[INFO] cloning repository https://github.com/roger-hamilton/jsonb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roger-hamilton/jsonb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froger-hamilton%2Fjsonb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froger-hamilton%2Fjsonb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8616a67c1d6ed3020e6af489d565d1e695813a2
[INFO] building roger-hamilton/jsonb against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froger-hamilton%2Fjsonb" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roger-hamilton/jsonb on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/roger-hamilton/jsonb
[INFO] finished tweaking git repo https://github.com/roger-hamilton/jsonb
[INFO] tweaked toml for git repo https://github.com/roger-hamilton/jsonb written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/roger-hamilton/jsonb 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitstream-rs v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5bbe17c95898c1f07ab67997647e8b537a240b9b5c98632d69826c34e95aef8
[INFO] running `Command { std: "docker" "start" "-a" "f5bbe17c95898c1f07ab67997647e8b537a240b9b5c98632d69826c34e95aef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5bbe17c95898c1f07ab67997647e8b537a240b9b5c98632d69826c34e95aef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5bbe17c95898c1f07ab67997647e8b537a240b9b5c98632d69826c34e95aef8", kill_on_drop: false }`
[INFO] [stdout] f5bbe17c95898c1f07ab67997647e8b537a240b9b5c98632d69826c34e95aef8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f0d4b9b32cbc6ff25d78f72b4b76407ff6268157342459c235050317078344f
[INFO] running `Command { std: "docker" "start" "-a" "5f0d4b9b32cbc6ff25d78f72b4b76407ff6268157342459c235050317078344f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitstream-rs v0.2.0
[INFO] [stderr]    Compiling jsonb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ops::Index,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing local variable `buf`
[INFO] [stdout]    --> src/main.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |             Ok(JValue::String(std::str::from_utf8(&buf).unwrap()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----^^^^^^^^^^^^
[INFO] [stdout]     |             |                                     |
[INFO] [stdout]     |             |                                     `buf` is borrowed here
[INFO] [stdout]     |             returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0515]: cannot return value referencing local variable `key_buf`
[INFO] [stdout]    --> src/main.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 let key = std::str::from_utf8(&key_buf).unwrap();
[INFO] [stdout]     |                                               -------- `key_buf` is borrowed here
[INFO] [stdout] ...
[INFO] [stdout] 194 |             Ok(JValue::Object(values))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jsonb` (bin "jsonb") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5f0d4b9b32cbc6ff25d78f72b4b76407ff6268157342459c235050317078344f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f0d4b9b32cbc6ff25d78f72b4b76407ff6268157342459c235050317078344f", kill_on_drop: false }`
[INFO] [stdout] 5f0d4b9b32cbc6ff25d78f72b4b76407ff6268157342459c235050317078344f