[INFO] fetching crate dirx 0.1.0...
[INFO] checking dirx-0.1.0 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate dirx 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate dirx 0.1.0 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dirx 0.1.0
[INFO] finished tweaking crates.io crate dirx 0.1.0
[INFO] tweaked toml for crates.io crate dirx 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0059e639871fd182d4c6646026a18f95748648fee3cb1f1a9e764ae25f732884
[INFO] running `Command { std: "docker" "start" "-a" "0059e639871fd182d4c6646026a18f95748648fee3cb1f1a9e764ae25f732884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0059e639871fd182d4c6646026a18f95748648fee3cb1f1a9e764ae25f732884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0059e639871fd182d4c6646026a18f95748648fee3cb1f1a9e764ae25f732884", kill_on_drop: false }`
[INFO] [stdout] 0059e639871fd182d4c6646026a18f95748648fee3cb1f1a9e764ae25f732884
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92718e204f7dc5774300aef7dedf65963ee5e61b6e19f01f3844b070624e4d86
[INFO] running `Command { std: "docker" "start" "-a" "92718e204f7dc5774300aef7dedf65963ee5e61b6e19f01f3844b070624e4d86", kill_on_drop: false }`
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]    Compiling indoc v2.0.4
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking dirx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> src/lib.rs:172:23
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let scanner = ScanOptions::new()
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ creates a temporary value which is freed while still in use
[INFO] [stdout] 173 |             .scan(&mut idx, &root)
[INFO] [stdout] 174 |             .expect("failed to open root directory");
[INFO] [stdout]     |                                                     - temporary value is freed at the end of this statement
[INFO] [stdout] ...
[INFO] [stdout] 177 |             stringify_events(scanner),
[INFO] [stdout]     |                              ------- borrow later used here
[INFO] [stdout]     |
[INFO] [stdout] help: consider using a `let` binding to create a longer lived value
[INFO] [stdout]     |
[INFO] [stdout] 172 ~         let binding = ScanOptions::new();
[INFO] [stdout] 173 ~         let scanner = binding
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> src/lib.rs:220:23
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let scanner = ScanOptions::new()
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ creates a temporary value which is freed while still in use
[INFO] [stdout] 221 |             .scan(&mut idx, &root)
[INFO] [stdout] 222 |             .expect("failed to open root directory");
[INFO] [stdout]     |                                                     - temporary value is freed at the end of this statement
[INFO] [stdout] ...
[INFO] [stdout] 225 |             stringify_events(scanner),
[INFO] [stdout]     |                              ------- borrow later used here
[INFO] [stdout]     |
[INFO] [stdout] help: consider using a `let` binding to create a longer lived value
[INFO] [stdout]     |
[INFO] [stdout] 220 ~         let binding = ScanOptions::new();
[INFO] [stdout] 221 ~         let scanner = binding
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0716`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dirx` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "92718e204f7dc5774300aef7dedf65963ee5e61b6e19f01f3844b070624e4d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92718e204f7dc5774300aef7dedf65963ee5e61b6e19f01f3844b070624e4d86", kill_on_drop: false }`
[INFO] [stdout] 92718e204f7dc5774300aef7dedf65963ee5e61b6e19f01f3844b070624e4d86