[INFO] cloning repository https://github.com/mishazawa/cycle-hls
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mishazawa/cycle-hls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmishazawa%2Fcycle-hls", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmishazawa%2Fcycle-hls'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7be24182c8fb1d57cc632fd53f366497f07e9730
[INFO] checking mishazawa/cycle-hls against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmishazawa%2Fcycle-hls" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mishazawa/cycle-hls on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mishazawa/cycle-hls
[INFO] finished tweaking git repo https://github.com/mishazawa/cycle-hls
[INFO] tweaked toml for git repo https://github.com/mishazawa/cycle-hls written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mishazawa/cycle-hls already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.7
[INFO] [stderr]   Downloaded futures v0.1.28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74bc577ebb0722ab61112ca8ef16a55ebbfe3305cc31445328d94c89b6900b7c
[INFO] running `Command { std: "docker" "start" "-a" "74bc577ebb0722ab61112ca8ef16a55ebbfe3305cc31445328d94c89b6900b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74bc577ebb0722ab61112ca8ef16a55ebbfe3305cc31445328d94c89b6900b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74bc577ebb0722ab61112ca8ef16a55ebbfe3305cc31445328d94c89b6900b7c", kill_on_drop: false }`
[INFO] [stdout] 74bc577ebb0722ab61112ca8ef16a55ebbfe3305cc31445328d94c89b6900b7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3293f46377bf6b7067b04680c720d74cb142f9020157d53dd1499ba31884985f
[INFO] running `Command { std: "docker" "start" "-a" "3293f46377bf6b7067b04680c720d74cb142f9020157d53dd1499ba31884985f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking futures v0.1.28
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking cycle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/main.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn generate_playlist (path: &Path, tmp_path: &Path) {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/main.rs:27:23
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn generate_playlist (path: &Path, tmp_path: &Path) {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PATH_LEN_THRESHOLD` is never used
[INFO] [stdout]  --> src/main.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const PATH_LEN_THRESHOLD: usize = 8;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dash` is never used
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn dash (target: &str) -> Result<Child, Error> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_segment_duration` is never used
[INFO] [stdout]   --> src/main.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn get_segment_duration (path: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PATH_LEN_THRESHOLD` is never used
[INFO] [stdout]  --> src/main.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const PATH_LEN_THRESHOLD: usize = 8;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dash` is never used
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn dash (target: &str) -> Result<Child, Error> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_segment_duration` is never used
[INFO] [stdout]   --> src/main.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn get_segment_duration (path: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "3293f46377bf6b7067b04680c720d74cb142f9020157d53dd1499ba31884985f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3293f46377bf6b7067b04680c720d74cb142f9020157d53dd1499ba31884985f", kill_on_drop: false }`
[INFO] [stdout] 3293f46377bf6b7067b04680c720d74cb142f9020157d53dd1499ba31884985f