[INFO] cloning repository https://github.com/vasily-kirichenko/maps_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vasily-kirichenko/maps_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Fmaps_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Fmaps_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b87aceb229e8711bdf80a90724414422fff23e0
[INFO] checking vasily-kirichenko/maps_test against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Fmaps_test" "/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/vasily-kirichenko/maps_test on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vasily-kirichenko/maps_test
[INFO] finished tweaking git repo https://github.com/vasily-kirichenko/maps_test
[INFO] tweaked toml for git repo https://github.com/vasily-kirichenko/maps_test written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/vasily-kirichenko/maps_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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[INFO] the lockfile is outdated, regenerating it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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9409291c2f5ddec2d6d05ee90602d2b0b288da1674638170c8769fd59c6b7a7e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9409291c2f5ddec2d6d05ee90602d2b0b288da1674638170c8769fd59c6b7a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9409291c2f5ddec2d6d05ee90602d2b0b288da1674638170c8769fd59c6b7a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9409291c2f5ddec2d6d05ee90602d2b0b288da1674638170c8769fd59c6b7a7e", kill_on_drop: false }`
[INFO] [stdout] 9409291c2f5ddec2d6d05ee90602d2b0b288da1674638170c8769fd59c6b7a7e
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46b6fbfceb2952858a812dabda96200df3545c9be91791d1c3e97ff840ed4551
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "46b6fbfceb2952858a812dabda96200df3545c9be91791d1c3e97ff840ed4551", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.43
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking maps_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let start = time::PreciseTime::now();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning 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 type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:15:51
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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 type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let start = time::PreciseTime::now();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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 type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:15:51
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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/utils.rs:15:48
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                  ^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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 type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let start = time::PreciseTime::now();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning 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 type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:15:51
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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 type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let start = time::PreciseTime::now();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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 type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> src/utils.rs:15:51
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning 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/utils.rs:15:48
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                  ^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/utils.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[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/utils.rs:15:48
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                  ^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/utils.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[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 2 previous errors; 6 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 `maps_test`
[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/utils.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     time!("Insertion", {
[INFO] [stdout] 21 | |         for x in source.iter().cloned() {
[INFO] [stdout] 22 | |             m.entry(x).or_insert(0);
[INFO] [stdout] 23 | |         }
[INFO] [stdout] 24 | |     });
[INFO] [stdout]    | |_______- in this macro invocation
[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/utils.rs:15:48
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                                  ^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `time::Duration` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/utils.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 |         println!("{}: {} elapsed.", $name, start.to(time::PreciseTime::now()))
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `time::Duration` cannot be formatted with the default formatter
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     time!("Lookup", {
[INFO] [stdout] 27 | |         let mut _acc = 0;
[INFO] [stdout] 28 | |         for x in source.iter() {
[INFO] [stdout] 29 | |             if let Some(x) = m.get(x) {
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |         }
[INFO] [stdout] 33 | |     })
[INFO] [stdout]    | |______- in this macro invocation
[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 2 previous errors; 6 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" "46b6fbfceb2952858a812dabda96200df3545c9be91791d1c3e97ff840ed4551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46b6fbfceb2952858a812dabda96200df3545c9be91791d1c3e97ff840ed4551", kill_on_drop: false }`
[INFO] [stdout] 46b6fbfceb2952858a812dabda96200df3545c9be91791d1c3e97ff840ed4551