[INFO] cloning repository https://github.com/cmltaWt0/rust_test_hello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmltaWt0/rust_test_hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcmltaWt0%2Frust_test_hello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcmltaWt0%2Frust_test_hello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff001529cd65bcb26c040d57f1697b51fd3da6a5
[INFO] testing cmltaWt0/rust_test_hello against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcmltaWt0%2Frust_test_hello" "/workspace/builds/worker-101/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-101/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cmltaWt0/rust_test_hello on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cmltaWt0/rust_test_hello
[INFO] finished tweaking git repo https://github.com/cmltaWt0/rust_test_hello
[INFO] tweaked toml for git repo https://github.com/cmltaWt0/rust_test_hello written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate git repo https://github.com/cmltaWt0/rust_test_hello already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a630b08e7d3fac31ce611f1a8966bb31230b815575b381c457705c437faa64e
[INFO] running `Command { std: "docker" "start" "-a" "7a630b08e7d3fac31ce611f1a8966bb31230b815575b381c457705c437faa64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a630b08e7d3fac31ce611f1a8966bb31230b815575b381c457705c437faa64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a630b08e7d3fac31ce611f1a8966bb31230b815575b381c457705c437faa64e", kill_on_drop: false }`
[INFO] [stdout] 7a630b08e7d3fac31ce611f1a8966bb31230b815575b381c457705c437faa64e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddef46a3ac0b6fff1a25d44f9f56d111738221836c9c7c4563d09cf04e8635f5
[INFO] running `Command { std: "docker" "start" "-a" "ddef46a3ac0b6fff1a25d44f9f56d111738221836c9c7c4563d09cf04e8635f5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `arg` in this scope
[INFO] [stdout]    --> src/main.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 |         if let Some(c) = arg.chars().next() {
[INFO] [stdout]     |                          ^^^ help: a function with a similar name exists: `args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:134:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |             match name {
[INFO] [stdout]     |                   ---- this expression has type `String`
[INFO] [stdout] 134 |                 'i' | 'I' => println!("Hello {}", name),
[INFO] [stdout]     |                 ^^^ expected struct `String`, found `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:134:23
[INFO] [stdout]     |
[INFO] [stdout] 133 |             match name {
[INFO] [stdout]     |                   ---- this expression has type `String`
[INFO] [stdout] 134 |                 'i' | 'I' => println!("Hello {}", name),
[INFO] [stdout]     |                       ^^^ expected struct `String`, found `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ddef46a3ac0b6fff1a25d44f9f56d111738221836c9c7c4563d09cf04e8635f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddef46a3ac0b6fff1a25d44f9f56d111738221836c9c7c4563d09cf04e8635f5", kill_on_drop: false }`
[INFO] [stdout] ddef46a3ac0b6fff1a25d44f9f56d111738221836c9c7c4563d09cf04e8635f5