[INFO] cloning repository https://github.com/Qwertee/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Qwertee/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQwertee%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQwertee%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2c0f36e776e9f67457d46f3449a716ad4a7b1fe
[INFO] testing Qwertee/Rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQwertee%2FRust" "/workspace/builds/worker-56/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-56/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Qwertee/Rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Qwertee/Rust
[INFO] finished tweaking git repo https://github.com/Qwertee/Rust
[INFO] tweaked toml for git repo https://github.com/Qwertee/Rust written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate git repo https://github.com/Qwertee/Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98c1f5e31812a1283638e0db302c6cc442f90f28947f0ed30a5e42b882c0fe16
[INFO] running `Command { std: "docker" "start" "-a" "98c1f5e31812a1283638e0db302c6cc442f90f28947f0ed30a5e42b882c0fe16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98c1f5e31812a1283638e0db302c6cc442f90f28947f0ed30a5e42b882c0fe16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98c1f5e31812a1283638e0db302c6cc442f90f28947f0ed30a5e42b882c0fe16", kill_on_drop: false }`
[INFO] [stdout] 98c1f5e31812a1283638e0db302c6cc442f90f28947f0ed30a5e42b882c0fe16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d490082b2ae372d2cec84a0edc6c5fa798b4393a6de40abc618f5d99d42b43b
[INFO] running `Command { std: "docker" "start" "-a" "8d490082b2ae372d2cec84a0edc6c5fa798b4393a6de40abc618f5d99d42b43b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learn_rust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]  --> src/main.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let b = [0; 20]    // b: [i32; 20]
[INFO] [stdout]   |                    ^ help: add `;` here
[INFO] [stdout] 6 | 
[INFO] [stdout] 7 |     let c: (i32, &str) = (1, "Hello");  // tuple
[INFO] [stdout]   |     --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn_rust` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8d490082b2ae372d2cec84a0edc6c5fa798b4393a6de40abc618f5d99d42b43b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d490082b2ae372d2cec84a0edc6c5fa798b4393a6de40abc618f5d99d42b43b", kill_on_drop: false }`
[INFO] [stdout] 8d490082b2ae372d2cec84a0edc6c5fa798b4393a6de40abc618f5d99d42b43b