[INFO] cloning repository https://github.com/madadam/calendar.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/madadam/calendar.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadadam%2Fcalendar.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadadam%2Fcalendar.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1feae481e779aba72c2232734be7470e14178ac0
[INFO] testing madadam/calendar.rs against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadadam%2Fcalendar.rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/madadam/calendar.rs on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/madadam/calendar.rs
[INFO] finished tweaking git repo https://github.com/madadam/calendar.rs
[INFO] tweaked toml for git repo https://github.com/madadam/calendar.rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/madadam/calendar.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/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[INFO] the lockfile is outdated, regenerating it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" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a100edf52c156c8e39db4ba70a196fb76563282517984c80103e6868a81c221b
[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" "a100edf52c156c8e39db4ba70a196fb76563282517984c80103e6868a81c221b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a100edf52c156c8e39db4ba70a196fb76563282517984c80103e6868a81c221b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a100edf52c156c8e39db4ba70a196fb76563282517984c80103e6868a81c221b", kill_on_drop: false }`
[INFO] [stdout] a100edf52c156c8e39db4ba70a196fb76563282517984c80103e6868a81c221b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c63ecbc9064fb1947a8b68a63917d2499929a484c229ee29dad6e06b251231e8
[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" "c63ecbc9064fb1947a8b68a63917d2499929a484c229ee29dad6e06b251231e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling calendar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: private type `advanced_iterator::Chunk<Self>` in public interface (error E0446)
[INFO] [stdout]   --> src/advanced_iterator.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     fn chunk(self, size: usize) -> Chunk<Self>
[INFO] [stdout] 12 | |         where Self: Sized
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `advanced_iterator::Interleave<<Self as std::iter::Iterator>::Item>` in public interface (error E0446)
[INFO] [stdout]   --> src/advanced_iterator.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     fn interleave(self) -> Interleave<Self::Item>
[INFO] [stdout] 20 | |         where Self: Sized, Self::Item: Iterator
[INFO] [stdout]    | |_______________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `advanced_iterator::Chunk<advanced_iterator::Interleave<<Self as std::iter::Iterator>::Item>>` in public interface (error E0446)
[INFO] [stdout]   --> src/advanced_iterator.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     fn transpose(self) -> Chunk<Interleave<Self::Item>>
[INFO] [stdout] 31 | |         where Self: Sized + ExactSizeIterator, Self::Item: Iterator
[INFO] [stdout]    | |___________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `advanced_iterator::Interleave<<Self as std::iter::Iterator>::Item>` in public interface (error E0446)
[INFO] [stdout]   --> src/advanced_iterator.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     fn transpose(self) -> Chunk<Interleave<Self::Item>>
[INFO] [stdout] 31 | |         where Self: Sized + ExactSizeIterator, Self::Item: Iterator
[INFO] [stdout]    | |___________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `advanced_iterator::ChainAll<Self>` in public interface (error E0446)
[INFO] [stdout]   --> src/advanced_iterator.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     fn chain_all(self) -> ChainAll<Self>
[INFO] [stdout] 40 | |         where Self: Sized, Self::Item: Iterator
[INFO] [stdout]    | |_______________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` in public interface (error E0446)
[INFO] [stdout]   --> src/date.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn by_month(self) -> ByMonth {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` in public interface (error E0446)
[INFO] [stdout]   --> src/date.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn by_week(self) -> ByWeek {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` in public interface (error E0446)
[INFO] [stdout]   --> src/date.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub type ByMonth = GroupBy<fn(&Date) -> u32>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` in public interface (error E0446)
[INFO] [stdout]   --> src/date.rs:72:1
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub type ByWeek  = GroupBy<fn(&Date) -> u32>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` in public interface (error E0446)
[INFO] [stdout]   --> src/format.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / pub type MonthLayout =
[INFO] [stdout] 9  | |     Chain<
[INFO] [stdout] 10 | |         Once<String>,
[INFO] [stdout] 11 | |         Chain<
[INFO] [stdout] 12 | |             Map<ByWeek, FnFormatWeek>,
[INFO] [stdout] 13 | |             Take<Repeat<String>>>>;
[INFO] [stdout]    | |___________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` in public interface (error E0446)
[INFO] [stdout]   --> src/format.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn layout_month(month: DateRange) -> MonthLayout {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `advanced_iterator::ChainAll<std::iter::Map<advanced_iterator::Chunk<std::iter::Map<date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>, fn(date::DateRange) -> std::iter::Chain<std::iter::Once<std::string::String>, std::iter::Chain<std::iter::Map<date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>, fn(date::DateRange) -> std::string::String>, std::iter::Take<std::iter::Repeat<std::string::String>>>> {format::layout_month}>>, [closure@src/main.rs:40:24: 40:41]>>` is private
[INFO] [stdout]   --> src/main.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |       let calendar = dates(args.arg_year)
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 37 | |                   .by_month()
[INFO] [stdout] 38 | |                   .map(layout_month)
[INFO] [stdout] 39 | |                   .chunk(args.flag_months_per_line)
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |                   .map(|c| c.collect::<String>())
[INFO] [stdout] 43 | |                   .join("\n");
[INFO] [stdout]    | |_____________________________^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` is private
[INFO] [stdout]   --> src/format.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | /     Chain<
[INFO] [stdout] 10 | |         Once<String>,
[INFO] [stdout] 11 | |         Chain<
[INFO] [stdout] 12 | |             Map<ByWeek, FnFormatWeek>,
[INFO] [stdout] 13 | |             Take<Repeat<String>>>>;
[INFO] [stdout]    | |__________________________________^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` is private
[INFO] [stdout]   --> src/format.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn layout_month(month: DateRange) -> MonthLayout {
[INFO] [stdout]    |                                          ^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `date::GroupBy<for<'r> fn(&'r chrono::Date<chrono::UTC>) -> u32>` is private
[INFO] [stdout]   --> src/format.rs:15:54
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn layout_month(month: DateRange) -> MonthLayout {
[INFO] [stdout]    |  ______________________________________________________^
[INFO] [stdout] 16 | |     let week_count   = month.by_week().count();
[INFO] [stdout] 17 | |     let title        = once(month_title(month.start));
[INFO] [stdout] 18 | |     let padding_item = repeat(" ").take(22).collect::<String>();
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     title.chain(month.by_week().map(format_week as FnFormatWeek).chain(padding))
[INFO] [stdout] 22 | | }
[INFO] [stdout]    | |_^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `calendar`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c63ecbc9064fb1947a8b68a63917d2499929a484c229ee29dad6e06b251231e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c63ecbc9064fb1947a8b68a63917d2499929a484c229ee29dad6e06b251231e8", kill_on_drop: false }`
[INFO] [stdout] c63ecbc9064fb1947a8b68a63917d2499929a484c229ee29dad6e06b251231e8
