[INFO] fetching crate cosmoline 0.1.1...
[INFO] testing cosmoline-0.1.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate cosmoline 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cosmoline 0.1.1
[INFO] finished tweaking crates.io crate cosmoline 0.1.1
[INFO] tweaked toml for crates.io crate cosmoline 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cosmoline 0.1.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cosmoline 0.1.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06747940e31b5f6853e8c3abbbf383ea3dd89ccf05fe713f6d1788ba60e0a863
[INFO] running `Command { std: "docker" "start" "-a" "06747940e31b5f6853e8c3abbbf383ea3dd89ccf05fe713f6d1788ba60e0a863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06747940e31b5f6853e8c3abbbf383ea3dd89ccf05fe713f6d1788ba60e0a863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06747940e31b5f6853e8c3abbbf383ea3dd89ccf05fe713f6d1788ba60e0a863", kill_on_drop: false }`
[INFO] [stdout] 06747940e31b5f6853e8c3abbbf383ea3dd89ccf05fe713f6d1788ba60e0a863
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7110bd58cc9ffe1df5990c4f4159d6ebb41739860b4a10abb903309a8d5e433f
[INFO] running `Command { std: "docker" "start" "-a" "7110bd58cc9ffe1df5990c4f4159d6ebb41739860b4a10abb903309a8d5e433f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling handlebars v4.1.0
[INFO] [stderr]    Compiling cosmoline v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(destructuring_assignment)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/coverage_data.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct FileBranch {
[INFO] [stdout]    |                   ---------- fields in this struct
[INFO] [stdout] 23 |     pub line_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 24 |     pub column_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 25 |     pub line_end: i64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 26 |     pub column_end: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 27 |     pub execution_count: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     pub false_execution_count: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     pub file_id: i64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 30 |     pub expanded_file_id: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     pub region_kind: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileBranch` 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 `branches` and `expansions` are never read
[INFO] [stdout]   --> src/coverage_data.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct FileCoverage<'a> {
[INFO] [stdout]    |                   ------------ fields in this struct
[INFO] [stdout] 36 |     pub branches: Vec<FileBranch>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 37 |     pub expansions: Vec<FileExpansion<'a>>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileCoverage` 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 `branches`, `instantiations`, and `regions` are never read
[INFO] [stdout]   --> src/coverage_data.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub(crate) struct FileCoverageSummary {
[INFO] [stdout]    |                   ------------------- fields in this struct
[INFO] [stdout] 45 |     pub branches: Summary,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 46 |     pub functions: Summary,
[INFO] [stdout] 47 |     pub instantiations: Summary,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 48 |     pub lines: Summary,
[INFO] [stdout] 49 |     pub regions: Summary,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileCoverageSummary` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filenames` is never read
[INFO] [stdout]   --> src/coverage_data.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) struct FileExpansion<'a> {
[INFO] [stdout]    |                   ------------- field in this struct
[INFO] [stdout] 54 |     #[serde(borrow)]
[INFO] [stdout] 55 |     pub filenames: Vec<&'a str>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileExpansion` 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 `has_count` and `is_gap_region` are never read
[INFO] [stdout]   --> src/coverage_data.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub(crate) struct FileSegment {
[INFO] [stdout]    |                   ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub has_count: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 64 |     pub is_region_entry: bool,
[INFO] [stdout] 65 |     pub is_gap_region: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileSegment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `regions` is never read
[INFO] [stdout]   --> src/coverage_data.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub(crate) struct FunctionCoverage<'a> {
[INFO] [stdout]    |                   ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub regions: Vec<Region>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionCoverage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/coverage_data.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub(crate) struct Region {
[INFO] [stdout]    |                   ------ fields in this struct
[INFO] [stdout] 82 |     pub line_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 83 |     pub column_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 84 |     pub line_end: i64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 85 |     pub column_end: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 86 |     pub execution_count: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 87 |     pub file_id: i64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 88 |     pub expanded_file_id: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 89 |     pub region_kind: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Region` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `not_covered` is never read
[INFO] [stdout]   --> src/coverage_data.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub(crate) struct Summary {
[INFO] [stdout]    |                   ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 97 |     pub not_covered: Option<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Summary` 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 `report_type` and `version` are never read
[INFO] [stdout]    --> src/coverage_data.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub(crate) struct SummaryReport<'a> {
[INFO] [stdout]     |                   ------------- fields in this struct
[INFO] [stdout] 103 |     #[serde(rename = "type")]
[INFO] [stdout] 104 |     pub report_type: &'a str,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub version: semver::Version,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SummaryReport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.80s
[INFO] running `Command { std: "docker" "inspect" "7110bd58cc9ffe1df5990c4f4159d6ebb41739860b4a10abb903309a8d5e433f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7110bd58cc9ffe1df5990c4f4159d6ebb41739860b4a10abb903309a8d5e433f", kill_on_drop: false }`
[INFO] [stdout] 7110bd58cc9ffe1df5990c4f4159d6ebb41739860b4a10abb903309a8d5e433f
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 995715626ae3db99e188727bae77ffe1b864bb2c7bec97343a0e24561ee04271
[INFO] running `Command { std: "docker" "start" "-a" "995715626ae3db99e188727bae77ffe1b864bb2c7bec97343a0e24561ee04271", kill_on_drop: false }`
[INFO] [stderr]    Compiling cosmoline v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(destructuring_assignment)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/coverage_data.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct FileBranch {
[INFO] [stdout]    |                   ---------- fields in this struct
[INFO] [stdout] 23 |     pub line_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 24 |     pub column_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 25 |     pub line_end: i64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 26 |     pub column_end: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 27 |     pub execution_count: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     pub false_execution_count: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     pub file_id: i64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 30 |     pub expanded_file_id: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     pub region_kind: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileBranch` 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 `branches` and `expansions` are never read
[INFO] [stdout]   --> src/coverage_data.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct FileCoverage<'a> {
[INFO] [stdout]    |                   ------------ fields in this struct
[INFO] [stdout] 36 |     pub branches: Vec<FileBranch>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 37 |     pub expansions: Vec<FileExpansion<'a>>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileCoverage` 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 `branches`, `instantiations`, and `regions` are never read
[INFO] [stdout]   --> src/coverage_data.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub(crate) struct FileCoverageSummary {
[INFO] [stdout]    |                   ------------------- fields in this struct
[INFO] [stdout] 45 |     pub branches: Summary,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 46 |     pub functions: Summary,
[INFO] [stdout] 47 |     pub instantiations: Summary,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 48 |     pub lines: Summary,
[INFO] [stdout] 49 |     pub regions: Summary,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileCoverageSummary` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `filenames` is never read
[INFO] [stdout]   --> src/coverage_data.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) struct FileExpansion<'a> {
[INFO] [stdout]    |                   ------------- field in this struct
[INFO] [stdout] 54 |     #[serde(borrow)]
[INFO] [stdout] 55 |     pub filenames: Vec<&'a str>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileExpansion` 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 `has_count` and `is_gap_region` are never read
[INFO] [stdout]   --> src/coverage_data.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub(crate) struct FileSegment {
[INFO] [stdout]    |                   ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub has_count: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 64 |     pub is_region_entry: bool,
[INFO] [stdout] 65 |     pub is_gap_region: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileSegment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `regions` is never read
[INFO] [stdout]   --> src/coverage_data.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub(crate) struct FunctionCoverage<'a> {
[INFO] [stdout]    |                   ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub regions: Vec<Region>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionCoverage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/coverage_data.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub(crate) struct Region {
[INFO] [stdout]    |                   ------ fields in this struct
[INFO] [stdout] 82 |     pub line_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 83 |     pub column_start: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 84 |     pub line_end: i64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 85 |     pub column_end: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 86 |     pub execution_count: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 87 |     pub file_id: i64,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 88 |     pub expanded_file_id: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 89 |     pub region_kind: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Region` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `not_covered` is never read
[INFO] [stdout]   --> src/coverage_data.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub(crate) struct Summary {
[INFO] [stdout]    |                   ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 97 |     pub not_covered: Option<u64>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Summary` 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 `report_type` and `version` are never read
[INFO] [stdout]    --> src/coverage_data.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub(crate) struct SummaryReport<'a> {
[INFO] [stdout]     |                   ------------- fields in this struct
[INFO] [stdout] 103 |     #[serde(rename = "type")]
[INFO] [stdout] 104 |     pub report_type: &'a str,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub version: semver::Version,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SummaryReport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "995715626ae3db99e188727bae77ffe1b864bb2c7bec97343a0e24561ee04271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "995715626ae3db99e188727bae77ffe1b864bb2c7bec97343a0e24561ee04271", kill_on_drop: false }`
[INFO] [stdout] 995715626ae3db99e188727bae77ffe1b864bb2c7bec97343a0e24561ee04271
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2476c87922dabd2a296f3d8963446b0bf2b7234384d6c4851f985f3b48cdc18
[INFO] running `Command { std: "docker" "start" "-a" "f2476c87922dabd2a296f3d8963446b0bf2b7234384d6c4851f985f3b48cdc18", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(destructuring_assignment)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/coverage_data.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub(crate) struct FileBranch {
[INFO] [stderr]    |                   ---------- fields in this struct
[INFO] [stderr] 23 |     pub line_start: i64,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 24 |     pub column_start: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 25 |     pub line_end: i64,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 26 |     pub column_end: i64,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 27 |     pub execution_count: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 28 |     pub false_execution_count: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 29 |     pub file_id: i64,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 30 |     pub expanded_file_id: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 31 |     pub region_kind: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FileBranch` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `branches` and `expansions` are never read
[INFO] [stderr]   --> src/coverage_data.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub(crate) struct FileCoverage<'a> {
[INFO] [stderr]    |                   ------------ fields in this struct
[INFO] [stderr] 36 |     pub branches: Vec<FileBranch>,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 37 |     pub expansions: Vec<FileExpansion<'a>>,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FileCoverage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `branches`, `instantiations`, and `regions` are never read
[INFO] [stderr]   --> src/coverage_data.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub(crate) struct FileCoverageSummary {
[INFO] [stderr]    |                   ------------------- fields in this struct
[INFO] [stderr] 45 |     pub branches: Summary,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 46 |     pub functions: Summary,
[INFO] [stderr] 47 |     pub instantiations: Summary,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 48 |     pub lines: Summary,
[INFO] [stderr] 49 |     pub regions: Summary,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FileCoverageSummary` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `filenames` is never read
[INFO] [stderr]   --> src/coverage_data.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub(crate) struct FileExpansion<'a> {
[INFO] [stderr]    |                   ------------- field in this struct
[INFO] [stderr] 54 |     #[serde(borrow)]
[INFO] [stderr] 55 |     pub filenames: Vec<&'a str>,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FileExpansion` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `has_count` and `is_gap_region` are never read
[INFO] [stderr]   --> src/coverage_data.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub(crate) struct FileSegment {
[INFO] [stderr]    |                   ----------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 63 |     pub has_count: bool,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 64 |     pub is_region_entry: bool,
[INFO] [stderr] 65 |     pub is_gap_region: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FileSegment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `regions` is never read
[INFO] [stderr]   --> src/coverage_data.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub(crate) struct FunctionCoverage<'a> {
[INFO] [stderr]    |                   ---------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 74 |     pub regions: Vec<Region>,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `FunctionCoverage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/coverage_data.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub(crate) struct Region {
[INFO] [stderr]    |                   ------ fields in this struct
[INFO] [stderr] 82 |     pub line_start: i64,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 83 |     pub column_start: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 84 |     pub line_end: i64,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 85 |     pub column_end: i64,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 86 |     pub execution_count: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 87 |     pub file_id: i64,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 88 |     pub expanded_file_id: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 89 |     pub region_kind: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Region` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `not_covered` is never read
[INFO] [stderr]   --> src/coverage_data.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub(crate) struct Summary {
[INFO] [stderr]    |                   ------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 97 |     pub not_covered: Option<u64>,
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Summary` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `report_type` and `version` are never read
[INFO] [stderr]    --> src/coverage_data.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub(crate) struct SummaryReport<'a> {
[INFO] [stderr]     |                   ------------- fields in this struct
[INFO] [stderr] 103 |     #[serde(rename = "type")]
[INFO] [stderr] 104 |     pub report_type: &'a str,
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     pub version: semver::Version,
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `SummaryReport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `cosmoline` (bin "cosmoline" test) generated 10 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cosmoline-cdb8ea02d437d56b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f2476c87922dabd2a296f3d8963446b0bf2b7234384d6c4851f985f3b48cdc18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2476c87922dabd2a296f3d8963446b0bf2b7234384d6c4851f985f3b48cdc18", kill_on_drop: false }`
[INFO] [stdout] f2476c87922dabd2a296f3d8963446b0bf2b7234384d6c4851f985f3b48cdc18
