[INFO] fetching crate stark 0.1.1...
[INFO] checking stark-0.1.1 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate stark 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate stark 0.1.1 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stark 0.1.1
[INFO] finished tweaking crates.io crate stark 0.1.1
[INFO] tweaked toml for crates.io crate stark 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate stark 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unic-common v0.9.0
[INFO] [stderr]   Downloaded getrandom v0.2.1
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded humansize v1.1.0
[INFO] [stderr]   Downloaded unic-ucd-version v0.9.0
[INFO] [stderr]   Downloaded thread_local v1.1.0
[INFO] [stderr]   Downloaded serde v1.0.119
[INFO] [stderr]   Downloaded ignore v0.4.17
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded unic-ucd-segment v0.9.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.8.0
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded unic-char-property v0.9.0
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] [stderr]   Downloaded tera v1.6.1
[INFO] [stderr]   Downloaded unic-char-range v0.9.0
[INFO] [stderr]   Downloaded chrono-tz v0.5.3
[INFO] [stderr]   Downloaded yaml-rust v0.4.5
[INFO] [stderr]   Downloaded unic-segment v0.9.0
[INFO] [stderr]   Downloaded rand v0.8.2
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded globwalk v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9177edb4fe1464f8f60ecd5fe77170c444816cc31501f4842e4d9fa24589eb7d
[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" "9177edb4fe1464f8f60ecd5fe77170c444816cc31501f4842e4d9fa24589eb7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9177edb4fe1464f8f60ecd5fe77170c444816cc31501f4842e4d9fa24589eb7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9177edb4fe1464f8f60ecd5fe77170c444816cc31501f4842e4d9fa24589eb7d", kill_on_drop: false }`
[INFO] [stdout] 9177edb4fe1464f8f60ecd5fe77170c444816cc31501f4842e4d9fa24589eb7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2263206d9917cfb3eeec5ef36433d15f430afce91cf56f9783169deddc75b2de
[INFO] running `Command { std: "docker" "start" "-a" "2263206d9917cfb3eeec5ef36433d15f430afce91cf56f9783169deddc75b2de", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]     Checking log v0.4.13
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking tera v1.6.1
[INFO] [stderr]     Checking stark v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]   --> src/front_matter.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn parse(text: &str) -> Result<Option<Yaml>, ScanError> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         self.render_posts();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         self.render_posts();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.56s
[INFO] running `Command { std: "docker" "inspect" "2263206d9917cfb3eeec5ef36433d15f430afce91cf56f9783169deddc75b2de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2263206d9917cfb3eeec5ef36433d15f430afce91cf56f9783169deddc75b2de", kill_on_drop: false }`
[INFO] [stdout] 2263206d9917cfb3eeec5ef36433d15f430afce91cf56f9783169deddc75b2de