[INFO] fetching crate fswatch-sys 0.1.10...
[INFO] testing fswatch-sys-0.1.10 against 1.49.0 for beta-1.50-1
[INFO] extracting crate fswatch-sys 0.1.10 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fswatch-sys 0.1.10 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 crates.io crate fswatch-sys 0.1.10
[INFO] finished tweaking crates.io crate fswatch-sys 0.1.10
[INFO] tweaked toml for crates.io crate fswatch-sys 0.1.10 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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" "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] dfc40c20d6c70c9699f3d3a8906d54aff0bf7b688d51a0bac4cf01c4c053cf89
[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" "dfc40c20d6c70c9699f3d3a8906d54aff0bf7b688d51a0bac4cf01c4c053cf89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfc40c20d6c70c9699f3d3a8906d54aff0bf7b688d51a0bac4cf01c4c053cf89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfc40c20d6c70c9699f3d3a8906d54aff0bf7b688d51a0bac4cf01c4c053cf89", kill_on_drop: false }`
[INFO] [stdout] dfc40c20d6c70c9699f3d3a8906d54aff0bf7b688d51a0bac4cf01c4c053cf89
[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=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] 5e5e0e315f04c1e256e6a79b11474f228622da2991747f044dae7fdd44ce1d83
[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" "5e5e0e315f04c1e256e6a79b11474f228622da2991747f044dae7fdd44ce1d83", kill_on_drop: false }`
[INFO] [stderr]    Compiling fswatch-sys v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub const FSW_ERR_SESSION_UNKNOWN: FSW_STATUS = (1 << 1);
[INFO] [stdout]    |                                                 ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:72:56
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub const FSW_ERR_MONITOR_ALREADY_EXISTS: FSW_STATUS = (1 << 2);
[INFO] [stdout]    |                                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:73:40
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub const FSW_ERR_MEMORY: FSW_STATUS = (1 << 3);
[INFO] [stdout]    |                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:74:54
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub const FSW_ERR_UNKNOWN_MONITOR_TYPE: FSW_STATUS = (1 << 4);
[INFO] [stdout]    |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:75:50
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub const FSW_ERR_CALLBACK_NOT_SET: FSW_STATUS = (1 << 5);
[INFO] [stdout]    |                                                  ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:76:47
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub const FSW_ERR_PATHS_NOT_SET: FSW_STATUS = (1 << 6);
[INFO] [stdout]    |                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:77:49
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub const FSW_ERR_MISSING_CONTEXT: FSW_STATUS = (1 << 7);
[INFO] [stdout]    |                                                 ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:78:46
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub const FSW_ERR_INVALID_PATH: FSW_STATUS = (1 << 8);
[INFO] [stdout]    |                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:79:50
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub const FSW_ERR_INVALID_CALLBACK: FSW_STATUS = (1 << 9);
[INFO] [stdout]    |                                                  ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:80:49
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub const FSW_ERR_INVALID_LATENCY: FSW_STATUS = (1 << 10);
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:81:47
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub const FSW_ERR_INVALID_REGEX: FSW_STATUS = (1 << 11);
[INFO] [stdout]    |                                               ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:82:57
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub const FSW_ERR_MONITOR_ALREADY_RUNNING: FSW_STATUS = (1 << 12);
[INFO] [stdout]    |                                                         ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:83:47
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub const FSW_ERR_UNKNOWN_VALUE: FSW_STATUS = (1 << 13);
[INFO] [stdout]    |                                               ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:84:50
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub const FSW_ERR_INVALID_PROPERTY: FSW_STATUS = (1 << 14);
[INFO] [stdout]    |                                                  ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 14 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 `fswatch-sys`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5e5e0e315f04c1e256e6a79b11474f228622da2991747f044dae7fdd44ce1d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5e0e315f04c1e256e6a79b11474f228622da2991747f044dae7fdd44ce1d83", kill_on_drop: false }`
[INFO] [stdout] 5e5e0e315f04c1e256e6a79b11474f228622da2991747f044dae7fdd44ce1d83