[INFO] cloning repository https://github.com/iotemplates/rust-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iotemplates/rust-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiotemplates%2Frust-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiotemplates%2Frust-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 194b2ec58e99348e685bc95cebad910d22b0c55c
[INFO] checking iotemplates/rust-cli 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%2Fiotemplates%2Frust-cli" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iotemplates/rust-cli
[INFO] finished tweaking git repo https://github.com/iotemplates/rust-cli
[INFO] tweaked toml for git repo https://github.com/iotemplates/rust-cli written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iotemplates/rust-cli 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/iotemplates/rust-cli 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 27fa8a2aba4d028a99e502a4d2281c6df373538a8c4023dbcf3a109d99079d83
[INFO] running `Command { std: "docker" "start" "-a" "27fa8a2aba4d028a99e502a4d2281c6df373538a8c4023dbcf3a109d99079d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27fa8a2aba4d028a99e502a4d2281c6df373538a8c4023dbcf3a109d99079d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27fa8a2aba4d028a99e502a4d2281c6df373538a8c4023dbcf3a109d99079d83", kill_on_drop: false }`
[INFO] [stdout] 27fa8a2aba4d028a99e502a4d2281c6df373538a8c4023dbcf3a109d99079d83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 81f5483b2ce4a9cb71804e5de2ebf3aef9d2090b6ffd50c8f23c724d3146c442
[INFO] running `Command { std: "docker" "start" "-a" "81f5483b2ce4a9cb71804e5de2ebf3aef9d2090b6ffd50c8f23c724d3146c442", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking rust-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:21:53
[INFO] [stdout]    |
[INFO] [stdout] 21 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 22 | |         match s {
[INFO] [stdout] 23 | |             "auto" => Ok(Color::Auto),
[INFO] [stdout] 24 | |             "always" => Ok(Color::Always),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[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<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | /         match s {
[INFO] [stdout] 23 | |             "auto" => Ok(Color::Auto),
[INFO] [stdout] 24 | |             "always" => Ok(Color::Always),
[INFO] [stdout] 25 | |             "never" => Ok(Color::Never),
[INFO] [stdout] 26 | |              _ =>  Ok(Color::Always)
[INFO] [stdout] 27 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |             "auto" => Ok(Color::Auto),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |             "always" => Ok(Color::Always),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |             "never" => Ok(Color::Never),
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |              _ =>  Ok(Color::Always)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[structopt(short = "h", long = "hide")]
[INFO] [stdout] 42 | |     hide: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:44:67
[INFO] [stdout]    |
[INFO] [stdout] 44 |     #[structopt(short = "c", long = "color", parse(try_from_str = std::str::FromStr::from_str), default_value="always")]
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     path: String
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-cli` (bin "rust-cli") 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<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:21:53
[INFO] [stdout]    |
[INFO] [stdout] 21 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 22 | |         match s {
[INFO] [stdout] 23 | |             "auto" => Ok(Color::Auto),
[INFO] [stdout] 24 | |             "always" => Ok(Color::Always),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     }
[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<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | /         match s {
[INFO] [stdout] 23 | |             "auto" => Ok(Color::Auto),
[INFO] [stdout] 24 | |             "always" => Ok(Color::Always),
[INFO] [stdout] 25 | |             "never" => Ok(Color::Never),
[INFO] [stdout] 26 | |              _ =>  Ok(Color::Always)
[INFO] [stdout] 27 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 |             "auto" => Ok(Color::Auto),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:24:25
[INFO] [stdout]    |
[INFO] [stdout] 24 |             "always" => Ok(Color::Always),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |             "never" => Ok(Color::Never),
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |              _ =>  Ok(Color::Always)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[structopt(short = "h", long = "hide")]
[INFO] [stdout] 42 | |     hide: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Color, Infallible>
[INFO] [stdout]   --> src/main.rs:44:67
[INFO] [stdout]    |
[INFO] [stdout] 44 |     #[structopt(short = "c", long = "color", parse(try_from_str = std::str::FromStr::from_str), default_value="always")]
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     path: String
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-cli` (bin "rust-cli" test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "81f5483b2ce4a9cb71804e5de2ebf3aef9d2090b6ffd50c8f23c724d3146c442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f5483b2ce4a9cb71804e5de2ebf3aef9d2090b6ffd50c8f23c724d3146c442", kill_on_drop: false }`
[INFO] [stdout] 81f5483b2ce4a9cb71804e5de2ebf3aef9d2090b6ffd50c8f23c724d3146c442
