[INFO] cloning repository https://github.com/tmtaybah/simple__rust_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tmtaybah/simple__rust_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmtaybah%2Fsimple__rust_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmtaybah%2Fsimple__rust_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd56a160eb500420959072994b99a0a3f54805ef
[INFO] testing tmtaybah/simple__rust_server against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmtaybah%2Fsimple__rust_server" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tmtaybah/simple__rust_server on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tmtaybah/simple__rust_server
[INFO] finished tweaking git repo https://github.com/tmtaybah/simple__rust_server
[INFO] tweaked toml for git repo https://github.com/tmtaybah/simple__rust_server written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/tmtaybah/simple__rust_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5f9b6f08afd57946ac57d757434a8623955cbf4dbc2387c817131592c709b29
[INFO] running `Command { std: "docker" "start" "-a" "b5f9b6f08afd57946ac57d757434a8623955cbf4dbc2387c817131592c709b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5f9b6f08afd57946ac57d757434a8623955cbf4dbc2387c817131592c709b29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f9b6f08afd57946ac57d757434a8623955cbf4dbc2387c817131592c709b29", kill_on_drop: false }`
[INFO] [stdout] b5f9b6f08afd57946ac57d757434a8623955cbf4dbc2387c817131592c709b29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 463a69391b35af822af2bf2ca16fbd1c8b6e59d31b168adf99a7cc88c06ff8c6
[INFO] running `Command { std: "docker" "start" "-a" "463a69391b35af822af2bf2ca16fbd1c8b6e59d31b168adf99a7cc88c06ff8c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling humansize v1.1.0
[INFO] [stderr]    Compiling askama_escape v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling askama_shared v0.8.0
[INFO] [stderr]    Compiling askama_derive v0.8.0
[INFO] [stderr]    Compiling askama v0.8.0
[INFO] [stderr]    Compiling simple_webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0573]: expected type, found module `self`
[INFO] [stdout]   --> src/lib.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn call_box(self: Box<self>);
[INFO] [stdout]    |                           ^^^^ help: a self type with a similar name exists (notice the capitalization): `Self`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout] 21 + type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `FnBox` cannot be made into an object
[INFO] [stdout]   --> src/lib.rs:8:26
[INFO] [stdout]    |
[INFO] [stdout] 8  |     sender: mpsc::Sender<Job>, // ThreadPool holds sending end of channel
[INFO] [stdout]    |                          ^^^ `FnBox` cannot be made into an object
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn call_box(self: Box<self>);
[INFO] [stdout]    |                       --------- help: consider changing method `call_box`'s `self` parameter to be `&self`: `&Self`
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/lib.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait FnBox {
[INFO] [stdout]    |       ----- this trait cannot be made into an object...
[INFO] [stdout] 12 |     fn call_box(self: Box<self>);
[INFO] [stdout]    |                       ^^^^^^^^^ ...because method `call_box`'s `self` parameter cannot be dispatched on
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0038]: the trait `FnBox` cannot be made into an object
[INFO] [stdout]   --> src/lib.rs:73:58
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn call_box(self: Box<self>);
[INFO] [stdout]    |                       --------- help: consider changing method `call_box`'s `self` parameter to be `&self`: `&Self`
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn new(id: usize, receiver: Arc<Mutex<mpsc::Receiver<Job>>>) -> Worker {
[INFO] [stdout]    |                                                          ^^^ `FnBox` cannot be made into an object
[INFO] [stdout]    |
[INFO] [stdout] note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
[INFO] [stdout]   --> src/lib.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait FnBox {
[INFO] [stdout]    |       ----- this trait cannot be made into an object...
[INFO] [stdout] 12 |     fn call_box(self: Box<self>);
[INFO] [stdout]    |                       ^^^^^^^^^ ...because method `call_box`'s `self` parameter cannot be dispatched on
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0038, E0573.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0038`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple_webserver` due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "463a69391b35af822af2bf2ca16fbd1c8b6e59d31b168adf99a7cc88c06ff8c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463a69391b35af822af2bf2ca16fbd1c8b6e59d31b168adf99a7cc88c06ff8c6", kill_on_drop: false }`
[INFO] [stdout] 463a69391b35af822af2bf2ca16fbd1c8b6e59d31b168adf99a7cc88c06ff8c6