[INFO] updating cached repository https://github.com/rooat/RustLearnSource
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 6eccb668d062612f65adb22a1781265f5b94517f
[INFO] checking rooat/RustLearnSource against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frooat%2FRustLearnSource" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rooat/RustLearnSource on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rooat/RustLearnSource
[INFO] finished tweaking git repo https://github.com/rooat/RustLearnSource
[INFO] tweaked toml for git repo https://github.com/rooat/RustLearnSource written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/rooat/RustLearnSource already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 95f58f042834348948d5f540af0ee38f523e3d1b9ec68ed64579f7f19f69d2be
[INFO] running `"docker" "start" "-a" "95f58f042834348948d5f540af0ee38f523e3d1b9ec68ed64579f7f19f69d2be"`
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling syn v1.0.11
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[INFO] [stderr]     Checking ahash v0.2.18
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[INFO] [stderr]     Checking RustLearnSource v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread1.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         sends.send(a_str);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread1.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         sends.send(a_str);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread1.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         sends.send(b_str);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread1.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         sends.send(b_str);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread0.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     oent.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread0.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     twoto.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread0.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     oent.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/thread0.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     twoto.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: crate `asyncTest` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `async_test`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `asyncTest` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `async_test`
[INFO] [stderr] 
[INFO] [stderr] warning: type `c_struct` should have an upper camel case name
[INFO] [stderr]  --> src/bin/actor.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct c_struct {
[INFO] [stderr]   |        ^^^^^^^^ help: convert the identifier to upper camel case: `CStruct`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/bin/actor.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn started(&mut self, ctx: &mut Self::Context){
[INFO] [stderr]    |                           ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/bin/actor.rs:42:40
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn handle(&mut self, msg: CMesage, ctx: &mut Context<Self>) -> Self::Result{
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/actor.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     system.run();
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: type `c_struct` should have an upper camel case name
[INFO] [stderr]  --> src/bin/actor.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct c_struct {
[INFO] [stderr]   |        ^^^^^^^^ help: convert the identifier to upper camel case: `CStruct`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/bin/actor.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn started(&mut self, ctx: &mut Self::Context){
[INFO] [stderr]    |                           ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/bin/actor.rs:42:40
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn handle(&mut self, msg: CMesage, ctx: &mut Context<Self>) -> Self::Result{
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/actor.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     system.run();
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `"docker" "inspect" "95f58f042834348948d5f540af0ee38f523e3d1b9ec68ed64579f7f19f69d2be"`
[INFO] running `"docker" "rm" "-f" "95f58f042834348948d5f540af0ee38f523e3d1b9ec68ed64579f7f19f69d2be"`
[INFO] [stdout] 95f58f042834348948d5f540af0ee38f523e3d1b9ec68ed64579f7f19f69d2be