[INFO] cloning repository https://github.com/parisholley/rust-ptrbug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parisholley/rust-ptrbug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparisholley%2Frust-ptrbug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparisholley%2Frust-ptrbug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96fb797297a4e26f0d5e6a4bb6860c929a87157c
[INFO] testing parisholley/rust-ptrbug against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparisholley%2Frust-ptrbug" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/parisholley/rust-ptrbug on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/parisholley/rust-ptrbug
[INFO] finished tweaking git repo https://github.com/parisholley/rust-ptrbug
[INFO] tweaked toml for git repo https://github.com/parisholley/rust-ptrbug written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/parisholley/rust-ptrbug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa0312f9d8b6614815aed417965b9f387e756a50a7cc6db4d56c720a6b591ec
[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" "bfa0312f9d8b6614815aed417965b9f387e756a50a7cc6db4d56c720a6b591ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa0312f9d8b6614815aed417965b9f387e756a50a7cc6db4d56c720a6b591ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa0312f9d8b6614815aed417965b9f387e756a50a7cc6db4d56c720a6b591ec", kill_on_drop: false }`
[INFO] [stdout] bfa0312f9d8b6614815aed417965b9f387e756a50a7cc6db4d56c720a6b591ec
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ddaf748338b779d752334d1f3e259e39be01f8c4aa0c58b0b7faf2f5f9c7c7e
[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" "1ddaf748338b779d752334d1f3e259e39be01f8c4aa0c58b0b7faf2f5f9c7c7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(maybe_uninit_ref)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NonNull`
[INFO] [stdout]  --> src/lib.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr::{NonNull};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `poolStruct` should have an upper camel case name
[INFO] [stdout]  --> src/bind.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type poolStruct = poolStructT;
[INFO] [stdout]   |          ^^^^^^^^^^ help: convert the identifier to upper camel case: `PoolStruct`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `engineStruct` should have an upper camel case name
[INFO] [stdout]  --> src/bind.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type engineStruct = engineStructT;
[INFO] [stdout]   |          ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `EngineStruct`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `workerStruct` should have an upper camel case name
[INFO] [stdout]  --> src/bind.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type workerStruct = workerStructT;
[INFO] [stdout]   |          ^^^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `WorkerStruct`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-sys`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1ddaf748338b779d752334d1f3e259e39be01f8c4aa0c58b0b7faf2f5f9c7c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ddaf748338b779d752334d1f3e259e39be01f8c4aa0c58b0b7faf2f5f9c7c7e", kill_on_drop: false }`
[INFO] [stdout] 1ddaf748338b779d752334d1f3e259e39be01f8c4aa0c58b0b7faf2f5f9c7c7e