[INFO] cloning repository https://github.com/Kim-Dewelski/cyn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kim-Dewelski/cyn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKim-Dewelski%2Fcyn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKim-Dewelski%2Fcyn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0fa01f16f27a9f85cf4927d6308f222cb8cbfa82
[INFO] building Kim-Dewelski/cyn against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKim-Dewelski%2Fcyn" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kim-Dewelski/cyn on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Kim-Dewelski/cyn
[INFO] finished tweaking git repo https://github.com/Kim-Dewelski/cyn
[INFO] tweaked toml for git repo https://github.com/Kim-Dewelski/cyn written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Kim-Dewelski/cyn 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peeking_take_while v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e1011f09af7f4eb5bf8a8a66910d2d5cd5a4fe3d0f8a93a60e4cecf0fb744d5
[INFO] running `Command { std: "docker" "start" "-a" "1e1011f09af7f4eb5bf8a8a66910d2d5cd5a4fe3d0f8a93a60e4cecf0fb744d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e1011f09af7f4eb5bf8a8a66910d2d5cd5a4fe3d0f8a93a60e4cecf0fb744d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1011f09af7f4eb5bf8a8a66910d2d5cd5a4fe3d0f8a93a60e4cecf0fb744d5", kill_on_drop: false }`
[INFO] [stdout] 1e1011f09af7f4eb5bf8a8a66910d2d5cd5a4fe3d0f8a93a60e4cecf0fb744d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4c5d7e3aa543912cbb9ff3c42258dd4ccd10a7a9391b83320f57d9b861a81be
[INFO] running `Command { std: "docker" "start" "-a" "b4c5d7e3aa543912cbb9ff3c42258dd4ccd10a7a9391b83320f57d9b861a81be", kill_on_drop: false }`
[INFO] [stderr]    Compiling peeking_take_while v1.0.0
[INFO] [stderr]    Compiling cyn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `parse`
[INFO] [stdout]   --> src/initializer.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn parse(parse: ParseStream) -> Result<Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_parse`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parse`
[INFO] [stdout]   --> src/initializer.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn parse(parse: ParseStream) -> Result<Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/initializer.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn to_tokens(&self, tokens: &mut TokenStream) {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/initializer.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn to_tokens(&self, tokens: &mut TokenStream) {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/specifier.rs:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 |         fn to_tokens(&self, tokens: &mut TokenStream) {}
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start_token` and `end_token` are never read
[INFO] [stdout]  --> src/span.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Span {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     start_token: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 3 |     end_token: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "b4c5d7e3aa543912cbb9ff3c42258dd4ccd10a7a9391b83320f57d9b861a81be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4c5d7e3aa543912cbb9ff3c42258dd4ccd10a7a9391b83320f57d9b861a81be", kill_on_drop: false }`
[INFO] [stdout] b4c5d7e3aa543912cbb9ff3c42258dd4ccd10a7a9391b83320f57d9b861a81be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72924151c2808ed2c53f900eceb55af5189500d414471aceb2dfc4f8a0951a51
[INFO] running `Command { std: "docker" "start" "-a" "72924151c2808ed2c53f900eceb55af5189500d414471aceb2dfc4f8a0951a51", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `parse`
[INFO] [stdout]   --> src/initializer.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn parse(parse: ParseStream) -> Result<Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_parse`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parse`
[INFO] [stdout]   --> src/initializer.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn parse(parse: ParseStream) -> Result<Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/initializer.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn to_tokens(&self, tokens: &mut TokenStream) {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/initializer.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn to_tokens(&self, tokens: &mut TokenStream) {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/specifier.rs:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 |         fn to_tokens(&self, tokens: &mut TokenStream) {}
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start_token` and `end_token` are never read
[INFO] [stdout]  --> src/span.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Span {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     start_token: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 3 |     end_token: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cyn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `parse`
[INFO] [stdout]   --> src/initializer.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn parse(parse: ParseStream) -> Result<Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_parse`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parse`
[INFO] [stdout]   --> src/initializer.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn parse(parse: ParseStream) -> Result<Self> {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/initializer.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn to_tokens(&self, tokens: &mut TokenStream) {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/initializer.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn to_tokens(&self, tokens: &mut TokenStream) {
[INFO] [stdout]    |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/specifier.rs:212:29
[INFO] [stdout]     |
[INFO] [stdout] 212 |         fn to_tokens(&self, tokens: &mut TokenStream) {}
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start_token` and `end_token` are never read
[INFO] [stdout]  --> src/span.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Span {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     start_token: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 3 |     end_token: usize,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "72924151c2808ed2c53f900eceb55af5189500d414471aceb2dfc4f8a0951a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72924151c2808ed2c53f900eceb55af5189500d414471aceb2dfc4f8a0951a51", kill_on_drop: false }`
[INFO] [stdout] 72924151c2808ed2c53f900eceb55af5189500d414471aceb2dfc4f8a0951a51