[INFO] fetching crate cron-lingo 0.4.2...
[INFO] checking cron-lingo-0.4.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate cron-lingo 0.4.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cron-lingo 0.4.2
[INFO] finished tweaking crates.io crate cron-lingo 0.4.2
[INFO] tweaked toml for crates.io crate cron-lingo 0.4.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cron-lingo 0.4.2 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9422da6dbcfe94585b087e533dcbaa2c6e06bff14386aa9ef7a79dc38f954aa
[INFO] running `Command { std: "docker" "start" "-a" "f9422da6dbcfe94585b087e533dcbaa2c6e06bff14386aa9ef7a79dc38f954aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9422da6dbcfe94585b087e533dcbaa2c6e06bff14386aa9ef7a79dc38f954aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9422da6dbcfe94585b087e533dcbaa2c6e06bff14386aa9ef7a79dc38f954aa", kill_on_drop: false }`
[INFO] [stdout] f9422da6dbcfe94585b087e533dcbaa2c6e06bff14386aa9ef7a79dc38f954aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fcada5a88dfdef6e7688c6f9d066c346d60086cb425dc0e925c1a902d091a59
[INFO] running `Command { std: "docker" "start" "-a" "1fcada5a88dfdef6e7688c6f9d066c346d60086cb425dc0e925c1a902d091a59", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]     Checking cron-lingo v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/schedule.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn iter(&self) -> Result<MultiScheduleIter, Error> {
[INFO] [stdout]     |                 ^^^^^            ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn iter(&self) -> Result<MultiScheduleIter<'_>, Error> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/schedule.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn iter(&self) -> Result<MultiScheduleIter, Error> {
[INFO] [stdout]     |                 ^^^^^            ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn iter(&self) -> Result<MultiScheduleIter<'_>, Error> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.18s
[INFO] running `Command { std: "docker" "inspect" "1fcada5a88dfdef6e7688c6f9d066c346d60086cb425dc0e925c1a902d091a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fcada5a88dfdef6e7688c6f9d066c346d60086cb425dc0e925c1a902d091a59", kill_on_drop: false }`
[INFO] [stdout] 1fcada5a88dfdef6e7688c6f9d066c346d60086cb425dc0e925c1a902d091a59