[INFO] fetching crate prime_bench 0.1.2...
[INFO] checking prime_bench-0.1.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate prime_bench 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate prime_bench 0.1.2
[INFO] finished tweaking crates.io crate prime_bench 0.1.2
[INFO] tweaked toml for crates.io crate prime_bench 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate prime_bench 0.1.2 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate prime_bench 0.1.2 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_macros v0.11.1
[INFO] [stderr]   Downloaded clipboard_x11 v0.4.0
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.4
[INFO] [stderr]   Downloaded window_clipboard v0.2.4
[INFO] [stderr]   Downloaded iced_winit v0.9.1
[INFO] [stderr]   Downloaded iced_wgpu v0.10.0
[INFO] [stderr]   Downloaded iced_futures v0.6.0
[INFO] [stderr]   Downloaded xml-rs v0.8.13
[INFO] [stderr]   Downloaded toml_edit v0.19.10
[INFO] [stderr]   Downloaded palette v0.6.1
[INFO] [stderr]   Downloaded ttf-parser v0.19.0
[INFO] [stderr]   Downloaded iced_native v0.10.3
[INFO] [stderr]   Downloaded wgpu_glyph v0.19.0
[INFO] [stderr]   Downloaded iced_graphics v0.8.0
[INFO] [stderr]   Downloaded glyph_brush v0.7.7
[INFO] [stderr]   Downloaded iced_core v0.9.0
[INFO] [stderr]   Downloaded iced_style v0.8.0
[INFO] [stderr]   Downloaded palette_derive v0.6.1
[INFO] [stderr]   Downloaded ordered-float v3.7.0
[INFO] [stderr]   Downloaded iced v0.9.0
[INFO] [stderr]   Downloaded x11rb v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 071f20d2aff0abd55d0425fc5929299d4676acdbc52c4602e9ce95357d7b2fec
[INFO] running `Command { std: "docker" "start" "-a" "071f20d2aff0abd55d0425fc5929299d4676acdbc52c4602e9ce95357d7b2fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "071f20d2aff0abd55d0425fc5929299d4676acdbc52c4602e9ce95357d7b2fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071f20d2aff0abd55d0425fc5929299d4676acdbc52c4602e9ce95357d7b2fec", kill_on_drop: false }`
[INFO] [stdout] 071f20d2aff0abd55d0425fc5929299d4676acdbc52c4602e9ce95357d7b2fec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32ab898500e3fea0e6045291e097ce8ae3f6f4f534b568dcb6cbef68b546d0e2
[INFO] running `Command { std: "docker" "start" "-a" "32ab898500e3fea0e6045291e097ce8ae3f6f4f534b568dcb6cbef68b546d0e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking once_cell v1.17.2
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling xml-rs v0.8.13
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 memoffset v0.8.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling phf_shared v0.11.1
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking futures-sink v0.3.28
[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" "32ab898500e3fea0e6045291e097ce8ae3f6f4f534b568dcb6cbef68b546d0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32ab898500e3fea0e6045291e097ce8ae3f6f4f534b568dcb6cbef68b546d0e2", kill_on_drop: false }`
[INFO] [stdout] 32ab898500e3fea0e6045291e097ce8ae3f6f4f534b568dcb6cbef68b546d0e2