[INFO] fetching crate simple-rate-limit 0.2.0...
[INFO] testing simple-rate-limit-0.2.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate simple-rate-limit 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate simple-rate-limit 0.2.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple-rate-limit 0.2.0
[INFO] finished tweaking crates.io crate simple-rate-limit 0.2.0
[INFO] tweaked toml for crates.io crate simple-rate-limit 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ring-vec v0.1.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 673e4c7e2f50f68f91c67843984c70f21422cfe5bc9cf515cb43d43c2ec4b865
[INFO] running `Command { std: "docker" "start" "-a" "673e4c7e2f50f68f91c67843984c70f21422cfe5bc9cf515cb43d43c2ec4b865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "673e4c7e2f50f68f91c67843984c70f21422cfe5bc9cf515cb43d43c2ec4b865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "673e4c7e2f50f68f91c67843984c70f21422cfe5bc9cf515cb43d43c2ec4b865", kill_on_drop: false }`
[INFO] [stdout] 673e4c7e2f50f68f91c67843984c70f21422cfe5bc9cf515cb43d43c2ec4b865
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f7477303761b06f350eb30c59f8e24cf75e8acfc3516cd9b12ef52f82c0c163
[INFO] running `Command { std: "docker" "start" "-a" "4f7477303761b06f350eb30c59f8e24cf75e8acfc3516cd9b12ef52f82c0c163", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring-vec v0.1.1
[INFO] [stderr]    Compiling simple-rate-limit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "4f7477303761b06f350eb30c59f8e24cf75e8acfc3516cd9b12ef52f82c0c163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7477303761b06f350eb30c59f8e24cf75e8acfc3516cd9b12ef52f82c0c163", kill_on_drop: false }`
[INFO] [stdout] 4f7477303761b06f350eb30c59f8e24cf75e8acfc3516cd9b12ef52f82c0c163
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53218fb3d08d323980392f579215b14583f5f9b8403eaae0308d3c815feb1b12
[INFO] running `Command { std: "docker" "start" "-a" "53218fb3d08d323980392f579215b14583f5f9b8403eaae0308d3c815feb1b12", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-rate-limit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/test.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-rate-limit` (test "test") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "53218fb3d08d323980392f579215b14583f5f9b8403eaae0308d3c815feb1b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53218fb3d08d323980392f579215b14583f5f9b8403eaae0308d3c815feb1b12", kill_on_drop: false }`
[INFO] [stdout] 53218fb3d08d323980392f579215b14583f5f9b8403eaae0308d3c815feb1b12
