[INFO] fetching crate cv-bridge 0.3.3...
[INFO] testing cv-bridge-0.3.3 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate cv-bridge 0.3.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate cv-bridge 0.3.3
[INFO] finished tweaking crates.io crate cv-bridge 0.3.3
[INFO] tweaked toml for crates.io crate cv-bridge 0.3.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cv-bridge 0.3.3 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cv-bridge 0.3.3 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded xml-rs v0.3.6
[INFO] [stderr]   Downloaded rosrust v0.9.10
[INFO] [stderr]   Downloaded glob v0.3.1
[INFO] [stderr]   Downloaded language-tags v0.2.2
[INFO] [stderr]   Downloaded serde-xml-rs v0.2.1
[INFO] [stderr]   Downloaded serde_bytes v0.10.5
[INFO] [stderr]   Downloaded bitflags v0.9.1
[INFO] [stderr]   Downloaded crossbeam v0.8.2
[INFO] [stderr]   Downloaded clang-sys v1.4.0
[INFO] [stderr]   Downloaded semver v1.0.16
[INFO] [stderr]   Downloaded xml-rs v0.6.1
[INFO] [stderr]   Downloaded shlex v1.1.0
[INFO] [stderr]   Downloaded clang v2.0.0
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded hyper v0.10.16
[INFO] [stderr]   Downloaded brotli-decompressor v2.3.4
[INFO] [stderr]   Downloaded opencv-binding-generator v0.55.1
[INFO] [stderr]   Downloaded chrono v0.4.23
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[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded deflate v1.0.0
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.89
[INFO] [stderr]   Downloaded multipart v0.18.0
[INFO] [stderr]   Downloaded nix v0.26.2
[INFO] [stderr]   Downloaded time v0.3.17
[INFO] [stderr]   Downloaded cxx-build v1.0.89
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[INFO] [stderr]   Downloaded tiny_http v0.12.0
[INFO] [stderr]   Downloaded rosrust_codegen v0.9.6
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[INFO] [stderr]   Downloaded time v0.1.45
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[INFO] [stderr]   Downloaded link-cplusplus v1.0.8
[INFO] [stderr]   Downloaded iana-time-zone-haiku v0.1.1
[INFO] [stderr]   Downloaded iana-time-zone v0.1.53
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[INFO] [stderr]   Downloaded cxx v1.0.89
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded time-core v0.1.0
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[INFO] [stderr]   Downloaded ctrlc v3.2.5
[INFO] [stderr]   Downloaded array-init v2.1.0
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[INFO] [stderr]   Downloaded gimli v0.27.1
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[INFO] [stderr]   Downloaded safemem v0.3.3
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[INFO] [stderr]   Downloaded opencv v0.76.4
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfd65faf806de2f51cd272a16749628bb9bc75c03b22ed83cda0be85acc8dfce
[INFO] running `Command { std: "docker" "start" "-a" "dfd65faf806de2f51cd272a16749628bb9bc75c03b22ed83cda0be85acc8dfce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfd65faf806de2f51cd272a16749628bb9bc75c03b22ed83cda0be85acc8dfce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfd65faf806de2f51cd272a16749628bb9bc75c03b22ed83cda0be85acc8dfce", kill_on_drop: false }`
[INFO] [stdout] dfd65faf806de2f51cd272a16749628bb9bc75c03b22ed83cda0be85acc8dfce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0800c7921d52e5779a9b2cba162eb527d54a8afa8f1c220462944aa4397e4198
[INFO] running `Command { std: "docker" "start" "-a" "0800c7921d52e5779a9b2cba162eb527d54a8afa8f1c220462944aa4397e4198", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 serde v1.0.152
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling cc v1.0.79
[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" "0800c7921d52e5779a9b2cba162eb527d54a8afa8f1c220462944aa4397e4198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0800c7921d52e5779a9b2cba162eb527d54a8afa8f1c220462944aa4397e4198", kill_on_drop: false }`
[INFO] [stdout] 0800c7921d52e5779a9b2cba162eb527d54a8afa8f1c220462944aa4397e4198