[INFO] cloning repository https://github.com/tetsuzawa/simple-shell-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tetsuzawa/simple-shell-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuzawa%2Fsimple-shell-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuzawa%2Fsimple-shell-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b05bc1bdeb07e324c99875fbdaa82c7bf52a1c2
[INFO] testing tetsuzawa/simple-shell-in-rust 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%2Ftetsuzawa%2Fsimple-shell-in-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tetsuzawa/simple-shell-in-rust 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/tetsuzawa/simple-shell-in-rust
[INFO] finished tweaking git repo https://github.com/tetsuzawa/simple-shell-in-rust
[INFO] tweaked toml for git repo https://github.com/tetsuzawa/simple-shell-in-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/tetsuzawa/simple-shell-in-rust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 7e37f0072975ba0f6784c153dd85029947dd6df223978e53136eb5160ff2ecdb
[INFO] running `Command { std: "docker" "start" "-a" "7e37f0072975ba0f6784c153dd85029947dd6df223978e53136eb5160ff2ecdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e37f0072975ba0f6784c153dd85029947dd6df223978e53136eb5160ff2ecdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e37f0072975ba0f6784c153dd85029947dd6df223978e53136eb5160ff2ecdb", kill_on_drop: false }`
[INFO] [stdout] 7e37f0072975ba0f6784c153dd85029947dd6df223978e53136eb5160ff2ecdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 96332bccfa990ce6e6961ac02c731d6bddfc7e5390f5b13256d55e5e8bc24bcf
[INFO] running `Command { std: "docker" "start" "-a" "96332bccfa990ce6e6961ac02c731d6bddfc7e5390f5b13256d55e5e8bc24bcf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling simple-shell-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stdout`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{stdin, stdout, Stdout, Write},
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         stdout().flush();
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |             final_command.wait();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.18s
[INFO] running `Command { std: "docker" "inspect" "96332bccfa990ce6e6961ac02c731d6bddfc7e5390f5b13256d55e5e8bc24bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96332bccfa990ce6e6961ac02c731d6bddfc7e5390f5b13256d55e5e8bc24bcf", kill_on_drop: false }`
[INFO] [stdout] 96332bccfa990ce6e6961ac02c731d6bddfc7e5390f5b13256d55e5e8bc24bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 8a2dc7d7ad41ff7d09dc993993af298e5d6f529069664c673fd2daaf5e5776a4
[INFO] running `Command { std: "docker" "start" "-a" "8a2dc7d7ad41ff7d09dc993993af298e5d6f529069664c673fd2daaf5e5776a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling simple-shell-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stdout`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{stdin, stdout, Stdout, Write},
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         stdout().flush();
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |             final_command.wait();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.08s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_shell_in_rust-558f939144a27234)
[INFO] running `Command { std: "docker" "inspect" "8a2dc7d7ad41ff7d09dc993993af298e5d6f529069664c673fd2daaf5e5776a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2dc7d7ad41ff7d09dc993993af298e5d6f529069664c673fd2daaf5e5776a4", kill_on_drop: false }`
[INFO] [stdout] 8a2dc7d7ad41ff7d09dc993993af298e5d6f529069664c673fd2daaf5e5776a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 735c863858badae34ed7b7bd117fb762e40bcf4c36945e555223bf98c134764e
[INFO] running `Command { std: "docker" "start" "-a" "735c863858badae34ed7b7bd117fb762e40bcf4c36945e555223bf98c134764e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `Stdout`
[INFO] [stderr]  --> src/main.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 |     io::{stdin, stdout, Stdout, Write},
[INFO] [stderr]   |                         ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         stdout().flush();
[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: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |             final_command.wait();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-shell-in-rust` (bin "simple-shell-in-rust" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3m 00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_shell_in_rust-558f939144a27234)
[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" "735c863858badae34ed7b7bd117fb762e40bcf4c36945e555223bf98c134764e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735c863858badae34ed7b7bd117fb762e40bcf4c36945e555223bf98c134764e", kill_on_drop: false }`
[INFO] [stdout] 735c863858badae34ed7b7bd117fb762e40bcf4c36945e555223bf98c134764e