[INFO] cloning repository https://github.com/hsmtkk/automatic-pancake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsmtkk/automatic-pancake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fautomatic-pancake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fautomatic-pancake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 531df612296be3f9fd0881942e8acdf977b8abcd
[INFO] checking hsmtkk/automatic-pancake against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fautomatic-pancake" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hsmtkk/automatic-pancake 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/hsmtkk/automatic-pancake
[INFO] finished tweaking git repo https://github.com/hsmtkk/automatic-pancake
[INFO] tweaked toml for git repo https://github.com/hsmtkk/automatic-pancake written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hsmtkk/automatic-pancake 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bc0e5f8662ea3698031227e52ecf9a57c2471cfa3c74f68a9d370c660b135da9
[INFO] running `Command { std: "docker" "start" "-a" "bc0e5f8662ea3698031227e52ecf9a57c2471cfa3c74f68a9d370c660b135da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc0e5f8662ea3698031227e52ecf9a57c2471cfa3c74f68a9d370c660b135da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0e5f8662ea3698031227e52ecf9a57c2471cfa3c74f68a9d370c660b135da9", kill_on_drop: false }`
[INFO] [stdout] bc0e5f8662ea3698031227e52ecf9a57c2471cfa3c74f68a9d370c660b135da9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6d04277a105f36cc01e146646c2d6249b12a5a8b8c7fdb82f3e55df6c20afe3f
[INFO] running `Command { std: "docker" "start" "-a" "6d04277a105f36cc01e146646c2d6249b12a5a8b8c7fdb82f3e55df6c20afe3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking weezl v0.1.6
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.56
[INFO] [stderr]     Checking lebe v0.5.1
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking http-range-header v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking matchit v0.5.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking sync_wrapper v0.1.1
[INFO] [stderr]     Checking maze v0.1.0 (/opt/rustwide/workdir/maze)
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking bingo_card v0.1.0 (/opt/rustwide/workdir/bingo_card)
[INFO] [stderr]     Checking dice v0.1.0 (/opt/rustwide/workdir/dice)
[INFO] [stderr]     Checking question v0.1.0 (/opt/rustwide/workdir/question)
[INFO] [stderr]     Checking automatic-pancake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bmi v0.1.0 (/opt/rustwide/workdir/bmi)
[INFO] [stderr]     Checking file_search v0.1.0 (/opt/rustwide/workdir/file_search)
[INFO] [stderr]     Checking fibonacci_iterator v0.1.0 (/opt/rustwide/workdir/fibonacci_iterator)
[INFO] [stderr]     Checking sum_args v0.1.0 (/opt/rustwide/workdir/sum_args)
[INFO] [stderr]     Checking prime_iterator v0.1.0 (/opt/rustwide/workdir/prime_iterator)
[INFO] [stderr]     Checking eiwa v0.1.0 (/opt/rustwide/workdir/eiwa)
[INFO] [stderr]     Checking single_list v0.1.0 (/opt/rustwide/workdir/single_list)
[INFO] [stderr]     Checking jpeg-decoder v0.2.6
[INFO] [stdout] warning: struct `Translator` is never constructed
[INFO] [stdout]   --> eiwa/src/main.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Translator {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `translate` are never used
[INFO] [stdout]   --> eiwa/src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Translator {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 15 |     fn new() -> Translator {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn translate(&self, en:&str) -> Result<String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> single_list/src/slist.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Node {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 2 |     data: isize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> single_list/src/slist.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl List {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get(&self, index: isize) -> Option<isize> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking tiff v0.7.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking axum-core v0.2.6
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking flume v0.10.13
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking exr v1.4.2
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking tower-http v0.3.4
[INFO] [stderr]     Checking image v0.24.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking axum v0.5.9
[INFO] [stderr]     Checking itimatu v0.1.0 (/opt/rustwide/workdir/itimatu)
[INFO] [stderr]     Checking thumb v0.1.0 (/opt/rustwide/workdir/thumb)
[INFO] [stderr]     Checking web_bmi v0.1.0 (/opt/rustwide/workdir/web_bmi)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.25s
[INFO] running `Command { std: "docker" "inspect" "6d04277a105f36cc01e146646c2d6249b12a5a8b8c7fdb82f3e55df6c20afe3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d04277a105f36cc01e146646c2d6249b12a5a8b8c7fdb82f3e55df6c20afe3f", kill_on_drop: false }`
[INFO] [stdout] 6d04277a105f36cc01e146646c2d6249b12a5a8b8c7fdb82f3e55df6c20afe3f