[INFO] updating cached repository https://github.com/masuke5/beige
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/masuke5/beige
[INFO] [stderr]    944a129..b07c2a0  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b07c2a0d970187c5efcd153d196d4c1a4bb23d22
[INFO] testing masuke5/beige against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Fbeige" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masuke5/beige on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masuke5/beige
[INFO] finished tweaking git repo https://github.com/masuke5/beige
[INFO] tweaked toml for git repo https://github.com/masuke5/beige written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/masuke5/beige already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3ff1e6d3298c4b0cd4275bac7d863520ec093c6760313e59e9b169b4e659030
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b3ff1e6d3298c4b0cd4275bac7d863520ec093c6760313e59e9b169b4e659030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3ff1e6d3298c4b0cd4275bac7d863520ec093c6760313e59e9b169b4e659030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3ff1e6d3298c4b0cd4275bac7d863520ec093c6760313e59e9b169b4e659030", kill_on_drop: false }`
[INFO] [stdout] b3ff1e6d3298c4b0cd4275bac7d863520ec093c6760313e59e9b169b4e659030
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56fda98d55d201211c33902b0f385243546c1021be0f427603d19b4f39c73fc1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "56fda98d55d201211c33902b0f385243546c1021be0f427603d19b4f39c73fc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling os_str_bytes v2.3.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]    Compiling clap v3.0.0-beta.1
[INFO] [stderr]    Compiling beige v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pred`
[INFO] [stdout]   --> src/graph.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pred: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `succ`
[INFO] [stdout]   --> src/graph.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     succ: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn add_to(&'a mut self, node: &'a mut DirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pred`
[INFO] [stdout]   --> src/graph.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn pred(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `succ`
[INFO] [stdout]   --> src/graph.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn succ(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `adjacent`
[INFO] [stdout]   --> src/graph.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     adjacent: RefCell<Vec<&'a UndirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn add_to(&'a mut self, node: &'a mut UndirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `adjacent`
[INFO] [stdout]   --> src/graph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn adjacent(&'a self) -> Ref<'a, Vec<&'a UndirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DirectedGraph`
[INFO] [stdout]   --> src/graph.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub type DirectedGraph<'a, T> = Graph<'a, T, DirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `UndirectedGraph`
[INFO] [stdout]   --> src/graph.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub type UndirectedGraph<'a, T> = Graph<'a, T, UndirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Graph`
[INFO] [stdout]   --> src/graph.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Graph<'a, T, N: Node<T>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/graph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/graph.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn insert(&'a mut self, value: T) -> &'a N {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddF`
[INFO] [stdout]   --> src/ir.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     AddF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubF`
[INFO] [stdout]   --> src/ir.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     SubF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MulF`
[INFO] [stdout]   --> src/ir.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     MulF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DivF`
[INFO] [stdout]   --> src/ir.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     DivF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_unique`
[INFO] [stdout]   --> src/ty.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn new_unique(&mut self) -> Unique {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG32_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | / const REG32_NAMES: [&str; 16] = [
[INFO] [stdout] 54 | |     "eax", "ebx", "ecx", "edx", "ebp", "esp", "edi", "esi", "r8d", "r9d", "r10d", "r11d", "r12d",
[INFO] [stdout] 55 | |     "r13d", "r14d", "r15d",
[INFO] [stdout] 56 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG16_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / const REG16_NAMES: [&str; 16] = [
[INFO] [stdout] 58 | |     "ax", "bx", "cx", "dx", "bp", "sp", "di", "si", "r8w", "r9w", "r10w", "r11w", "r12w", "r13w",
[INFO] [stdout] 59 | |     "r14w", "r15w",
[INFO] [stdout] 60 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG8_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | / const REG8_NAMES: [&str; 16] = [
[INFO] [stdout] 62 | |     "al", "bl", "cl", "dl", "bpl", "spl", "dil", "sil", "r8b", "r9b", "r10b", "r11b", "r12b",
[INFO] [stdout] 63 | |     "r13b", "r14b", "r15b",
[INFO] [stdout] 64 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/x64codegen.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.86s
[INFO] running `Command { std: "docker" "inspect" "56fda98d55d201211c33902b0f385243546c1021be0f427603d19b4f39c73fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56fda98d55d201211c33902b0f385243546c1021be0f427603d19b4f39c73fc1", kill_on_drop: false }`
[INFO] [stdout] 56fda98d55d201211c33902b0f385243546c1021be0f427603d19b4f39c73fc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6b6d3839a1e2c05fcd4692d0f5e68c58521321a2450afe5a361481f49798dbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c6b6d3839a1e2c05fcd4692d0f5e68c58521321a2450afe5a361481f49798dbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling beige v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pred`
[INFO] [stdout]   --> src/graph.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pred: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `succ`
[INFO] [stdout]   --> src/graph.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     succ: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn add_to(&'a mut self, node: &'a mut DirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pred`
[INFO] [stdout]   --> src/graph.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn pred(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `succ`
[INFO] [stdout]   --> src/graph.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn succ(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `adjacent`
[INFO] [stdout]   --> src/graph.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     adjacent: RefCell<Vec<&'a UndirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn add_to(&'a mut self, node: &'a mut UndirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `adjacent`
[INFO] [stdout]   --> src/graph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn adjacent(&'a self) -> Ref<'a, Vec<&'a UndirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DirectedGraph`
[INFO] [stdout]   --> src/graph.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub type DirectedGraph<'a, T> = Graph<'a, T, DirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `UndirectedGraph`
[INFO] [stdout]   --> src/graph.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub type UndirectedGraph<'a, T> = Graph<'a, T, UndirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Graph`
[INFO] [stdout]   --> src/graph.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Graph<'a, T, N: Node<T>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/graph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/graph.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn insert(&'a mut self, value: T) -> &'a N {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddF`
[INFO] [stdout]   --> src/ir.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     AddF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubF`
[INFO] [stdout]   --> src/ir.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     SubF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MulF`
[INFO] [stdout]   --> src/ir.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     MulF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DivF`
[INFO] [stdout]   --> src/ir.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     DivF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_unique`
[INFO] [stdout]   --> src/ty.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn new_unique(&mut self) -> Unique {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG32_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | / const REG32_NAMES: [&str; 16] = [
[INFO] [stdout] 54 | |     "eax", "ebx", "ecx", "edx", "ebp", "esp", "edi", "esi", "r8d", "r9d", "r10d", "r11d", "r12d",
[INFO] [stdout] 55 | |     "r13d", "r14d", "r15d",
[INFO] [stdout] 56 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG16_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / const REG16_NAMES: [&str; 16] = [
[INFO] [stdout] 58 | |     "ax", "bx", "cx", "dx", "bp", "sp", "di", "si", "r8w", "r9w", "r10w", "r11w", "r12w", "r13w",
[INFO] [stdout] 59 | |     "r14w", "r15w",
[INFO] [stdout] 60 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG8_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | / const REG8_NAMES: [&str; 16] = [
[INFO] [stdout] 62 | |     "al", "bl", "cl", "dl", "bpl", "spl", "dil", "sil", "r8b", "r9b", "r10b", "r11b", "r12b",
[INFO] [stdout] 63 | |     "r13b", "r14b", "r15b",
[INFO] [stdout] 64 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/x64codegen.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pred`
[INFO] [stdout]   --> src/graph.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pred: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `succ`
[INFO] [stdout]   --> src/graph.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     succ: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn add_to(&'a mut self, node: &'a mut DirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pred`
[INFO] [stdout]   --> src/graph.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn pred(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `succ`
[INFO] [stdout]   --> src/graph.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn succ(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/graph.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `adjacent`
[INFO] [stdout]   --> src/graph.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     adjacent: RefCell<Vec<&'a UndirectedNode<'a, T>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_to`
[INFO] [stdout]   --> src/graph.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn add_to(&'a mut self, node: &'a mut UndirectedNode<'a, T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `adjacent`
[INFO] [stdout]   --> src/graph.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn adjacent(&'a self) -> Ref<'a, Vec<&'a UndirectedNode<'a, T>>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DirectedGraph`
[INFO] [stdout]   --> src/graph.rs:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub type DirectedGraph<'a, T> = Graph<'a, T, DirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `UndirectedGraph`
[INFO] [stdout]   --> src/graph.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub type UndirectedGraph<'a, T> = Graph<'a, T, UndirectedNode<'a, T>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Graph`
[INFO] [stdout]   --> src/graph.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Graph<'a, T, N: Node<T>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/graph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/graph.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn insert(&'a mut self, value: T) -> &'a N {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AddF`
[INFO] [stdout]   --> src/ir.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     AddF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SubF`
[INFO] [stdout]   --> src/ir.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     SubF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MulF`
[INFO] [stdout]   --> src/ir.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     MulF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DivF`
[INFO] [stdout]   --> src/ir.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     DivF(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG32_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | / const REG32_NAMES: [&str; 16] = [
[INFO] [stdout] 54 | |     "eax", "ebx", "ecx", "edx", "ebp", "esp", "edi", "esi", "r8d", "r9d", "r10d", "r11d", "r12d",
[INFO] [stdout] 55 | |     "r13d", "r14d", "r15d",
[INFO] [stdout] 56 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG16_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | / const REG16_NAMES: [&str; 16] = [
[INFO] [stdout] 58 | |     "ax", "bx", "cx", "dx", "bp", "sp", "di", "si", "r8w", "r9w", "r10w", "r11w", "r12w", "r13w",
[INFO] [stdout] 59 | |     "r14w", "r15w",
[INFO] [stdout] 60 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG8_NAMES`
[INFO] [stdout]   --> src/x64codegen.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | / const REG8_NAMES: [&str; 16] = [
[INFO] [stdout] 62 | |     "al", "bl", "cl", "dl", "bpl", "spl", "dil", "sil", "r8b", "r9b", "r10b", "r11b", "r12b",
[INFO] [stdout] 63 | |     "r13b", "r14b", "r15b",
[INFO] [stdout] 64 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/x64codegen.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "c6b6d3839a1e2c05fcd4692d0f5e68c58521321a2450afe5a361481f49798dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6b6d3839a1e2c05fcd4692d0f5e68c58521321a2450afe5a361481f49798dbb", kill_on_drop: false }`
[INFO] [stdout] c6b6d3839a1e2c05fcd4692d0f5e68c58521321a2450afe5a361481f49798dbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dbd065a4322107f564cd3e40b191fef84dcd52876df78423bfb85e4472eceb22
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dbd065a4322107f564cd3e40b191fef84dcd52876df78423bfb85e4472eceb22", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/graph.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     value: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pred`
[INFO] [stderr]   --> src/graph.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pred: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `succ`
[INFO] [stderr]   --> src/graph.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     succ: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_to`
[INFO] [stderr]   --> src/graph.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn add_to(&'a mut self, node: &'a mut DirectedNode<'a, T>) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pred`
[INFO] [stderr]   --> src/graph.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn pred(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `succ`
[INFO] [stderr]   --> src/graph.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn succ(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/graph.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     value: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `adjacent`
[INFO] [stderr]   --> src/graph.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     adjacent: RefCell<Vec<&'a UndirectedNode<'a, T>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_to`
[INFO] [stderr]   --> src/graph.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn add_to(&'a mut self, node: &'a mut UndirectedNode<'a, T>) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `adjacent`
[INFO] [stderr]   --> src/graph.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn adjacent(&'a self) -> Ref<'a, Vec<&'a UndirectedNode<'a, T>>> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `DirectedGraph`
[INFO] [stderr]   --> src/graph.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub type DirectedGraph<'a, T> = Graph<'a, T, DirectedNode<'a, T>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `UndirectedGraph`
[INFO] [stderr]   --> src/graph.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub type UndirectedGraph<'a, T> = Graph<'a, T, UndirectedNode<'a, T>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Graph`
[INFO] [stderr]   --> src/graph.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 | pub struct Graph<'a, T, N: Node<T>> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/graph.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert`
[INFO] [stderr]   --> src/graph.rs:81:12
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn insert(&'a mut self, value: T) -> &'a N {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AddF`
[INFO] [stderr]   --> src/ir.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     AddF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubF`
[INFO] [stderr]   --> src/ir.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     SubF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MulF`
[INFO] [stderr]   --> src/ir.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     MulF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DivF`
[INFO] [stderr]   --> src/ir.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     DivF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_unique`
[INFO] [stderr]   --> src/ty.rs:78:12
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn new_unique(&mut self) -> Unique {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REG32_NAMES`
[INFO] [stderr]   --> src/x64codegen.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | / const REG32_NAMES: [&str; 16] = [
[INFO] [stderr] 54 | |     "eax", "ebx", "ecx", "edx", "ebp", "esp", "edi", "esi", "r8d", "r9d", "r10d", "r11d", "r12d",
[INFO] [stderr] 55 | |     "r13d", "r14d", "r15d",
[INFO] [stderr] 56 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REG16_NAMES`
[INFO] [stderr]   --> src/x64codegen.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | / const REG16_NAMES: [&str; 16] = [
[INFO] [stderr] 58 | |     "ax", "bx", "cx", "dx", "bp", "sp", "di", "si", "r8w", "r9w", "r10w", "r11w", "r12w", "r13w",
[INFO] [stderr] 59 | |     "r14w", "r15w",
[INFO] [stderr] 60 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REG8_NAMES`
[INFO] [stderr]   --> src/x64codegen.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 | / const REG8_NAMES: [&str; 16] = [
[INFO] [stderr] 62 | |     "al", "bl", "cl", "dl", "bpl", "spl", "dil", "sil", "r8b", "r9b", "r10b", "r11b", "r12b",
[INFO] [stderr] 63 | |     "r13b", "r14b", "r15b",
[INFO] [stderr] 64 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/x64codegen.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/graph.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     value: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pred`
[INFO] [stderr]   --> src/graph.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pred: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `succ`
[INFO] [stderr]   --> src/graph.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     succ: RefCell<Vec<&'a DirectedNode<'a, T>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_to`
[INFO] [stderr]   --> src/graph.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn add_to(&'a mut self, node: &'a mut DirectedNode<'a, T>) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pred`
[INFO] [stderr]   --> src/graph.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn pred(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `succ`
[INFO] [stderr]   --> src/graph.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn succ(&'a self) -> Ref<'a, Vec<&'a DirectedNode<'a, T>>> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/graph.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     value: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `adjacent`
[INFO] [stderr]   --> src/graph.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     adjacent: RefCell<Vec<&'a UndirectedNode<'a, T>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_to`
[INFO] [stderr]   --> src/graph.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn add_to(&'a mut self, node: &'a mut UndirectedNode<'a, T>) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `adjacent`
[INFO] [stderr]   --> src/graph.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn adjacent(&'a self) -> Ref<'a, Vec<&'a UndirectedNode<'a, T>>> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `DirectedGraph`
[INFO] [stderr]   --> src/graph.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub type DirectedGraph<'a, T> = Graph<'a, T, DirectedNode<'a, T>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `UndirectedGraph`
[INFO] [stderr]   --> src/graph.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub type UndirectedGraph<'a, T> = Graph<'a, T, UndirectedNode<'a, T>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Graph`
[INFO] [stderr]   --> src/graph.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 | pub struct Graph<'a, T, N: Node<T>> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/graph.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert`
[INFO] [stderr]   --> src/graph.rs:81:12
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn insert(&'a mut self, value: T) -> &'a N {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AddF`
[INFO] [stderr]   --> src/ir.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     AddF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubF`
[INFO] [stderr]   --> src/ir.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     SubF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MulF`
[INFO] [stderr]   --> src/ir.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     MulF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DivF`
[INFO] [stderr]   --> src/ir.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     DivF(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REG32_NAMES`
[INFO] [stderr]   --> src/x64codegen.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | / const REG32_NAMES: [&str; 16] = [
[INFO] [stderr] 54 | |     "eax", "ebx", "ecx", "edx", "ebp", "esp", "edi", "esi", "r8d", "r9d", "r10d", "r11d", "r12d",
[INFO] [stderr] 55 | |     "r13d", "r14d", "r15d",
[INFO] [stderr] 56 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REG16_NAMES`
[INFO] [stderr]   --> src/x64codegen.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | / const REG16_NAMES: [&str; 16] = [
[INFO] [stderr] 58 | |     "ax", "bx", "cx", "dx", "bp", "sp", "di", "si", "r8w", "r9w", "r10w", "r11w", "r12w", "r13w",
[INFO] [stderr] 59 | |     "r14w", "r15w",
[INFO] [stderr] 60 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REG8_NAMES`
[INFO] [stderr]   --> src/x64codegen.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 | / const REG8_NAMES: [&str; 16] = [
[INFO] [stderr] 62 | |     "al", "bl", "cl", "dl", "bpl", "spl", "dil", "sil", "r8b", "r9b", "r10b", "r11b", "r12b",
[INFO] [stderr] 63 | |     "r13b", "r14b", "r15b",
[INFO] [stderr] 64 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/x64codegen.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/beige-10ecd3b3e0a4150a
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test scope_map::tests::insert_with_level ... ok
[INFO] [stdout] test scope_map::tests::into_iter ... ok
[INFO] [stdout] test scope_map::tests::iter ... ok
[INFO] [stdout] test codegen::tests::test_format_mnemonic ... ok
[INFO] [stdout] test ty::tests::generate_arrow ... ok
[INFO] [stdout] test ty::tests::subst_with_poly ... ok
[INFO] [stdout] test ty::tests::subst_with_tyfun ... ok
[INFO] [stdout] test ty::tests::unify_with_meta_circulation ... ok
[INFO] [stdout] test ty::tests::unify_simple ... ok
[INFO] [stdout] test ty::tests::unify_with_meta ... ok
[INFO] [stdout] test ty::tests::unify_with_poly ... ok
[INFO] [stdout] test ty::tests::unify_with_tyfun ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/beige-1cb2ea18775e8b66
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests beige
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dbd065a4322107f564cd3e40b191fef84dcd52876df78423bfb85e4472eceb22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd065a4322107f564cd3e40b191fef84dcd52876df78423bfb85e4472eceb22", kill_on_drop: false }`
[INFO] [stdout] dbd065a4322107f564cd3e40b191fef84dcd52876df78423bfb85e4472eceb22