[INFO] cloning repository https://github.com/styladev/lfu-fast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/styladev/lfu-fast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstyladev%2Flfu-fast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstyladev%2Flfu-fast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a7191c8754ed065c273601fb60ab5f3b2d1b2b4
[INFO] checking styladev/lfu-fast against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstyladev%2Flfu-fast" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/styladev/lfu-fast on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/styladev/lfu-fast
[INFO] finished tweaking git repo https://github.com/styladev/lfu-fast
[INFO] tweaked toml for git repo https://github.com/styladev/lfu-fast written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/styladev/lfu-fast 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1541c9cca5d7912b6135c1d870b0effc7b6a2f6d92a4f6916efdde8ab6f50ccc
[INFO] running `Command { std: "docker" "start" "-a" "1541c9cca5d7912b6135c1d870b0effc7b6a2f6d92a4f6916efdde8ab6f50ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1541c9cca5d7912b6135c1d870b0effc7b6a2f6d92a4f6916efdde8ab6f50ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1541c9cca5d7912b6135c1d870b0effc7b6a2f6d92a4f6916efdde8ab6f50ccc", kill_on_drop: false }`
[INFO] [stdout] 1541c9cca5d7912b6135c1d870b0effc7b6a2f6d92a4f6916efdde8ab6f50ccc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c5ffbf6668a12a11b6d8573699298c621110caae855fb97d12e9aaf8eca10de
[INFO] running `Command { std: "docker" "start" "-a" "1c5ffbf6668a12a11b6d8573699298c621110caae855fb97d12e9aaf8eca10de", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.74
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v3.2.0
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]     Checking lfu v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::iter::repeat`
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::iter::repeat;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::iter::repeat`
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::iter::repeat;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `heap`, `indices`, `max_size`, and `num_items` are never read
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct LfuInner<T> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 22 |     heap: Vec<(T, usize)>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     indices: HashMap<T, usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     max_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     num_items: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, `refer`, `insert`, `increment`, and `heapify` are never used
[INFO] [stdout]    --> src/lib.rs:30:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl<T: Clone + Hash + Eq + Ord> LfuInner<T> {
[INFO] [stdout]     | -------------------------------------------- associated items in this implementation
[INFO] [stdout] 30  |     fn new(capacity: usize) -> LfuInner<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 40  |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47  |     pub fn refer(&mut self, val: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65  |     fn insert(&mut self, val: &T) -> Option<T> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn increment(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     fn heapify(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lfu` is never read
[INFO] [stdout]    --> src/lib.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 205 | struct Lfu {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] 206 |     lfu: LfuInner<String>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, and `refer` are never used
[INFO] [stdout]    --> src/lib.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl Lfu {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 211 |     #[wasm_bindgen(constructor)]
[INFO] [stdout] 212 |     pub fn new(capacity: u32) -> Lfu {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn refer(&mut self, val: String) -> Option<String> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `heap`, `indices`, `max_size`, and `num_items` are never read
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct LfuInner<T> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 22 |     heap: Vec<(T, usize)>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     indices: HashMap<T, usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     max_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     num_items: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, `refer`, `insert`, `increment`, and `heapify` are never used
[INFO] [stdout]    --> src/lib.rs:30:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl<T: Clone + Hash + Eq + Ord> LfuInner<T> {
[INFO] [stdout]     | -------------------------------------------- associated items in this implementation
[INFO] [stdout] 30  |     fn new(capacity: usize) -> LfuInner<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 40  |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47  |     pub fn refer(&mut self, val: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65  |     fn insert(&mut self, val: &T) -> Option<T> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn increment(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     fn heapify(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lfu` is never read
[INFO] [stdout]    --> src/lib.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 205 | struct Lfu {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] 206 |     lfu: LfuInner<String>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, and `refer` are never used
[INFO] [stdout]    --> src/lib.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl Lfu {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 211 |     #[wasm_bindgen(constructor)]
[INFO] [stdout] 212 |     pub fn new(capacity: u32) -> Lfu {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn refer(&mut self, val: String) -> Option<String> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.42s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.74
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "1c5ffbf6668a12a11b6d8573699298c621110caae855fb97d12e9aaf8eca10de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c5ffbf6668a12a11b6d8573699298c621110caae855fb97d12e9aaf8eca10de", kill_on_drop: false }`
[INFO] [stdout] 1c5ffbf6668a12a11b6d8573699298c621110caae855fb97d12e9aaf8eca10de
[INFO] checking styladev/lfu-fast against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstyladev%2Flfu-fast" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/styladev/lfu-fast on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/styladev/lfu-fast
[INFO] finished tweaking git repo https://github.com/styladev/lfu-fast
[INFO] tweaked toml for git repo https://github.com/styladev/lfu-fast written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/styladev/lfu-fast 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84309fa056213c6ab51c82c2c0128b62060635f2392baf83c3b1d9fcc414444f
[INFO] running `Command { std: "docker" "start" "-a" "84309fa056213c6ab51c82c2c0128b62060635f2392baf83c3b1d9fcc414444f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84309fa056213c6ab51c82c2c0128b62060635f2392baf83c3b1d9fcc414444f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84309fa056213c6ab51c82c2c0128b62060635f2392baf83c3b1d9fcc414444f", kill_on_drop: false }`
[INFO] [stdout] 84309fa056213c6ab51c82c2c0128b62060635f2392baf83c3b1d9fcc414444f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d2512ccfee8daa7c7ee66bf00b54311a72c9e42b49163aaa0031c5ab824b41b
[INFO] running `Command { std: "docker" "start" "-a" "7d2512ccfee8daa7c7ee66bf00b54311a72c9e42b49163aaa0031c5ab824b41b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.74
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bumpalo v3.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]     Checking lfu v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::iter::repeat`
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::iter::repeat;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |                             ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::iter::repeat`
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::iter::repeat;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `heap`, `indices`, `max_size`, and `num_items` are never read
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct LfuInner<T> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 22 |     heap: Vec<(T, usize)>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     indices: HashMap<T, usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     max_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     num_items: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, `refer`, `insert`, `increment`, and `heapify` are never used
[INFO] [stdout]    --> src/lib.rs:30:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl<T: Clone + Hash + Eq + Ord> LfuInner<T> {
[INFO] [stdout]     | -------------------------------------------- associated items in this implementation
[INFO] [stdout] 30  |     fn new(capacity: usize) -> LfuInner<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 40  |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47  |     pub fn refer(&mut self, val: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65  |     fn insert(&mut self, val: &T) -> Option<T> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn increment(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     fn heapify(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lfu` is never read
[INFO] [stdout]    --> src/lib.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 205 | struct Lfu {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] 206 |     lfu: LfuInner<String>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, and `refer` are never used
[INFO] [stdout]    --> src/lib.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl Lfu {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 211 |     #[wasm_bindgen(constructor)]
[INFO] [stdout] 212 |     pub fn new(capacity: u32) -> Lfu {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn refer(&mut self, val: String) -> Option<String> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `heap`, `indices`, `max_size`, and `num_items` are never read
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct LfuInner<T> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 22 |     heap: Vec<(T, usize)>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     indices: HashMap<T, usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     max_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 26 |     num_items: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, `refer`, `insert`, `increment`, and `heapify` are never used
[INFO] [stdout]    --> src/lib.rs:30:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl<T: Clone + Hash + Eq + Ord> LfuInner<T> {
[INFO] [stdout]     | -------------------------------------------- associated items in this implementation
[INFO] [stdout] 30  |     fn new(capacity: usize) -> LfuInner<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 40  |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47  |     pub fn refer(&mut self, val: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65  |     fn insert(&mut self, val: &T) -> Option<T> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn increment(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     fn heapify(&mut self, index: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lfu` is never read
[INFO] [stdout]    --> src/lib.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 205 | struct Lfu {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] 206 |     lfu: LfuInner<String>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `clear`, and `refer` are never used
[INFO] [stdout]    --> src/lib.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl Lfu {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 211 |     #[wasm_bindgen(constructor)]
[INFO] [stdout] 212 |     pub fn new(capacity: u32) -> Lfu {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn refer(&mut self, val: String) -> Option<String> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.26s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.74
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "7d2512ccfee8daa7c7ee66bf00b54311a72c9e42b49163aaa0031c5ab824b41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2512ccfee8daa7c7ee66bf00b54311a72c9e42b49163aaa0031c5ab824b41b", kill_on_drop: false }`
[INFO] [stdout] 7d2512ccfee8daa7c7ee66bf00b54311a72c9e42b49163aaa0031c5ab824b41b