[INFO] cloning repository https://github.com/sile/plumtuna
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sile/plumtuna" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 36db99a3e1a0a7b4a784c6f458905f6ba2d9d351
[INFO] checking sile/plumtuna against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sile/plumtuna on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sile/plumtuna
[INFO] finished tweaking git repo https://github.com/sile/plumtuna
[INFO] tweaked toml for git repo https://github.com/sile/plumtuna written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sile/plumtuna already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fibers_rpc v0.3.0
[INFO] [stderr]   Downloaded plumcast v0.1.5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ebcb15d5e14d19c63e6bfde2dd53e535af90ca72db5a2d2b32ba7766b63d284a
[INFO] running `"docker" "start" "-a" "ebcb15d5e14d19c63e6bfde2dd53e535af90ca72db5a2d2b32ba7766b63d284a"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking atomic_immut v0.1.4
[INFO] [stderr]     Checking factory v0.1.1
[INFO] [stderr]     Checking plumtree v0.1.1
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking libflate v0.1.20
[INFO] [stderr]     Checking hyparview v0.1.3
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking slog-scope v4.1.1
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking fibers v0.1.12
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking fibers_global v0.1.2
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking prometrics v0.1.11
[INFO] [stderr]     Checking bytecodec v0.4.11
[INFO] [stderr]     Checking sloggers v0.3.2
[INFO] [stderr] error: unused boxed `std::ops::FnMut` trait object in field `0` that must be used
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prometrics-0.1.11/src/registry.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 self.collectors.swap_remove(i);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `prometrics`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ebcb15d5e14d19c63e6bfde2dd53e535af90ca72db5a2d2b32ba7766b63d284a"`
[INFO] running `"docker" "rm" "-f" "ebcb15d5e14d19c63e6bfde2dd53e535af90ca72db5a2d2b32ba7766b63d284a"`
[INFO] [stdout] ebcb15d5e14d19c63e6bfde2dd53e535af90ca72db5a2d2b32ba7766b63d284a