[INFO] fetching crate mdsh 0.7.0...
[INFO] checking mdsh-0.7.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mdsh 0.7.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mdsh 0.7.0
[INFO] finished tweaking crates.io crate mdsh 0.7.0
[INFO] tweaked toml for crates.io crate mdsh 0.7.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdsh 0.7.0 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 crates.io crate mdsh 0.7.0 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 12d037908c0c1d5470d1ddc4968373576c9b103baa4f23bb177259930056a495
[INFO] running `Command { std: "docker" "start" "-a" "12d037908c0c1d5470d1ddc4968373576c9b103baa4f23bb177259930056a495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12d037908c0c1d5470d1ddc4968373576c9b103baa4f23bb177259930056a495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12d037908c0c1d5470d1ddc4968373576c9b103baa4f23bb177259930056a495", kill_on_drop: false }`
[INFO] [stdout] 12d037908c0c1d5470d1ddc4968373576c9b103baa4f23bb177259930056a495
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2d0ebbd125a8d42da123616e7c0b2666b04d5fe0badf1ddaf692eea5d5f2a0d5
[INFO] running `Command { std: "docker" "start" "-a" "2d0ebbd125a8d42da123616e7c0b2666b04d5fe0badf1ddaf692eea5d5f2a0d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking mdsh v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// Path to the markdown files. `-` for stdin.
[INFO] [stdout] 14 | |     #[structopt(
[INFO] [stdout] 15 | |         short = "i",
[INFO] [stdout] 16 | |         long = "inputs",
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     )]
[INFO] [stdout] 20 | |     pub inputs: Vec<FileArg>,
[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<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// Path to the output file, `-` for stdout [defaults to updating the input file in-place].
[INFO] [stdout] 23 | |     #[structopt(short = "o", long = "output")]
[INFO] [stdout] 24 | |     pub output: Option<FileArg>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:69:53
[INFO] [stdout]    |
[INFO] [stdout] 69 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 70 | |         match s {
[INFO] [stdout] 71 | |             "-" => Ok(FileArg::StdHandle),
[INFO] [stdout] 72 | |             p => Ok(FileArg::File(PathBuf::from(p))),
[INFO] [stdout] 73 | |         }
[INFO] [stdout] 74 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | /         match s {
[INFO] [stdout] 71 | |             "-" => Ok(FileArg::StdHandle),
[INFO] [stdout] 72 | |             p => Ok(FileArg::File(PathBuf::from(p))),
[INFO] [stdout] 73 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |             "-" => Ok(FileArg::StdHandle),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:72:18
[INFO] [stdout]    |
[INFO] [stdout] 72 |             p => Ok(FileArg::File(PathBuf::from(p))),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdsh` (lib test) due to 6 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<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// Path to the markdown files. `-` for stdin.
[INFO] [stdout] 14 | |     #[structopt(
[INFO] [stdout] 15 | |         short = "i",
[INFO] [stdout] 16 | |         long = "inputs",
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     )]
[INFO] [stdout] 20 | |     pub inputs: Vec<FileArg>,
[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<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// Path to the output file, `-` for stdout [defaults to updating the input file in-place].
[INFO] [stdout] 23 | |     #[structopt(short = "o", long = "output")]
[INFO] [stdout] 24 | |     pub output: Option<FileArg>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:69:53
[INFO] [stdout]    |
[INFO] [stdout] 69 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 70 | |         match s {
[INFO] [stdout] 71 | |             "-" => Ok(FileArg::StdHandle),
[INFO] [stdout] 72 | |             p => Ok(FileArg::File(PathBuf::from(p))),
[INFO] [stdout] 73 | |         }
[INFO] [stdout] 74 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | /         match s {
[INFO] [stdout] 71 | |             "-" => Ok(FileArg::StdHandle),
[INFO] [stdout] 72 | |             p => Ok(FileArg::File(PathBuf::from(p))),
[INFO] [stdout] 73 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |             "-" => Ok(FileArg::StdHandle),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<FileArg, Infallible>
[INFO] [stdout]   --> src/cli.rs:72:18
[INFO] [stdout]    |
[INFO] [stdout] 72 |             p => Ok(FileArg::File(PathBuf::from(p))),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdsh` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "2d0ebbd125a8d42da123616e7c0b2666b04d5fe0badf1ddaf692eea5d5f2a0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d0ebbd125a8d42da123616e7c0b2666b04d5fe0badf1ddaf692eea5d5f2a0d5", kill_on_drop: false }`
[INFO] [stdout] 2d0ebbd125a8d42da123616e7c0b2666b04d5fe0badf1ddaf692eea5d5f2a0d5
