[INFO] cloning repository https://github.com/nightcycle/png-to-terrain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nightcycle/png-to-terrain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnightcycle%2Fpng-to-terrain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnightcycle%2Fpng-to-terrain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7203d535db80bf3734145d35c5daf01ffe6aca2
[INFO] testing nightcycle/png-to-terrain against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnightcycle%2Fpng-to-terrain" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nightcycle/png-to-terrain
[INFO] finished tweaking git repo https://github.com/nightcycle/png-to-terrain
[INFO] tweaked toml for git repo https://github.com/nightcycle/png-to-terrain written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nightcycle/png-to-terrain on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nightcycle/png-to-terrain 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded xml-rs v0.8.4
[INFO] [stderr]   Downloaded rmp-serde v0.14.4
[INFO] [stderr]   Downloaded paste v1.0.11
[INFO] [stderr]   Downloaded lz4 v1.24.0
[INFO] [stderr]   Downloaded profiling-procmacros v1.0.7
[INFO] [stderr]   Downloaded profiling v1.0.7
[INFO] [stderr]   Downloaded rmp v0.8.11
[INFO] [stderr]   Downloaded quick-xml v0.27.1
[INFO] [stderr]   Downloaded lz4-sys v1.9.4
[INFO] [stderr]   Downloaded rbx_reflection v4.2.0
[INFO] [stderr]   Downloaded rbx_dom v0.1.0
[INFO] [stderr]   Downloaded rbx_dom_weak v2.4.0
[INFO] [stderr]   Downloaded rbx_xml v0.12.4
[INFO] [stderr]   Downloaded rbx_types v1.4.2
[INFO] [stderr]   Downloaded rbx_reflection_database v0.2.5+roblox-530
[INFO] [stderr]   Downloaded rbx_binary v0.6.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f287895c24a9ae18a8a47d7828ca267bf8e76cece264aa7100ecdd26137d15eb
[INFO] running `Command { std: "docker" "start" "-a" "f287895c24a9ae18a8a47d7828ca267bf8e76cece264aa7100ecdd26137d15eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f287895c24a9ae18a8a47d7828ca267bf8e76cece264aa7100ecdd26137d15eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f287895c24a9ae18a8a47d7828ca267bf8e76cece264aa7100ecdd26137d15eb", kill_on_drop: false }`
[INFO] [stdout] f287895c24a9ae18a8a47d7828ca267bf8e76cece264aa7100ecdd26137d15eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a038820fd6a23aea82f4dd634c0e0390f781167276ab02bfc27d8f5f16d49f9
[INFO] running `Command { std: "docker" "start" "-a" "6a038820fd6a23aea82f4dd634c0e0390f781167276ab02bfc27d8f5f16d49f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling constant_time_eq v0.2.4
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling rbx_dom v0.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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 num-traits v0.2.15
[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" "6a038820fd6a23aea82f4dd634c0e0390f781167276ab02bfc27d8f5f16d49f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a038820fd6a23aea82f4dd634c0e0390f781167276ab02bfc27d8f5f16d49f9", kill_on_drop: false }`
[INFO] [stdout] 6a038820fd6a23aea82f4dd634c0e0390f781167276ab02bfc27d8f5f16d49f9
