[INFO] cloning repository https://github.com/luojia65/software-security-homework
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luojia65/software-security-homework" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsoftware-security-homework", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsoftware-security-homework'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b57e438ec5fb8da00f7aae83a20bc734d55e63c
[INFO] checking luojia65/software-security-homework against try#2b41547e41f63ea0ca9cb25417ddd569b19e6a50 for pr-134273
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsoftware-security-homework" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luojia65/software-security-homework on toolchain 2b41547e41f63ea0ca9cb25417ddd569b19e6a50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b41547e41f63ea0ca9cb25417ddd569b19e6a50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luojia65/software-security-homework
[INFO] finished tweaking git repo https://github.com/luojia65/software-security-homework
[INFO] tweaked toml for git repo https://github.com/luojia65/software-security-homework written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/luojia65/software-security-homework 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" "+2b41547e41f63ea0ca9cb25417ddd569b19e6a50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2b41547e41f63ea0ca9cb25417ddd569b19e6a50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d00376f7a6757ecfcf96648177230d3360234bcf125ccccb82f5a267742916a1
[INFO] running `Command { std: "docker" "start" "-a" "d00376f7a6757ecfcf96648177230d3360234bcf125ccccb82f5a267742916a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d00376f7a6757ecfcf96648177230d3360234bcf125ccccb82f5a267742916a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00376f7a6757ecfcf96648177230d3360234bcf125ccccb82f5a267742916a1", kill_on_drop: false }`
[INFO] [stdout] d00376f7a6757ecfcf96648177230d3360234bcf125ccccb82f5a267742916a1
[INFO] checking luojia65/software-security-homework against try#2b41547e41f63ea0ca9cb25417ddd569b19e6a50 for pr-134273
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fsoftware-security-homework" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luojia65/software-security-homework on toolchain 2b41547e41f63ea0ca9cb25417ddd569b19e6a50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b41547e41f63ea0ca9cb25417ddd569b19e6a50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luojia65/software-security-homework
[INFO] finished tweaking git repo https://github.com/luojia65/software-security-homework
[INFO] tweaked toml for git repo https://github.com/luojia65/software-security-homework written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/luojia65/software-security-homework 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" "+2b41547e41f63ea0ca9cb25417ddd569b19e6a50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2b41547e41f63ea0ca9cb25417ddd569b19e6a50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a964b68aa0a72f7b142523b677a70245d205997677f260f07f578ca5efed0332
[INFO] running `Command { std: "docker" "start" "-a" "a964b68aa0a72f7b142523b677a70245d205997677f260f07f578ca5efed0332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a964b68aa0a72f7b142523b677a70245d205997677f260f07f578ca5efed0332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a964b68aa0a72f7b142523b677a70245d205997677f260f07f578ca5efed0332", kill_on_drop: false }`
[INFO] [stdout] a964b68aa0a72f7b142523b677a70245d205997677f260f07f578ca5efed0332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2b41547e41f63ea0ca9cb25417ddd569b19e6a50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db620587b1d68c22c201a826f6f0e6c2e9e38ad61bceccc18223ac49f00b66f9
[INFO] running `Command { std: "docker" "start" "-a" "db620587b1d68c22c201a826f6f0e6c2e9e38ad61bceccc18223ac49f00b66f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking software-security-homework v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/r3.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(&'a str),
[INFO] [stdout]   |     ------------- ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(()),
[INFO] [stdout]   |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/r3.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(&'a str),
[INFO] [stdout]   |     ------ ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(()),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/r3.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/r3.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `params` are never read
[INFO] [stdout]    --> src/r3.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 238 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 239 |     ident: Ident<'a>,
[INFO] [stdout] 240 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/r4.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/r4.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type`, `ident`, and `params` are never read
[INFO] [stdout]    --> src/r4.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 238 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 239 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 240 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/r5.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 145 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/r5.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type`, `ident`, and `params` are never read
[INFO] [stdout]    --> src/r5.rs:236:5
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 236 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 237 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 238 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/a1.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(&'a str),
[INFO] [stdout]   |     ------------- ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(()),
[INFO] [stdout]   |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/a1.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(&'a str),
[INFO] [stdout]   |     ------ ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(()),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/a1.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/a1.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `params` are never read
[INFO] [stdout]    --> src/a1.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 226 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 227 |     ident: Ident<'a>,
[INFO] [stdout] 228 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/b2.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/b2.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `ident` are never read
[INFO] [stdout]    --> src/b2.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 238 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 239 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]    --> src/b2.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 293 | pub struct Line<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 294 |     idx: usize, 
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Line` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/b4.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 148 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/b4.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `ident` are never read
[INFO] [stdout]    --> src/b4.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 239 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 240 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]    --> src/b4.rs:295:5
[INFO] [stdout]     |
[INFO] [stdout] 294 | pub struct Line<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 295 |     idx: usize, 
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Line` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/b5.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 148 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/b5.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `params` are never read
[INFO] [stdout]    --> src/b5.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 239 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 240 |     ident: Ident<'a>,
[INFO] [stdout] 241 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/r3.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(&'a str),
[INFO] [stdout]   |     ------------- ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(()),
[INFO] [stdout]   |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/r3.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(&'a str),
[INFO] [stdout]   |     ------ ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(()),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/r3.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/r3.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `params` are never read
[INFO] [stdout]    --> src/r3.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 238 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 239 |     ident: Ident<'a>,
[INFO] [stdout] 240 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/r4.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/r4.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type`, `ident`, and `params` are never read
[INFO] [stdout]    --> src/r4.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 238 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 239 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 240 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/r5.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 145 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/r5.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type`, `ident`, and `params` are never read
[INFO] [stdout]    --> src/r5.rs:236:5
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 236 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 237 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 238 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/a1.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(&'a str),
[INFO] [stdout]   |     ------------- ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 |     StringLiteral(()),
[INFO] [stdout]   |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/a1.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(&'a str),
[INFO] [stdout]   |     ------ ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Number(()),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/a1.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/a1.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `params` are never read
[INFO] [stdout]    --> src/a1.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 226 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 227 |     ident: Ident<'a>,
[INFO] [stdout] 228 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/b2.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 147 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/b2.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `ident` are never read
[INFO] [stdout]    --> src/b2.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 238 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 239 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]    --> src/b2.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 293 | pub struct Line<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 294 |     idx: usize, 
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Line` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/b4.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 148 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/b4.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `ident` are never read
[INFO] [stdout]    --> src/b4.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 239 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 240 |     ident: Ident<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `idx` is never read
[INFO] [stdout]    --> src/b4.rs:295:5
[INFO] [stdout]     |
[INFO] [stdout] 294 | pub struct Line<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 295 |     idx: usize, 
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Line` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/b5.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub struct Type<'a> {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 148 |     name: &'a str,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Operator` is never constructed
[INFO] [stdout]    --> src/b5.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Operator<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ret_type` and `params` are never read
[INFO] [stdout]    --> src/b5.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub struct Function<'a> {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 239 |     ret_type: Type<'a>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 240 |     ident: Ident<'a>,
[INFO] [stdout] 241 |     params: Expr<'a>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "db620587b1d68c22c201a826f6f0e6c2e9e38ad61bceccc18223ac49f00b66f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db620587b1d68c22c201a826f6f0e6c2e9e38ad61bceccc18223ac49f00b66f9", kill_on_drop: false }`
[INFO] [stdout] db620587b1d68c22c201a826f6f0e6c2e9e38ad61bceccc18223ac49f00b66f9