[INFO] updating cached repository https://github.com/FauxFaux/upiped-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 97d2973b072f954955353f292e730858eeb51d71
[INFO] checking FauxFaux/upiped-rs against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Fupiped-rs" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FauxFaux/upiped-rs on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/FauxFaux/upiped-rs
[INFO] finished tweaking git repo https://github.com/FauxFaux/upiped-rs
[INFO] tweaked toml for git repo https://github.com/FauxFaux/upiped-rs written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/FauxFaux/upiped-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d4365984e2bcbe614683f81f313c012c8e335bd8cda41c4cb7270a44c4996556
[INFO] running `"docker" "start" "-a" "d4365984e2bcbe614683f81f313c012c8e335bd8cda41c4cb7270a44c4996556"`
[INFO] [stderr]    Compiling subtle v0.6.3
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]     Checking chacha20-poly1305-aead v0.1.2
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]    Compiling digest v0.7.5
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking regex v1.0.2
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]    Compiling curve25519-dalek v0.17.0
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking pretty_env_logger v0.2.4
[INFO] [stderr]     Checking x25519-dalek v0.2.0 (https://github.com/mcginty/x25519-dalek?rev=715208e0eba9994799adb674629ec45dcaa9348e#715208e0)
[INFO] [stderr]     Checking upiped-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/client/mod.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     Ok(())
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `addr`
[INFO] [stderr]   --> src/client/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     addr: net::SocketAddr,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MTU`
[INFO] [stderr]   --> src/proto/mod.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const MTU: usize = 508;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `KeyId`
[INFO] [stderr]   --> src/proto/mod.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | type KeyId = u32;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PLAINTEXT_LEN`
[INFO] [stderr]   --> src/proto/mod.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | const PLAINTEXT_LEN: usize = 476;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MAX_USER_DATA`
[INFO] [stderr]   --> src/proto/mod.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | const MAX_USER_DATA: usize = PLAINTEXT_LEN - 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Key`
[INFO] [stderr]   --> src/proto/mod.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | type Key = [u8; 32];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Keys`
[INFO] [stderr]   --> src/proto/mod.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | type Keys = HashMap<KeyId, Key>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pack`
[INFO] [stderr]   --> src/proto/mod.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn pack(key_id: KeyId, keys: &Keys, data: &[u8]) -> Result<[u8; MTU], Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Padding`
[INFO] [stderr]   --> src/proto/mod.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     Padding = 64,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_opcode`
[INFO] [stderr]   --> src/proto/mod.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn write_opcode(into: &mut [u8], code: OpCode, frame_len: usize) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/client/mod.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     Ok(())
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `addr`
[INFO] [stderr]   --> src/client/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     addr: net::SocketAddr,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.34s
[INFO] running `"docker" "inspect" "d4365984e2bcbe614683f81f313c012c8e335bd8cda41c4cb7270a44c4996556"`
[INFO] running `"docker" "rm" "-f" "d4365984e2bcbe614683f81f313c012c8e335bd8cda41c4cb7270a44c4996556"`
[INFO] [stdout] d4365984e2bcbe614683f81f313c012c8e335bd8cda41c4cb7270a44c4996556