[INFO] cloning repository https://github.com/phodal/rmd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phodal/rmd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Frmd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Frmd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 016ad046dcd29c3088d260e743c63bbf489a40d6
[INFO] checking phodal/rmd 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%2Fphodal%2Frmd" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/phodal/rmd
[INFO] finished tweaking git repo https://github.com/phodal/rmd
[INFO] tweaked toml for git repo https://github.com/phodal/rmd written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/phodal/rmd 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/phodal/rmd 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3486102f90e084b203fa788275ec854305e7daebeff47b5fd989d9069058c1da
[INFO] running `Command { std: "docker" "start" "-a" "3486102f90e084b203fa788275ec854305e7daebeff47b5fd989d9069058c1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3486102f90e084b203fa788275ec854305e7daebeff47b5fd989d9069058c1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3486102f90e084b203fa788275ec854305e7daebeff47b5fd989d9069058c1da", kill_on_drop: false }`
[INFO] [stdout] 3486102f90e084b203fa788275ec854305e7daebeff47b5fd989d9069058c1da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cff3b2419fd949c653d26a09572ee740939b701cb07f2f852b53a8fbe6fff58d
[INFO] running `Command { std: "docker" "start" "-a" "cff3b2419fd949c653d26a09572ee740939b701cb07f2f852b53a8fbe6fff58d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling pulldown-cmark v0.7.1
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[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 tempdir v0.3.7
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking exemd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `cmd_level`, `name`, `desc`, `subcommands`, and `required_args` are never read
[INFO] [stdout]  --> src/rmd/command.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Command {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 3 |     pub cmd_level: u8,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 4 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 5 |     pub desc: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 6 |     pub script: Script,
[INFO] [stdout] 7 |     pub subcommands: Vec<Command>,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 8 |     pub required_args: Vec<RequiredArg>,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `val` are never read
[INFO] [stdout]   --> src/rmd/command.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct RequiredArg {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 68 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 69 |     pub val: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RequiredArg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/rmd/command.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct OptionFlag {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 84 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 85 |     pub desc: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 86 |     pub short: String,            // v        (used as -v)
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 87 |     pub long: String,             // verbose  (used as --verbose)
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 88 |     pub multiple: bool,           // Can it have multiple values? (-vvv OR -i one -i two)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 89 |     pub takes_value: bool,        // Does it take a value? (-i value)
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 90 |     pub validate_as_number: bool, // Should we validate it as a number?
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 91 |     pub val: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptionFlag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `artifact_id` and `group_id` are never read
[INFO] [stdout]   --> src/rmd/lang/mod.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Dependency {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub artifact_id: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 33 |     pub group_id: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Dependency` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_run` is never used
[INFO] [stdout]   --> src/rmd/lang/mod.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub trait LangExecutor {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn try_run(&self);
[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:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[allow(dead_code)]
[INFO] [stdout] 13 | |     config: 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/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rmd/parser.rs:56:36
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn create_markdown_parser(content: &str) -> Parser {
[INFO] [stdout]    |                                    ^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn create_markdown_parser(content: &str) -> Parser<'_> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exemd` (bin "exemd") due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `cmd_level`, `name`, `desc`, `subcommands`, and `required_args` are never read
[INFO] [stdout]  --> src/rmd/command.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Command {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 3 |     pub cmd_level: u8,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 4 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 5 |     pub desc: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 6 |     pub script: Script,
[INFO] [stdout] 7 |     pub subcommands: Vec<Command>,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 8 |     pub required_args: Vec<RequiredArg>,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `val` are never read
[INFO] [stdout]   --> src/rmd/command.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct RequiredArg {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 68 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 69 |     pub val: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RequiredArg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/rmd/command.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct OptionFlag {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 84 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 85 |     pub desc: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 86 |     pub short: String,            // v        (used as -v)
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 87 |     pub long: String,             // verbose  (used as --verbose)
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 88 |     pub multiple: bool,           // Can it have multiple values? (-vvv OR -i one -i two)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 89 |     pub takes_value: bool,        // Does it take a value? (-i value)
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 90 |     pub validate_as_number: bool, // Should we validate it as a number?
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 91 |     pub val: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptionFlag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `artifact_id` and `group_id` are never read
[INFO] [stdout]   --> src/rmd/lang/mod.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Dependency {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub artifact_id: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 33 |     pub group_id: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Dependency` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_run` is never used
[INFO] [stdout]   --> src/rmd/lang/mod.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub trait LangExecutor {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn try_run(&self);
[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:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[allow(dead_code)]
[INFO] [stdout] 13 | |     config: 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/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rmd/parser.rs:56:36
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn create_markdown_parser(content: &str) -> Parser {
[INFO] [stdout]    |                                    ^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn create_markdown_parser(content: &str) -> Parser<'_> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exemd` (bin "exemd" test) due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cff3b2419fd949c653d26a09572ee740939b701cb07f2f852b53a8fbe6fff58d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cff3b2419fd949c653d26a09572ee740939b701cb07f2f852b53a8fbe6fff58d", kill_on_drop: false }`
[INFO] [stdout] cff3b2419fd949c653d26a09572ee740939b701cb07f2f852b53a8fbe6fff58d
