[INFO] cloning repository https://github.com/luizribeiro/docknix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luizribeiro/docknix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizribeiro%2Fdocknix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizribeiro%2Fdocknix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a9a3df7b43f88350b5a78c72560e56f600356e2
[INFO] checking luizribeiro/docknix against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizribeiro%2Fdocknix" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luizribeiro/docknix on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luizribeiro/docknix
[INFO] finished tweaking git repo https://github.com/luizribeiro/docknix
[INFO] tweaked toml for git repo https://github.com/luizribeiro/docknix written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/luizribeiro/docknix 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/luizribeiro/dkregistry-rs.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crypto-common v0.1.4
[INFO] [stderr]   Downloaded strum_macros v0.23.1
[INFO] [stderr]   Downloaded io-lifetimes v1.0.4
[INFO] [stderr]   Downloaded libflate v1.2.0
[INFO] [stderr]   Downloaded owo-colors v3.4.0
[INFO] [stderr]   Downloaded libflate_lz77 v1.1.0
[INFO] [stderr]   Downloaded is-terminal v0.4.2
[INFO] [stderr]   Downloaded cbitset v0.2.0
[INFO] [stderr]   Downloaded smol_str v0.1.23
[INFO] [stderr]   Downloaded erased-serde v0.3.24
[INFO] [stderr]   Downloaded miette-derive v5.4.1
[INFO] [stderr]   Downloaded countme v2.0.4
[INFO] [stderr]   Downloaded rnix v0.10.2
[INFO] [stderr]   Downloaded rustix v0.36.6
[INFO] [stderr]   Downloaded miette v5.4.1
[INFO] [stderr]   Downloaded similar v2.1.0
[INFO] [stderr]   Downloaded text-size v1.1.0
[INFO] [stderr]   Downloaded serde_ignored v0.1.3
[INFO] [stderr]   Downloaded strum v0.23.0
[INFO] [stderr]   Downloaded rowan v0.12.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d86452a984ec52f656c6e11ebecae031942049c29425fd493466e0fc5faeadb
[INFO] running `Command { std: "docker" "start" "-a" "9d86452a984ec52f656c6e11ebecae031942049c29425fd493466e0fc5faeadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d86452a984ec52f656c6e11ebecae031942049c29425fd493466e0fc5faeadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d86452a984ec52f656c6e11ebecae031942049c29425fd493466e0fc5faeadb", kill_on_drop: false }`
[INFO] [stdout] 9d86452a984ec52f656c6e11ebecae031942049c29425fd493466e0fc5faeadb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7faad6924494482b1c6cb98b5b61d8caac0219dea9cb91aad72ffc3938971b14
[INFO] running `Command { std: "docker" "start" "-a" "7faad6924494482b1c6cb98b5b61d8caac0219dea9cb91aad72ffc3938971b14", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling tokio v1.22.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling serde_json v1.0.88
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]    Compiling rustversion v1.0.7
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling rustix v0.36.6
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking countme v2.0.4
[INFO] [stderr]     Checking libflate_lz77 v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.58
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling erased-serde v0.3.24
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking is_ci v1.1.1
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking text-size v1.1.0
[INFO] [stderr]     Checking libflate v1.2.0
[INFO] [stderr]     Checking cbitset v0.2.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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]     Checking rowan v0.12.6
[INFO] [stderr]     Checking strum v0.23.0
[INFO] [stderr]     Checking owo-colors v3.4.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking similar v2.1.0
[INFO] [stdout] error: aborting due to 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" "7faad6924494482b1c6cb98b5b61d8caac0219dea9cb91aad72ffc3938971b14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7faad6924494482b1c6cb98b5b61d8caac0219dea9cb91aad72ffc3938971b14", kill_on_drop: false }`
[INFO] [stdout] 7faad6924494482b1c6cb98b5b61d8caac0219dea9cb91aad72ffc3938971b14