[INFO] fetching crate skinfile-gen 0.2.0...
[INFO] checking skinfile-gen-0.2.0 against try#1463461488056994d1b84e8b752e7c11c7fae7aa for pr-154205
[INFO] extracting crate skinfile-gen 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate skinfile-gen 0.2.0
[INFO] finished tweaking crates.io crate skinfile-gen 0.2.0
[INFO] tweaked toml for crates.io crate skinfile-gen 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate skinfile-gen 0.2.0 on toolchain 1463461488056994d1b84e8b752e7c11c7fae7aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate skinfile-gen 0.2.0 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" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc52dbf6156590e0e3652dec8ad335d28eda4a6d34691f3380d0dc18dabf1ab9
[INFO] running `Command { std: "docker" "start" "-a" "bc52dbf6156590e0e3652dec8ad335d28eda4a6d34691f3380d0dc18dabf1ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc52dbf6156590e0e3652dec8ad335d28eda4a6d34691f3380d0dc18dabf1ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc52dbf6156590e0e3652dec8ad335d28eda4a6d34691f3380d0dc18dabf1ab9", kill_on_drop: false }`
[INFO] [stdout] bc52dbf6156590e0e3652dec8ad335d28eda4a6d34691f3380d0dc18dabf1ab9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44ec9c7b00bf17a2606f296febe1ef4629b1bd06e14007dfd61cac0367bc3176
[INFO] running `Command { std: "docker" "start" "-a" "44ec9c7b00bf17a2606f296febe1ef4629b1bd06e14007dfd61cac0367bc3176", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking untrusted v0.7.1
[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" "44ec9c7b00bf17a2606f296febe1ef4629b1bd06e14007dfd61cac0367bc3176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44ec9c7b00bf17a2606f296febe1ef4629b1bd06e14007dfd61cac0367bc3176", kill_on_drop: false }`
[INFO] [stdout] 44ec9c7b00bf17a2606f296febe1ef4629b1bd06e14007dfd61cac0367bc3176