[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/537b899a3c9a6a874e9041fe0c912bf3b74d000c against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreivasiliu%2Fdemimud" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andreivasiliu/demimud on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libtelnet-rs v1.1.2
[INFO] [stderr]   Downloaded bincode v1.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 300ac30099c3e68cea3bf0c7f13ef8d4f453454bc3e7f3e9acf441cb04c0365b
[INFO] running `Command { std: "docker" "start" "-a" "300ac30099c3e68cea3bf0c7f13ef8d4f453454bc3e7f3e9acf441cb04c0365b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "300ac30099c3e68cea3bf0c7f13ef8d4f453454bc3e7f3e9acf441cb04c0365b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300ac30099c3e68cea3bf0c7f13ef8d4f453454bc3e7f3e9acf441cb04c0365b", kill_on_drop: false }`
[INFO] [stdout] 300ac30099c3e68cea3bf0c7f13ef8d4f453454bc3e7f3e9acf441cb04c0365b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 009e6e570862cfd96b9f76bd2eb70d82771f85993f019c215eaea3d1234104c2
[INFO] running `Command { std: "docker" "start" "-a" "009e6e570862cfd96b9f76bd2eb70d82771f85993f019c215eaea3d1234104c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking libtelnet-rs v1.1.2
[INFO] [stderr]     Checking wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking netcore v0.1.0 (/opt/rustwide/workdir/netcore)
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking regex v1.4.5
[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 `key` is never read
[INFO] [stdout]   --> mudlib/src/components.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub(crate) struct Object {
[INFO] [stdout]    |                   ------ field in this struct
[INFO] [stdout] 56 |     pub cost: i32,
[INFO] [stdout] 57 |     pub key: Option<Vnum>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Object` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Prefer` is never constructed
[INFO] [stdout]    --> mudlib/src/find_entities.rs:163:19
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub(crate) struct Prefer<'q, I: 'q, P> {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `prefer` is never used
[INFO] [stdout]    --> mudlib/src/find_entities.rs:339:8
[INFO] [stdout]     |
[INFO] [stdout] 336 | pub(crate) trait EntityIterator<'e, C: 'e>: Sized {
[INFO] [stdout]     |                  -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 339 |     fn prefer<'p, P: Fn(&EntityInfo<'p>) -> bool>(self, prefer: P) -> Prefer<'p, Self, P> {
[INFO] [stdout]     |        ^^^^^^
[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: box cannot be represented as a single pointer
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clicore v0.1.0 (/opt/rustwide/workdir/clicore)
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> mudlib/src/components.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub(crate) struct Object {
[INFO] [stdout]    |                   ------ field in this struct
[INFO] [stdout] 56 |     pub cost: i32,
[INFO] [stdout] 57 |     pub key: Option<Vnum>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Object` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Prefer` is never constructed
[INFO] [stdout]    --> mudlib/src/find_entities.rs:163:19
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub(crate) struct Prefer<'q, I: 'q, P> {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `prefer` is never used
[INFO] [stdout]    --> mudlib/src/find_entities.rs:339:8
[INFO] [stdout]     |
[INFO] [stdout] 336 | pub(crate) trait EntityIterator<'e, C: 'e>: Sized {
[INFO] [stdout]     |                  -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 339 |     fn prefer<'p, P: Fn(&EntityInfo<'p>) -> bool>(self, prefer: P) -> Prefer<'p, Self, P> {
[INFO] [stdout]     |        ^^^^^^
[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: box cannot be represented as a single pointer
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.01s
[INFO] running `Command { std: "docker" "inspect" "009e6e570862cfd96b9f76bd2eb70d82771f85993f019c215eaea3d1234104c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "009e6e570862cfd96b9f76bd2eb70d82771f85993f019c215eaea3d1234104c2", kill_on_drop: false }`
[INFO] [stdout] 009e6e570862cfd96b9f76bd2eb70d82771f85993f019c215eaea3d1234104c2