[INFO] fetching crate memflow 0.2.0-beta10...
[INFO] checking memflow-0.2.0-beta10 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate memflow 0.2.0-beta10 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate memflow 0.2.0-beta10 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memflow 0.2.0-beta10
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate memflow 0.2.0-beta10
[INFO] tweaked toml for crates.io crate memflow 0.2.0-beta10 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate memflow 0.2.0-beta10 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded x86_64 v0.14.10
[INFO] [stderr]   Downloaded pelite-macros v0.1.1
[INFO] [stderr]   Downloaded volatile v0.4.6
[INFO] [stderr]   Downloaded toml_edit v0.19.8
[INFO] [stderr]   Downloaded as_derive_utils v0.10.3
[INFO] [stderr]   Downloaded abi_stable_shared v0.10.3
[INFO] [stderr]   Downloaded generational-arena v0.2.8
[INFO] [stderr]   Downloaded tstr_proc_macros v0.2.2
[INFO] [stderr]   Downloaded tstr v0.2.3
[INFO] [stderr]   Downloaded goblin v0.5.4
[INFO] [stderr]   Downloaded abi_stable_derive v0.10.3
[INFO] [stderr]   Downloaded abi_stable v0.10.4
[INFO] [stderr]   Downloaded pelite v0.9.0
[INFO] [stderr]   Downloaded clap v4.1.13
[INFO] [stderr]   Downloaded repr_offset v0.2.2
[INFO] [stderr]   Downloaded cglue-macro v0.2.3
[INFO] [stderr]   Downloaded cglue v0.2.12
[INFO] [stderr]   Downloaded coarsetime v0.1.23
[INFO] [stderr]   Downloaded dataview v1.0.1
[INFO] [stderr]   Downloaded fixed-slice-vec v0.10.0
[INFO] [stderr]   Downloaded scroll_derive v0.11.0
[INFO] [stderr]   Downloaded memflow-derive v0.2.0-beta3
[INFO] [stderr]   Downloaded dataview v0.1.2
[INFO] [stderr]   Downloaded rangemap v1.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.53
[INFO] [stderr]   Downloaded winnow v0.4.1
[INFO] [stderr]   Downloaded cglue-gen v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36749ed5fed4a9575716058bea63c32d651a4e508194cdb319fd16a5b7312f83
[INFO] running `Command { std: "docker" "start" "-a" "36749ed5fed4a9575716058bea63c32d651a4e508194cdb319fd16a5b7312f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36749ed5fed4a9575716058bea63c32d651a4e508194cdb319fd16a5b7312f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36749ed5fed4a9575716058bea63c32d651a4e508194cdb319fd16a5b7312f83", kill_on_drop: false }`
[INFO] [stdout] 36749ed5fed4a9575716058bea63c32d651a4e508194cdb319fd16a5b7312f83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff01eac40054ea80ca1ba2364f44ca9dc25caa2caafeabfd27e5c5657f7713ef
[INFO] running `Command { std: "docker" "start" "-a" "ff01eac40054ea80ca1ba2364f44ca9dc25caa2caafeabfd27e5c5657f7713ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling serde_derive v1.0.158
[INFO] [stderr]    Compiling serde v1.0.158
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling core_extensions_proc_macros v1.5.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling winnow v0.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling tstr_proc_macros v0.2.2
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.53/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 rustc_version v0.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling rustix v0.36.11
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ff01eac40054ea80ca1ba2364f44ca9dc25caa2caafeabfd27e5c5657f7713ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff01eac40054ea80ca1ba2364f44ca9dc25caa2caafeabfd27e5c5657f7713ef", kill_on_drop: false }`
[INFO] [stdout] ff01eac40054ea80ca1ba2364f44ca9dc25caa2caafeabfd27e5c5657f7713ef