[INFO] updating cached repository https://github.com/FauxFaux/fappa
[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] 108cc96304a05a2a1ed2856f4777aaca5bff9236
[INFO] checking FauxFaux/fappa against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Ffappa" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FauxFaux/fappa on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/FauxFaux/fappa
[INFO] finished tweaking git repo https://github.com/FauxFaux/fappa
[INFO] tweaked toml for git repo https://github.com/FauxFaux/fappa written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/FauxFaux/fappa already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] ac6e3b784c2723779488bcdd3d8e4184d7b8670a21720cb243b7690e7d6d1784
[INFO] running `"docker" "start" "-a" "ac6e3b784c2723779488bcdd3d8e4184d7b8670a21720cb243b7690e7d6d1784"`
[INFO] [stderr]     Checking chunked_transfer v1.0.0
[INFO] [stderr]     Checking qstring v0.7.0
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking os_pipe v0.9.1
[INFO] [stderr]     Checking reflink v0.1.3 (https://github.com/nicokoch/reflink?rev=e8d93b465f5d9ad340cd052b64bbc77b8ee107e2#e8d93b46)
[INFO] [stderr]     Checking psutil v1.7.0
[INFO] [stderr]     Checking flate2 v1.0.12
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling libssh2-sys v0.2.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libgit2-sys v0.9.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking git2 v0.10.1
[INFO] [stderr]     Checking ureq v0.11.2
[INFO] [stderr]     Checking fappa v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/build.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 92  | /     unimplemented!(
[INFO] [stderr] 93  | |         r"crate::dump_lines(
[INFO] [stderr] 94  | |         *release,
[INFO] [stderr] 95  | |         &docker.images().build(
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |     )?"
[INFO] [stderr] 100 | |     );
[INFO] [stderr]     | |______- any code following this expression is unreachable
[INFO] [stderr] 101 | 
[INFO] [stderr] 102 |       let mut new: Vec<String> = Vec::new();
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/build.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 92  | /     unimplemented!(
[INFO] [stderr] 93  | |         r"crate::dump_lines(
[INFO] [stderr] 94  | |         *release,
[INFO] [stderr] 95  | |         &docker.images().build(
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |     )?"
[INFO] [stderr] 100 | |     );
[INFO] [stderr]     | |______- any code following this expression is unreachable
[INFO] [stderr] 101 | 
[INFO] [stderr] 102 |       let mut new: Vec<String> = Vec::new();
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 32s
[INFO] running `"docker" "inspect" "ac6e3b784c2723779488bcdd3d8e4184d7b8670a21720cb243b7690e7d6d1784"`
[INFO] running `"docker" "rm" "-f" "ac6e3b784c2723779488bcdd3d8e4184d7b8670a21720cb243b7690e7d6d1784"`
[INFO] [stdout] ac6e3b784c2723779488bcdd3d8e4184d7b8670a21720cb243b7690e7d6d1784