[INFO] cloning repository https://github.com/danielfvm/dead_simple_webserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielfvm/dead_simple_webserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielfvm%2Fdead_simple_webserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielfvm%2Fdead_simple_webserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4744bc7d80508de9f6dca5bca7dac3bb8394442
[INFO] checking danielfvm/dead_simple_webserver against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielfvm%2Fdead_simple_webserver" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/danielfvm/dead_simple_webserver
[INFO] finished tweaking git repo https://github.com/danielfvm/dead_simple_webserver
[INFO] tweaked toml for git repo https://github.com/danielfvm/dead_simple_webserver written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/danielfvm/dead_simple_webserver on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/danielfvm/dead_simple_webserver 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded render_macros v0.3.1
[INFO] [stderr]   Downloaded html-validation v0.1.2
[INFO] [stderr]   Downloaded html-macro v0.2.5
[INFO] [stderr]   Downloaded bytes v1.6.1
[INFO] [stderr]   Downloaded render v0.3.1
[INFO] [stderr]   Downloaded cc v1.1.7
[INFO] [stderr]   Downloaded serde_json v1.0.121
[INFO] [stderr]   Downloaded object v0.36.2
[INFO] [stderr]   Downloaded webbrowser v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 997c6e0b00977978064a6a9b22cf08398fe0fa0963ffbdacfe12d66a84e8f1ae
[INFO] running `Command { std: "docker" "start" "-a" "997c6e0b00977978064a6a9b22cf08398fe0fa0963ffbdacfe12d66a84e8f1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "997c6e0b00977978064a6a9b22cf08398fe0fa0963ffbdacfe12d66a84e8f1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997c6e0b00977978064a6a9b22cf08398fe0fa0963ffbdacfe12d66a84e8f1ae", kill_on_drop: false }`
[INFO] [stdout] 997c6e0b00977978064a6a9b22cf08398fe0fa0963ffbdacfe12d66a84e8f1ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f472c8a49cd3c4a02da251b93dab565506c4f91f278518f350f1d347ba9e7d19
[INFO] running `Command { std: "docker" "start" "-a" "f472c8a49cd3c4a02da251b93dab565506c4f91f278518f350f1d347ba9e7d19", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling serde_json v1.0.121
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking bytes v1.6.1
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking webbrowser v1.0.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling render_macros v0.3.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/render_macros-0.3.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `render_macros` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f472c8a49cd3c4a02da251b93dab565506c4f91f278518f350f1d347ba9e7d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f472c8a49cd3c4a02da251b93dab565506c4f91f278518f350f1d347ba9e7d19", kill_on_drop: false }`
[INFO] [stdout] f472c8a49cd3c4a02da251b93dab565506c4f91f278518f350f1d347ba9e7d19