[INFO] updating cached repository https://github.com/ccutch/chat-app
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2c9289773f94ea9d86ec05706e2be838e531110e
[INFO] checking ccutch/chat-app against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccutch%2Fchat-app" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ccutch/chat-app on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ccutch/chat-app
[INFO] finished tweaking git repo https://github.com/ccutch/chat-app
[INFO] tweaked toml for git repo https://github.com/ccutch/chat-app written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ccutch/chat-app already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 03a2eeaa5c38b50ad3bb44f32b5f274b2f70b73d7a99c0e3e63cdfae30032f53
[INFO] running `"docker" "start" "-a" "03a2eeaa5c38b50ad3bb44f32b5f274b2f70b73d7a99c0e3e63cdfae30032f53"`
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]     Checking rpassword v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:91:16
[INFO] [stderr]    |
[INFO] [stderr] 91 |     encrypter: Encrypter,// sealing key
[INFO] [stderr]    |                ^^^^^^^^^ help: use `dyn`: `dyn Encrypter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:126:29
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chat`
[INFO] [stderr]   --> src/main.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | struct Chat<D: Decrypter, E: Encrypter, T: Transport> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]   --> src/main.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 | struct User {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Recipient`
[INFO] [stderr]   --> src/main.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | struct Recipient {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RemoteKey`
[INFO] [stderr]    --> src/main.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 | struct RemoteKey {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:91:16
[INFO] [stderr]    |
[INFO] [stderr] 91 |     encrypter: Encrypter,// sealing key
[INFO] [stderr]    |                ^^^^^^^^^ help: use `dyn`: `dyn Encrypter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:126:29
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chat`
[INFO] [stderr]   --> src/main.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | struct Chat<D: Decrypter, E: Encrypter, T: Transport> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]   --> src/main.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 | struct User {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Recipient`
[INFO] [stderr]   --> src/main.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | struct Recipient {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RemoteKey`
[INFO] [stderr]    --> src/main.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 | struct RemoteKey {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.82s
[INFO] running `"docker" "inspect" "03a2eeaa5c38b50ad3bb44f32b5f274b2f70b73d7a99c0e3e63cdfae30032f53"`
[INFO] running `"docker" "rm" "-f" "03a2eeaa5c38b50ad3bb44f32b5f274b2f70b73d7a99c0e3e63cdfae30032f53"`
[INFO] [stdout] 03a2eeaa5c38b50ad3bb44f32b5f274b2f70b73d7a99c0e3e63cdfae30032f53