[INFO] cloning repository https://github.com/ianthehenry/rundown
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ianthehenry/rundown" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianthehenry%2Frundown", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianthehenry%2Frundown'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f3b6bf1f0fc84f8ee7cbbed296bf8eee7569bb7
[INFO] checking ianthehenry/rundown against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianthehenry%2Frundown" "/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/ianthehenry/rundown
[INFO] finished tweaking git repo https://github.com/ianthehenry/rundown
[INFO] tweaked toml for git repo https://github.com/ianthehenry/rundown written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ianthehenry/rundown on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ianthehenry/rundown 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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pulldown-cmark v0.8.0
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39
[INFO] running `Command { std: "docker" "start" "7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid --cfg crater_hack --force-warn invalid-c-variadic-arguments" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking rundown v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `start_line`, `end_line`, and `info_string` are never read
[INFO] [stdout]   --> src/main.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  7 |     Fenced {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout]  8 |         start_line: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]  9 |         end_line: Option<&'a str>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 10 |         info_string: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CodeBlockFlavor` has a derived impl for the trait `Debug`, but this is 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 `1` and `2` are never read
[INFO] [stdout]   --> src/main.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     CodeBlock(&'a str, CodeBlockFlavor<'a>, String),
[INFO] [stdout]    |     ---------          ^^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Component` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 21 -     CodeBlock(&'a str, CodeBlockFlavor<'a>, String),
[INFO] [stdout] 21 +     CodeBlock(&'a str, (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:35:40
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub(crate) fn to_components(input: &str) -> Box<dyn Iterator<Item = Component> + '_> {
[INFO] [stdout]    |                                        ^^^^ the lifetime is elided here ^^^^^^^^^ the same lifetime is hidden 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] 35 |     pub(crate) fn to_components(input: &str) -> Box<dyn Iterator<Item = Component<'_>> + '_> {
[INFO] [stdout]    |                                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start_line`, `end_line`, and `info_string` are never read
[INFO] [stdout]   --> src/main.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  7 |     Fenced {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout]  8 |         start_line: &'a str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]  9 |         end_line: Option<&'a str>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 10 |         info_string: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CodeBlockFlavor` has a derived impl for the trait `Debug`, but this is 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 `1` and `2` are never read
[INFO] [stdout]   --> src/main.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     CodeBlock(&'a str, CodeBlockFlavor<'a>, String),
[INFO] [stdout]    |     ---------          ^^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Component` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 21 -     CodeBlock(&'a str, CodeBlockFlavor<'a>, String),
[INFO] [stdout] 21 +     CodeBlock(&'a str, (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:35:40
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub(crate) fn to_components(input: &str) -> Box<dyn Iterator<Item = Component> + '_> {
[INFO] [stdout]    |                                        ^^^^ the lifetime is elided here ^^^^^^^^^ the same lifetime is hidden 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] 35 |     pub(crate) fn to_components(input: &str) -> Box<dyn Iterator<Item = Component<'_>> + '_> {
[INFO] [stdout]    |                                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.36s
[INFO] running `Command { std: "docker" "inspect" "7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39", kill_on_drop: false }`
[INFO] [stdout] 7d95a167210576d0d095267e28ec6f54d77d52f3b088c1e55cb2a2d45e1c7f39
