[INFO] fetching crate memedit 0.1.0...
[INFO] testing memedit-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate memedit 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate memedit 0.1.0
[INFO] finished tweaking crates.io crate memedit 0.1.0
[INFO] tweaked toml for crates.io crate memedit 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate memedit 0.1.0 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 memedit 0.1.0 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 windows-targets v0.48.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.11
[INFO] [stderr]   Downloaded owning_ref v0.4.1
[INFO] [stderr]   Downloaded enum-map-derive v0.11.0
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[INFO] [stderr]   Downloaded darling v0.20.1
[INFO] [stderr]   Downloaded enum-map v2.5.0
[INFO] [stderr]   Downloaded anyhow v1.0.71
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.15
[INFO] [stderr]   Downloaded proc-macro2 v1.0.59
[INFO] [stderr]   Downloaded cursive v0.20.0
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[INFO] [stderr]   Downloaded js-sys v0.3.63
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.86
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[INFO] [stderr]   Downloaded chrono v0.4.24
[INFO] [stderr]   Downloaded signal-hook v0.3.15
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.9
[INFO] [stderr]   Downloaded cursive_core v0.3.7
[INFO] [stderr]   Downloaded iana-time-zone v0.1.56
[INFO] [stderr]   Downloaded ncurses v5.101.0
[INFO] [stderr]   Downloaded syn v2.0.18
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded darling_core v0.20.1
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[INFO] [stderr]   Downloaded num-complex v0.4.3
[INFO] [stderr]   Downloaded time-core v0.1.1
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[INFO] [stderr]   Downloaded quote v1.0.28
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.86
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.48.0
[INFO] [stderr]   Downloaded libc v0.2.144
[INFO] [stderr]   Downloaded num-traits v0.2.15
[INFO] [stderr]   Downloaded hermit-abi v0.3.1
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.48.0
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[INFO] [stderr]   Downloaded procfs v0.15.1
[INFO] [stderr]   Downloaded windows_i686_gnu v0.48.0
[INFO] [stderr]   Downloaded enumset_derive v0.8.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.1.4
[INFO] [stderr]   Downloaded enumset v1.1.2
[INFO] [stderr]   Downloaded num-iter v0.1.43
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[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.86
[INFO] [stderr]   Downloaded cc v1.0.79
[INFO] [stderr]   Downloaded errno v0.3.1
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a73d9061de817a29529e4d3961e5da7adddeb557aad4b34dd57babdc80c6d00
[INFO] running `Command { std: "docker" "start" "-a" "9a73d9061de817a29529e4d3961e5da7adddeb557aad4b34dd57babdc80c6d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a73d9061de817a29529e4d3961e5da7adddeb557aad4b34dd57babdc80c6d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a73d9061de817a29529e4d3961e5da7adddeb557aad4b34dd57babdc80c6d00", kill_on_drop: false }`
[INFO] [stdout] 9a73d9061de817a29529e4d3961e5da7adddeb557aad4b34dd57babdc80c6d00
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6120ebd17b7d96e8a5acc239618f319c0a889d013c970040d11c435a47de348
[INFO] running `Command { std: "docker" "start" "-a" "d6120ebd17b7d96e8a5acc239618f319c0a889d013c970040d11c435a47de348", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling rustix v0.36.14
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling xi-unicode v0.3.0
[INFO] [stderr]    Compiling procfs v0.15.1
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.56
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[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" "d6120ebd17b7d96e8a5acc239618f319c0a889d013c970040d11c435a47de348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6120ebd17b7d96e8a5acc239618f319c0a889d013c970040d11c435a47de348", kill_on_drop: false }`
[INFO] [stdout] d6120ebd17b7d96e8a5acc239618f319c0a889d013c970040d11c435a47de348