[INFO] cloning repository https://github.com/amendenchantment/fuzzering
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amendenchantment/fuzzering" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famendenchantment%2Ffuzzering", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famendenchantment%2Ffuzzering'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 227824d2fa727c49408aa5d7d3abbc95daf31be5
[INFO] checking amendenchantment/fuzzering against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famendenchantment%2Ffuzzering" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  93% (294/316)
Updating files:  94% (298/316)
Updating files:  95% (301/316)
Updating files:  96% (304/316)
Updating files:  97% (307/316)
Updating files:  98% (310/316)
Updating files:  99% (313/316)
Updating files: 100% (316/316)
Updating files: 100% (316/316), done.
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/amendenchantment/fuzzering
[INFO] finished tweaking git repo https://github.com/amendenchantment/fuzzering
[INFO] tweaked toml for git repo https://github.com/amendenchantment/fuzzering written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/amendenchantment/fuzzering 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/amendenchantment/fuzzering 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]     Blocking waiting for file lock on package cache
[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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31faf6a59a8b05df9f09296e32c511f1eb4448dc994590483d776db645ed7474
[INFO] running `Command { std: "docker" "start" "-a" "31faf6a59a8b05df9f09296e32c511f1eb4448dc994590483d776db645ed7474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31faf6a59a8b05df9f09296e32c511f1eb4448dc994590483d776db645ed7474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31faf6a59a8b05df9f09296e32c511f1eb4448dc994590483d776db645ed7474", kill_on_drop: false }`
[INFO] [stdout] 31faf6a59a8b05df9f09296e32c511f1eb4448dc994590483d776db645ed7474
[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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a8341753843405bc7d615e88cae978fa50aad71305ed7124d15b0c1bb3c2938
[INFO] running `Command { std: "docker" "start" "-a" "5a8341753843405bc7d615e88cae978fa50aad71305ed7124d15b0c1bb3c2938", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]     Checking unicode-ident v1.0.14
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.95
[INFO] [stderr]    Compiling internal-macros v0.1.0 (/opt/rustwide/workdir/internal-macros)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> internal-macros/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(proc_macro_quote)]
[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 `internal-macros` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5a8341753843405bc7d615e88cae978fa50aad71305ed7124d15b0c1bb3c2938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a8341753843405bc7d615e88cae978fa50aad71305ed7124d15b0c1bb3c2938", kill_on_drop: false }`
[INFO] [stdout] 5a8341753843405bc7d615e88cae978fa50aad71305ed7124d15b0c1bb3c2938