[INFO] cloning repository https://github.com/DanielKeep/calendar-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DanielKeep/calendar-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielKeep%2Fcalendar-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielKeep%2Fcalendar-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 399f1b0fafac49df5e52a57b350a9c8b09ea046b
[INFO] checking DanielKeep/calendar-example against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielKeep%2Fcalendar-example" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DanielKeep/calendar-example on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DanielKeep/calendar-example
[INFO] finished tweaking git repo https://github.com/DanielKeep/calendar-example
[INFO] tweaked toml for git repo https://github.com/DanielKeep/calendar-example written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/DanielKeep/calendar-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.4.17
[INFO] [stderr]   Downloaded num-traits v0.1.34
[INFO] [stderr]   Downloaded num v0.1.34
[INFO] [stderr]   Downloaded libc v0.2.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6b3d54b796846b1f0b567aaef98b84999a790e4ca24a4108f50ff8908396ca6
[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" "e6b3d54b796846b1f0b567aaef98b84999a790e4ca24a4108f50ff8908396ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6b3d54b796846b1f0b567aaef98b84999a790e4ca24a4108f50ff8908396ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b3d54b796846b1f0b567aaef98b84999a790e4ca24a4108f50ff8908396ca6", kill_on_drop: false }`
[INFO] [stdout] e6b3d54b796846b1f0b567aaef98b84999a790e4ca24a4108f50ff8908396ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8a7794deb2be78105b05875e699396ad7bb5737d19c44de9ac2548d33d0b471
[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" "c8a7794deb2be78105b05875e699396ad7bb5737d19c44de9ac2548d33d0b471", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking num-traits v0.1.34
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking libc v0.2.15
[INFO] [stderr]     Checking itertools v0.4.17
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking num v0.1.34
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking calendar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
[INFO] [stdout]    --> bin.rs:386:23
[INFO] [stdout]     |
[INFO] [stdout] 386 | -> impl FnOnce(It) -> impl Iterator<Item=String>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
[INFO] [stdout]    --> bin.rs:456:57
[INFO] [stdout]     |
[INFO] [stdout] 456 | fn chunks<It: Iterator>(n: usize) -> impl FnOnce(It) -> impl Iterator<Item=Vec<It::Item>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
[INFO] [stdout]    --> bin.rs:386:23
[INFO] [stdout]     |
[INFO] [stdout] 386 | -> impl FnOnce(It) -> impl Iterator<Item=String>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
[INFO] [stdout]    --> bin.rs:456:57
[INFO] [stdout]     |
[INFO] [stdout] 456 | fn chunks<It: Iterator>(n: usize) -> impl FnOnce(It) -> impl Iterator<Item=Vec<It::Item>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> bin.rs:391:11
[INFO] [stdout]     |
[INFO] [stdout] 391 |     move |it| {
[INFO] [stdout]     |           ^^ consider giving this closure parameter a type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> bin.rs:391:11
[INFO] [stdout]     |
[INFO] [stdout] 391 |     move |it| {
[INFO] [stdout]     |           ^^ consider giving this closure parameter a type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> bin.rs:466:11
[INFO] [stdout]     |
[INFO] [stdout] 466 |     move |mut it| {
[INFO] [stdout]     |           ^^^^^^ consider giving this closure parameter a type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> bin.rs:506:15
[INFO] [stdout]     |
[INFO] [stdout] 506 |         .map(|r| r.into_iter()
[INFO] [stdout]     |               ^ consider giving this closure parameter a type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0562.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `calendar`
[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[E0282]: type annotations needed
[INFO] [stdout]    --> bin.rs:466:11
[INFO] [stdout]     |
[INFO] [stdout] 466 |     move |mut it| {
[INFO] [stdout]     |           ^^^^^^ consider giving this closure parameter a type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> bin.rs:506:15
[INFO] [stdout]     |
[INFO] [stdout] 506 |         .map(|r| r.into_iter()
[INFO] [stdout]     |               ^ consider giving this closure parameter a type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0562.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c8a7794deb2be78105b05875e699396ad7bb5737d19c44de9ac2548d33d0b471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a7794deb2be78105b05875e699396ad7bb5737d19c44de9ac2548d33d0b471", kill_on_drop: false }`
[INFO] [stdout] c8a7794deb2be78105b05875e699396ad7bb5737d19c44de9ac2548d33d0b471