[INFO] fetching crate vsmtp 2.2.1...
[INFO] building vsmtp-2.2.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate vsmtp 2.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate vsmtp 2.2.1
[INFO] finished tweaking crates.io crate vsmtp 2.2.1
[INFO] tweaked toml for crates.io crate vsmtp 2.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vsmtp 2.2.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vsmtp 2.2.1 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aead v0.5.1
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[INFO] [stderr]   Downloaded vsmtp-config v2.2.1
[INFO] [stderr]   Downloaded clap v4.2.0
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[INFO] [stderr]   Downloaded futures-core v0.3.27
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[INFO] [stderr]   Downloaded vsmtp-delivery v2.2.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.93
[INFO] [stderr]   Downloaded uuid v1.3.0
[INFO] [stderr]   Downloaded der v0.7.1
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[INFO] [stderr]   Downloaded cxx v1.0.93
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[INFO] [stderr]   Downloaded vsmtp-common v2.2.1
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[INFO] [stderr]   Downloaded function_name v0.3.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.29.0
[INFO] [stderr]   Downloaded serde_with v2.3.1
[INFO] [stderr]   Downloaded vsmtp-protocol v2.2.1
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.11
[INFO] [stderr]   Downloaded users v0.11.0
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[INFO] [stderr]   Downloaded stringprep v0.1.2
[INFO] [stderr]   Downloaded ed25519 v2.2.0
[INFO] [stderr]   Downloaded ecdsa v0.16.1
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[INFO] [stderr]   Downloaded rhai v1.13.0
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[INFO] [stderr]   Downloaded trust-dns-resolver v0.22.0
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[INFO] [stderr]   Downloaded async-stream-impl v0.3.4
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[INFO] [stderr]   Downloaded iprange v0.6.7
[INFO] [stderr]   Downloaded regex v1.7.3
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[INFO] [stderr]   Downloaded acid_io v0.1.0
[INFO] [stderr]   Downloaded scratch v1.0.5
[INFO] [stderr]   Downloaded sec1 v0.7.1
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[INFO] [stderr]   Downloaded ipconfig v0.3.1
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[INFO] [stderr]   Downloaded anstyle v0.3.5
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded pkcs8 v0.10.1
[INFO] [stderr]   Downloaded futures v0.3.27
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[INFO] [stderr]   Downloaded prost v0.11.8
[INFO] [stderr]   Downloaded prost-derive v0.11.8
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[INFO] [stderr]   Downloaded futures-macro v0.3.27
[INFO] [stderr]   Downloaded serde v1.0.159
[INFO] [stderr]   Downloaded proc-macro2 v1.0.52
[INFO] [stderr]   Downloaded matchit v0.7.0
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[INFO] [stderr]   Downloaded tokio v1.27.0
[INFO] [stderr]   Downloaded vsmtp-rule-engine v2.2.1
[INFO] [stderr]   Downloaded rhai-autodocs v0.1.6
[INFO] [stderr]   Downloaded tracing-appender v0.2.2
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.93
[INFO] [stderr]   Downloaded vsmtp-mail-parser v2.2.1
[INFO] [stderr]   Downloaded ring-compat v0.7.0
[INFO] [stderr]   Downloaded rsa v0.8.2
[INFO] [stderr]   Downloaded tokio-macros v2.0.0
[INFO] [stderr]   Downloaded vsmtp-server v2.2.1
[INFO] [stderr]   Downloaded spki v0.7.0
[INFO] [stderr]   Downloaded vsmtp-auth v2.2.1
[INFO] [stderr]   Downloaded futures-task v0.3.27
[INFO] [stderr]   Downloaded rsasl v2.0.0
[INFO] [stderr]   Downloaded cxx-build v1.0.93
[INFO] [stderr]   Downloaded windows v0.29.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91b8ebc07c07c9ebd033c124d2d92d9a98bdb88a423894fc36869f44c7bb1a7c
[INFO] running `Command { std: "docker" "start" "-a" "91b8ebc07c07c9ebd033c124d2d92d9a98bdb88a423894fc36869f44c7bb1a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91b8ebc07c07c9ebd033c124d2d92d9a98bdb88a423894fc36869f44c7bb1a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91b8ebc07c07c9ebd033c124d2d92d9a98bdb88a423894fc36869f44c7bb1a7c", kill_on_drop: false }`
[INFO] [stdout] 91b8ebc07c07c9ebd033c124d2d92d9a98bdb88a423894fc36869f44c7bb1a7c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 136f0256dba32f63449a14eda659601c2b8ca4931a4a8ee7a45b14551a2fbf1f
[INFO] running `Command { std: "docker" "start" "-a" "136f0256dba32f63449a14eda659601c2b8ca4931a4a8ee7a45b14551a2fbf1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling const-oid v0.9.2
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.12
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling base64 v0.21.0
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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 idna v0.3.0
[INFO] [stderr]    Compiling der v0.7.1
[INFO] [stderr]    Compiling futures-io v0.3.27
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling rustls-pemfile v1.0.2
[INFO] [stderr]    Compiling ipnet v2.7.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling data-encoding v2.3.3
[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" "136f0256dba32f63449a14eda659601c2b8ca4931a4a8ee7a45b14551a2fbf1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136f0256dba32f63449a14eda659601c2b8ca4931a4a8ee7a45b14551a2fbf1f", kill_on_drop: false }`
[INFO] [stdout] 136f0256dba32f63449a14eda659601c2b8ca4931a4a8ee7a45b14551a2fbf1f