[INFO] fetching crate engula-client 0.4.0...
[INFO] checking engula-client-0.4.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate engula-client 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate engula-client 0.4.0 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 engula-client 0.4.0
[INFO] finished tweaking crates.io crate engula-client 0.4.0
[INFO] tweaked toml for crates.io crate engula-client 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate engula-client 0.4.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-attributes v0.1.23
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded sync_wrapper v0.1.1
[INFO] [stderr]   Downloaded http-range-header v0.3.0
[INFO] [stderr]   Downloaded prost-derive v0.10.1
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded futures-sink v0.3.24
[INFO] [stderr]   Downloaded cmake v0.1.48
[INFO] [stderr]   Downloaded prost-types v0.10.1
[INFO] [stderr]   Downloaded which v4.3.0
[INFO] [stderr]   Downloaded tonic-build v0.7.2
[INFO] [stderr]   Downloaded engula-api v0.4.0
[INFO] [stderr]   Downloaded futures-executor v0.3.24
[INFO] [stderr]   Downloaded futures v0.3.24
[INFO] [stderr]   Downloaded prettyplease v0.1.20
[INFO] [stderr]   Downloaded petgraph v0.6.2
[INFO] [stderr]   Downloaded axum v0.5.16
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.16
[INFO] [stderr]   Downloaded tower-http v0.3.4
[INFO] [stderr]   Downloaded thiserror-impl v1.0.37
[INFO] [stderr]   Downloaded thiserror v1.0.37
[INFO] [stderr]   Downloaded async-stream-impl v0.3.3
[INFO] [stderr]   Downloaded async-stream v0.3.3
[INFO] [stderr]   Downloaded async-trait v0.1.57
[INFO] [stderr]   Downloaded axum-core v0.2.8
[INFO] [stderr]   Downloaded matchit v0.5.0
[INFO] [stderr]   Downloaded prost v0.10.4
[INFO] [stderr]   Downloaded either v1.8.0
[INFO] [stderr]   Downloaded tokio-stream v0.1.11
[INFO] [stderr]   Downloaded tonic v0.7.2
[INFO] [stderr]   Downloaded prost-build v0.10.4
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39a657446ab25a7d0c595a4455221addf3f587821edabf429697ffd6cfd2f008
[INFO] running `Command { std: "docker" "start" "-a" "39a657446ab25a7d0c595a4455221addf3f587821edabf429697ffd6cfd2f008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39a657446ab25a7d0c595a4455221addf3f587821edabf429697ffd6cfd2f008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39a657446ab25a7d0c595a4455221addf3f587821edabf429697ffd6cfd2f008", kill_on_drop: false }`
[INFO] [stdout] 39a657446ab25a7d0c595a4455221addf3f587821edabf429697ffd6cfd2f008
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d608c2e06f7d6045a23a9855dffac487b0f71698cae97c16bd93b6a574d52a72
[INFO] running `Command { std: "docker" "start" "-a" "d608c2e06f7d6045a23a9855dffac487b0f71698cae97c16bd93b6a574d52a72", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[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]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling prettyplease v0.1.20
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking httpdate v1.0.2
[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" "d608c2e06f7d6045a23a9855dffac487b0f71698cae97c16bd93b6a574d52a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d608c2e06f7d6045a23a9855dffac487b0f71698cae97c16bd93b6a574d52a72", kill_on_drop: false }`
[INFO] [stdout] d608c2e06f7d6045a23a9855dffac487b0f71698cae97c16bd93b6a574d52a72
