[INFO] cloning repository https://github.com/hegde-atri/my-rust-bible
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hegde-atri/my-rust-bible" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhegde-atri%2Fmy-rust-bible", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhegde-atri%2Fmy-rust-bible'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f785daf8f561d0633f47cb45cad3e62a5fa56352
[INFO] checking hegde-atri/my-rust-bible against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhegde-atri%2Fmy-rust-bible" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hegde-atri/my-rust-bible on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hegde-atri/my-rust-bible
[INFO] finished tweaking git repo https://github.com/hegde-atri/my-rust-bible
[INFO] tweaked toml for git repo https://github.com/hegde-atri/my-rust-bible written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hegde-atri/my-rust-bible 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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] feda00e94a4e4f9a3dedefb92744608ba0330688571390022651a976cf4d0c5c
[INFO] running `Command { std: "docker" "start" "-a" "feda00e94a4e4f9a3dedefb92744608ba0330688571390022651a976cf4d0c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feda00e94a4e4f9a3dedefb92744608ba0330688571390022651a976cf4d0c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feda00e94a4e4f9a3dedefb92744608ba0330688571390022651a976cf4d0c5c", kill_on_drop: false }`
[INFO] [stdout] feda00e94a4e4f9a3dedefb92744608ba0330688571390022651a976cf4d0c5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 173d8638faa6376dda868f3ce79036e4a7bfa837eb63b481c45a109a1ccb842a
[INFO] running `Command { std: "docker" "start" "-a" "173d8638faa6376dda868f3ce79036e4a7bfa837eb63b481c45a109a1ccb842a", kill_on_drop: false }`
[INFO] [stderr]     Checking learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `vectors` is never used
[INFO] [stdout]  --> src/standard_collections.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn vectors(){
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `&str` to `&str`
[INFO] [stdout]   --> src/standard_collections.rs:37:46
[INFO] [stdout]    |
[INFO] [stdout] 37 |     println!("a square has {} sides", shapes["square".into()]);
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learning` (bin "learning") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `vectors` is never used
[INFO] [stdout]  --> src/standard_collections.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn vectors(){
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `&str` to `&str`
[INFO] [stdout]   --> src/standard_collections.rs:37:46
[INFO] [stdout]    |
[INFO] [stdout] 37 |     println!("a square has {} sides", shapes["square".into()]);
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learning` (bin "learning" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "173d8638faa6376dda868f3ce79036e4a7bfa837eb63b481c45a109a1ccb842a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "173d8638faa6376dda868f3ce79036e4a7bfa837eb63b481c45a109a1ccb842a", kill_on_drop: false }`
[INFO] [stdout] 173d8638faa6376dda868f3ce79036e4a7bfa837eb63b481c45a109a1ccb842a