[INFO] cloning repository https://github.com/jw3/example-scala-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jw3/example-scala-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3%2Fexample-scala-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3%2Fexample-scala-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c74216224bc4094d05e18b6811c6ebf34e3716ed
[INFO] testing jw3/example-scala-rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3%2Fexample-scala-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jw3/example-scala-rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jw3/example-scala-rust
[INFO] finished tweaking git repo https://github.com/jw3/example-scala-rust
[INFO] tweaked toml for git repo https://github.com/jw3/example-scala-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jw3/example-scala-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 31d12c8f9e0983934be48e4f08ba61a9978485f1bbe223a17173821a59b4d4e6
[INFO] running `Command { std: "docker" "start" "-a" "31d12c8f9e0983934be48e4f08ba61a9978485f1bbe223a17173821a59b4d4e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31d12c8f9e0983934be48e4f08ba61a9978485f1bbe223a17173821a59b4d4e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d12c8f9e0983934be48e4f08ba61a9978485f1bbe223a17173821a59b4d4e6", kill_on_drop: false }`
[INFO] [stdout] 31d12c8f9e0983934be48e4f08ba61a9978485f1bbe223a17173821a59b4d4e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 0eb1a91080b101d71dfd2fb456e0f61a4905bc20910a8d99c625bc0c932d710e
[INFO] running `Command { std: "docker" "start" "-a" "0eb1a91080b101d71dfd2fb456e0f61a4905bc20910a8d99c625bc0c932d710e", kill_on_drop: false }`
[INFO] [stderr]    Compiling example-scala-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Receiver`, `Sender`
[INFO] [stdout]  --> src/main/rust/lib.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::mpsc::{Receiver, Sender};
[INFO] [stdout]   |                       ^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]  --> src/main/rust/lib.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                       ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main/rust/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn new(cb: BSink) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BSink`
[INFO] [stdout]   --> src/main/rust/lib.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | type BSink = extern "C" fn(i64);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main/rust/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 tx.send(i);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "0eb1a91080b101d71dfd2fb456e0f61a4905bc20910a8d99c625bc0c932d710e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb1a91080b101d71dfd2fb456e0f61a4905bc20910a8d99c625bc0c932d710e", kill_on_drop: false }`
[INFO] [stdout] 0eb1a91080b101d71dfd2fb456e0f61a4905bc20910a8d99c625bc0c932d710e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--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] 02399729f0716b2db9a08e0d0c5b1342df8774bec9a1111f83cd0cc512ff8bae
[INFO] running `Command { std: "docker" "start" "-a" "02399729f0716b2db9a08e0d0c5b1342df8774bec9a1111f83cd0cc512ff8bae", kill_on_drop: false }`
[INFO] [stderr]    Compiling example-scala-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Receiver`, `Sender`
[INFO] [stdout]  --> src/main/rust/lib.rs:4:23
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::mpsc::{Receiver, Sender};
[INFO] [stdout]   |                       ^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]  --> src/main/rust/lib.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                       ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main/rust/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn new(cb: BSink) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BSink`
[INFO] [stdout]   --> src/main/rust/lib.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | type BSink = extern "C" fn(i64);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main/rust/lib.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 tx.send(i);
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "02399729f0716b2db9a08e0d0c5b1342df8774bec9a1111f83cd0cc512ff8bae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02399729f0716b2db9a08e0d0c5b1342df8774bec9a1111f83cd0cc512ff8bae", kill_on_drop: false }`
[INFO] [stdout] 02399729f0716b2db9a08e0d0c5b1342df8774bec9a1111f83cd0cc512ff8bae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca2211f77e6117ff1cd7c84c1aa7a77ce8e3762a3a1e1664d7f0750d38872efd
[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" "ca2211f77e6117ff1cd7c84c1aa7a77ce8e3762a3a1e1664d7f0750d38872efd", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Receiver`, `Sender`
[INFO] [stderr]  --> src/main/rust/lib.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::sync::mpsc::{Receiver, Sender};
[INFO] [stderr]   |                       ^^^^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]  --> src/main/rust/lib.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stderr]   |                       ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/main/rust/lib.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn new(cb: BSink) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `BSink`
[INFO] [stderr]   --> src/main/rust/lib.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | type BSink = extern "C" fn(i64);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main/rust/lib.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 tx.send(i);
[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: `example-scala-rust` (lib test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scalarust-69b45fdc9171753f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ca2211f77e6117ff1cd7c84c1aa7a77ce8e3762a3a1e1664d7f0750d38872efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca2211f77e6117ff1cd7c84c1aa7a77ce8e3762a3a1e1664d7f0750d38872efd", kill_on_drop: false }`
[INFO] [stdout] ca2211f77e6117ff1cd7c84c1aa7a77ce8e3762a3a1e1664d7f0750d38872efd