[INFO] cloning repository https://github.com/dmichiels/RustFBP
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmichiels/RustFBP" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2FRustFBP", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2FRustFBP'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88859ff8361765c5fd3d28b2a5771bdbf12fa035
[INFO] checking dmichiels/RustFBP/88859ff8361765c5fd3d28b2a5771bdbf12fa035 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2FRustFBP" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmichiels/RustFBP on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmichiels/RustFBP
[INFO] finished tweaking git repo https://github.com/dmichiels/RustFBP
[INFO] tweaked toml for git repo https://github.com/dmichiels/RustFBP written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dmichiels/RustFBP 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded capnpc v0.5.1
[INFO] [stderr]   Downloaded libloading v0.2.0
[INFO] [stderr]   Downloaded byteorder v0.3.13
[INFO] [stderr]   Downloaded lazy_static v0.1.15
[INFO] [stderr]   Downloaded capnp v0.5.2
[INFO] [stderr]   Downloaded kernel32-sys v0.2.1
[INFO] [stderr]   Downloaded winapi v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56c81a76e161fe50249461e48c89b85e55d8bb90bc300bfdf34778665d9a3f44
[INFO] running `Command { std: "docker" "start" "-a" "56c81a76e161fe50249461e48c89b85e55d8bb90bc300bfdf34778665d9a3f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56c81a76e161fe50249461e48c89b85e55d8bb90bc300bfdf34778665d9a3f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c81a76e161fe50249461e48c89b85e55d8bb90bc300bfdf34778665d9a3f44", kill_on_drop: false }`
[INFO] [stdout] 56c81a76e161fe50249461e48c89b85e55d8bb90bc300bfdf34778665d9a3f44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 246d7cdd10d286d1a01068c8ab947a3d0865e728deb158b3384862e739688860
[INFO] running `Command { std: "docker" "start" "-a" "246d7cdd10d286d1a01068c8ab947a3d0865e728deb158b3384862e739688860", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]    Compiling libloading v0.2.0
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]     Checking capnp v0.5.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stdout] error[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/capnp-0.5.2/src/private/layout.rs:630:47
[INFO] [stdout]     |
[INFO] [stdout] 630 |         let ptr = try!(follow_fars(&mut reff, (*reff).target(), &mut segment));
[INFO] [stdout]     |                        ----------- ---------  ^^^^^^^ immutable borrow occurs here
[INFO] [stdout]     |                        |           |
[INFO] [stdout]     |                        |           mutable borrow occurs here
[INFO] [stdout]     |                        mutable borrow later used by call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `capnp` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "246d7cdd10d286d1a01068c8ab947a3d0865e728deb158b3384862e739688860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "246d7cdd10d286d1a01068c8ab947a3d0865e728deb158b3384862e739688860", kill_on_drop: false }`
[INFO] [stdout] 246d7cdd10d286d1a01068c8ab947a3d0865e728deb158b3384862e739688860