[INFO] fetching crate vsmtp 2.2.1...
[INFO] checking vsmtp-2.2.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[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 cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vsmtp-mail-parser v2.2.1
[INFO] [stderr]   Downloaded vsmtp-server v2.2.1
[INFO] [stderr]   Downloaded vsmtp-plugin-vsl v2.2.1
[INFO] [stderr]   Downloaded vsmtp-auth v2.2.1
[INFO] [stderr]   Downloaded vsmtp-common v2.2.1
[INFO] [stderr]   Downloaded viaspf v0.5.2
[INFO] [stderr]   Downloaded tracing-journald v0.3.0
[INFO] [stderr]   Downloaded console-api v0.4.0
[INFO] [stderr]   Downloaded prost v0.11.8
[INFO] [stderr]   Downloaded console-subscriber v0.1.8
[INFO] [stderr]   Downloaded prost-types v0.11.8
[INFO] [stderr]   Downloaded rsasl v2.0.0
[INFO] [stderr]   Downloaded lettre v0.10.3
[INFO] [stderr]   Downloaded ring-compat v0.7.0
[INFO] [stderr]   Downloaded axum v0.6.11
[INFO] [stderr]   Downloaded tonic v0.8.3
[INFO] [stderr]   Downloaded p256 v0.13.0
[INFO] [stderr]   Downloaded crypto-bigint v0.5.1
[INFO] [stderr]   Downloaded elliptic-curve v0.13.2
[INFO] [stderr]   Downloaded unicode-bidi v0.3.12
[INFO] [stderr]   Downloaded vqueue v2.2.1
[INFO] [stderr]   Downloaded vsmtp-config v2.2.1
[INFO] [stderr]   Downloaded hdrhistogram v7.5.2
[INFO] [stderr]   Downloaded rhai v1.13.0
[INFO] [stderr]   Downloaded rsa v0.8.2
[INFO] [stderr]   Downloaded acid_io v0.1.0
[INFO] [stderr]   Downloaded pkcs8 v0.10.1
[INFO] [stderr]   Downloaded tracing-rfc-5424 v0.1.0
[INFO] [stderr]   Downloaded vsmtp-protocol v2.2.1
[INFO] [stderr]   Downloaded rhai_codegen v1.5.0
[INFO] [stderr]   Downloaded email-encoding v0.2.0
[INFO] [stderr]   Downloaded viaspf-record v0.4.1
[INFO] [stderr]   Downloaded prost-derive v0.11.8
[INFO] [stderr]   Downloaded rhai-autodocs v0.1.6
[INFO] [stderr]   Downloaded tracing-appender v0.2.2
[INFO] [stderr]   Downloaded rhai-dylib v0.1.6
[INFO] [stderr]   Downloaded vsmtp-delivery v2.2.1
[INFO] [stderr]   Downloaded email_address v0.2.4
[INFO] [stderr]   Downloaded ed25519 v2.2.0
[INFO] [stderr]   Downloaded ecdsa v0.16.1
[INFO] [stderr]   Downloaded primeorder v0.13.0
[INFO] [stderr]   Downloaded spki v0.7.0
[INFO] [stderr]   Downloaded signature v2.0.0
[INFO] [stderr]   Downloaded ipconfig v0.3.1
[INFO] [stderr]   Downloaded data-encoding v2.3.3
[INFO] [stderr]   Downloaded quoted_printable v0.4.7
[INFO] [stderr]   Downloaded vsmtp-rule-engine v2.2.1
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70e924e441ed0d16d03973f9b12815dc0d5367f1b33f94e3ca269e7285826925
[INFO] running `Command { std: "docker" "start" "-a" "70e924e441ed0d16d03973f9b12815dc0d5367f1b33f94e3ca269e7285826925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70e924e441ed0d16d03973f9b12815dc0d5367f1b33f94e3ca269e7285826925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e924e441ed0d16d03973f9b12815dc0d5367f1b33f94e3ca269e7285826925", kill_on_drop: false }`
[INFO] [stdout] 70e924e441ed0d16d03973f9b12815dc0d5367f1b33f94e3ca269e7285826925
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07d9afd218ce6d2948369ccb7d466e114004fb8a9adad1a89e7cc633cb81a1a7
[INFO] running `Command { std: "docker" "start" "-a" "07d9afd218ce6d2948369ccb7d466e114004fb8a9adad1a89e7cc633cb81a1a7", 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 version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]    Compiling const-oid v0.9.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling futures-channel 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 generic-array v0.14.6
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling num-bigint-dig v0.8.2
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling untrusted v0.7.1
[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" "07d9afd218ce6d2948369ccb7d466e114004fb8a9adad1a89e7cc633cb81a1a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d9afd218ce6d2948369ccb7d466e114004fb8a9adad1a89e7cc633cb81a1a7", kill_on_drop: false }`
[INFO] [stdout] 07d9afd218ce6d2948369ccb7d466e114004fb8a9adad1a89e7cc633cb81a1a7