[INFO] fetching crate machine-uid 0.1.0...
[INFO] checking machine-uid-0.1.0 against master#de32266a1780aa4ef748ce7f6200a1554fad0aca for pr-75585
[INFO] extracting crate machine-uid 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate machine-uid 0.1.0 on toolchain de32266a1780aa4ef748ce7f6200a1554fad0aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate machine-uid 0.1.0
[INFO] finished tweaking crates.io crate machine-uid 0.1.0
[INFO] tweaked toml for crates.io crate machine-uid 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e30d27bb374364f6b07dce2d76652428de6be45479ad6acb2df5d4a920b6411
[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" "2e30d27bb374364f6b07dce2d76652428de6be45479ad6acb2df5d4a920b6411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e30d27bb374364f6b07dce2d76652428de6be45479ad6acb2df5d4a920b6411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e30d27bb374364f6b07dce2d76652428de6be45479ad6acb2df5d4a920b6411", kill_on_drop: false }`
[INFO] [stdout] 2e30d27bb374364f6b07dce2d76652428de6be45479ad6acb2df5d4a920b6411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f2d68af45ed13100c792218c943df56dd729b4f34425ba2f73075d0e519d37f
[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" "9f2d68af45ed13100c792218c943df56dd729b4f34425ba2f73075d0e519d37f", kill_on_drop: false }`
[INFO] [stderr]     Checking machine-uid v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:64:53
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn read_file(file_path: &str) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[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/lib.rs:83:51
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn get_machine_id() -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:64:53
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn read_file(file_path: &str) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[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/lib.rs:83:51
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn get_machine_id() -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "9f2d68af45ed13100c792218c943df56dd729b4f34425ba2f73075d0e519d37f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f2d68af45ed13100c792218c943df56dd729b4f34425ba2f73075d0e519d37f", kill_on_drop: false }`
[INFO] [stdout] 9f2d68af45ed13100c792218c943df56dd729b4f34425ba2f73075d0e519d37f