[INFO] fetching crate nyoom 0.3.5...
[INFO] building nyoom-0.3.5 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate nyoom 0.3.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate nyoom 0.3.5
[INFO] finished tweaking crates.io crate nyoom 0.3.5
[INFO] tweaked toml for crates.io crate nyoom 0.3.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nyoom 0.3.5 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nyoom 0.3.5 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaf5061003cd8c306a6aaa0c2fca7ddcaf5d2350808d07bea9b6f9d71d65d7dc
[INFO] running `Command { std: "docker" "start" "-a" "eaf5061003cd8c306a6aaa0c2fca7ddcaf5d2350808d07bea9b6f9d71d65d7dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaf5061003cd8c306a6aaa0c2fca7ddcaf5d2350808d07bea9b6f9d71d65d7dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf5061003cd8c306a6aaa0c2fca7ddcaf5d2350808d07bea9b6f9d71d65d7dc", kill_on_drop: false }`
[INFO] [stdout] eaf5061003cd8c306a6aaa0c2fca7ddcaf5d2350808d07bea9b6f9d71d65d7dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36b1a9ce196d25fc1312006b2a844b7e88645095ef6e5b4dbf9085175fe7b5fb
[INFO] running `Command { std: "docker" "start" "-a" "36b1a9ce196d25fc1312006b2a844b7e88645095ef6e5b4dbf9085175fe7b5fb", kill_on_drop: false }`
[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 libc v0.2.144
[INFO] [stderr]    Compiling once_cell v1.17.2
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[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 object v0.30.3
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling idna v0.3.0
[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" "36b1a9ce196d25fc1312006b2a844b7e88645095ef6e5b4dbf9085175fe7b5fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b1a9ce196d25fc1312006b2a844b7e88645095ef6e5b4dbf9085175fe7b5fb", kill_on_drop: false }`
[INFO] [stdout] 36b1a9ce196d25fc1312006b2a844b7e88645095ef6e5b4dbf9085175fe7b5fb