[INFO] fetching crate tracing_vec 0.1.1...
[INFO] checking tracing_vec-0.1.1 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate tracing_vec 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate tracing_vec 0.1.1 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 tracing_vec 0.1.1
[INFO] finished tweaking crates.io crate tracing_vec 0.1.1
[INFO] tweaked toml for crates.io crate tracing_vec 0.1.1 written to /workspace/builds/worker-5-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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] eadb6c95becdaff891a987b293b0f1d41dccbc3cd4f048b7249ab4c1c20ad8e5
[INFO] running `Command { std: "docker" "start" "-a" "eadb6c95becdaff891a987b293b0f1d41dccbc3cd4f048b7249ab4c1c20ad8e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eadb6c95becdaff891a987b293b0f1d41dccbc3cd4f048b7249ab4c1c20ad8e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eadb6c95becdaff891a987b293b0f1d41dccbc3cd4f048b7249ab4c1c20ad8e5", kill_on_drop: false }`
[INFO] [stdout] eadb6c95becdaff891a987b293b0f1d41dccbc3cd4f048b7249ab4c1c20ad8e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fbc967de31f4953a2008bded7ae2a4312dfdbb218aba4b284176f857246b8cf2
[INFO] running `Command { std: "docker" "start" "-a" "fbc967de31f4953a2008bded7ae2a4312dfdbb218aba4b284176f857246b8cf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking tracing_vec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/tracing_vec.rs:459:28
[INFO] [stdout]     |
[INFO] [stdout] 459 |         self.indices().zip(self.iter_mut())
[INFO] [stdout]     |         ----           --- ^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout]     |         |              |
[INFO] [stdout]     |         |              immutable borrow later used by call
[INFO] [stdout]     |         immutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/tracing_vec.rs:459:28
[INFO] [stdout]     |
[INFO] [stdout] 459 |         self.indices().zip(self.iter_mut())
[INFO] [stdout]     |         ----           --- ^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout]     |         |              |
[INFO] [stdout]     |         |              immutable borrow later used by call
[INFO] [stdout]     |         immutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/tracing_vec.rs:475:37
[INFO] [stdout]     |
[INFO] [stdout] 475 |         self.timeless_indices().zip(self.iter_mut())
[INFO] [stdout]     |         ----                    --- ^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout]     |         |                       |
[INFO] [stdout]     |         |                       immutable borrow later used by call
[INFO] [stdout]     |         immutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/tracing_vec.rs:475:37
[INFO] [stdout]     |
[INFO] [stdout] 475 |         self.timeless_indices().zip(self.iter_mut())
[INFO] [stdout]     |         ----                    --- ^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout]     |         |                       |
[INFO] [stdout]     |         |                       immutable borrow later used by call
[INFO] [stdout]     |         immutable borrow occurs here
[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 E0502`.
[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 E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracing_vec` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tracing_vec` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fbc967de31f4953a2008bded7ae2a4312dfdbb218aba4b284176f857246b8cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbc967de31f4953a2008bded7ae2a4312dfdbb218aba4b284176f857246b8cf2", kill_on_drop: false }`
[INFO] [stdout] fbc967de31f4953a2008bded7ae2a4312dfdbb218aba4b284176f857246b8cf2