[INFO] cloning repository https://github.com/NoNAMe-0x16/Rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NoNAMe-0x16/Rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoNAMe-0x16%2FRust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoNAMe-0x16%2FRust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 049c30a5c66844f9cc19030b8c02ec1bc296df40
[INFO] testing NoNAMe-0x16/Rust_study against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoNAMe-0x16%2FRust_study" "/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/NoNAMe-0x16/Rust_study on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NoNAMe-0x16/Rust_study
[INFO] finished tweaking git repo https://github.com/NoNAMe-0x16/Rust_study
[INFO] tweaked toml for git repo https://github.com/NoNAMe-0x16/Rust_study written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/NoNAMe-0x16/Rust_study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d322fc58f0696d562052c6974ccc70042c4a05e447c5cc7fae15a2e4bcb5693
[INFO] running `Command { std: "docker" "start" "-a" "8d322fc58f0696d562052c6974ccc70042c4a05e447c5cc7fae15a2e4bcb5693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d322fc58f0696d562052c6974ccc70042c4a05e447c5cc7fae15a2e4bcb5693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d322fc58f0696d562052c6974ccc70042c4a05e447c5cc7fae15a2e4bcb5693", kill_on_drop: false }`
[INFO] [stdout] 8d322fc58f0696d562052c6974ccc70042c4a05e447c5cc7fae15a2e4bcb5693
[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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 369adb0e45cd5800e44c7921ceb973e821d77a9de344c1a7734c1dd758519d8a
[INFO] running `Command { std: "docker" "start" "-a" "369adb0e45cd5800e44c7921ceb973e821d77a9de344c1a7734c1dd758519d8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling practice_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut N = String::new();
[INFO] [stdout]   |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "369adb0e45cd5800e44c7921ceb973e821d77a9de344c1a7734c1dd758519d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "369adb0e45cd5800e44c7921ceb973e821d77a9de344c1a7734c1dd758519d8a", kill_on_drop: false }`
[INFO] [stdout] 369adb0e45cd5800e44c7921ceb973e821d77a9de344c1a7734c1dd758519d8a
[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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02786c2d74760cd26fe9d752750adb60c5b2ec1a2159b66c5416ee99cb495627
[INFO] running `Command { std: "docker" "start" "-a" "02786c2d74760cd26fe9d752750adb60c5b2ec1a2159b66c5416ee99cb495627", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling practice_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut N = String::new();
[INFO] [stdout]   |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "02786c2d74760cd26fe9d752750adb60c5b2ec1a2159b66c5416ee99cb495627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02786c2d74760cd26fe9d752750adb60c5b2ec1a2159b66c5416ee99cb495627", kill_on_drop: false }`
[INFO] [stdout] 02786c2d74760cd26fe9d752750adb60c5b2ec1a2159b66c5416ee99cb495627
[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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1ae1ca60f0b495674f717b99865314185ea84400960a05b4863e729e575c65f8
[INFO] running `Command { std: "docker" "start" "-a" "1ae1ca60f0b495674f717b99865314185ea84400960a05b4863e729e575c65f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]  --> src/main.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut N = String::new();
[INFO] [stderr]   |             ^ help: convert the identifier to snake case: `n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `practice_rust` (bin "practice_rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/practice_rust-6a9bfead3baf69a9)
[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" "1ae1ca60f0b495674f717b99865314185ea84400960a05b4863e729e575c65f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae1ca60f0b495674f717b99865314185ea84400960a05b4863e729e575c65f8", kill_on_drop: false }`
[INFO] [stdout] 1ae1ca60f0b495674f717b99865314185ea84400960a05b4863e729e575c65f8