152e61536500568673", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling erased-serde v0.3.25
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking atomic_refcell v0.1.10
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.58/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 futures-sink v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]    Compiling serde_test v1.0.163
[INFO] [stderr]     Checking petgraph v0.6.3
[INFO] [stderr]     Checking block-padding v0.3.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bcaec513c4114833d6080fe7b9db42a227689dbf1d919c152e61536500568673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcaec513c4114833d6080fe7b9db42a227689dbf1d919c152e61536500568673", kill_on_drop: false }`
[INFO] [stdout] bcaec513c4114833d6080fe7b9db42a227689dbf1d919c152e61536500568673
