[INFO] cloning repository https://github.com/dmerejkowsky/rucp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmerejkowsky/rucp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmerejkowsky%2Frucp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmerejkowsky%2Frucp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4101d7a0eaab7af2e2328a391478c9863d3cad5
[INFO] checking dmerejkowsky/rucp against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmerejkowsky%2Frucp" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmerejkowsky/rucp on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmerejkowsky/rucp
[INFO] finished tweaking git repo https://github.com/dmerejkowsky/rucp
[INFO] tweaked toml for git repo https://github.com/dmerejkowsky/rucp written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/dmerejkowsky/rucp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f560b9fa97a8008fb22af7193b317530662a3111ed5e23b36b4f246fc36400f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f560b9fa97a8008fb22af7193b317530662a3111ed5e23b36b4f246fc36400f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f560b9fa97a8008fb22af7193b317530662a3111ed5e23b36b4f246fc36400f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f560b9fa97a8008fb22af7193b317530662a3111ed5e23b36b4f246fc36400f", kill_on_drop: false }`
[INFO] [stdout] 2f560b9fa97a8008fb22af7193b317530662a3111ed5e23b36b4f246fc36400f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 277868b21697044b0f7038223f4c45df384cca6f62d2af9d356b2b4b55958c47
[INFO] running `Command { std: "docker" "start" "-a" "277868b21697044b0f7038223f4c45df384cca6f62d2af9d356b2b4b55958c47", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking rucp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `MkDir`
[INFO] [stdout]   --> src/transfer.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     MkDir(PathBuf),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MkDir`
[INFO] [stdout]   --> src/transfer.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     MkDir(PathBuf),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "277868b21697044b0f7038223f4c45df384cca6f62d2af9d356b2b4b55958c47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277868b21697044b0f7038223f4c45df384cca6f62d2af9d356b2b4b55958c47", kill_on_drop: false }`
[INFO] [stdout] 277868b21697044b0f7038223f4c45df384cca6f62d2af9d356b2b4b55958c47