[INFO] fetching crate rrule 0.2.3...
[INFO] checking rrule-0.2.3 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate rrule 0.2.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rrule 0.2.3 on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rrule 0.2.3
[INFO] finished tweaking crates.io crate rrule 0.2.3
[INFO] tweaked toml for crates.io crate rrule 0.2.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4082e3571fb75124a0d715a4cff0b7256d0378806feecf800a054eadd4dddc2
[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" "a4082e3571fb75124a0d715a4cff0b7256d0378806feecf800a054eadd4dddc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4082e3571fb75124a0d715a4cff0b7256d0378806feecf800a054eadd4dddc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4082e3571fb75124a0d715a4cff0b7256d0378806feecf800a054eadd4dddc2", kill_on_drop: false }`
[INFO] [stdout] a4082e3571fb75124a0d715a4cff0b7256d0378806feecf800a054eadd4dddc2
[INFO] running `Command { std: "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" "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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec4c8d9499e51a39214e8f102be2249f8e82904290f674ac14114ffc92e80853
[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" "ec4c8d9499e51a39214e8f102be2249f8e82904290f674ac14114ffc92e80853", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]     Checking rrule v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::poslist::*`
[INFO] [stdout]  --> src/iter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::poslist::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::poslist::*`
[INFO] [stdout]  --> src/iter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::poslist::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::rrule::*`
[INFO] [stdout]  --> src/iter_set.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::rrule::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::rrule::*`
[INFO] [stdout]  --> src/iter_set.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::rrule::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/iter_set.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::{DateTime, Duration, Utc};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/iter_set.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::Tz`
[INFO] [stdout]  --> src/rrulestr.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use chrono_tz::Tz;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UTC`
[INFO] [stdout]  --> src/rrule.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono_tz::{Tz, UTC};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/iter_set.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chrono::{DateTime, Duration, Utc};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/iter_set.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::Tz`
[INFO] [stdout]  --> src/rrulestr.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use chrono_tz::Tz;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UTC`
[INFO] [stdout]  --> src/rrule.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono_tz::{Tz, UTC};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::options::*`
[INFO] [stdout]  --> src/rruleset.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::options::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bymonth`
[INFO] [stdout]   --> src/parse_options.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 if let Some(bymonth) = partial_options.bymonth {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bymonth`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rrule`
[INFO] [stdout]    --> src/rruleset.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |         for rrule in &self.rrule {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_rrule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exrule`
[INFO] [stdout]    --> src/rruleset.rs:249:13
[INFO] [stdout]     |
[INFO] [stdout] 249 |         for exrule in &self.exrule {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_exrule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bymonth`
[INFO] [stdout]   --> src/parse_options.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 if let Some(bymonth) = partial_options.bymonth {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bymonth`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rrule`
[INFO] [stdout]    --> src/rruleset.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |         for rrule in &self.rrule {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_rrule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exrule`
[INFO] [stdout]    --> src/rruleset.rs:249:13
[INFO] [stdout]     |
[INFO] [stdout] 249 |         for exrule in &self.exrule {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_exrule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lastyear`
[INFO] [stdout]   --> src/iterinfo.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn lastyear(&self) -> Option<isize> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lastmonth`
[INFO] [stdout]   --> src/iterinfo.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn lastmonth(&self) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `RRUle_RE` should have an upper case name
[INFO] [stdout]   --> src/rrulestr.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | static RRUle_RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"(?m)^(?:RRULE|EXRULE):").unwrap());
[INFO] [stdout]    |        ^^^^^^^^ help: convert the identifier to upper case: `RRULE_RE`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lastyear`
[INFO] [stdout]   --> src/iterinfo.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn lastyear(&self) -> Option<isize> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lastmonth`
[INFO] [stdout]   --> src/iterinfo.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn lastmonth(&self) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `RRUle_RE` should have an upper case name
[INFO] [stdout]   --> src/rrulestr.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | static RRUle_RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"(?m)^(?:RRULE|EXRULE):").unwrap());
[INFO] [stdout]    |        ^^^^^^^^ help: convert the identifier to upper case: `RRULE_RE`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::UTC`
[INFO] [stdout]  --> tests/rrule.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use chrono_tz::UTC;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.31s
[INFO] running `Command { std: "docker" "inspect" "ec4c8d9499e51a39214e8f102be2249f8e82904290f674ac14114ffc92e80853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4c8d9499e51a39214e8f102be2249f8e82904290f674ac14114ffc92e80853", kill_on_drop: false }`
[INFO] [stdout] ec4c8d9499e51a39214e8f102be2249f8e82904290f674ac14114ffc92e80853