[INFO] cloning repository https://github.com/BlackPhlox/potoo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlackPhlox/potoo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlackPhlox%2Fpotoo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlackPhlox%2Fpotoo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5cc0b865aabb977a3be0b55179974da873d44067
[INFO] checking BlackPhlox/potoo against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlackPhlox%2Fpotoo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BlackPhlox/potoo
[INFO] finished tweaking git repo https://github.com/BlackPhlox/potoo
[INFO] tweaked toml for git repo https://github.com/BlackPhlox/potoo written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BlackPhlox/potoo on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BlackPhlox/potoo 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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22a0f15d210acdd4d254ed11ad5de1406acbdd11e70a7318cc921965470a9e06
[INFO] running `Command { std: "docker" "start" "-a" "22a0f15d210acdd4d254ed11ad5de1406acbdd11e70a7318cc921965470a9e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22a0f15d210acdd4d254ed11ad5de1406acbdd11e70a7318cc921965470a9e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a0f15d210acdd4d254ed11ad5de1406acbdd11e70a7318cc921965470a9e06", kill_on_drop: false }`
[INFO] [stdout] 22a0f15d210acdd4d254ed11ad5de1406acbdd11e70a7318cc921965470a9e06
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffbf950c56ce1caf83f0bf3627f6a153fe6ebeb9fab4a700116e29b0d4ca94cb
[INFO] running `Command { std: "docker" "start" "-a" "ffbf950c56ce1caf83f0bf3627f6a153fe6ebeb9fab4a700116e29b0d4ca94cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling winnow v0.4.6
[INFO] [stderr]    Compiling toml_datetime v0.6.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking parking v2.1.0
[INFO] [stderr]    Compiling erased-serde v0.3.25
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking async-lock v2.7.0
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking async-task v4.4.0
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]     Checking bevy_ptr v0.10.1
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/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 unicode-width v0.1.10
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking raw-window-handle v0.5.2
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-log v0.1.3
[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" "ffbf950c56ce1caf83f0bf3627f6a153fe6ebeb9fab4a700116e29b0d4ca94cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffbf950c56ce1caf83f0bf3627f6a153fe6ebeb9fab4a700116e29b0d4ca94cb", kill_on_drop: false }`
[INFO] [stdout] ffbf950c56ce1caf83f0bf3627f6a153fe6ebeb9fab4a700116e29b0d4ca94cb
