[INFO] cloning repository https://github.com/dedmons/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dedmons/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdedmons%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdedmons%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 226419bdeb7c70c3b98630d6627b111a02a2a5ff
[INFO] checking dedmons/mandelbrot against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdedmons%2Fmandelbrot" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dedmons/mandelbrot on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dedmons/mandelbrot
[INFO] finished tweaking git repo https://github.com/dedmons/mandelbrot
[INFO] tweaked toml for git repo https://github.com/dedmons/mandelbrot written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dedmons/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9ce65e98eb75fe6ce5b7f8576a93b314df81bc92dfa6290de150a9937ee0b178
[INFO] running `Command { std: "docker" "start" "-a" "9ce65e98eb75fe6ce5b7f8576a93b314df81bc92dfa6290de150a9937ee0b178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ce65e98eb75fe6ce5b7f8576a93b314df81bc92dfa6290de150a9937ee0b178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ce65e98eb75fe6ce5b7f8576a93b314df81bc92dfa6290de150a9937ee0b178", kill_on_drop: false }`
[INFO] [stdout] 9ce65e98eb75fe6ce5b7f8576a93b314df81bc92dfa6290de150a9937ee0b178
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6255990cb92706cb4a5a67d5a418325c10dd2570a6c0cc145f50a3b0e3b02591
[INFO] running `Command { std: "docker" "start" "-a" "6255990cb92706cb4a5a67d5a418325c10dd2570a6c0cc145f50a3b0e3b02591", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking time v0.2.19
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use time::PreciseTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let start = PreciseTime::now();
[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/main.rs:218:28
[INFO] [stdout]     |
[INFO] [stdout] 218 | ...                   Error::description(&why)),
[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/main.rs:226:28
[INFO] [stdout]     |
[INFO] [stdout] 226 | ...                   Error::description(&why)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:238:46
[INFO] [stdout]     |
[INFO] [stdout] 238 |     println!("Bootstrap time:\n{}", start.to(PreciseTime::now()));
[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/main.rs:270:32
[INFO] [stdout]     |
[INFO] [stdout] 270 | ...                   Error::description(&why)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:281:28
[INFO] [stdout]     |
[INFO] [stdout] 281 |         let render_start = PreciseTime::now();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:282:31
[INFO] [stdout]     |
[INFO] [stdout] 282 |         let mut phase_start = PreciseTime::now();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:286:61
[INFO] [stdout]     |
[INFO] [stdout] 286 |         println!("Generation Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:288:23
[INFO] [stdout]     |
[INFO] [stdout] 288 |         phase_start = PreciseTime::now();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:312:57
[INFO] [stdout]     |
[INFO] [stdout] 312 |         println!("Render Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:313:64
[INFO] [stdout]     |
[INFO] [stdout] 313 |         println!("Total Render Duration:\n{}", render_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:316:42
[INFO] [stdout]     |
[INFO] [stdout] 316 |     println!("Total time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use time::PreciseTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 |     let start = PreciseTime::now();
[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/main.rs:218:28
[INFO] [stdout]     |
[INFO] [stdout] 218 | ...                   Error::description(&why)),
[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/main.rs:226:28
[INFO] [stdout]     |
[INFO] [stdout] 226 | ...                   Error::description(&why)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:238:46
[INFO] [stdout]     |
[INFO] [stdout] 238 |     println!("Bootstrap time:\n{}", start.to(PreciseTime::now()));
[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/main.rs:270:32
[INFO] [stdout]     |
[INFO] [stdout] 270 | ...                   Error::description(&why)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:281:28
[INFO] [stdout]     |
[INFO] [stdout] 281 |         let render_start = PreciseTime::now();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:282:31
[INFO] [stdout]     |
[INFO] [stdout] 282 |         let mut phase_start = PreciseTime::now();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:286:61
[INFO] [stdout]     |
[INFO] [stdout] 286 |         println!("Generation Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:288:23
[INFO] [stdout]     |
[INFO] [stdout] 288 |         phase_start = PreciseTime::now();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:312:57
[INFO] [stdout]     |
[INFO] [stdout] 312 |         println!("Render Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:313:64
[INFO] [stdout]     |
[INFO] [stdout] 313 |         println!("Total Render Duration:\n{}", render_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]    --> src/main.rs:316:42
[INFO] [stdout]     |
[INFO] [stdout] 316 |     println!("Total time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:238:43
[INFO] [stdout]     |
[INFO] [stdout] 238 |     println!("Bootstrap time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:238:43
[INFO] [stdout]     |
[INFO] [stdout] 238 |     println!("Bootstrap time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:238:37
[INFO] [stdout]     |
[INFO] [stdout] 238 |     println!("Bootstrap time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:286:58
[INFO] [stdout]     |
[INFO] [stdout] 286 |         println!("Generation Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:286:46
[INFO] [stdout]     |
[INFO] [stdout] 286 |         println!("Generation Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:312:54
[INFO] [stdout]     |
[INFO] [stdout] 312 |         println!("Render Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:312:42
[INFO] [stdout]     |
[INFO] [stdout] 312 |         println!("Render Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:313:61
[INFO] [stdout]     |
[INFO] [stdout] 313 |         println!("Total Render Duration:\n{}", render_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                             ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:313:48
[INFO] [stdout]     |
[INFO] [stdout] 313 |         println!("Total Render Duration:\n{}", render_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:316:39
[INFO] [stdout]     |
[INFO] [stdout] 316 |     println!("Total time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:316:33
[INFO] [stdout]     |
[INFO] [stdout] 316 |     println!("Total time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mandelbrot`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:238:37
[INFO] [stdout]     |
[INFO] [stdout] 238 |     println!("Bootstrap time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:286:58
[INFO] [stdout]     |
[INFO] [stdout] 286 |         println!("Generation Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:286:46
[INFO] [stdout]     |
[INFO] [stdout] 286 |         println!("Generation Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:312:54
[INFO] [stdout]     |
[INFO] [stdout] 312 |         println!("Render Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:312:42
[INFO] [stdout]     |
[INFO] [stdout] 312 |         println!("Render Duration:\n{}", phase_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:313:61
[INFO] [stdout]     |
[INFO] [stdout] 313 |         println!("Total Render Duration:\n{}", render_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                             ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:313:48
[INFO] [stdout]     |
[INFO] [stdout] 313 |         println!("Total Render Duration:\n{}", render_start.to(PreciseTime::now()));
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]    --> src/main.rs:316:39
[INFO] [stdout]     |
[INFO] [stdout] 316 |     println!("Total time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/main.rs:316:33
[INFO] [stdout]     |
[INFO] [stdout] 316 |     println!("Total time:\n{}", start.to(PreciseTime::now()));
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `time::Duration`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]     = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6255990cb92706cb4a5a67d5a418325c10dd2570a6c0cc145f50a3b0e3b02591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6255990cb92706cb4a5a67d5a418325c10dd2570a6c0cc145f50a3b0e3b02591", kill_on_drop: false }`
[INFO] [stdout] 6255990cb92706cb4a5a67d5a418325c10dd2570a6c0cc145f50a3b0e3b02591
