[INFO] updating cached repository https://github.com/mgsloan/nightwriter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/mgsloan/nightwriter
[INFO] [stderr]    a07f5be..ddf5f4a  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ddf5f4a553928ae41024fa57081f38efed55115b
[INFO] checking mgsloan/nightwriter against master#4007d4ef26eab44bdabc2b7574d032152264d3ad for pr-66919
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgsloan%2Fnightwriter" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mgsloan/nightwriter on toolchain 4007d4ef26eab44bdabc2b7574d032152264d3ad
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mgsloan/nightwriter
[INFO] finished tweaking git repo https://github.com/mgsloan/nightwriter
[INFO] tweaked toml for git repo https://github.com/mgsloan/nightwriter written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mgsloan/nightwriter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 369cb7a4c6ed46980f7b2a23160a9b53462bd366be425cda6802842b6422140f
[INFO] running `"docker" "start" "-a" "369cb7a4c6ed46980f7b2a23160a9b53462bd366be425cda6802842b6422140f"`
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking x11 v2.18.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking nightwriter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/grab_keyboard.rs:23:48
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn with_keyboard_grabbed(handle_keypress: &Fn(KeyPress) -> Result<HandlerResult, Error>) {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(KeyPress) -> Result<HandlerResult, Error>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/grab_keyboard.rs:120:42
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let mut buffer: [u8; 16] = unsafe { [mem::uninitialized(); 16] };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/grab_keyboard.rs:23:48
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn with_keyboard_grabbed(handle_keypress: &Fn(KeyPress) -> Result<HandlerResult, Error>) {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(KeyPress) -> Result<HandlerResult, Error>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/grab_keyboard.rs:120:42
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let mut buffer: [u8; 16] = unsafe { [mem::uninitialized(); 16] };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.85s
[INFO] running `"docker" "inspect" "369cb7a4c6ed46980f7b2a23160a9b53462bd366be425cda6802842b6422140f"`
[INFO] running `"docker" "rm" "-f" "369cb7a4c6ed46980f7b2a23160a9b53462bd366be425cda6802842b6422140f"`
[INFO] [stdout] 369cb7a4c6ed46980f7b2a23160a9b53462bd366be425cda6802842b6422140f