[INFO] cloning repository https://github.com/emlaufer/juntos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emlaufer/juntos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femlaufer%2Fjuntos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femlaufer%2Fjuntos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d66d8241901939974254c0865c95d3dda9d9e20
[INFO] checking emlaufer/juntos against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femlaufer%2Fjuntos" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emlaufer/juntos on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/emlaufer/juntos
[INFO] finished tweaking git repo https://github.com/emlaufer/juntos
[INFO] tweaked toml for git repo https://github.com/emlaufer/juntos written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/emlaufer/juntos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", 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] d7c93a0071fd84a387b388aa3c762a6e0ef047059bcf55fc6015bbb71f613985
[INFO] running `Command { std: "docker" "start" "-a" "d7c93a0071fd84a387b388aa3c762a6e0ef047059bcf55fc6015bbb71f613985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7c93a0071fd84a387b388aa3c762a6e0ef047059bcf55fc6015bbb71f613985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7c93a0071fd84a387b388aa3c762a6e0ef047059bcf55fc6015bbb71f613985", kill_on_drop: false }`
[INFO] [stdout] d7c93a0071fd84a387b388aa3c762a6e0ef047059bcf55fc6015bbb71f613985
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 02e97fab6a73f38febfac75a45de70cf2afacb552d21920931a6fde245e40aae
[INFO] running `Command { std: "docker" "start" "-a" "02e97fab6a73f38febfac75a45de70cf2afacb552d21920931a6fde245e40aae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking juntos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stdout] warning: associated function is never used: `from_frame_num`
[INFO] [stdout]   --> src/arch/x86_64/paging/addr.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn from_frame_num(num: usize) -> PhysicalAddress {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_usize`
[INFO] [stdout]   --> src/arch/x86_64/paging/addr.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn from_usize(addr: usize) -> PhysicalAddress {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map_no_alloc`
[INFO] [stdout]   --> src/arch/x86_64/paging/mapper.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn map_no_alloc<A>(&mut self, page: Page, frame: Frame<A>) -> Result<(), &str>
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_table`
[INFO] [stdout]   --> src/arch/x86_64/paging/table.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub unsafe fn get_table(&self, index: usize) -> Option<&RecursivePageTable> {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `addr`
[INFO] [stdout]   --> src/arch/x86_64/paging/mod.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn addr(&self) -> VirtualAddress {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `frame_number`
[INFO] [stdout]   --> src/memory/bitmap.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn frame_number(&self, index: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `alloc_range`
[INFO] [stdout]   --> src/memory/bitmap.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn alloc_range(&mut self, size: usize) -> Option<PhysicalMemoryRegion> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contiguous_range`
[INFO] [stdout]    --> src/memory/bitmap.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn contiguous_range(&self, num: usize) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/memory/bitmap.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `addr`
[INFO] [stdout]   --> src/memory/mod.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn addr(&self) -> PhysicalAddress {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/utils/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(iter: I, f: F) -> Leftovers<I, F, U> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory/bitmap.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let mut bitmap = FixedBitmap { words: [0u64; 64] };
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_usize`
[INFO] [stdout]   --> src/arch/x86_64/paging/addr.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn from_usize(addr: usize) -> PhysicalAddress {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map_no_alloc`
[INFO] [stdout]   --> src/arch/x86_64/paging/mapper.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn map_no_alloc<A>(&mut self, page: Page, frame: Frame<A>) -> Result<(), &str>
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_table`
[INFO] [stdout]   --> src/arch/x86_64/paging/table.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub unsafe fn get_table(&self, index: usize) -> Option<&RecursivePageTable> {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `addr`
[INFO] [stdout]   --> src/arch/x86_64/paging/mod.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn addr(&self) -> VirtualAddress {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `frame_number`
[INFO] [stdout]   --> src/memory/bitmap.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn frame_number(&self, index: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `addr`
[INFO] [stdout]   --> src/memory/mod.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn addr(&self) -> PhysicalAddress {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/utils/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(iter: I, f: F) -> Leftovers<I, F, U> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.59s
[INFO] running `Command { std: "docker" "inspect" "02e97fab6a73f38febfac75a45de70cf2afacb552d21920931a6fde245e40aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02e97fab6a73f38febfac75a45de70cf2afacb552d21920931a6fde245e40aae", kill_on_drop: false }`
[INFO] [stdout] 02e97fab6a73f38febfac75a45de70cf2afacb552d21920931a6fde245e40aae