[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] checking DavidLee18/rust_data against try#a3dffdb3a32d0dedc198f9de7d43173f3eb6727b for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidLee18%2Frust_data" "/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/DavidLee18/rust_data on toolchain a3dffdb3a32d0dedc198f9de7d43173f3eb6727b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "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-5-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" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09093d56395a162d10678a3cfd027f78d0b1b610da9e0d6df9c14af25aa381cb
[INFO] running `Command { std: "docker" "start" "-a" "09093d56395a162d10678a3cfd027f78d0b1b610da9e0d6df9c14af25aa381cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09093d56395a162d10678a3cfd027f78d0b1b610da9e0d6df9c14af25aa381cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09093d56395a162d10678a3cfd027f78d0b1b610da9e0d6df9c14af25aa381cb", kill_on_drop: false }`
[INFO] [stdout] 09093d56395a162d10678a3cfd027f78d0b1b610da9e0d6df9c14af25aa381cb
[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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b07969eabd09a12a2b1fa1a0335856bdd6f45a20d68d2d061984497ed53c0488
[INFO] running `Command { std: "docker" "start" "-a" "b07969eabd09a12a2b1fa1a0335856bdd6f45a20d68d2d061984497ed53c0488", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] [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] [stderr] error: could not compile `rust_data` (bin "rust_data") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust_data` (bin "rust_data" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b07969eabd09a12a2b1fa1a0335856bdd6f45a20d68d2d061984497ed53c0488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b07969eabd09a12a2b1fa1a0335856bdd6f45a20d68d2d061984497ed53c0488", kill_on_drop: false }`
[INFO] [stdout] b07969eabd09a12a2b1fa1a0335856bdd6f45a20d68d2d061984497ed53c0488
