[INFO] cloning repository https://github.com/alexchiri/dragon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexchiri/dragon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexchiri%2Fdragon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexchiri%2Fdragon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0430f89b7099f69344da09d9ebcece56d0263bc2
[INFO] checking alexchiri/dragon against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexchiri%2Fdragon" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alexchiri/dragon
[INFO] finished tweaking git repo https://github.com/alexchiri/dragon
[INFO] tweaked toml for git repo https://github.com/alexchiri/dragon written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alexchiri/dragon on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alexchiri/dragon 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93a4295c3e6f8a70a2ca390d4ac94f4326686d1226d73e14fe141236e4a9ba60
[INFO] running `Command { std: "docker" "start" "-a" "93a4295c3e6f8a70a2ca390d4ac94f4326686d1226d73e14fe141236e4a9ba60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93a4295c3e6f8a70a2ca390d4ac94f4326686d1226d73e14fe141236e4a9ba60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a4295c3e6f8a70a2ca390d4ac94f4326686d1226d73e14fe141236e4a9ba60", kill_on_drop: false }`
[INFO] [stdout] 93a4295c3e6f8a70a2ca390d4ac94f4326686d1226d73e14fe141236e4a9ba60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c64fe042391ee93929e937fec60160fcc45f999bb23f8edab02437712b8842a
[INFO] running `Command { std: "docker" "start" "-a" "6c64fe042391ee93929e937fec60160fcc45f999bb23f8edab02437712b8842a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking json_comments v0.2.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking clap-verbosity-flag v0.3.1
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking dragon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     /// Which WSL VM would you like to change? Provide its name as configured in .dockerwsl.
[INFO] [stdout] 52 | |     /// Optional, if not provided, all WSLs are gonna be affected. 
[INFO] [stdout] 53 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 54 | |     wsl: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     /// Which WSL VM would you like to change? Provide its name as configured in .dockerwsl.
[INFO] [stdout] 62 | |     /// Optional, if not provided, all WSLs are gonna be affected. 
[INFO] [stdout] 63 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 64 | |     wsl: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | /     /// Image URL, can be given as registry/repository:tag, or registry/repository or just repository[:tag] if using image from Docker Hub
[INFO] [stdout] 76 | |     #[structopt(short = "i", long)]
[INFO] [stdout] 77 | |     image: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | /     /// The name of the WSL that is used in the VM name and in the .dockerwsl config.
[INFO] [stdout] 79 | |     /// Optional, if not provided, repository name will be used
[INFO] [stdout] 80 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 81 | |     name: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | /     /// Username to be used for private registry. Optional
[INFO] [stdout] 87 | |     #[structopt(short = "u", long)]
[INFO] [stdout] 88 | |     username: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     /// Password to be used for private registry. Optional
[INFO] [stdout] 90 | |     #[structopt(short = "p", long)]
[INFO] [stdout] 91 | |     password: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     /// Tenant to be used for ACR registries only. Optional
[INFO] [stdout] 93 | |     #[structopt(short = "t", long)]
[INFO] [stdout] 94 | |     tenant: Option<String>
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | /     /// Which WSL VM would you like to change? Provide its name as configured in .dockerwsl.
[INFO] [stdout] 108 | |     /// Optional, if not provided, all WSLs are gonna be affected. 
[INFO] [stdout] 109 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 110 | |     wsl: Option<String>,
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 | /     /// Which WSL VM would you like to run? Provide its name as configured in .dockerwsl. Mandatory.
[INFO] [stdout] 124 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 125 | |     wsl: String,
[INFO] [stdout]     | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dragon` (bin "dragon" test) due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     /// Which WSL VM would you like to change? Provide its name as configured in .dockerwsl.
[INFO] [stdout] 52 | |     /// Optional, if not provided, all WSLs are gonna be affected. 
[INFO] [stdout] 53 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 54 | |     wsl: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     /// Which WSL VM would you like to change? Provide its name as configured in .dockerwsl.
[INFO] [stdout] 62 | |     /// Optional, if not provided, all WSLs are gonna be affected. 
[INFO] [stdout] 63 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 64 | |     wsl: Option<String>,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | /     /// Image URL, can be given as registry/repository:tag, or registry/repository or just repository[:tag] if using image from Docker Hub
[INFO] [stdout] 76 | |     #[structopt(short = "i", long)]
[INFO] [stdout] 77 | |     image: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | /     /// The name of the WSL that is used in the VM name and in the .dockerwsl config.
[INFO] [stdout] 79 | |     /// Optional, if not provided, repository name will be used
[INFO] [stdout] 80 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 81 | |     name: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | /     /// Username to be used for private registry. Optional
[INFO] [stdout] 87 | |     #[structopt(short = "u", long)]
[INFO] [stdout] 88 | |     username: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     /// Password to be used for private registry. Optional
[INFO] [stdout] 90 | |     #[structopt(short = "p", long)]
[INFO] [stdout] 91 | |     password: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     /// Tenant to be used for ACR registries only. Optional
[INFO] [stdout] 93 | |     #[structopt(short = "t", long)]
[INFO] [stdout] 94 | |     tenant: Option<String>
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | /     /// Which WSL VM would you like to change? Provide its name as configured in .dockerwsl.
[INFO] [stdout] 108 | |     /// Optional, if not provided, all WSLs are gonna be affected. 
[INFO] [stdout] 109 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 110 | |     wsl: Option<String>,
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 | /     /// Which WSL VM would you like to run? Provide its name as configured in .dockerwsl. Mandatory.
[INFO] [stdout] 124 | |     #[structopt(short = "w", long)]
[INFO] [stdout] 125 | |     wsl: String,
[INFO] [stdout]     | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dragon` (bin "dragon") due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "6c64fe042391ee93929e937fec60160fcc45f999bb23f8edab02437712b8842a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c64fe042391ee93929e937fec60160fcc45f999bb23f8edab02437712b8842a", kill_on_drop: false }`
[INFO] [stdout] 6c64fe042391ee93929e937fec60160fcc45f999bb23f8edab02437712b8842a
