[INFO] fetching crate teensy4-panic 0.2.0...
[INFO] testing teensy4-panic-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate teensy4-panic 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate teensy4-panic 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate teensy4-panic 0.2.0
[INFO] finished tweaking crates.io crate teensy4-panic 0.2.0
[INFO] tweaked toml for crates.io crate teensy4-panic 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] cd8f6c53ef90b43f6c759d5d9000b4ef21129e5d1b9a9bccc6b62dd6865f0ec0
[INFO] running `Command { std: "docker" "start" "-a" "cd8f6c53ef90b43f6c759d5d9000b4ef21129e5d1b9a9bccc6b62dd6865f0ec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd8f6c53ef90b43f6c759d5d9000b4ef21129e5d1b9a9bccc6b62dd6865f0ec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8f6c53ef90b43f6c759d5d9000b4ef21129e5d1b9a9bccc6b62dd6865f0ec0", kill_on_drop: false }`
[INFO] [stdout] cd8f6c53ef90b43f6c759d5d9000b4ef21129e5d1b9a9bccc6b62dd6865f0ec0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7b3cb71b34e08d7802e9beebd38198fe9adb72effd9eecaf01e20b25dc7dd3e
[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" "a7b3cb71b34e08d7802e9beebd38198fe9adb72effd9eecaf01e20b25dc7dd3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling teensy4-panic v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "a7b3cb71b34e08d7802e9beebd38198fe9adb72effd9eecaf01e20b25dc7dd3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7b3cb71b34e08d7802e9beebd38198fe9adb72effd9eecaf01e20b25dc7dd3e", kill_on_drop: false }`
[INFO] [stdout] a7b3cb71b34e08d7802e9beebd38198fe9adb72effd9eecaf01e20b25dc7dd3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", 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] bc4064b4caa89d0b8b093453115f80b720d524fcfe253fe45891c0ec0c1f673a
[INFO] running `Command { std: "docker" "start" "-a" "bc4064b4caa89d0b8b093453115f80b720d524fcfe253fe45891c0ec0c1f673a", kill_on_drop: false }`
[INFO] [stderr]    Compiling teensy4-panic v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]    --> src/lib.rs:126:1
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn panic(_: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]     = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-29e5e596e889a0aa.so, /opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-29e5e596e889a0aa.rlib
[INFO] [stdout]     = note: second definition in the local crate (`teensy4_panic`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `teensy4-panic` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bc4064b4caa89d0b8b093453115f80b720d524fcfe253fe45891c0ec0c1f673a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4064b4caa89d0b8b093453115f80b720d524fcfe253fe45891c0ec0c1f673a", kill_on_drop: false }`
[INFO] [stdout] bc4064b4caa89d0b8b093453115f80b720d524fcfe253fe45891c0ec0c1f673a