[INFO] fetching crate sentry-panic 0.20.1...
[INFO] checking sentry-panic-0.20.1 against beta for pr-78714
[INFO] extracting crate sentry-panic 0.20.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate sentry-panic 0.20.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sentry-panic 0.20.1
[INFO] finished tweaking crates.io crate sentry-panic 0.20.1
[INFO] tweaked toml for crates.io crate sentry-panic 0.20.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f585842fd9a0d048836f87d5927b246fc0c21ff06e6effc69fa264c8740aceb
[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" "9f585842fd9a0d048836f87d5927b246fc0c21ff06e6effc69fa264c8740aceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f585842fd9a0d048836f87d5927b246fc0c21ff06e6effc69fa264c8740aceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f585842fd9a0d048836f87d5927b246fc0c21ff06e6effc69fa264c8740aceb", kill_on_drop: false }`
[INFO] [stdout] 9f585842fd9a0d048836f87d5927b246fc0c21ff06e6effc69fa264c8740aceb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 556a14e5bd6bb66c9c71af02b1cafd3748a6b8a7b2f7809dcca7d8ba0b5b847e
[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" "556a14e5bd6bb66c9c71af02b1cafd3748a6b8a7b2f7809dcca7d8ba0b5b847e", kill_on_drop: false }`
[INFO] [stderr]     Checking sentry-core v0.20.1
[INFO] [stdout] error[E0432]: unresolved import `crate::Client`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sentry-core-0.20.1/src/session.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::{Client, Envelope};
[INFO] [stdout]    |             ^^^^^^ no `Client` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::scope::StackLayer`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sentry-core-0.20.1/src/session.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::scope::StackLayer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ no `StackLayer` in `scope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sentry-core`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "556a14e5bd6bb66c9c71af02b1cafd3748a6b8a7b2f7809dcca7d8ba0b5b847e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556a14e5bd6bb66c9c71af02b1cafd3748a6b8a7b2f7809dcca7d8ba0b5b847e", kill_on_drop: false }`
[INFO] [stdout] 556a14e5bd6bb66c9c71af02b1cafd3748a6b8a7b2f7809dcca7d8ba0b5b847e