[INFO] cloning repository https://github.com/dmichiels/temp_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/temp_rustfbp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2Ftemp_rustfbp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2Ftemp_rustfbp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 105878fe08b40256bdcf35d7b94412919d25f2ea
[INFO] checking dmichiels/temp_rustfbp/105878fe08b40256bdcf35d7b94412919d25f2ea against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2Ftemp_rustfbp" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmichiels/temp_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/temp_rustfbp
[INFO] finished tweaking git repo https://github.com/dmichiels/temp_rustfbp
[INFO] tweaked toml for git repo https://github.com/dmichiels/temp_rustfbp written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dmichiels/temp_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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded threadpool v1.3.1
[INFO] [stderr]   Downloaded capnp v0.7.1
[INFO] [stderr]   Downloaded serde_json v0.7.4
[INFO] [stderr]   Downloaded serde v0.7.14
[INFO] [stderr]   Downloaded num-traits v0.1.33
[INFO] [stderr]   Downloaded capnpc v0.7.1
[INFO] [stderr]   Downloaded target_build_utils v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f6fde43d1c368ac1c23aa92569fd5ad8b1a83568f72e2f280bca1aa27499b52b
[INFO] running `Command { std: "docker" "start" "-a" "f6fde43d1c368ac1c23aa92569fd5ad8b1a83568f72e2f280bca1aa27499b52b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6fde43d1c368ac1c23aa92569fd5ad8b1a83568f72e2f280bca1aa27499b52b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6fde43d1c368ac1c23aa92569fd5ad8b1a83568f72e2f280bca1aa27499b52b", kill_on_drop: false }`
[INFO] [stdout] f6fde43d1c368ac1c23aa92569fd5ad8b1a83568f72e2f280bca1aa27499b52b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d2f3e48253b07758649be17728074c5cfcb6bc3e9546867f6fe9adf865aa47ce
[INFO] running `Command { std: "docker" "start" "-a" "d2f3e48253b07758649be17728074c5cfcb6bc3e9546867f6fe9adf865aa47ce", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling serde v0.7.14
[INFO] [stderr]    Compiling num-traits v0.1.33
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]     Checking quick-error v1.1.0
[INFO] [stderr]     Checking threadpool v1.3.1
[INFO] [stderr]     Checking capnp v0.7.1
[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-0.7.1/src/private/layout.rs:639:47
[INFO] [stdout]     |
[INFO] [stdout] 639 |         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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d2f3e48253b07758649be17728074c5cfcb6bc3e9546867f6fe9adf865aa47ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2f3e48253b07758649be17728074c5cfcb6bc3e9546867f6fe9adf865aa47ce", kill_on_drop: false }`
[INFO] [stdout] d2f3e48253b07758649be17728074c5cfcb6bc3e9546867f6fe9adf865aa47ce