[INFO] cloning repository https://github.com/DavidLee18/rust_data
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DavidLee18/rust_data" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidLee18%2Frust_data", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidLee18%2Frust_data'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 062ec7de2cf06be3b1a28d7e9001bb0ad11ff066
[INFO] building DavidLee18/rust_data against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidLee18%2Frust_data" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DavidLee18/rust_data on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DavidLee18/rust_data
[INFO] finished tweaking git repo https://github.com/DavidLee18/rust_data
[INFO] tweaked toml for git repo https://github.com/DavidLee18/rust_data written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/DavidLee18/rust_data 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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2462812d74f9349c31e03a8fdee183fe6befb8b99a76558b9404e890a50c0095
[INFO] running `Command { std: "docker" "start" "-a" "2462812d74f9349c31e03a8fdee183fe6befb8b99a76558b9404e890a50c0095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2462812d74f9349c31e03a8fdee183fe6befb8b99a76558b9404e890a50c0095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2462812d74f9349c31e03a8fdee183fe6befb8b99a76558b9404e890a50c0095", kill_on_drop: false }`
[INFO] [stdout] 2462812d74f9349c31e03a8fdee183fe6befb8b99a76558b9404e890a50c0095
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0136b1a3ba1b73ea0766191d3ded6188e7d3292e6ae6223a3b2ab1c2f6d7fbcc
[INFO] running `Command { std: "docker" "start" "-a" "0136b1a3ba1b73ea0766191d3ded6188e7d3292e6ae6223a3b2ab1c2f6d7fbcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_data v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `v` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 9  |     let x = v.peek();
[INFO] [stdout]    |             - immutable borrow occurs here
[INFO] [stdout] 10 |     println!("{:?}", x);
[INFO] [stdout] 11 |     let y = v.pop();
[INFO] [stdout]    |             ^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 12 |     println!("{:?}", y);
[INFO] [stdout] 13 |     print!("{:?}", x);
[INFO] [stdout]    |                    - immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_data` (bin "rust_data") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0136b1a3ba1b73ea0766191d3ded6188e7d3292e6ae6223a3b2ab1c2f6d7fbcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0136b1a3ba1b73ea0766191d3ded6188e7d3292e6ae6223a3b2ab1c2f6d7fbcc", kill_on_drop: false }`
[INFO] [stdout] 0136b1a3ba1b73ea0766191d3ded6188e7d3292e6ae6223a3b2ab1c2f6d7fbcc
