[INFO] fetching crate mudbase 0.1.4...
[INFO] testing mudbase-0.1.4 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate mudbase 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mudbase 0.1.4
[INFO] finished tweaking crates.io crate mudbase 0.1.4
[INFO] tweaked toml for crates.io crate mudbase 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mudbase 0.1.4 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mudbase 0.1.4 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 701a016ea1c63866d0de57fac258b1a8d0c78f21d36b633f9b7b6aeda2a95a99
[INFO] running `Command { std: "docker" "start" "-a" "701a016ea1c63866d0de57fac258b1a8d0c78f21d36b633f9b7b6aeda2a95a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "701a016ea1c63866d0de57fac258b1a8d0c78f21d36b633f9b7b6aeda2a95a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701a016ea1c63866d0de57fac258b1a8d0c78f21d36b633f9b7b6aeda2a95a99", kill_on_drop: false }`
[INFO] [stdout] 701a016ea1c63866d0de57fac258b1a8d0c78f21d36b633f9b7b6aeda2a95a99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d40cf5e36cfc679084944cb8bc0da3e152cd9a79d1923dd0bb1d7170311676f
[INFO] running `Command { std: "docker" "start" "-a" "2d40cf5e36cfc679084944cb8bc0da3e152cd9a79d1923dd0bb1d7170311676f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mudbase_server v0.1.0
[INFO] [stderr]    Compiling mudbase v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "2d40cf5e36cfc679084944cb8bc0da3e152cd9a79d1923dd0bb1d7170311676f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d40cf5e36cfc679084944cb8bc0da3e152cd9a79d1923dd0bb1d7170311676f", kill_on_drop: false }`
[INFO] [stdout] 2d40cf5e36cfc679084944cb8bc0da3e152cd9a79d1923dd0bb1d7170311676f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 917e186814fbe48ba2e7ff57efd5b8244984db7bf317cdc6ef38e3c1e25bfc6d
[INFO] running `Command { std: "docker" "start" "-a" "917e186814fbe48ba2e7ff57efd5b8244984db7bf317cdc6ef38e3c1e25bfc6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling mudbase v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0050]: method `handle_message` has 3 parameters but the declaration in trait `handle_message` has 2
[INFO] [stdout]   --> examples/simple_mud.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn handle_message(session: &mut SessionType, message: &str, address: &str) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 2 parameters, found 3
[INFO] [stdout]    |
[INFO] [stdout]    = note: `handle_message` from trait: `fn(&str, &str)`
[INFO] [stdout] help: remove the extra parameter to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 16 -     fn handle_message(session: &mut SessionType, message: &str, address: &str) {
[INFO] [stdout] 16 +     fn handle_message(session: &mut SessionType, message: &str) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `send` found for struct `Server` in the current scope
[INFO] [stdout]   --> examples/simple_mud.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout]  3 | struct Server {
[INFO] [stdout]    | ------------- function or associated item `send` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |       Self::send(session, message);
[INFO] [stdout]    |             ^^^^ function or associated item not found in `Server`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `Server`, consider using `Server::new` which returns `Server`
[INFO] [stdout]   --> examples/simple_mud.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  8 |     fn new() -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0050, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0050`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mudbase` (example "simple_mud") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "917e186814fbe48ba2e7ff57efd5b8244984db7bf317cdc6ef38e3c1e25bfc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "917e186814fbe48ba2e7ff57efd5b8244984db7bf317cdc6ef38e3c1e25bfc6d", kill_on_drop: false }`
[INFO] [stdout] 917e186814fbe48ba2e7ff57efd5b8244984db7bf317cdc6ef38e3c1e25bfc6d