[INFO] fetching crate modio-mqttbridge 0.6.1...
[INFO] checking modio-mqttbridge-0.6.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate modio-mqttbridge 0.6.1 into /workspace/builds/worker-7-tc1/source
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate modio-mqttbridge 0.6.1
[INFO] finished tweaking crates.io crate modio-mqttbridge 0.6.1
[INFO] tweaked toml for crates.io crate modio-mqttbridge 0.6.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate modio-mqttbridge 0.6.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate modio-mqttbridge 0.6.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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 unicode-ident v1.0.4
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded zvariant_derive v3.7.1
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded futures-core v0.3.24
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded futures-sink v0.3.24
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded zvariant v3.7.1
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[INFO] [stderr]   Downloaded serde_repr v0.1.9
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.4
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[INFO] [stderr]   Downloaded argh v0.1.9
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[INFO] [stderr]   Downloaded spin v0.9.4
[INFO] [stderr]   Downloaded configparser v3.0.2
[INFO] [stderr]   Downloaded itoa v1.0.3
[INFO] [stderr]   Downloaded async-broadcast v0.4.1
[INFO] [stderr]   Downloaded argh_shared v0.1.9
[INFO] [stderr]   Downloaded ordered-stream v0.0.1
[INFO] [stderr]   Downloaded uds_windows v1.0.2
[INFO] [stderr]   Downloaded polling v2.3.0
[INFO] [stderr]   Downloaded futures-task v0.3.24
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[INFO] [stderr]   Downloaded argh_derive v0.1.9
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[INFO] [stderr]   Downloaded tokio-rustls v0.23.3
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[INFO] [stderr]   Downloaded env_logger v0.9.1
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded async-lock v2.5.0
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.2
[INFO] [stderr]   Downloaded futures v0.3.24
[INFO] [stderr]   Downloaded bytes v1.2.1
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded uuid v1.1.2
[INFO] [stderr]   Downloaded bumpalo v3.11.0
[INFO] [stderr]   Downloaded tracing-core v0.1.29
[INFO] [stderr]   Downloaded rumqttc v0.17.0
[INFO] [stderr]   Downloaded tracing v0.1.36
[INFO] [stderr]   Downloaded zbus_macros v3.2.0
[INFO] [stderr]   Downloaded async-trait v0.1.57
[INFO] [stderr]   Downloaded serde_json v1.0.85
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[INFO] [stderr]   Downloaded aho-corasick v0.7.19
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[INFO] [stderr]   Downloaded parking_lot_core v0.9.3
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[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded futures-channel v0.3.24
[INFO] [stderr]   Downloaded tracing-attributes v0.1.22
[INFO] [stderr]   Downloaded regex-syntax v0.6.27
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded async-task v4.3.0
[INFO] [stderr]   Downloaded futures-macro v0.3.24
[INFO] [stderr]   Downloaded enumflags2 v0.7.5
[INFO] [stderr]   Downloaded async-recursion v0.3.2
[INFO] [stderr]   Downloaded futures-io v0.3.24
[INFO] [stderr]   Downloaded tokio-macros v1.8.0
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[INFO] [stderr]   Downloaded rustls-pemfile v0.3.0
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded libc v0.2.134
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da2a2547630f1808789eb1f822efe8130f697d86411bb2a12c9e250d4cd6c098
[INFO] running `Command { std: "docker" "start" "-a" "da2a2547630f1808789eb1f822efe8130f697d86411bb2a12c9e250d4cd6c098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da2a2547630f1808789eb1f822efe8130f697d86411bb2a12c9e250d4cd6c098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da2a2547630f1808789eb1f822efe8130f697d86411bb2a12c9e250d4cd6c098", kill_on_drop: false }`
[INFO] [stdout] da2a2547630f1808789eb1f822efe8130f697d86411bb2a12c9e250d4cd6c098
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cc3d37292b1b61e9f6a7428d9a6ceda6cefaa08914b3f372b20ea2e97c406cf
[INFO] running `Command { std: "docker" "start" "-a" "3cc3d37292b1b61e9f6a7428d9a6ceda6cefaa08914b3f372b20ea2e97c406cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling polling v2.3.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling async-io v1.9.0
[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-1949cf8c6b5b557f/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]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking async-task v4.3.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking rustls-pemfile v1.0.1
[INFO] [stderr]     Checking async-channel v1.7.1
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking ordered-stream v0.0.1
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling argh_shared v0.1.9
[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" "3cc3d37292b1b61e9f6a7428d9a6ceda6cefaa08914b3f372b20ea2e97c406cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cc3d37292b1b61e9f6a7428d9a6ceda6cefaa08914b3f372b20ea2e97c406cf", kill_on_drop: false }`
[INFO] [stdout] 3cc3d37292b1b61e9f6a7428d9a6ceda6cefaa08914b3f372b20ea2e97c406cf