[INFO] fetching crate atlas-coverage-core 0.1.0...
[INFO] building atlas-coverage-core-0.1.0 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate atlas-coverage-core 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate atlas-coverage-core 0.1.0
[INFO] finished tweaking crates.io crate atlas-coverage-core 0.1.0
[INFO] tweaked toml for crates.io crate atlas-coverage-core 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate atlas-coverage-core 0.1.0 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding ecmascript v0.1.0 (available: v0.2.0)
[INFO] [stderr]       Adding xml-rs v0.8.28 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c74997a1f9f9512853bea83bf8d8db3537d1f69ad1f9517caf89f50caa4c8a3
[INFO] running `Command { std: "docker" "start" "-a" "7c74997a1f9f9512853bea83bf8d8db3537d1f69ad1f9517caf89f50caa4c8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c74997a1f9f9512853bea83bf8d8db3537d1f69ad1f9517caf89f50caa4c8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c74997a1f9f9512853bea83bf8d8db3537d1f69ad1f9517caf89f50caa4c8a3", kill_on_drop: false }`
[INFO] [stdout] 7c74997a1f9f9512853bea83bf8d8db3537d1f69ad1f9517caf89f50caa4c8a3
[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" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 779166fcb9b9c0c1189d8fbd56199172b1e4cec8906d4a638f797950541bf7ab
[INFO] running `Command { std: "docker" "start" "-a" "779166fcb9b9c0c1189d8fbd56199172b1e4cec8906d4a638f797950541bf7ab", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling xml-rs v0.8.28
[INFO] [stderr]    Compiling vlq v0.5.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling combine v2.5.2
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling lcov-parser v3.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling globset v0.4.18
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling ecmascript v0.1.0
[INFO] [stderr]    Compiling atlas-coverage-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/settings.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct GlobSetVisitor{};
[INFO] [stdout]    |                            ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/range.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |             try!(write!(f, " {}", range));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/settings.rs:62:75
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn from_path(settings_path: impl AsRef<Path>) -> Result<Settings, Box<Error>> {
[INFO] [stdout]    |                                                                           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn from_path(settings_path: impl AsRef<Path>) -> Result<Settings, Box<dyn Error>> {
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/settings.rs:66:44
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn from_root() -> Result<Settings, Box<Error>> {
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn from_root() -> Result<Settings, Box<dyn Error>> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lines.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     for mut v in vlq_decode::MappingData::new(source_map.mappings.as_bytes()) {
[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: method `write_xml_to_stdout` is never used
[INFO] [stdout]    --> src/lines.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl ManyCoverage {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn write_xml_to_stdout(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/bin/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.78s
[INFO] running `Command { std: "docker" "inspect" "779166fcb9b9c0c1189d8fbd56199172b1e4cec8906d4a638f797950541bf7ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "779166fcb9b9c0c1189d8fbd56199172b1e4cec8906d4a638f797950541bf7ab", kill_on_drop: false }`
[INFO] [stdout] 779166fcb9b9c0c1189d8fbd56199172b1e4cec8906d4a638f797950541bf7ab
[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" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 44359bb075c93951e75428e63ac64978ed886c14e28b7cbe070c1d78b4814664
[INFO] running `Command { std: "docker" "start" "-a" "44359bb075c93951e75428e63ac64978ed886c14e28b7cbe070c1d78b4814664", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling atlas-coverage-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/settings.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct GlobSetVisitor{};
[INFO] [stdout]    |                            ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/range.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |             try!(write!(f, " {}", range));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/settings.rs:62:75
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn from_path(settings_path: impl AsRef<Path>) -> Result<Settings, Box<Error>> {
[INFO] [stdout]    |                                                                           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn from_path(settings_path: impl AsRef<Path>) -> Result<Settings, Box<dyn Error>> {
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/settings.rs:66:44
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn from_root() -> Result<Settings, Box<Error>> {
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn from_root() -> Result<Settings, Box<dyn Error>> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lines.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     for mut v in vlq_decode::MappingData::new(source_map.mappings.as_bytes()) {
[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: method `write_xml_to_stdout` is never used
[INFO] [stdout]    --> src/lines.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl ManyCoverage {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn write_xml_to_stdout(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/bin/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/settings.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct GlobSetVisitor{};
[INFO] [stdout]    |                            ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/range.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |             try!(write!(f, " {}", range));
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]   --> src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use std::env::args;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]    --> src/lib.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     use std::path::Path;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/settings.rs:62:75
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn from_path(settings_path: impl AsRef<Path>) -> Result<Settings, Box<Error>> {
[INFO] [stdout]    |                                                                           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn from_path(settings_path: impl AsRef<Path>) -> Result<Settings, Box<dyn Error>> {
[INFO] [stdout]    |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/settings.rs:66:44
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn from_root() -> Result<Settings, Box<Error>> {
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn from_root() -> Result<Settings, Box<dyn Error>> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lines.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     for mut v in vlq_decode::MappingData::new(source_map.mappings.as_bytes()) {
[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: method `write_xml_to_stdout` is never used
[INFO] [stdout]    --> src/lines.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl ManyCoverage {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn write_xml_to_stdout(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "44359bb075c93951e75428e63ac64978ed886c14e28b7cbe070c1d78b4814664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44359bb075c93951e75428e63ac64978ed886c14e28b7cbe070c1d78b4814664", kill_on_drop: false }`
[INFO] [stdout] 44359bb075c93951e75428e63ac64978ed886c14e28b7cbe070c1d78b4814664
