[INFO] fetching crate ppk 0.1.1...
[INFO] checking ppk-0.1.1 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate ppk 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ppk 0.1.1
[INFO] finished tweaking crates.io crate ppk 0.1.1
[INFO] tweaked toml for crates.io crate ppk 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ppk 0.1.1 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ppk 0.1.1 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unescape v0.1.0
[INFO] [stderr]   Downloaded derive_more v0.99.17
[INFO] [stderr]   Downloaded num-derive v0.3.3
[INFO] [stderr]   Downloaded hermit-abi v0.2.6
[INFO] [stderr]   Downloaded num_cpus v1.15.0
[INFO] [stderr]   Downloaded thiserror v1.0.40
[INFO] [stderr]   Downloaded darwin-libproc-sys v0.1.2
[INFO] [stderr]   Downloaded psutil v3.2.2
[INFO] [stderr]   Downloaded darwin-libproc v0.1.2
[INFO] [stderr]   Downloaded netstat2 v0.9.1
[INFO] [stderr]   Downloaded platforms v2.0.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.40
[INFO] [stderr]   Downloaded nix v0.23.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67b339bc2fb8c07c3bf1dbef2d07dc5f1f85754f5571127d88240e46b186ebcb
[INFO] running `Command { std: "docker" "start" "-a" "67b339bc2fb8c07c3bf1dbef2d07dc5f1f85754f5571127d88240e46b186ebcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67b339bc2fb8c07c3bf1dbef2d07dc5f1f85754f5571127d88240e46b186ebcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b339bc2fb8c07c3bf1dbef2d07dc5f1f85754f5571127d88240e46b186ebcb", kill_on_drop: false }`
[INFO] [stdout] 67b339bc2fb8c07c3bf1dbef2d07dc5f1f85754f5571127d88240e46b186ebcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dda73f30549f6c046c90acd2e5d463f56f919e3ddf23a18bc8ffdbc25c4ed4e
[INFO] running `Command { std: "docker" "start" "-a" "9dda73f30549f6c046c90acd2e5d463f56f919e3ddf23a18bc8ffdbc25c4ed4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling platforms v2.0.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking unescape v0.1.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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] [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" "9dda73f30549f6c046c90acd2e5d463f56f919e3ddf23a18bc8ffdbc25c4ed4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dda73f30549f6c046c90acd2e5d463f56f919e3ddf23a18bc8ffdbc25c4ed4e", kill_on_drop: false }`
[INFO] [stdout] 9dda73f30549f6c046c90acd2e5d463f56f919e3ddf23a18bc8ffdbc25c4ed4e