[INFO] cloning repository https://github.com/tgandrews/synacor-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tgandrews/synacor-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftgandrews%2Fsynacor-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftgandrews%2Fsynacor-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a38ad4f4393be207db967802b61e69ae2fdf6c8
[INFO] testing tgandrews/synacor-rs against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftgandrews%2Fsynacor-rs" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tgandrews/synacor-rs on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tgandrews/synacor-rs
[INFO] finished tweaking git repo https://github.com/tgandrews/synacor-rs
[INFO] tweaked toml for git repo https://github.com/tgandrews/synacor-rs written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/tgandrews/synacor-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed9980c9b8fd53d77a63d31ff9a4147e0850c2abcb79f59a23fbec0079323deb
[INFO] running `Command { std: "docker" "start" "-a" "ed9980c9b8fd53d77a63d31ff9a4147e0850c2abcb79f59a23fbec0079323deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed9980c9b8fd53d77a63d31ff9a4147e0850c2abcb79f59a23fbec0079323deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9980c9b8fd53d77a63d31ff9a4147e0850c2abcb79f59a23fbec0079323deb", kill_on_drop: false }`
[INFO] [stdout] ed9980c9b8fd53d77a63d31ff9a4147e0850c2abcb79f59a23fbec0079323deb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e08c2e76dc2b42713bf6810d8b36d0e893ee142af61aa69cdda2084870cacb4c
[INFO] running `Command { std: "docker" "start" "-a" "e08c2e76dc2b42713bf6810d8b36d0e893ee142af61aa69cdda2084870cacb4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling synacor-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 |         Err(err) => panic!("couldn't open {}: {}", path.display(), err.description()),
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 |                 stdin.lock().read_line(&mut line);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "e08c2e76dc2b42713bf6810d8b36d0e893ee142af61aa69cdda2084870cacb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e08c2e76dc2b42713bf6810d8b36d0e893ee142af61aa69cdda2084870cacb4c", kill_on_drop: false }`
[INFO] [stdout] e08c2e76dc2b42713bf6810d8b36d0e893ee142af61aa69cdda2084870cacb4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 765bbe331965b7b38952c0287aaa870d48ef5e643697499102143ca18da9e32f
[INFO] running `Command { std: "docker" "start" "-a" "765bbe331965b7b38952c0287aaa870d48ef5e643697499102143ca18da9e32f", kill_on_drop: false }`
[INFO] [stderr]    Compiling synacor-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 |         Err(err) => panic!("couldn't open {}: {}", path.display(), err.description()),
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:221:17
[INFO] [stdout]     |
[INFO] [stdout] 221 |                 stdin.lock().read_line(&mut line);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "765bbe331965b7b38952c0287aaa870d48ef5e643697499102143ca18da9e32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765bbe331965b7b38952c0287aaa870d48ef5e643697499102143ca18da9e32f", kill_on_drop: false }`
[INFO] [stdout] 765bbe331965b7b38952c0287aaa870d48ef5e643697499102143ca18da9e32f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 166705548b03d4b6f399f9d9f52e1d02f09328a9924e9e583aa32e5fa55be2c4
[INFO] running `Command { std: "docker" "start" "-a" "166705548b03d4b6f399f9d9f52e1d02f09328a9924e9e583aa32e5fa55be2c4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:25:72
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 25 |         Err(err) => panic!("couldn't open {}: {}", path.display(), err.description()),
[INFO] [stdout] 
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:221:17
[INFO] [stderr]     |
[INFO] [stderr] 221 |                 stdin.lock().read_line(&mut line);
[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: `synacor-rs` (bin "synacor-rs" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/synacor_rs-f7c76cd7abfe9574)
[INFO] running `Command { std: "docker" "inspect" "166705548b03d4b6f399f9d9f52e1d02f09328a9924e9e583aa32e5fa55be2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "166705548b03d4b6f399f9d9f52e1d02f09328a9924e9e583aa32e5fa55be2c4", kill_on_drop: false }`
[INFO] [stdout] 166705548b03d4b6f399f9d9f52e1d02f09328a9924e9e583aa32e5fa55be2c4