[INFO] cloning repository https://github.com/MaciejWarchalowski/rust_hello
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MaciejWarchalowski/rust_hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaciejWarchalowski%2Frust_hello"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaciejWarchalowski%2Frust_hello'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1939d66dd6b46eff86bbe7c56e0e92c78caeec51
[INFO] testing MaciejWarchalowski/rust_hello against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaciejWarchalowski%2Frust_hello" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaciejWarchalowski/rust_hello on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MaciejWarchalowski/rust_hello
[INFO] finished tweaking git repo https://github.com/MaciejWarchalowski/rust_hello
[INFO] tweaked toml for git repo https://github.com/MaciejWarchalowski/rust_hello written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/MaciejWarchalowski/rust_hello already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c43d450423f4842c3b798133c8f4704d81c6b776c8ec866df02ede9b0635859
[INFO] running `"docker" "start" "-a" "0c43d450423f4842c3b798133c8f4704d81c6b776c8ec866df02ede9b0635859"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Job = Box<FnOnce() + Send + 'static>;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() + Send + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/lib.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   workers: Vec<Worker>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/lib.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   id: usize,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/lib.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   thread: thread::JoinHandle<()>
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: path statement with no effect
[INFO] [stderr]   --> src/lib.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let thread = thread::spawn(|| { receiver; });
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(path_statements)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     self.sender.send(job);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "0c43d450423f4842c3b798133c8f4704d81c6b776c8ec866df02ede9b0635859"`
[INFO] running `"docker" "rm" "-f" "0c43d450423f4842c3b798133c8f4704d81c6b776c8ec866df02ede9b0635859"`
[INFO] [stdout] 0c43d450423f4842c3b798133c8f4704d81c6b776c8ec866df02ede9b0635859
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e512c2cef15b3cc6778975ff9b659d6cd97bef8ba68409f256c9a3bad011310d
[INFO] running `"docker" "start" "-a" "e512c2cef15b3cc6778975ff9b659d6cd97bef8ba68409f256c9a3bad011310d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Job = Box<FnOnce() + Send + 'static>;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() + Send + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/lib.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   workers: Vec<Worker>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/lib.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   id: usize,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/lib.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   thread: thread::JoinHandle<()>
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: path statement with no effect
[INFO] [stderr]   --> src/lib.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let thread = thread::spawn(|| { receiver; });
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(path_statements)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     self.sender.send(job);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Job = Box<FnOnce() + Send + 'static>;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() + Send + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/lib.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   workers: Vec<Worker>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/lib.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   id: usize,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/lib.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   thread: thread::JoinHandle<()>
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: path statement with no effect
[INFO] [stderr]   --> src/lib.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let thread = thread::spawn(|| { receiver; });
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(path_statements)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     self.sender.send(job);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "e512c2cef15b3cc6778975ff9b659d6cd97bef8ba68409f256c9a3bad011310d"`
[INFO] running `"docker" "rm" "-f" "e512c2cef15b3cc6778975ff9b659d6cd97bef8ba68409f256c9a3bad011310d"`
[INFO] [stdout] e512c2cef15b3cc6778975ff9b659d6cd97bef8ba68409f256c9a3bad011310d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 71382485d6ff79178d5dc40a630f6a0404f464478c7be6112e48276f2568f791
[INFO] running `"docker" "start" "-a" "71382485d6ff79178d5dc40a630f6a0404f464478c7be6112e48276f2568f791"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Job = Box<FnOnce() + Send + 'static>;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() + Send + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/lib.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   workers: Vec<Worker>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/lib.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   id: usize,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/lib.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   thread: thread::JoinHandle<()>
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: path statement with no effect
[INFO] [stderr]   --> src/lib.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let thread = thread::spawn(|| { receiver; });
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(path_statements)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     self.sender.send(job);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:9:16
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Job = Box<FnOnce() + Send + 'static>;
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce() + Send + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]  --> src/lib.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   workers: Vec<Worker>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/lib.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   id: usize,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/lib.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   thread: thread::JoinHandle<()>
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: path statement with no effect
[INFO] [stderr]   --> src/lib.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let thread = thread::spawn(|| { receiver; });
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(path_statements)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     self.sender.send(job);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello-1db0144662e101f5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/main-dff685b398d12a57
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests hello
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "71382485d6ff79178d5dc40a630f6a0404f464478c7be6112e48276f2568f791"`
[INFO] running `"docker" "rm" "-f" "71382485d6ff79178d5dc40a630f6a0404f464478c7be6112e48276f2568f791"`
[INFO] [stdout] 71382485d6ff79178d5dc40a630f6a0404f464478c7be6112e48276f2568f791