[INFO] cloning repository https://github.com/uranixcz/resource_mng
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uranixcz/resource_mng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furanixcz%2Fresource_mng", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furanixcz%2Fresource_mng'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f4cfb721277a1b0df22e9c20a38636010d6ab9b
[INFO] checking uranixcz/resource_mng against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furanixcz%2Fresource_mng" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uranixcz/resource_mng on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uranixcz/resource_mng
[INFO] finished tweaking git repo https://github.com/uranixcz/resource_mng
[INFO] tweaked toml for git repo https://github.com/uranixcz/resource_mng written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/uranixcz/resource_mng already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", 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] 3ad7514965c8331e8d83569124b9b6568c2ebb54657213785c2e3d6d89220a73
[INFO] running `Command { std: "docker" "start" "-a" "3ad7514965c8331e8d83569124b9b6568c2ebb54657213785c2e3d6d89220a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ad7514965c8331e8d83569124b9b6568c2ebb54657213785c2e3d6d89220a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad7514965c8331e8d83569124b9b6568c2ebb54657213785c2e3d6d89220a73", kill_on_drop: false }`
[INFO] [stdout] 3ad7514965c8331e8d83569124b9b6568c2ebb54657213785c2e3d6d89220a73
[INFO] running `Command { std: "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1bcddb2b46563e806b836479919ca7e06fcfbedf02177eac77f77ae669f1cfd
[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" "a1bcddb2b46563e806b836479919ca7e06fcfbedf02177eac77f77ae669f1cfd", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking resource-mng v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `std::boxed::Box<Instance>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:142:25
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub extern fn init() -> Box<Instance> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::boxed::Box<Instance>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:142:25
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub extern fn init() -> Box<Instance> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]     = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "a1bcddb2b46563e806b836479919ca7e06fcfbedf02177eac77f77ae669f1cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1bcddb2b46563e806b836479919ca7e06fcfbedf02177eac77f77ae669f1cfd", kill_on_drop: false }`
[INFO] [stdout] a1bcddb2b46563e806b836479919ca7e06fcfbedf02177eac77f77ae669f1cfd