[INFO] updating cached repository https://github.com/matthiasbeyer/libical
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 12643f9d8be002c501f102859cc5d40c218c2eb3
[INFO] checking matthiasbeyer/libical against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiasbeyer%2Flibical" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matthiasbeyer/libical on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/matthiasbeyer/libical
[INFO] finished tweaking git repo https://github.com/matthiasbeyer/libical
[INFO] tweaked toml for git repo https://github.com/matthiasbeyer/libical written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 3821f3843c5f2bd0fd49d894b6baa4cfd2784f32c0478dae90c2e4343e262ffb
[INFO] running `"docker" "start" "-a" "3821f3843c5f2bd0fd49d894b6baa4cfd2784f32c0478dae90c2e4343e262ffb"`
[INFO] [stderr]    Compiling bindgen v0.43.2
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking predicates v1.0.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking ignore v0.4.11
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking globwalk v0.7.1
[INFO] [stderr]     Checking assert_fs v0.13.1
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]    Compiling libical-sys v0.1.3
[INFO] [stderr]     Checking libical v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `date_from_str`
[INFO] [stderr]  --> src/utils/dateutil.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn date_from_str(date_str: &str) -> ParseResult<Date<Local>> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `datetime_from_str`
[INFO] [stderr]   --> src/utils/dateutil.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn datetime_from_str(datetime_str: &str) -> ParseResult<DateTime<Local>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `week_from_str_begin`
[INFO] [stderr]   --> src/utils/dateutil.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn week_from_str_begin(date_str: &str) -> Result<Date<Local>, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `week_from_str_end`
[INFO] [stderr]   --> src/utils/dateutil.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn week_from_str_end(date_str: &str) -> Result<Date<Local>, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lock_file_exclusive`
[INFO] [stderr]   --> src/utils/lock.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn lock_file_exclusive(path: &Path) -> io::Result<FileLock> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `joinlines`
[INFO] [stderr]  --> src/utils/misc.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn joinlines(first: &str, second: &str) -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `format_duration`
[INFO] [stderr]   --> src/utils/misc.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn format_duration(duration: &time::Duration) -> impl Display {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `datetime_from_str`
[INFO] [stderr]   --> src/utils/dateutil.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn datetime_from_str(datetime_str: &str) -> ParseResult<DateTime<Local>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.81s
[INFO] running `"docker" "inspect" "3821f3843c5f2bd0fd49d894b6baa4cfd2784f32c0478dae90c2e4343e262ffb"`
[INFO] running `"docker" "rm" "-f" "3821f3843c5f2bd0fd49d894b6baa4cfd2784f32c0478dae90c2e4343e262ffb"`
[INFO] [stdout] 3821f3843c5f2bd0fd49d894b6baa4cfd2784f32c0478dae90c2e4343e262ffb