[INFO] fetching crate blackboxmc_proc 0.5.1...
[INFO] checking blackboxmc_proc-0.5.1 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate blackboxmc_proc 0.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate blackboxmc_proc 0.5.1 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackboxmc_proc 0.5.1
[INFO] finished tweaking crates.io crate blackboxmc_proc 0.5.1
[INFO] tweaked toml for crates.io crate blackboxmc_proc 0.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2-diagnostics v0.10.1
[INFO] [stderr]   Downloaded yansi v1.0.0-rc.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f43390559758242c054e060948505f9db99de4f4a8ace17d8e08aef02656df6
[INFO] running `Command { std: "docker" "start" "-a" "0f43390559758242c054e060948505f9db99de4f4a8ace17d8e08aef02656df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f43390559758242c054e060948505f9db99de4f4a8ace17d8e08aef02656df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f43390559758242c054e060948505f9db99de4f4a8ace17d8e08aef02656df6", kill_on_drop: false }`
[INFO] [stdout] 0f43390559758242c054e060948505f9db99de4f4a8ace17d8e08aef02656df6
[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" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a522305e3649cf8c433a5a2c7040a4783d6be22143ea8d281de7303785088ba
[INFO] running `Command { std: "docker" "start" "-a" "5a522305e3649cf8c433a5a2c7040a4783d6be22143ea8d281de7303785088ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]     Checking yansi v1.0.0-rc.1
[INFO] [stderr]     Checking semver v1.0.20
[INFO] [stderr]     Checking syn v2.0.42
[INFO] [stderr]     Checking rustc_version v0.4.0
[INFO] [stderr]     Checking blackboxmc_proc v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Channel`, `version_meta`
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustc_version::{version_meta, Channel};
[INFO] [stdout]   |                     ^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attribute`, `parse_macro_input`, `self`
[INFO] [stdout]   --> src/lib.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |     parse::{self, Parse, ParseStream},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 9  |     parse_macro_input,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Attribute, ItemImpl, Receiver, Token,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Channel`, `version_meta`
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustc_version::{version_meta, Channel};
[INFO] [stdout]   |                     ^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attribute`, `parse_macro_input`, `self`
[INFO] [stdout]   --> src/lib.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |     parse::{self, Parse, ParseStream},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 9  |     parse_macro_input,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Attribute, ItemImpl, Receiver, Token,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     match extends_general(
[INFO] [stdout] 50 | |         ExtendType::from(attr.to_string().as_str()),
[INFO] [stdout] 51 | |         attr,
[INFO] [stdout] 52 | |         item.clone(),
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |         }
[INFO] [stdout] 67 | |     }
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 68 |       item
[INFO] [stdout]    |       ^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     match extends_general(
[INFO] [stdout] 50 | |         ExtendType::from(attr.to_string().as_str()),
[INFO] [stdout] 51 | |         attr,
[INFO] [stdout] 52 | |         item.clone(),
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |         }
[INFO] [stdout] 67 | |     }
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 68 |       item
[INFO] [stdout]    |       ^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abstract_functions`
[INFO] [stdout]    --> src/lib.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let abstract_functions = ExtendRequirements::from_type(&ty).abstract_functions;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abstract_functions`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abstract_functions`
[INFO] [stdout]    --> src/lib.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let abstract_functions = ExtendRequirements::from_type(&ty).abstract_functions;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abstract_functions`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let struct_name = type_name(&*item.self_ty, false, false, false);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let struct_name = type_name(&*item.self_ty, false, false, false);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]    --> src/lib.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |     attr: TokenStream,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]    --> src/lib.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |     attr: TokenStream,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Args {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 16 |     vars: HashSet<Ident>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tab_executor` is never used
[INFO] [stdout]    --> src/lib.rs:678:8
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<'a> ExtendRequirements<'a> {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 678 |     fn tab_executor() -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Args {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 16 |     vars: HashSet<Ident>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tab_executor` is never used
[INFO] [stdout]    --> src/lib.rs:678:8
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<'a> ExtendRequirements<'a> {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 678 |     fn tab_executor() -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "5a522305e3649cf8c433a5a2c7040a4783d6be22143ea8d281de7303785088ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a522305e3649cf8c433a5a2c7040a4783d6be22143ea8d281de7303785088ba", kill_on_drop: false }`
[INFO] [stdout] 5a522305e3649cf8c433a5a2c7040a4783d6be22143ea8d281de7303785088ba
[INFO] checking blackboxmc_proc-0.5.1 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate blackboxmc_proc 0.5.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate blackboxmc_proc 0.5.1 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackboxmc_proc 0.5.1
[INFO] finished tweaking crates.io crate blackboxmc_proc 0.5.1
[INFO] tweaked toml for crates.io crate blackboxmc_proc 0.5.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3565a2033df8e8c5dc4f4eb742564d1240af2e9d4e5449ac5f96b2f6ea307b6f
[INFO] running `Command { std: "docker" "start" "-a" "3565a2033df8e8c5dc4f4eb742564d1240af2e9d4e5449ac5f96b2f6ea307b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3565a2033df8e8c5dc4f4eb742564d1240af2e9d4e5449ac5f96b2f6ea307b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3565a2033df8e8c5dc4f4eb742564d1240af2e9d4e5449ac5f96b2f6ea307b6f", kill_on_drop: false }`
[INFO] [stdout] 3565a2033df8e8c5dc4f4eb742564d1240af2e9d4e5449ac5f96b2f6ea307b6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17ebe1b50509047e253361f4930efdfedfc68ef75235e88d6fafa0abf462197a
[INFO] running `Command { std: "docker" "start" "-a" "17ebe1b50509047e253361f4930efdfedfc68ef75235e88d6fafa0abf462197a", kill_on_drop: false }`
[INFO] [stderr]     Checking yansi v1.0.0-rc.1
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]     Checking semver v1.0.20
[INFO] [stderr]     Checking syn v2.0.42
[INFO] [stderr]     Checking rustc_version v0.4.0
[INFO] [stderr]     Checking blackboxmc_proc v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Channel`, `version_meta`
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustc_version::{version_meta, Channel};
[INFO] [stdout]   |                     ^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Channel`, `version_meta`
[INFO] [stdout]  --> src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustc_version::{version_meta, Channel};
[INFO] [stdout]   |                     ^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attribute`, `parse_macro_input`, `self`
[INFO] [stdout]   --> src/lib.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |     parse::{self, Parse, ParseStream},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 9  |     parse_macro_input,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Attribute, ItemImpl, Receiver, Token,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Attribute`, `parse_macro_input`, `self`
[INFO] [stdout]   --> src/lib.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |     parse::{self, Parse, ParseStream},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 9  |     parse_macro_input,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Attribute, ItemImpl, Receiver, Token,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     match extends_general(
[INFO] [stdout] 50 | |         ExtendType::from(attr.to_string().as_str()),
[INFO] [stdout] 51 | |         attr,
[INFO] [stdout] 52 | |         item.clone(),
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |         }
[INFO] [stdout] 67 | |     }
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 68 |       item
[INFO] [stdout]    |       ^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     match extends_general(
[INFO] [stdout] 50 | |         ExtendType::from(attr.to_string().as_str()),
[INFO] [stdout] 51 | |         attr,
[INFO] [stdout] 52 | |         item.clone(),
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |         }
[INFO] [stdout] 67 | |     }
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 68 |       item
[INFO] [stdout]    |       ^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abstract_functions`
[INFO] [stdout]    --> src/lib.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let abstract_functions = ExtendRequirements::from_type(&ty).abstract_functions;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abstract_functions`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abstract_functions`
[INFO] [stdout]    --> src/lib.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let abstract_functions = ExtendRequirements::from_type(&ty).abstract_functions;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abstract_functions`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let struct_name = type_name(&*item.self_ty, false, false, false);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_name`
[INFO] [stdout]    --> src/lib.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let struct_name = type_name(&*item.self_ty, false, false, false);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]    --> src/lib.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |     attr: TokenStream,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]    --> src/lib.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |     attr: TokenStream,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Args {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 16 |     vars: HashSet<Ident>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vars` is never read
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Args {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 16 |     vars: HashSet<Ident>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tab_executor` is never used
[INFO] [stdout]    --> src/lib.rs:678:8
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<'a> ExtendRequirements<'a> {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 678 |     fn tab_executor() -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tab_executor` is never used
[INFO] [stdout]    --> src/lib.rs:678:8
[INFO] [stdout]     |
[INFO] [stdout] 427 | impl<'a> ExtendRequirements<'a> {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 678 |     fn tab_executor() -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "17ebe1b50509047e253361f4930efdfedfc68ef75235e88d6fafa0abf462197a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17ebe1b50509047e253361f4930efdfedfc68ef75235e88d6fafa0abf462197a", kill_on_drop: false }`
[INFO] [stdout] 17ebe1b50509047e253361f4930efdfedfc68ef75235e88d6fafa0abf462197a
