[INFO] cloning repository https://github.com/iamsuneeth/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamsuneeth/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamsuneeth%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamsuneeth%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9fed06f78eb5a8e01e0ec85f0ed383a84a4e075e
[INFO] checking iamsuneeth/rust-learning against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamsuneeth%2Frust-learning" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamsuneeth/rust-learning on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iamsuneeth/rust-learning
[INFO] finished tweaking git repo https://github.com/iamsuneeth/rust-learning
[INFO] tweaked toml for git repo https://github.com/iamsuneeth/rust-learning written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iamsuneeth/rust-learning 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasi v0.11.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rand_chacha v0.3.1
[INFO] [stderr]   Downloaded rand_core v0.6.4
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.17
[INFO] [stderr]   Downloaded getrandom v0.2.8
[INFO] [stderr]   Downloaded rand v0.8.5
[INFO] [stderr]   Downloaded libc v0.2.139
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26d0e3ccf2af9fd7db87e91e46468356d9fc1da42f1219edb49e224a856fc68a
[INFO] running `Command { std: "docker" "start" "-a" "26d0e3ccf2af9fd7db87e91e46468356d9fc1da42f1219edb49e224a856fc68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26d0e3ccf2af9fd7db87e91e46468356d9fc1da42f1219edb49e224a856fc68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26d0e3ccf2af9fd7db87e91e46468356d9fc1da42f1219edb49e224a856fc68a", kill_on_drop: false }`
[INFO] [stdout] 26d0e3ccf2af9fd7db87e91e46468356d9fc1da42f1219edb49e224a856fc68a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93b16690c1e7e844a9925d35e764474123e0ec053f307647f0c601c9446a574d
[INFO] running `Command { std: "docker" "start" "-a" "93b16690c1e7e844a9925d35e764474123e0ec053f307647f0c601c9446a574d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stdout]  --> src/bin/shape/mod.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "93b16690c1e7e844a9925d35e764474123e0ec053f307647f0c601c9446a574d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b16690c1e7e844a9925d35e764474123e0ec053f307647f0c601c9446a574d", kill_on_drop: false }`
[INFO] [stdout] 93b16690c1e7e844a9925d35e764474123e0ec053f307647f0c601c9446a574d