[INFO] fetching crate atlas-coverage-core 0.1.0...
[INFO] checking atlas-coverage-core-0.1.0 against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] extracting crate atlas-coverage-core 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate atlas-coverage-core 0.1.0 on toolchain 8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30a3941cac83c8e1ddb1df6e21a61df278b5edd36afd7b62e4126bc644c4876a
[INFO] running `Command { std: "docker" "start" "-a" "30a3941cac83c8e1ddb1df6e21a61df278b5edd36afd7b62e4126bc644c4876a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30a3941cac83c8e1ddb1df6e21a61df278b5edd36afd7b62e4126bc644c4876a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30a3941cac83c8e1ddb1df6e21a61df278b5edd36afd7b62e4126bc644c4876a", kill_on_drop: false }`
[INFO] [stdout] 30a3941cac83c8e1ddb1df6e21a61df278b5edd36afd7b62e4126bc644c4876a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c1ea1cbdba07023ac4ecac9015f7d13a4c499db641e085c61efebec279dae97
[INFO] running `Command { std: "docker" "start" "-a" "4c1ea1cbdba07023ac4ecac9015f7d13a4c499db641e085c61efebec279dae97", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]     Checking xml-rs v0.8.16
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking vlq v0.5.1
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking bstr v1.6.0
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking lcov-parser v3.2.2
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking serde_json v1.0.104
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking globset v0.4.13
[INFO] [stderr]     Checking ecmascript v0.1.0
[INFO] [stderr]     Checking 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)]` 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)]` 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)]` 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)]` 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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: 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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: 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: 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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: 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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: 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)]` on by default
[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)]` 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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "4c1ea1cbdba07023ac4ecac9015f7d13a4c499db641e085c61efebec279dae97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c1ea1cbdba07023ac4ecac9015f7d13a4c499db641e085c61efebec279dae97", kill_on_drop: false }`
[INFO] [stdout] 4c1ea1cbdba07023ac4ecac9015f7d13a4c499db641e085c61efebec279dae97
