[INFO] fetching crate libscoop 0.1.0-beta.4... [INFO] checking libscoop-0.1.0-beta.4 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950 [INFO] extracting crate libscoop 0.1.0-beta.4 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate libscoop 0.1.0-beta.4 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 libscoop 0.1.0-beta.4 [INFO] finished tweaking crates.io crate libscoop 0.1.0-beta.4 [INFO] tweaked toml for crates.io crate libscoop 0.1.0-beta.4 written to /workspace/builds/worker-2-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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 01220e88bfb2483e10225b4e23b853dd43e6c415377237b1b29d90a09f6596bd [INFO] running `Command { std: "docker" "start" "-a" "01220e88bfb2483e10225b4e23b853dd43e6c415377237b1b29d90a09f6596bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "01220e88bfb2483e10225b4e23b853dd43e6c415377237b1b29d90a09f6596bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01220e88bfb2483e10225b4e23b853dd43e6c415377237b1b29d90a09f6596bd", kill_on_drop: false }` [INFO] [stdout] 01220e88bfb2483e10225b4e23b853dd43e6c415377237b1b29d90a09f6596bd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] dc5a46061f759792d7244f7ff8f474815e22d6266398d535939289a1b0cbf201 [INFO] running `Command { std: "docker" "start" "-a" "dc5a46061f759792d7244f7ff8f474815e22d6266398d535939289a1b0cbf201", kill_on_drop: false }` [INFO] [stderr] Compiling vcpkg v0.2.15 [INFO] [stderr] Compiling openssl-src v300.1.4+3.1.2 [INFO] [stderr] Compiling libssh2-sys v0.3.0 [INFO] [stderr] Compiling curl-sys v0.4.66+curl-8.3.0 [INFO] [stderr] Compiling libgit2-sys v0.15.2+1.6.4 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Compiling curl v0.4.44 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Checking option-ext v0.2.0 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Compiling openssl v0.10.57 [INFO] [stderr] Checking serde v1.0.188 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Checking url v2.4.1 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking dirs-sys v0.4.1 [INFO] [stderr] Checking nanorand v0.7.0 [INFO] [stderr] Checking rayon v1.7.0 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking bitflags v2.4.0 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking dirs v5.0.1 [INFO] [stderr] Checking remove_dir_all v0.7.0 [INFO] [stderr] Checking scoop-hash v0.1.0-beta.3 [INFO] [stderr] Compiling openssl-sys v0.9.93 [INFO] [stderr] Compiling libz-sys v1.1.12 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking flume v0.10.14 [INFO] [stderr] Checking sysinfo v0.29.10 [INFO] [stderr] Checking serde_json v1.0.107 [INFO] [stderr] Checking git2 v0.17.2 [INFO] [stderr] Checking libscoop v0.1.0-beta.4 (/opt/rustwide/workdir) [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> src/bucket.rs:179:38 [INFO] [stdout] | [INFO] [stdout] 179 | .filter_map(|de| par_read_dir(&de.path()).ok()) [INFO] [stdout] | ^^^^^^^^^^^^^^---------^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | temporary value created here [INFO] [stdout] | returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `path` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/bucket.rs:185:13 [INFO] [stdout] | [INFO] [stdout] 165 | let iter = if let Ok(entries) = par_read_dir(&path) { [INFO] [stdout] | ------------------- [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow occurs here [INFO] [stdout] | a temporary with access to the immutable borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 185 | path.pop(); [INFO] [stdout] | ^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] 186 | par_read_dir(&path)?.collect::>().into_par_iter() [INFO] [stdout] 187 | }; [INFO] [stdout] | - ... and the immutable borrow might be used here, when that temporary is dropped and runs the destructor for type `std::result::Result, std::io::Error>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> src/bucket.rs:179:38 [INFO] [stdout] | [INFO] [stdout] 179 | .filter_map(|de| par_read_dir(&de.path()).ok()) [INFO] [stdout] | ^^^^^^^^^^^^^^---------^^^^^^ [INFO] [stdout] | | | [INFO] [stdout] | | temporary value created here [INFO] [stdout] | returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `path` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/bucket.rs:185:13 [INFO] [stdout] | [INFO] [stdout] 165 | let iter = if let Ok(entries) = par_read_dir(&path) { [INFO] [stdout] | ------------------- [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow occurs here [INFO] [stdout] | a temporary with access to the immutable borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 185 | path.pop(); [INFO] [stdout] | ^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] 186 | par_read_dir(&path)?.collect::>().into_par_iter() [INFO] [stdout] 187 | }; [INFO] [stdout] | - ... and the immutable borrow might be used here, when that temporary is dropped and runs the destructor for type `std::result::Result, std::io::Error>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0502, E0515. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0502, E0515. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stderr] error: could not compile `libscoop` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `libscoop` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "dc5a46061f759792d7244f7ff8f474815e22d6266398d535939289a1b0cbf201", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc5a46061f759792d7244f7ff8f474815e22d6266398d535939289a1b0cbf201", kill_on_drop: false }` [INFO] [stdout] dc5a46061f759792d7244f7ff8f474815e22d6266398d535939289a1b0cbf201