[INFO] cloning repository https://github.com/calm1205/Rust_dev
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/calm1205/Rust_dev" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalm1205%2FRust_dev", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalm1205%2FRust_dev'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b2a246c75310ae810e8e18047d2f046c9e133e5
[INFO] checking calm1205/Rust_dev against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalm1205%2FRust_dev" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/calm1205/Rust_dev on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/calm1205/Rust_dev
[INFO] finished tweaking git repo https://github.com/calm1205/Rust_dev
[INFO] tweaked toml for git repo https://github.com/calm1205/Rust_dev written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/calm1205/Rust_dev already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b96fde8b072b07908183ffd7016fdc3a69f1d9583cfeeab5a70481686317f87
[INFO] running `Command { std: "docker" "start" "-a" "7b96fde8b072b07908183ffd7016fdc3a69f1d9583cfeeab5a70481686317f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b96fde8b072b07908183ffd7016fdc3a69f1d9583cfeeab5a70481686317f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b96fde8b072b07908183ffd7016fdc3a69f1d9583cfeeab5a70481686317f87", kill_on_drop: false }`
[INFO] [stdout] 7b96fde8b072b07908183ffd7016fdc3a69f1d9583cfeeab5a70481686317f87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2f82e0feb5cffb4447fd37acb0be471655fd7baf1aa4524f0156473232b4549
[INFO] running `Command { std: "docker" "start" "-a" "f2f82e0feb5cffb4447fd37acb0be471655fd7baf1aa4524f0156473232b4549", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust-lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed for `Vec<T>`
[INFO] [stdout]  --> src/generics.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 |   let number_list = vec![];
[INFO] [stdout]   |       -----------   ^^^^^^ cannot infer type for type parameter `T`
[INFO] [stdout]   |       |
[INFO] [stdout]   |       consider giving `number_list` the explicit type `Vec<T>`, where the type parameter `T` is specified
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `Vec<T>`
[INFO] [stdout]  --> src/generics.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 |   let number_list = vec![];
[INFO] [stdout]   |       -----------   ^^^^^^ cannot infer type for type parameter `T`
[INFO] [stdout]   |       |
[INFO] [stdout]   |       consider giving `number_list` the explicit type `Vec<T>`, where the type parameter `T` is specified
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-lesson` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f2f82e0feb5cffb4447fd37acb0be471655fd7baf1aa4524f0156473232b4549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2f82e0feb5cffb4447fd37acb0be471655fd7baf1aa4524f0156473232b4549", kill_on_drop: false }`
[INFO] [stdout] f2f82e0feb5cffb4447fd37acb0be471655fd7baf1aa4524f0156473232b4549