[INFO] fetching crate jsave 0.2.1... [INFO] testing jsave-0.2.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1 [INFO] extracting crate jsave 0.2.1 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate jsave 0.2.1 [INFO] finished tweaking crates.io crate jsave 0.2.1 [INFO] tweaked toml for crates.io crate jsave 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate jsave 0.2.1 on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e64068907cc6635c4559536dd3c1322c7bffc5a7b9ed49f4f758415ffdf2348a [INFO] running `Command { std: "docker" "start" "-a" "e64068907cc6635c4559536dd3c1322c7bffc5a7b9ed49f4f758415ffdf2348a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e64068907cc6635c4559536dd3c1322c7bffc5a7b9ed49f4f758415ffdf2348a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e64068907cc6635c4559536dd3c1322c7bffc5a7b9ed49f4f758415ffdf2348a", kill_on_drop: false }` [INFO] [stdout] e64068907cc6635c4559536dd3c1322c7bffc5a7b9ed49f4f758415ffdf2348a [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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1dc105baa8dfd9aef8db3cf8ce38883c3f45d79f9338ee0c715a5b79ad858faf [INFO] running `Command { std: "docker" "start" "-a" "1dc105baa8dfd9aef8db3cf8ce38883c3f45d79f9338ee0c715a5b79ad858faf", kill_on_drop: false }` [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling jsave v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: expected a `FnOnce(&T)` closure, found `F` [INFO] [stdout] --> src/remutex.rs:192:52 [INFO] [stdout] | [INFO] [stdout] 192 | InnerReentrantMutexGuard::try_map(s.guard, f).map_or_else( [INFO] [stdout] | --------------------------------- ^ expected an `FnOnce(&T)` closure, found `F` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = note: expected a closure with signature `for<'a> fn(&'a _)` [INFO] [stdout] found a closure with signature `fn(&mut _)` [INFO] [stdout] note: required by a bound in `parking_lot::lock_api::ReentrantMutexGuard::<'a, R, G, T>::try_map` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lock_api-0.4.14/src/remutex.rs:672:12 [INFO] [stdout] | [INFO] [stdout] 667 | pub fn try_map( [INFO] [stdout] | ------- required by a bound in this associated function [INFO] [stdout] ... [INFO] [stdout] 672 | F: FnOnce(&T) -> Option<&U>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `ReentrantMutexGuard::<'a, R, G, T>::try_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `jsave` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "1dc105baa8dfd9aef8db3cf8ce38883c3f45d79f9338ee0c715a5b79ad858faf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1dc105baa8dfd9aef8db3cf8ce38883c3f45d79f9338ee0c715a5b79ad858faf", kill_on_drop: false }` [INFO] [stdout] 1dc105baa8dfd9aef8db3cf8ce38883c3f45d79f9338ee0c715a5b79ad858faf