[INFO] fetching crate argonaut 0.12.0...
[INFO] testing argonaut-0.12.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate argonaut 0.12.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate argonaut 0.12.0 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 argonaut 0.12.0
[INFO] finished tweaking crates.io crate argonaut 0.12.0
[INFO] tweaked toml for crates.io crate argonaut 0.12.0 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 527ec9bcdde03e17be2a07ab7fa56cf70c6b5dc814f5c03e5317f19c5139d924
[INFO] running `Command { std: "docker" "start" "-a" "527ec9bcdde03e17be2a07ab7fa56cf70c6b5dc814f5c03e5317f19c5139d924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "527ec9bcdde03e17be2a07ab7fa56cf70c6b5dc814f5c03e5317f19c5139d924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "527ec9bcdde03e17be2a07ab7fa56cf70c6b5dc814f5c03e5317f19c5139d924", kill_on_drop: false }`
[INFO] [stdout] 527ec9bcdde03e17be2a07ab7fa56cf70c6b5dc814f5c03e5317f19c5139d924
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 72d7cd3a2ef91149f510dd97161ead34e22a71f6e37f43e981caa6d2a29ad32f
[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" "72d7cd3a2ef91149f510dd97161ead34e22a71f6e37f43e981caa6d2a29ad32f", kill_on_drop: false }`
[INFO] [stderr]    Compiling argonaut v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `std_unicode`
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate std_unicode;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `argonaut` 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 E0463`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72d7cd3a2ef91149f510dd97161ead34e22a71f6e37f43e981caa6d2a29ad32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d7cd3a2ef91149f510dd97161ead34e22a71f6e37f43e981caa6d2a29ad32f", kill_on_drop: false }`
[INFO] [stdout] 72d7cd3a2ef91149f510dd97161ead34e22a71f6e37f43e981caa6d2a29ad32f