[INFO] cloning repository https://github.com/juneym/rust-lang-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juneym/rust-lang-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuneym%2Frust-lang-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuneym%2Frust-lang-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 367fb83c2c265d0b9b98d377081da64cd24e8615
[INFO] testing juneym/rust-lang-tutorial against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuneym%2Frust-lang-tutorial" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/juneym/rust-lang-tutorial
[INFO] finished tweaking git repo https://github.com/juneym/rust-lang-tutorial
[INFO] tweaked toml for git repo https://github.com/juneym/rust-lang-tutorial written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/juneym/rust-lang-tutorial on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/juneym/rust-lang-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ec568566ed3fbeeab7021dcb6c5916af0421d4b8e019f43ae8ffac1c6bcfadf
[INFO] running `Command { std: "docker" "start" "-a" "1ec568566ed3fbeeab7021dcb6c5916af0421d4b8e019f43ae8ffac1c6bcfadf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ec568566ed3fbeeab7021dcb6c5916af0421d4b8e019f43ae8ffac1c6bcfadf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec568566ed3fbeeab7021dcb6c5916af0421d4b8e019f43ae8ffac1c6bcfadf", kill_on_drop: false }`
[INFO] [stdout] 1ec568566ed3fbeeab7021dcb6c5916af0421d4b8e019f43ae8ffac1c6bcfadf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4706313d128f67df86ad5225e40d8d7ffa4ebedd5fc0c06714cb6f75f2f12265
[INFO] running `Command { std: "docker" "start" "-a" "4706313d128f67df86ad5225e40d8d7ffa4ebedd5fc0c06714cb6f75f2f12265", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-lang-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/structs.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut c = Color {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "4706313d128f67df86ad5225e40d8d7ffa4ebedd5fc0c06714cb6f75f2f12265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4706313d128f67df86ad5225e40d8d7ffa4ebedd5fc0c06714cb6f75f2f12265", kill_on_drop: false }`
[INFO] [stdout] 4706313d128f67df86ad5225e40d8d7ffa4ebedd5fc0c06714cb6f75f2f12265
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1be4de8d011c51a207e462ec0cd1cba6aaa78f7f498e515260f30c12c4d03ec5
[INFO] running `Command { std: "docker" "start" "-a" "1be4de8d011c51a207e462ec0cd1cba6aaa78f7f498e515260f30c12c4d03ec5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-lang-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/structs.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut c = Color {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "1be4de8d011c51a207e462ec0cd1cba6aaa78f7f498e515260f30c12c4d03ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be4de8d011c51a207e462ec0cd1cba6aaa78f7f498e515260f30c12c4d03ec5", kill_on_drop: false }`
[INFO] [stdout] 1be4de8d011c51a207e462ec0cd1cba6aaa78f7f498e515260f30c12c4d03ec5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 447b353e43a2cad6e100e17ffc6f7c4dc8903c7b600ea0d575d3ce36c9858052
[INFO] running `Command { std: "docker" "start" "-a" "447b353e43a2cad6e100e17ffc6f7c4dc8903c7b600ea0d575d3ce36c9858052", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/structs.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut c = Color {
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-lang-tutorial` (bin "rust-lang-tutorial" test) generated 1 warning (run `cargo fix --bin "rust-lang-tutorial" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_lang_tutorial-7fc92448135ac10d)
[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" "447b353e43a2cad6e100e17ffc6f7c4dc8903c7b600ea0d575d3ce36c9858052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447b353e43a2cad6e100e17ffc6f7c4dc8903c7b600ea0d575d3ce36c9858052", kill_on_drop: false }`
[INFO] [stdout] 447b353e43a2cad6e100e17ffc6f7c4dc8903c7b600ea0d575d3ce36c9858052
