[INFO] crate panic-rtt-target 0.1.0 is already in cache
[INFO] testing panic-rtt-target-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate panic-rtt-target 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate panic-rtt-target 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate panic-rtt-target 0.1.0
[INFO] finished tweaking crates.io crate panic-rtt-target 0.1.0
[INFO] tweaked toml for crates.io crate panic-rtt-target 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bda4ae8520e48dc699f8c648c560f31ddaf07f42bac43ff811d0a790014b1927
[INFO] running `Command { std: "docker" "start" "-a" "bda4ae8520e48dc699f8c648c560f31ddaf07f42bac43ff811d0a790014b1927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bda4ae8520e48dc699f8c648c560f31ddaf07f42bac43ff811d0a790014b1927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bda4ae8520e48dc699f8c648c560f31ddaf07f42bac43ff811d0a790014b1927", kill_on_drop: false }`
[INFO] [stdout] bda4ae8520e48dc699f8c648c560f31ddaf07f42bac43ff811d0a790014b1927
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5e83c4ca7e0420e4ee28d06013c34b9c7bf1707e357710e00ff1c39bf08f7c8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c5e83c4ca7e0420e4ee28d06013c34b9c7bf1707e357710e00ff1c39bf08f7c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling rtt-target v0.1.1
[INFO] [stderr]    Compiling panic-rtt-target v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: You must specify a platform feature for panic-rtt-target, such as 'cortex-m'.
[INFO] [stdout]   --> src/lib.rs:73:1
[INFO] [stdout]    |
[INFO] [stdout] 73 | compile_error!("You must specify a platform feature for panic-rtt-target, such as 'cortex-m'.");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `panic-rtt-target`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c5e83c4ca7e0420e4ee28d06013c34b9c7bf1707e357710e00ff1c39bf08f7c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e83c4ca7e0420e4ee28d06013c34b9c7bf1707e357710e00ff1c39bf08f7c8", kill_on_drop: false }`
[INFO] [stdout] c5e83c4ca7e0420e4ee28d06013c34b9c7bf1707e357710e00ff1c39bf08f7c8