[INFO] fetching crate vsmtp 2.2.1...
[INFO] testing vsmtp-2.2.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate vsmtp 2.2.1 into /workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vsmtp 2.2.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v2.0.0
[INFO] [stderr]   Downloaded vsmtp-plugin-vsl v2.2.1
[INFO] [stderr]   Downloaded tokio-stream v0.1.12
[INFO] [stderr]   Downloaded time-macros v0.2.8
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[INFO] [stderr]   Downloaded vsmtp-server v2.2.1
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[INFO] [stderr]   Downloaded vsmtp-protocol v2.2.1
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[INFO] [stderr]   Downloaded prost v0.11.8
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[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.93
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[INFO] [stderr]   Downloaded futures-executor v0.3.27
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded vsmtp-config v2.2.1
[INFO] [stderr]   Downloaded rhai_codegen v1.5.0
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[INFO] [stderr]   Downloaded cxx-build v1.0.93
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[INFO] [stderr]   Downloaded serde_with_macros v2.3.1
[INFO] [stderr]   Downloaded p256 v0.13.0
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[INFO] [stderr]   Downloaded sec1 v0.7.1
[INFO] [stderr]   Downloaded rustversion v1.0.12
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[INFO] [stderr]   Downloaded either v1.8.1
[INFO] [stderr]   Downloaded serde_derive v1.0.159
[INFO] [stderr]   Downloaded futures v0.3.27
[INFO] [stderr]   Downloaded thrift v0.16.0
[INFO] [stderr]   Downloaded opentelemetry v0.18.0
[INFO] [stderr]   Downloaded clap_derive v4.2.0
[INFO] [stderr]   Downloaded urlencoding v2.1.2
[INFO] [stderr]   Downloaded vsmtp-delivery v2.2.1
[INFO] [stderr]   Downloaded const-random v0.1.15
[INFO] [stderr]   Downloaded email_address v0.2.4
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.93
[INFO] [stderr]   Downloaded darling_macro v0.14.4
[INFO] [stderr]   Downloaded time-core v0.1.0
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[INFO] [stderr]   Downloaded rhai-dylib v0.1.6
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[INFO] [stderr]   Downloaded der v0.6.1
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[INFO] [stderr]   Downloaded trust-dns-resolver v0.22.0
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[INFO] [stderr]   Downloaded is-terminal v0.4.4
[INFO] [stderr]   Downloaded users v0.11.0
[INFO] [stderr]   Downloaded ipconfig v0.3.1
[INFO] [stderr]   Downloaded base64 v0.21.0
[INFO] [stderr]   Downloaded viaspf-record v0.4.1
[INFO] [stderr]   Downloaded viaspf v0.5.2
[INFO] [stderr]   Downloaded vsmtp-auth v2.2.1
[INFO] [stderr]   Downloaded clap_lex v0.4.1
[INFO] [stderr]   Downloaded aead v0.5.1
[INFO] [stderr]   Downloaded ecdsa v0.16.1
[INFO] [stderr]   Downloaded spki v0.6.0
[INFO] [stderr]   Downloaded unicode-bidi v0.3.12
[INFO] [stderr]   Downloaded thiserror v1.0.40
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.11
[INFO] [stderr]   Downloaded erased-serde v0.3.25
[INFO] [stderr]   Downloaded iana-time-zone v0.1.53
[INFO] [stderr]   Downloaded primeorder v0.13.0
[INFO] [stderr]   Downloaded pkcs8 v0.10.1
[INFO] [stderr]   Downloaded signature v2.0.0
[INFO] [stderr]   Downloaded sha2 v0.10.6
[INFO] [stderr]   Downloaded function_name v0.3.0
[INFO] [stderr]   Downloaded spki v0.7.0
[INFO] [stderr]   Downloaded pem-rfc7468 v0.6.0
[INFO] [stderr]   Downloaded anyhow v1.0.70
[INFO] [stderr]   Downloaded darling v0.14.4
[INFO] [stderr]   Downloaded pkcs1 v0.4.1
[INFO] [stderr]   Downloaded enum-as-inner v0.5.1
[INFO] [stderr]   Downloaded futures-channel v0.3.27
[INFO] [stderr]   Downloaded futures-macro v0.3.27
[INFO] [stderr]   Downloaded async-trait v0.1.68
[INFO] [stderr]   Downloaded vsmtp-common v2.2.1
[INFO] [stderr]   Downloaded pkcs8 v0.9.0
[INFO] [stderr]   Downloaded const-oid v0.9.2
[INFO] [stderr]   Downloaded widestring v0.5.1
[INFO] [stderr]   Downloaded vsmtp-rule-engine v2.2.1
[INFO] [stderr]   Downloaded vsmtp-mail-parser v2.2.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.40
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b04cac9c4b4d7bdef08564e547363ae966a99bbeb0a386307fb722c5cf4f111a
[INFO] running `Command { std: "docker" "start" "-a" "b04cac9c4b4d7bdef08564e547363ae966a99bbeb0a386307fb722c5cf4f111a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b04cac9c4b4d7bdef08564e547363ae966a99bbeb0a386307fb722c5cf4f111a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b04cac9c4b4d7bdef08564e547363ae966a99bbeb0a386307fb722c5cf4f111a", kill_on_drop: false }`
[INFO] [stdout] b04cac9c4b4d7bdef08564e547363ae966a99bbeb0a386307fb722c5cf4f111a
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7af962748f9fade81b0d60abf714640a7d2864d05d2aef623b0e47c5f48d7e02
[INFO] running `Command { std: "docker" "start" "-a" "7af962748f9fade81b0d60abf714640a7d2864d05d2aef623b0e47c5f48d7e02", 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 autocfg v1.1.0
[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 syn v1.0.109
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling memchr v2.5.0
[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 futures-core v0.3.27
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling unicode-bidi v0.3.12
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling tokio v1.27.0
[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 subtle v2.5.0
[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] 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 futures-util v0.3.27
[INFO] [stderr]    Compiling base64 v0.21.0
[INFO] [stderr]    Compiling der v0.7.1
[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" "7af962748f9fade81b0d60abf714640a7d2864d05d2aef623b0e47c5f48d7e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af962748f9fade81b0d60abf714640a7d2864d05d2aef623b0e47c5f48d7e02", kill_on_drop: false }`
[INFO] [stdout] 7af962748f9fade81b0d60abf714640a7d2864d05d2aef623b0e47c5f48d7e02