[INFO] fetching crate yalskv 0.1.0...
[INFO] checking yalskv-0.1.0 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate yalskv 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate yalskv 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 yalskv 0.1.0
[INFO] finished tweaking crates.io crate yalskv 0.1.0
[INFO] tweaked toml for crates.io crate yalskv 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate yalskv 0.1.0 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" "+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] 3230f4dbc9d79d7e0301a33fed75308551e710a7bd5ed3264f41aa7883e4e1d8
[INFO] running `Command { std: "docker" "start" "-a" "3230f4dbc9d79d7e0301a33fed75308551e710a7bd5ed3264f41aa7883e4e1d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3230f4dbc9d79d7e0301a33fed75308551e710a7bd5ed3264f41aa7883e4e1d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3230f4dbc9d79d7e0301a33fed75308551e710a7bd5ed3264f41aa7883e4e1d8", kill_on_drop: false }`
[INFO] [stdout] 3230f4dbc9d79d7e0301a33fed75308551e710a7bd5ed3264f41aa7883e4e1d8
[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] e591a131fe74a0b247c7748e6be2b54b4d55b1899b9036b8bb9b214d3d2aeb7a
[INFO] running `Command { std: "docker" "start" "-a" "e591a131fe74a0b247c7748e6be2b54b4d55b1899b9036b8bb9b214d3d2aeb7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking yalskv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `self.files` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib.rs:122:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let path = self.id_to_dat_path(&self.id);
[INFO] [stdout]     |                    ---- immutable borrow occurs here
[INFO] [stdout] 122 |         let file = self.files.get_mut(&self.id).unwrap();
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 125 |         *file = StoreFile::make(self.id, &path)?;
[INFO] [stdout]     |                                          ----- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.index` because it is borrowed
[INFO] [stdout]    --> src/lib.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let path = self.id_to_dat_path(&self.id);
[INFO] [stdout]     |                    ---- `self.index` is borrowed here
[INFO] [stdout] ...
[INFO] [stdout] 126 |         self.index = merge(file, &mut chunks)?;
[INFO] [stdout]     |         ^^^^^^^^^^ `self.index` is assigned to here but it was already borrowed
[INFO] [stdout] ...
[INFO] [stdout] 131 |     }
[INFO] [stdout]     |     - borrow might be used here, when `path` is dropped and runs the destructor for type `impl AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `self.files` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib.rs:122:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let path = self.id_to_dat_path(&self.id);
[INFO] [stdout]     |                    ---- immutable borrow occurs here
[INFO] [stdout] 122 |         let file = self.files.get_mut(&self.id).unwrap();
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 125 |         *file = StoreFile::make(self.id, &path)?;
[INFO] [stdout]     |                                          ----- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.index` because it is borrowed
[INFO] [stdout]    --> src/lib.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let path = self.id_to_dat_path(&self.id);
[INFO] [stdout]     |                    ---- `self.index` is borrowed here
[INFO] [stdout] ...
[INFO] [stdout] 126 |         self.index = merge(file, &mut chunks)?;
[INFO] [stdout]     |         ^^^^^^^^^^ `self.index` is assigned to here but it was already borrowed
[INFO] [stdout] ...
[INFO] [stdout] 131 |     }
[INFO] [stdout]     |     - borrow might be used here, when `path` is dropped and runs the destructor for type `impl AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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, E0506.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0502, E0506.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yalskv` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `yalskv` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e591a131fe74a0b247c7748e6be2b54b4d55b1899b9036b8bb9b214d3d2aeb7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e591a131fe74a0b247c7748e6be2b54b4d55b1899b9036b8bb9b214d3d2aeb7a", kill_on_drop: false }`
[INFO] [stdout] e591a131fe74a0b247c7748e6be2b54b4d55b1899b9036b8bb9b214d3d2aeb7a