[INFO] updating cached repository https://github.com/lise-henry/crowbook
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ac7d7c5e7dc5ebac8136cf0c2ec5843895c05b99
[INFO] checking lise-henry/crowbook against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flise-henry%2Fcrowbook" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lise-henry/crowbook on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lise-henry/crowbook
[INFO] finished tweaking git repo https://github.com/lise-henry/crowbook
[INFO] tweaked toml for git repo https://github.com/lise-henry/crowbook written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lise-henry/crowbook already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ff054621f9a0185fa99566b83da4a5474bdfe96bed0c0e9513f42eacf6e64f9e
[INFO] running `"docker" "start" "-a" "ff054621f9a0185fa99566b83da4a5474bdfe96bed0c0e9513f42eacf6e64f9e"`
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking typed-arena v1.4.1
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]     Checking miniz_oxide v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling stemmer v0.3.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking crowbook-intl-runtime v0.1.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking bzip2-sys v0.1.7
[INFO] [stderr]     Checking libflate v0.1.25
[INFO] [stderr]     Checking twoway v0.2.0
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking crowbook-text-processing v0.2.7
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking simplelog v0.6.0
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking caribon v0.8.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking h2 v0.1.25
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking onig v4.3.2
[INFO] [stderr]     Checking comrak v0.6.2
[INFO] [stderr]    Compiling crowbook-intl v0.2.1
[INFO] [stderr]     Checking hyper v0.12.33
[INFO] [stderr]    Compiling crowbook v0.15.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.97
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking epub-builder v0.4.4
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking syntect v3.2.0
[INFO] [stderr]     Checking reqwest v0.9.18
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_dir.rs:460:40
[INFO] [stderr]     |
[INFO] [stderr] 460 |     fn render(&self, _: &Book, _: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_dir.rs:477:40
[INFO] [stderr]     |
[INFO] [stderr] 477 |     fn render(&self, _: &Book, _: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/book.rs:182:18
[INFO] [stderr]     |
[INFO] [stderr] 182 |     cleaner: Box<Cleaner>,
[INFO] [stderr]     |                  ^^^^^^^ help: use `dyn`: `dyn Cleaner`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/book.rs:188:49
[INFO] [stderr]     |
[INFO] [stderr] 188 |     formats: HashMap<&'static str, (String, Box<BookRenderer>)>,
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn BookRenderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/book.rs:265:54
[INFO] [stderr]     |
[INFO] [stderr] 265 | ...                   renderer: Box<BookRenderer>) -> &mut Self {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn BookRenderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib/book.rs:1490:30
[INFO] [stderr]      |
[INFO] [stderr] 1490 |             let cleaner: Box<Cleaner> = if lang.starts_with("fr") {
[INFO] [stderr]      |                              ^^^^^^^ help: use `dyn`: `dyn Cleaner`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/epub.rs:73:44
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn render_book(&mut self, to: &mut Write) -> Result<String> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/epub.rs:544:44
[INFO] [stderr]     |
[INFO] [stderr] 544 |     fn render(&self, book: &Book, to: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/latex.rs:94:43
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn render_pdf(&mut self, to: &mut io::Write) -> Result<String> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:564:44
[INFO] [stderr]     |
[INFO] [stderr] 564 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:581:44
[INFO] [stderr]     |
[INFO] [stderr] 581 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:598:44
[INFO] [stderr]     |
[INFO] [stderr] 598 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:610:44
[INFO] [stderr]     |
[INFO] [stderr] 610 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/odt.rs:61:44
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn render_book(&mut self, to: &mut Write) -> Result<String> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/odt.rs:249:44
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn render(&self, book: &Book, to: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/book_renderer.rs:35:44
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn render(&self, book: &Book, to: &mut Write) -> Result<()>;
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_single.rs:275:44
[INFO] [stderr]     |
[INFO] [stderr] 275 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_single.rs:292:44
[INFO] [stderr]     |
[INFO] [stderr] 292 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_if.rs:337:44
[INFO] [stderr]     |
[INFO] [stderr] 337 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_dir.rs:460:40
[INFO] [stderr]     |
[INFO] [stderr] 460 |     fn render(&self, _: &Book, _: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_dir.rs:477:40
[INFO] [stderr]     |
[INFO] [stderr] 477 |     fn render(&self, _: &Book, _: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/book.rs:182:18
[INFO] [stderr]     |
[INFO] [stderr] 182 |     cleaner: Box<Cleaner>,
[INFO] [stderr]     |                  ^^^^^^^ help: use `dyn`: `dyn Cleaner`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/book.rs:188:49
[INFO] [stderr]     |
[INFO] [stderr] 188 |     formats: HashMap<&'static str, (String, Box<BookRenderer>)>,
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn BookRenderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/book.rs:265:54
[INFO] [stderr]     |
[INFO] [stderr] 265 | ...                   renderer: Box<BookRenderer>) -> &mut Self {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn BookRenderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib/book.rs:1490:30
[INFO] [stderr]      |
[INFO] [stderr] 1490 |             let cleaner: Box<Cleaner> = if lang.starts_with("fr") {
[INFO] [stderr]      |                              ^^^^^^^ help: use `dyn`: `dyn Cleaner`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/epub.rs:73:44
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn render_book(&mut self, to: &mut Write) -> Result<String> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/epub.rs:544:44
[INFO] [stderr]     |
[INFO] [stderr] 544 |     fn render(&self, book: &Book, to: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/latex.rs:94:43
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn render_pdf(&mut self, to: &mut io::Write) -> Result<String> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:564:44
[INFO] [stderr]     |
[INFO] [stderr] 564 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:581:44
[INFO] [stderr]     |
[INFO] [stderr] 581 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:598:44
[INFO] [stderr]     |
[INFO] [stderr] 598 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/latex.rs:610:44
[INFO] [stderr]     |
[INFO] [stderr] 610 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/odt.rs:61:44
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn render_book(&mut self, to: &mut Write) -> Result<String> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/odt.rs:249:44
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn render(&self, book: &Book, to: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib/book_renderer.rs:35:44
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn render(&self, book: &Book, to: &mut Write) -> Result<()>;
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_single.rs:275:44
[INFO] [stderr]     |
[INFO] [stderr] 275 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_single.rs:292:44
[INFO] [stderr]     |
[INFO] [stderr] 292 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib/html_if.rs:337:44
[INFO] [stderr]     |
[INFO] [stderr] 337 |     fn render(&self, book: &Book, to: &mut io::Write) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin/helpers.rs:129:20
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let mut f: Box<Write> = if let Some(book) = matches.value_of("BOOK") {
[INFO] [stderr]     |                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin/helpers.rs:129:20
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let mut f: Box<Write> = if let Some(book) = matches.value_of("BOOK") {
[INFO] [stderr]     |                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 47s
[INFO] running `"docker" "inspect" "ff054621f9a0185fa99566b83da4a5474bdfe96bed0c0e9513f42eacf6e64f9e"`
[INFO] running `"docker" "rm" "-f" "ff054621f9a0185fa99566b83da4a5474bdfe96bed0c0e9513f42eacf6e64f9e"`
[INFO] [stdout] ff054621f9a0185fa99566b83da4a5474bdfe96bed0c0e9513f42eacf6e64f9e