[INFO] crate chrono 0.4.10 is already in cache
[INFO] checking chrono-0.4.10 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate chrono 0.4.10 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate chrono 0.4.10 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate chrono 0.4.10
[INFO] finished tweaking crates.io crate chrono 0.4.10
[INFO] tweaked toml for crates.io crate chrono 0.4.10 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] 32fa373882a937ae39dc9abbb73853fdec679db156f17459aba69fc7cffd42f9
[INFO] running `"docker" "start" "-a" "32fa373882a937ae39dc9abbb73853fdec679db156f17459aba69fc7cffd42f9"`
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking serde_json v1.0.46
[INFO] [stderr]     Checking bincode v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking chrono v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected item, found `"serde_json requires that either `std` (default) or `alloc` feature is enabled"`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.46/src/features_check/error.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | "serde_json requires that either `std` (default) or `alloc` feature is enabled"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected item
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `serde_json`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/format/parsed.rs:348:13
[INFO] [stderr]     |
[INFO] [stderr] 348 | /             (self.year.unwrap_or(year) == year &&
[INFO] [stderr] 349 | |              self.year_div_100.or(year_div_100) == year_div_100 &&
[INFO] [stderr] 350 | |              self.year_mod_100.or(year_mod_100) == year_mod_100 &&
[INFO] [stderr] 351 | |              self.month.unwrap_or(month) == month &&
[INFO] [stderr] 352 | |              self.day.unwrap_or(day) == day)
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 348 |             self.year.unwrap_or(year) == year &&
[INFO] [stderr] 349 |              self.year_div_100.or(year_div_100) == year_div_100 &&
[INFO] [stderr] 350 |              self.year_mod_100.or(year_mod_100) == year_mod_100 &&
[INFO] [stderr] 351 |              self.month.unwrap_or(month) == month &&
[INFO] [stderr] 352 |              self.day.unwrap_or(day) == day
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/format/parsed.rs:367:13
[INFO] [stderr]     |
[INFO] [stderr] 367 | /             (self.isoyear.unwrap_or(isoyear) == isoyear &&
[INFO] [stderr] 368 | |              self.isoyear_div_100.or(isoyear_div_100) == isoyear_div_100 &&
[INFO] [stderr] 369 | |              self.isoyear_mod_100.or(isoyear_mod_100) == isoyear_mod_100 &&
[INFO] [stderr] 370 | |              self.isoweek.unwrap_or(isoweek) == isoweek &&
[INFO] [stderr] 371 | |              self.weekday.unwrap_or(weekday) == weekday)
[INFO] [stderr]     | |________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 367 |             self.isoyear.unwrap_or(isoyear) == isoyear &&
[INFO] [stderr] 368 |              self.isoyear_div_100.or(isoyear_div_100) == isoyear_div_100 &&
[INFO] [stderr] 369 |              self.isoyear_mod_100.or(isoyear_mod_100) == isoyear_mod_100 &&
[INFO] [stderr] 370 |              self.isoweek.unwrap_or(isoweek) == isoweek &&
[INFO] [stderr] 371 |              self.weekday.unwrap_or(weekday) == weekday
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/format/parsed.rs:380:13
[INFO] [stderr]     |
[INFO] [stderr] 380 | /             (self.ordinal.unwrap_or(ordinal) == ordinal &&
[INFO] [stderr] 381 | |              self.week_from_sun.map_or(week_from_sun, |v| v as i32) == week_from_sun &&
[INFO] [stderr] 382 | |              self.week_from_mon.map_or(week_from_mon, |v| v as i32) == week_from_mon)
[INFO] [stderr]     | |_____________________________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 380 |             self.ordinal.unwrap_or(ordinal) == ordinal &&
[INFO] [stderr] 381 |              self.week_from_sun.map_or(week_from_sun, |v| v as i32) == week_from_sun &&
[INFO] [stderr] 382 |              self.week_from_mon.map_or(week_from_mon, |v| v as i32) == week_from_mon
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "32fa373882a937ae39dc9abbb73853fdec679db156f17459aba69fc7cffd42f9"`
[INFO] running `"docker" "rm" "-f" "32fa373882a937ae39dc9abbb73853fdec679db156f17459aba69fc7cffd42f9"`
[INFO] [stdout] 32fa373882a937ae39dc9abbb73853fdec679db156f17459aba69fc7cffd42f9