[INFO] cloning repository https://github.com/bennyboer/md2letter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bennyboer/md2letter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbennyboer%2Fmd2letter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbennyboer%2Fmd2letter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc27dc506b06c45797cfeb7ff7b517e0aeca2c60
[INFO] checking bennyboer/md2letter against 24e1a22664233bce1f9b5dc6eee7c1f74327e28c for pr-159343-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbennyboer%2Fmd2letter" "/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/bennyboer/md2letter
[INFO] finished tweaking git repo https://github.com/bennyboer/md2letter
[INFO] tweaked toml for git repo https://github.com/bennyboer/md2letter written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bennyboer/md2letter on toolchain 24e1a22664233bce1f9b5dc6eee7c1f74327e28c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bennyboer/md2letter 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" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d
[INFO] running `Command { std: "docker" "start" "29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d", 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" "29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d", 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" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d" "/opt/rustwide/cargo-home/bin/cargo" "+24e1a22664233bce1f9b5dc6eee7c1f74327e28c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking utf8-chars v2.0.3
[INFO] [stderr]     Checking md2letter-convert v0.1.0 (/opt/rustwide/workdir/convert)
[INFO] [stdout] warning: methods `kind`, `src`, and `span` are never used
[INFO] [stdout]   --> convert/src/categorizer/block.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl CategorizedBlock {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub(crate) fn kind(&self) -> &BlockKind {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub(crate) fn src(&self) -> &str {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub(crate) fn span(&self) -> &SourceSpan {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> convert/src/parser/block/mod.rs:41:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl ParsedBlock {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub(crate) fn kind(&self) -> &ParsedBlockKind {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub(crate) fn is_text(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub(crate) fn is_list(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub(crate) fn is_heading(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub(crate) fn is_table(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub(crate) fn is_image(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub(crate) fn is_quote(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub(crate) fn is_code(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub(crate) fn is_function(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub(crate) fn is_horizontal_rule(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `tree` is never used
[INFO] [stdout]   --> convert/src/parser/block/text/mod.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl TextBlock {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub(crate) fn tree(&self) -> &TextTree {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `message` and `source_position` are never read
[INFO] [stdout]  --> convert/src/parser/result.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct ParseError {
[INFO] [stdout]   |                   ---------- fields in this struct
[INFO] [stdout] 7 |     pub message: String,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 8 |     pub source_position: SourcePosition,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `src` is never used
[INFO] [stdout]   --> convert/src/splitter/block.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl SplitterBlock {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub(crate) fn src(&self) -> &str {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `block` is never read
[INFO] [stdout]  --> convert/src/transformer/result.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct TransformError {
[INFO] [stdout]   |                   -------------- field in this struct
[INFO] [stdout] 7 |     pub message: String,
[INFO] [stdout] 8 |     pub block: ParsedBlock,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TransformError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `span` are never read
[INFO] [stdout]   --> convert/src/transformer/tree/node.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub(crate) struct LetterScriptNode {
[INFO] [stdout]    |                   ---------------- fields in this struct
[INFO] [stdout]  8 |     id: LetterScriptNodeId,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     span: SourceSpan,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `id` and `span` are never used
[INFO] [stdout]   --> convert/src/transformer/tree/node.rs:61:19
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl LetterScriptNode {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub(crate) fn id(&self) -> LetterScriptNodeId {
[INFO] [stdout]    |                   ^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub(crate) fn span(&self) -> &SourceSpan {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking md2letter v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> cli/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut reader = BufReader::new(file);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> cli/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut reader = BufReader::new(file);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] [stdout] warning: field `source_position` is never read
[INFO] [stdout]  --> convert/src/parser/result.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct ParseError {
[INFO] [stdout]   |                   ---------- field in this struct
[INFO] [stdout] 7 |     pub message: String,
[INFO] [stdout] 8 |     pub source_position: SourcePosition,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` 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: field `block` is never read
[INFO] [stdout]  --> convert/src/transformer/result.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct TransformError {
[INFO] [stdout]   |                   -------------- field in this struct
[INFO] [stdout] 7 |     pub message: String,
[INFO] [stdout] 8 |     pub block: ParsedBlock,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TransformError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `span` are never read
[INFO] [stdout]   --> convert/src/transformer/tree/node.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub(crate) struct LetterScriptNode {
[INFO] [stdout]    |                   ---------------- fields in this struct
[INFO] [stdout]  8 |     id: LetterScriptNodeId,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     span: SourceSpan,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `id` and `span` are never used
[INFO] [stdout]   --> convert/src/transformer/tree/node.rs:61:19
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl LetterScriptNode {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub(crate) fn id(&self) -> LetterScriptNodeId {
[INFO] [stdout]    |                   ^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub(crate) fn span(&self) -> &SourceSpan {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d", kill_on_drop: false }`
[INFO] [stdout] 29c959fb15c651daa687a0d0bc8481d8411c5beba1acee3870b740a72ee8609d
