[INFO] cloning repository https://github.com/achkasov/nanoid-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/achkasov/nanoid-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fachkasov%2Fnanoid-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fachkasov%2Fnanoid-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1b66f396b08e26989c8a29caf4426f43a5dac25
[INFO] checking achkasov/nanoid-rust against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fachkasov%2Fnanoid-rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/achkasov/nanoid-rust on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/achkasov/nanoid-rust
[INFO] finished tweaking git repo https://github.com/achkasov/nanoid-rust
[INFO] tweaked toml for git repo https://github.com/achkasov/nanoid-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/achkasov/nanoid-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a661bb75e1f9661001f6e485b7e4741f33fd549d6ff6d7e4e7471ed1366993ab
[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" "a661bb75e1f9661001f6e485b7e4741f33fd549d6ff6d7e4e7471ed1366993ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a661bb75e1f9661001f6e485b7e4741f33fd549d6ff6d7e4e7471ed1366993ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a661bb75e1f9661001f6e485b7e4741f33fd549d6ff6d7e4e7471ed1366993ab", kill_on_drop: false }`
[INFO] [stdout] a661bb75e1f9661001f6e485b7e4741f33fd549d6ff6d7e4e7471ed1366993ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbb77e0c5cf3782a50507423dcc15796432248093c3782f51619e16a406cc051
[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" "dbb77e0c5cf3782a50507423dcc15796432248093c3782f51619e16a406cc051", kill_on_drop: false }`
[INFO] [stderr]     Checking nanoid-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/main.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn generate(rng: &mut FnMut(&mut [u8]), alphabet: &str, size: usize) -> Result<String, &'static str> {
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut [u8])`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/main.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn generate(rng: &mut FnMut(&mut [u8]), alphabet: &str, size: usize) -> Result<String, &'static str> {
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut [u8])`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "dbb77e0c5cf3782a50507423dcc15796432248093c3782f51619e16a406cc051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb77e0c5cf3782a50507423dcc15796432248093c3782f51619e16a406cc051", kill_on_drop: false }`
[INFO] [stdout] dbb77e0c5cf3782a50507423dcc15796432248093c3782f51619e16a406cc051