[INFO] fetching crate md2src 1.1.0...
[INFO] checking md2src-1.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate md2src 1.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate md2src 1.1.0
[INFO] finished tweaking crates.io crate md2src 1.1.0
[INFO] tweaked toml for crates.io crate md2src 1.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate md2src 1.1.0 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 md2src 1.1.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b95101cdfe252759891ee4c5e507bf367a0a1499fcec08cb1784c3e61024701f
[INFO] running `Command { std: "docker" "start" "-a" "b95101cdfe252759891ee4c5e507bf367a0a1499fcec08cb1784c3e61024701f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b95101cdfe252759891ee4c5e507bf367a0a1499fcec08cb1784c3e61024701f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95101cdfe252759891ee4c5e507bf367a0a1499fcec08cb1784c3e61024701f", kill_on_drop: false }`
[INFO] [stdout] b95101cdfe252759891ee4c5e507bf367a0a1499fcec08cb1784c3e61024701f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 69a601faf2c8865bcde2e7d4ae93514ef9e69bdf45e48a15a034a92282ccf3e2
[INFO] running `Command { std: "docker" "start" "-a" "69a601faf2c8865bcde2e7d4ae93514ef9e69bdf45e48a15a034a92282ccf3e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking md2src v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | /     #[structopt(
[INFO] [stdout]  9 | |         name = "filename",
[INFO] [stdout] 10 | |         help = "Markdown file that contains the code snippets"
[INFO] [stdout] 11 | |     )]
[INFO] [stdout] 12 | |     pub file: 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<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[structopt(
[INFO] [stdout] 14 | |         name = "folder",
[INFO] [stdout] 15 | |         help = "Folder for the code snippets",
[INFO] [stdout] 16 | |         default_value = "."
[INFO] [stdout] 17 | |     )]
[INFO] [stdout] 18 | |     pub folder: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(
[INFO] [stdout] 20 | |         name = "string",
[INFO] [stdout] 21 | |         short = "i",
[INFO] [stdout] 22 | |         long = "ignore",
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     )]
[INFO] [stdout] 28 | |     pub ignore: Vec<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     #[structopt(
[INFO] [stdout] 30 | |         name = "prefix",
[INFO] [stdout] 31 | |         short = "p",
[INFO] [stdout] 32 | |         long = "prefix",
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     )]
[INFO] [stdout] 37 | |     pub prefix: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | /     #[structopt(
[INFO] [stdout]  9 | |         name = "filename",
[INFO] [stdout] 10 | |         help = "Markdown file that contains the code snippets"
[INFO] [stdout] 11 | |     )]
[INFO] [stdout] 12 | |     pub file: 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<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     #[structopt(
[INFO] [stdout] 39 | |         name = "extension",
[INFO] [stdout] 40 | |         short = "e",
[INFO] [stdout] 41 | |         long = "extension",
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |     )]
[INFO] [stdout] 46 | |     pub ext: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     #[structopt(
[INFO] [stdout] 48 | |         name = "language",
[INFO] [stdout] 49 | |         short = "l",
[INFO] [stdout] 50 | |         long = "language",
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     )]
[INFO] [stdout] 55 | |     pub lang: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[structopt(
[INFO] [stdout] 14 | |         name = "folder",
[INFO] [stdout] 15 | |         help = "Folder for the code snippets",
[INFO] [stdout] 16 | |         default_value = "."
[INFO] [stdout] 17 | |     )]
[INFO] [stdout] 18 | |     pub folder: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(
[INFO] [stdout] 20 | |         name = "string",
[INFO] [stdout] 21 | |         short = "i",
[INFO] [stdout] 22 | |         long = "ignore",
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     )]
[INFO] [stdout] 28 | |     pub ignore: Vec<String>,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     #[structopt(
[INFO] [stdout] 30 | |         name = "prefix",
[INFO] [stdout] 31 | |         short = "p",
[INFO] [stdout] 32 | |         long = "prefix",
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     )]
[INFO] [stdout] 37 | |     pub prefix: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     #[structopt(
[INFO] [stdout] 39 | |         name = "extension",
[INFO] [stdout] 40 | |         short = "e",
[INFO] [stdout] 41 | |         long = "extension",
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |     )]
[INFO] [stdout] 46 | |     pub ext: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     #[structopt(
[INFO] [stdout] 48 | |         name = "language",
[INFO] [stdout] 49 | |         short = "l",
[INFO] [stdout] 50 | |         long = "language",
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     )]
[INFO] [stdout] 55 | |     pub lang: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `md2src` (bin "md2src") due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `md2src` (bin "md2src" test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "69a601faf2c8865bcde2e7d4ae93514ef9e69bdf45e48a15a034a92282ccf3e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69a601faf2c8865bcde2e7d4ae93514ef9e69bdf45e48a15a034a92282ccf3e2", kill_on_drop: false }`
[INFO] [stdout] 69a601faf2c8865bcde2e7d4ae93514ef9e69bdf45e48a15a034a92282ccf3e2
