[INFO] cloning repository https://github.com/andreivasiliu/demimud
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andreivasiliu/demimud" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreivasiliu%2Fdemimud", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreivasiliu%2Fdemimud'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 537b899a3c9a6a874e9041fe0c912bf3b74d000c
[INFO] checking andreivasiliu/demimud against master#2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36 for pr-95819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreivasiliu%2Fdemimud" "/workspace/builds/worker-52/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-52/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andreivasiliu/demimud on toolchain 2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andreivasiliu/demimud
[INFO] finished tweaking git repo https://github.com/andreivasiliu/demimud
[INFO] tweaked toml for git repo https://github.com/andreivasiliu/demimud written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate git repo https://github.com/andreivasiliu/demimud already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.92
[INFO] [stderr]   Downloaded libtelnet-rs v1.1.2
[INFO] [stderr]   Downloaded string-interner v0.12.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 803fb9edeb1ea42ab9cdf4c62d9f9fb4074d6a91a87db36359af2be6a77e5f92
[INFO] running `Command { std: "docker" "start" "-a" "803fb9edeb1ea42ab9cdf4c62d9f9fb4074d6a91a87db36359af2be6a77e5f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "803fb9edeb1ea42ab9cdf4c62d9f9fb4074d6a91a87db36359af2be6a77e5f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803fb9edeb1ea42ab9cdf4c62d9f9fb4074d6a91a87db36359af2be6a77e5f92", kill_on_drop: false }`
[INFO] [stdout] 803fb9edeb1ea42ab9cdf4c62d9f9fb4074d6a91a87db36359af2be6a77e5f92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+2d5a21f63c98f8a1d5f3c3af93bcb0a8af19af36" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 488a38659f69f89512768836c6524f36375fdfbcc56e4c9744755f8e244fd335
[INFO] running `Command { std: "docker" "start" "-a" "488a38659f69f89512768836c6524f36375fdfbcc56e4c9744755f8e244fd335", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking libtelnet-rs v1.1.2
[INFO] [stderr]     Checking wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking netcore v0.1.0 (/opt/rustwide/workdir/netcore)
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking string-interner v0.12.2
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]     Checking mudlib v0.1.0 (/opt/rustwide/workdir/mudlib)
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]   --> mudlib/src/components.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub key: Option<Vnum>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Object` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> mudlib/src/components.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Box<[u8]>`, which is not FFI-safe
[INFO] [stdout]   --> mudlib/src/net.rs:62:69
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn do_things(net_server: &mut NetServer, entry_code: EntryCode) -> ExitCode {
[INFO] [stdout]    |                                                                     ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = note: box cannot be represented as a single pointer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Box<[u8]>`, which is not FFI-safe
[INFO] [stdout]   --> mudlib/src/net.rs:62:83
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn do_things(net_server: &mut NetServer, entry_code: EntryCode) -> ExitCode {
[INFO] [stdout]    |                                                                                   ^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: box cannot be represented as a single pointer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]   --> mudlib/src/components.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub key: Option<Vnum>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Object` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> mudlib/src/components.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clicore v0.1.0 (/opt/rustwide/workdir/clicore)
[INFO] [stdout] warning: `extern` fn uses type `Box<[u8]>`, which is not FFI-safe
[INFO] [stdout]   --> mudlib/src/net.rs:62:69
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn do_things(net_server: &mut NetServer, entry_code: EntryCode) -> ExitCode {
[INFO] [stdout]    |                                                                     ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = note: box cannot be represented as a single pointer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Box<[u8]>`, which is not FFI-safe
[INFO] [stdout]   --> mudlib/src/net.rs:62:83
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn do_things(net_server: &mut NetServer, entry_code: EntryCode) -> ExitCode {
[INFO] [stdout]    |                                                                                   ^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: box cannot be represented as a single pointer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 16s
[INFO] running `Command { std: "docker" "inspect" "488a38659f69f89512768836c6524f36375fdfbcc56e4c9744755f8e244fd335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "488a38659f69f89512768836c6524f36375fdfbcc56e4c9744755f8e244fd335", kill_on_drop: false }`
[INFO] [stdout] 488a38659f69f89512768836c6524f36375fdfbcc56e4c9744755f8e244fd335