[INFO] fetching crate debug_finder 0.3.1...
[INFO] checking debug_finder-0.3.1 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate debug_finder 0.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate debug_finder 0.3.1
[INFO] finished tweaking crates.io crate debug_finder 0.3.1
[INFO] tweaked toml for crates.io crate debug_finder 0.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate debug_finder 0.3.1 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate debug_finder 0.3.1 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e6d241bd36e3977291206834814746d92d924fe306dfb8b510b6708cc7f85f0
[INFO] running `Command { std: "docker" "start" "-a" "8e6d241bd36e3977291206834814746d92d924fe306dfb8b510b6708cc7f85f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e6d241bd36e3977291206834814746d92d924fe306dfb8b510b6708cc7f85f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e6d241bd36e3977291206834814746d92d924fe306dfb8b510b6708cc7f85f0", kill_on_drop: false }`
[INFO] [stdout] 8e6d241bd36e3977291206834814746d92d924fe306dfb8b510b6708cc7f85f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99f9a3a6d10ff8e8eed8e66e43fd69870ceba60ec835cbb7f971ab7fea3b11a2
[INFO] running `Command { std: "docker" "start" "-a" "99f9a3a6d10ff8e8eed8e66e43fd69870ceba60ec835cbb7f971ab7fea3b11a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking json v0.12.0
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking debug_finder v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `config_files` is never read
[INFO] [stdout]  --> src/project.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub struct Project {
[INFO] [stdout]   |                ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 7 |         pub config_files:   Vec<String>
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config_files` is never read
[INFO] [stdout]  --> src/project.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub struct Project {
[INFO] [stdout]   |                ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 7 |         pub config_files:   Vec<String>
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     panic!(remove_file.err());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `Option<std::io::Error>`
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     panic!("{:?}", remove_file.err());
[INFO] [stdout]    |                            +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 85 -                     panic!(remove_file.err());
[INFO] [stdout] 85 +                     std::panic::panic_any(remove_file.err());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     panic!(write_file.err());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `Option<std::io::Error>`
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     panic!("{:?}", write_file.err());
[INFO] [stdout]    |                            +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 91 -                     panic!(write_file.err());
[INFO] [stdout] 91 +                     std::panic::panic_any(write_file.err());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     panic!(remove_file.err());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `Option<std::io::Error>`
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     panic!("{:?}", remove_file.err());
[INFO] [stdout]    |                            +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 85 -                     panic!(remove_file.err());
[INFO] [stdout] 85 +                     std::panic::panic_any(remove_file.err());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     panic!(write_file.err());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `Option<std::io::Error>`
[INFO] [stdout]    |
[INFO] [stdout] 91 |                     panic!("{:?}", write_file.err());
[INFO] [stdout]    |                            +++++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 91 -                     panic!(write_file.err());
[INFO] [stdout] 91 +                     std::panic::panic_any(write_file.err());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.32s
[INFO] running `Command { std: "docker" "inspect" "99f9a3a6d10ff8e8eed8e66e43fd69870ceba60ec835cbb7f971ab7fea3b11a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99f9a3a6d10ff8e8eed8e66e43fd69870ceba60ec835cbb7f971ab7fea3b11a2", kill_on_drop: false }`
[INFO] [stdout] 99f9a3a6d10ff8e8eed8e66e43fd69870ceba60ec835cbb7f971ab7fea3b11a2