[INFO] cloning repository https://github.com/mithril1992/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mithril1992/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmithril1992%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmithril1992%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98c8210092b3438bf51a7f1be0be1182dae00bef
[INFO] testing mithril1992/rust_practice against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmithril1992%2Frust_practice" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mithril1992/rust_practice on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mithril1992/rust_practice
[INFO] finished tweaking git repo https://github.com/mithril1992/rust_practice
[INFO] tweaked toml for git repo https://github.com/mithril1992/rust_practice written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/mithril1992/rust_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4994391d60f7a4e3e97e47b73a2172fe5c2b767a4f11a0a469902283ff438c06
[INFO] running `Command { std: "docker" "start" "-a" "4994391d60f7a4e3e97e47b73a2172fe5c2b767a4f11a0a469902283ff438c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4994391d60f7a4e3e97e47b73a2172fe5c2b767a4f11a0a469902283ff438c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4994391d60f7a4e3e97e47b73a2172fe5c2b767a4f11a0a469902283ff438c06", kill_on_drop: false }`
[INFO] [stdout] 4994391d60f7a4e3e97e47b73a2172fe5c2b767a4f11a0a469902283ff438c06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc014534dec1600905f689a4a506ac1095e592812d3c1e0d31ea929bbc1907a7
[INFO] running `Command { std: "docker" "start" "-a" "bc014534dec1600905f689a4a506ac1095e592812d3c1e0d31ea929bbc1907a7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stdout] warning: unused variable: `program`
[INFO] [stdout]  --> src/bin/fizzbuzz.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let program = args[0].clone();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/fizzbuzz.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Err(f) => panic!(f.to_string())
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Err(f) => panic!("{}", f.to_string())
[INFO] [stdout]    |                          +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `Command { std: "docker" "inspect" "bc014534dec1600905f689a4a506ac1095e592812d3c1e0d31ea929bbc1907a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc014534dec1600905f689a4a506ac1095e592812d3c1e0d31ea929bbc1907a7", kill_on_drop: false }`
[INFO] [stdout] bc014534dec1600905f689a4a506ac1095e592812d3c1e0d31ea929bbc1907a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcfeb502b1a89d0eb12c529aa52b1ecf31307d02aac0a1ffeb27c222c6990064
[INFO] running `Command { std: "docker" "start" "-a" "dcfeb502b1a89d0eb12c529aa52b1ecf31307d02aac0a1ffeb27c222c6990064", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `program`
[INFO] [stdout]  --> src/bin/fizzbuzz.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let program = args[0].clone();
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/fizzbuzz.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Err(f) => panic!(f.to_string())
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 15 |         Err(f) => panic!("{}", f.to_string())
[INFO] [stdout]    |                          +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_sample-5898c6b6509851b3)
[INFO] [stderr]   Executable unittests src/bin/async_queue.rs (/opt/rustwide/target/debug/deps/async_queue-3a362df346ad1696)
[INFO] [stderr]   Executable unittests src/bin/fizzbuzz.rs (/opt/rustwide/target/debug/deps/fizzbuzz-a6ee9f6b773f90f0)
[INFO] [stderr]   Executable unittests src/bin/hello.rs (/opt/rustwide/target/debug/deps/hello-00b353a882f5f2e8)
[INFO] [stderr]   Executable unittests src/bin/hello_c.rs (/opt/rustwide/target/debug/deps/hello_c-918e53e6895ecad2)
[INFO] running `Command { std: "docker" "inspect" "dcfeb502b1a89d0eb12c529aa52b1ecf31307d02aac0a1ffeb27c222c6990064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcfeb502b1a89d0eb12c529aa52b1ecf31307d02aac0a1ffeb27c222c6990064", kill_on_drop: false }`
[INFO] [stdout] dcfeb502b1a89d0eb12c529aa52b1ecf31307d02aac0a1ffeb27c222c6990064
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ac4871f1fd759794e6f721ea815aae86043a64ae15fe6984bce07e6901c083d2
[INFO] running `Command { std: "docker" "start" "-a" "ac4871f1fd759794e6f721ea815aae86043a64ae15fe6984bce07e6901c083d2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `program`
[INFO] [stderr]  --> src/bin/fizzbuzz.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let program = args[0].clone();
[INFO] [stderr]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/bin/fizzbuzz.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |         Err(f) => panic!(f.to_string())
[INFO] [stderr]    |                          ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 15 |         Err(f) => panic!("{}", f.to_string())
[INFO] [stderr]    |                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_sample` (bin "fizzbuzz" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_sample-5898c6b6509851b3)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/async_queue.rs (/opt/rustwide/target/debug/deps/async_queue-3a362df346ad1696)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/fizzbuzz.rs (/opt/rustwide/target/debug/deps/fizzbuzz-a6ee9f6b773f90f0)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/hello.rs (/opt/rustwide/target/debug/deps/hello-00b353a882f5f2e8)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/hello_c.rs (/opt/rustwide/target/debug/deps/hello_c-918e53e6895ecad2)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_sample
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ac4871f1fd759794e6f721ea815aae86043a64ae15fe6984bce07e6901c083d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4871f1fd759794e6f721ea815aae86043a64ae15fe6984bce07e6901c083d2", kill_on_drop: false }`
[INFO] [stdout] ac4871f1fd759794e6f721ea815aae86043a64ae15fe6984bce07e6901c083d2