[INFO] fetching crate rmg 0.5.11...
[INFO] testing rmg-0.5.11 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate rmg 0.5.11 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rmg 0.5.11
[INFO] finished tweaking crates.io crate rmg 0.5.11
[INFO] tweaked toml for crates.io crate rmg 0.5.11 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmg 0.5.11 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 rmg 0.5.11 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] warning: unused manifest key: bench.0.plugin
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strict-num v0.1.0
[INFO] [stderr]   Downloaded usvg-tree v0.32.0
[INFO] [stderr]   Downloaded zip v0.6.4
[INFO] [stderr]   Downloaded zune-inflate v0.2.53
[INFO] [stderr]   Downloaded rustix v0.37.14
[INFO] [stderr]   Downloaded rctree v0.5.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.15
[INFO] [stderr]   Downloaded svgtypes v0.11.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.7
[INFO] [stderr]   Downloaded pico-args v0.5.0
[INFO] [stderr]   Downloaded simd-adler32 v0.3.5
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[INFO] [stderr]   Downloaded minifb v0.24.0
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[INFO] [stderr]   Downloaded serde_derive v1.0.160
[INFO] [stderr]   Downloaded os_str_bytes v6.5.0
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[INFO] [stderr]   Downloaded sysinfo v0.28.4
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[INFO] [stderr]   Downloaded crossbeam-channel v0.5.8
[INFO] [stderr]   Downloaded resvg v0.32.0
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[INFO] [stderr]   Downloaded roxmltree v0.18.0
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[INFO] [stderr]   Downloaded serde v1.0.160
[INFO] [stderr]   Downloaded usvg-parser v0.32.0
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded bytemuck v1.13.1
[INFO] [stderr]   Downloaded unicode-script v0.5.5
[INFO] [stderr]   Downloaded image v0.24.6
[INFO] [stderr]   Downloaded xml-rs v0.8.4
[INFO] [stderr]   Downloaded tiny-skia-path v0.9.0
[INFO] [stderr]   Downloaded regex v1.8.1
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[INFO] [stderr]   Downloaded unicode-general-category v0.6.0
[INFO] [stderr]   Downloaded uuid v1.3.1
[INFO] [stderr]   Downloaded enumn v0.1.8
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] [stderr]   Downloaded fontdb v0.13.1
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[INFO] [stderr]   Downloaded filetime v0.2.21
[INFO] [stderr]   Downloaded imagesize v0.11.0
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[INFO] [stderr]   Downloaded libheif-sys v1.14.2
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[INFO] [stderr]   Downloaded libheif-rs v0.19.2
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 65ccb6c6f0837cb82367148fb18878416266ac53b0016c77700ed4e4c1fa70f3
[INFO] running `Command { std: "docker" "start" "-a" "65ccb6c6f0837cb82367148fb18878416266ac53b0016c77700ed4e4c1fa70f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65ccb6c6f0837cb82367148fb18878416266ac53b0016c77700ed4e4c1fa70f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ccb6c6f0837cb82367148fb18878416266ac53b0016c77700ed4e4c1fa70f3", kill_on_drop: false }`
[INFO] [stdout] 65ccb6c6f0837cb82367148fb18878416266ac53b0016c77700ed4e4c1fa70f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 87e7061e530c71a4b82a387e3942c2d05557823b054622ba5ed6c4fabb7bed90
[INFO] running `Command { std: "docker" "start" "-a" "87e7061e530c71a4b82a387e3942c2d05557823b054622ba5ed6c4fabb7bed90", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: bench.0.plugin
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling cpufeatures v0.2.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 log v0.4.17
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling thiserror v1.0.40
[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" "87e7061e530c71a4b82a387e3942c2d05557823b054622ba5ed6c4fabb7bed90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e7061e530c71a4b82a387e3942c2d05557823b054622ba5ed6c4fabb7bed90", kill_on_drop: false }`
[INFO] [stdout] 87e7061e530c71a4b82a387e3942c2d05557823b054622ba5ed6c4fabb7bed90