[INFO] cloning repository https://github.com/MikkelSchubert/big_text
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MikkelSchubert/big_text" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMikkelSchubert%2Fbig_text", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMikkelSchubert%2Fbig_text'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a5855e554b62355c8b109c6732ca986803d2219
[INFO] checking MikkelSchubert/big_text against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMikkelSchubert%2Fbig_text" "/workspace/builds/worker-62/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-62/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MikkelSchubert/big_text on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MikkelSchubert/big_text
[INFO] finished tweaking git repo https://github.com/MikkelSchubert/big_text
[INFO] tweaked toml for git repo https://github.com/MikkelSchubert/big_text written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] crate git repo https://github.com/MikkelSchubert/big_text already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 037850cb03ae6b3fb27884a92cddd758cfa616a6d4d49193d073917b0db95a0e
[INFO] running `Command { std: "docker" "start" "-a" "037850cb03ae6b3fb27884a92cddd758cfa616a6d4d49193d073917b0db95a0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "037850cb03ae6b3fb27884a92cddd758cfa616a6d4d49193d073917b0db95a0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "037850cb03ae6b3fb27884a92cddd758cfa616a6d4d49193d073917b0db95a0e", kill_on_drop: false }`
[INFO] [stdout] 037850cb03ae6b3fb27884a92cddd758cfa616a6d4d49193d073917b0db95a0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 819a7845794901355d3641db06862d108fdc49a5621d10ddf14de2ccd2a8d528
[INFO] running `Command { std: "docker" "start" "-a" "819a7845794901355d3641db06862d108fdc49a5621d10ddf14de2ccd2a8d528", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]     Checking same-file v0.1.3
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking clap v2.23.1
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]     Checking flate2 v0.2.17
[INFO] [stderr]     Checking big_text v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `stderr`
[INFO] [stdout]  --> src/stderr.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | macro_rules! stderr(
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/processor.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub criteria: Box<Criteria>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/processor.rs:58:50
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn set_criteria(&mut self, criteria: Box<Criteria>) {
[INFO] [stdout]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/processor.rs:131:45
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn is_candidate_file(criteria: &mut Box<Criteria>,
[INFO] [stdout]     |                                             ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 |         0...1023 => return format!("{}", n_bytes),
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         1024...1048575 => (2u64.pow(10), " KB"),
[INFO] [stdout]    |             ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |         1048576...1073741823 => (2u64.pow(20), " MB"),
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |         1073741824...1099511627775 => (2u64.pow(30), " GB"),
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:46:70
[INFO] [stdout]    |
[INFO] [stdout] 46 |         args::CriteriaArg::Text => Box::new(TextFiles::new()) as Box<Criteria>,
[INFO] [stdout]    |                                                                      ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:48:75
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Box::new(DeflatableFiles::new(args.compression_ratio)) as Box<Criteria>
[INFO] [stdout]    |                                                                           ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `stderr`
[INFO] [stdout]  --> src/stderr.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | macro_rules! stderr(
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/processor.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub criteria: Box<Criteria>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/processor.rs:58:50
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn set_criteria(&mut self, criteria: Box<Criteria>) {
[INFO] [stdout]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/processor.rs:131:45
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn is_candidate_file(criteria: &mut Box<Criteria>,
[INFO] [stdout]     |                                             ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 |         0...1023 => return format!("{}", n_bytes),
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         1024...1048575 => (2u64.pow(10), " KB"),
[INFO] [stdout]    |             ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |         1048576...1073741823 => (2u64.pow(20), " MB"),
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |         1073741824...1099511627775 => (2u64.pow(30), " GB"),
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:46:70
[INFO] [stdout]    |
[INFO] [stdout] 46 |         args::CriteriaArg::Text => Box::new(TextFiles::new()) as Box<Criteria>,
[INFO] [stdout]    |                                                                      ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:48:75
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Box::new(DeflatableFiles::new(args.compression_ratio)) as Box<Criteria>
[INFO] [stdout]    |                                                                           ^^^^^^^^ help: use `dyn`: `dyn Criteria`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:36:32
[INFO] [stdout]    |
[INFO] [stdout] 36 |         write!(fmt, "{}", self.description())?;
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:40:59
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 write!(fmt, " due to IO error: {}", error.description())?
[INFO] [stdout]    |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:64
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 write!(fmt, " due to walkdir error: {}", error.description())?
[INFO] [stdout]    |                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:36:32
[INFO] [stdout]    |
[INFO] [stdout] 36 |         write!(fmt, "{}", self.description())?;
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:40:59
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 write!(fmt, " due to IO error: {}", error.description())?
[INFO] [stdout]    |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:47:64
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 write!(fmt, " due to walkdir error: {}", error.description())?
[INFO] [stdout]    |                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.99s
[INFO] running `Command { std: "docker" "inspect" "819a7845794901355d3641db06862d108fdc49a5621d10ddf14de2ccd2a8d528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "819a7845794901355d3641db06862d108fdc49a5621d10ddf14de2ccd2a8d528", kill_on_drop: false }`
[INFO] [stdout] 819a7845794901355d3641db06862d108fdc49a5621d10ddf14de2ccd2a8d528