[INFO] updating cached repository https://github.com/verkehrsministerium/kraftfahrzeug
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3b89ac05d850b66b624e0d98196d209bf7082a6
[INFO] checking verkehrsministerium/kraftfahrzeug against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fverkehrsministerium%2Fkraftfahrzeug" "/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/verkehrsministerium/kraftfahrzeug on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/verkehrsministerium/kraftfahrzeug
[INFO] finished tweaking git repo https://github.com/verkehrsministerium/kraftfahrzeug
[INFO] tweaked toml for git repo https://github.com/verkehrsministerium/kraftfahrzeug written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/verkehrsministerium/kraftfahrzeug already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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] 4dbb09113296d53e666c36f7fe85949050b9ba935f4b0fdbd70932e585b43f98
[INFO] running `"docker" "start" "-a" "4dbb09113296d53e666c36f7fe85949050b9ba935f4b0fdbd70932e585b43f98"`
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]     Checking indextree v4.0.0
[INFO] [stderr]     Checking enum-map-internals v0.2.0
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking notify v4.0.13
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling enum-map-derive v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.100
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling enumset_derive v0.4.0
[INFO] [stderr]     Checking enum-map v0.6.0
[INFO] [stderr]     Checking enumset v0.4.0
[INFO] [stderr]     Checking cursive v0.13.0
[INFO] [stderr]     Checking cursive-tabs v0.2.1
[INFO] [stderr]     Checking cursive-aligned-view v0.1.3
[INFO] [stderr]     Checking cursive-async-view v0.1.3
[INFO] [stderr]     Checking cursive-multiplex v0.2.10
[INFO] [stderr]     Checking flexi_logger v0.14.3
[INFO] [stderr]     Checking cursive-flexi-logger-view v0.1.1
[INFO] [stderr]     Checking kraftfahrzeug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `cursive_async_view::AsyncView`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use cursive_async_view::AsyncView;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cursive_async_view::AsyncView`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use cursive_async_view::AsyncView;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binary`
[INFO] [stderr]   --> src/message/mod.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     Binary(Vec<u8>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binary`
[INFO] [stderr]   --> src/message/mod.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     Binary(Vec<u8>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `"docker" "inspect" "4dbb09113296d53e666c36f7fe85949050b9ba935f4b0fdbd70932e585b43f98"`
[INFO] running `"docker" "rm" "-f" "4dbb09113296d53e666c36f7fe85949050b9ba935f4b0fdbd70932e585b43f98"`
[INFO] [stdout] 4dbb09113296d53e666c36f7fe85949050b9ba935f4b0fdbd70932e585b43f98