[INFO] fetching crate nat-poc 0.2.2...
[INFO] testing nat-poc-0.2.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate nat-poc 0.2.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nat-poc 0.2.2 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 nat-poc 0.2.2
[INFO] finished tweaking crates.io crate nat-poc 0.2.2
[INFO] tweaked toml for crates.io crate nat-poc 0.2.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate nat-poc 0.2.2 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] a7fc0273b5cf433fa0c3daf6dd6c9819c4a554ef89538e1adfa469c6459bbcb8
[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" "a7fc0273b5cf433fa0c3daf6dd6c9819c4a554ef89538e1adfa469c6459bbcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7fc0273b5cf433fa0c3daf6dd6c9819c4a554ef89538e1adfa469c6459bbcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7fc0273b5cf433fa0c3daf6dd6c9819c4a554ef89538e1adfa469c6459bbcb8", kill_on_drop: false }`
[INFO] [stdout] a7fc0273b5cf433fa0c3daf6dd6c9819c4a554ef89538e1adfa469c6459bbcb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] b2abfdee78cd4dbc91b92d4cb54408f6633af0b2c80705e7f96efcc65fa398b0
[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" "b2abfdee78cd4dbc91b92d4cb54408f6633af0b2c80705e7f96efcc65fa398b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling pretty-bytes v0.2.2
[INFO] [stderr]    Compiling users v0.11.0
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling structopt v0.3.20
[INFO] [stderr]    Compiling nat-poc v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/utils/perms.rs:6:60
[INFO] [stdout]   |
[INFO] [stdout] 6 |   let user = masking(mode, S_IRUSR as u16, S_IWUSR as u16, S_IXUSR);
[INFO] [stdout]   |                                                            ^^^^^^^ expected `u16`, found `u32`
[INFO] [stdout]   |
[INFO] [stdout] help: you can convert a `u32` to a `u16` and panic if the converted value doesn't fit
[INFO] [stdout]   |
[INFO] [stdout] 6 |   let user = masking(mode, S_IRUSR as u16, S_IWUSR as u16, S_IXUSR.try_into().unwrap());
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/utils/perms.rs:7:61
[INFO] [stdout]   |
[INFO] [stdout] 7 |   let group = masking(mode, S_IRGRP as u16, S_IWGRP as u16, S_IXGRP);
[INFO] [stdout]   |                                                             ^^^^^^^ expected `u16`, found `u32`
[INFO] [stdout]   |
[INFO] [stdout] help: you can convert a `u32` to a `u16` and panic if the converted value doesn't fit
[INFO] [stdout]   |
[INFO] [stdout] 7 |   let group = masking(mode, S_IRGRP as u16, S_IWGRP as u16, S_IXGRP.try_into().unwrap());
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/utils/perms.rs:8:61
[INFO] [stdout]   |
[INFO] [stdout] 8 |   let other = masking(mode, S_IROTH as u16, S_IWOTH as u16, S_IXOTH);
[INFO] [stdout]   |                                                             ^^^^^^^ expected `u16`, found `u32`
[INFO] [stdout]   |
[INFO] [stdout] help: you can convert a `u32` to a `u16` and panic if the converted value doesn't fit
[INFO] [stdout]   |
[INFO] [stdout] 8 |   let other = masking(mode, S_IROTH as u16, S_IWOTH as u16, S_IXOTH.try_into().unwrap());
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nat-poc`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b2abfdee78cd4dbc91b92d4cb54408f6633af0b2c80705e7f96efcc65fa398b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2abfdee78cd4dbc91b92d4cb54408f6633af0b2c80705e7f96efcc65fa398b0", kill_on_drop: false }`
[INFO] [stdout] b2abfdee78cd4dbc91b92d4cb54408f6633af0b2c80705e7f96efcc65fa398b0