[INFO] fetching crate codegen 0.2.0...
[INFO] checking codegen-0.2.0 against master#e4106065bf1bb515935d5d024e8d9c86454e2b22 for pr-112160
[INFO] extracting crate codegen 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate codegen 0.2.0 on toolchain e4106065bf1bb515935d5d024e8d9c86454e2b22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate codegen 0.2.0
[INFO] finished tweaking crates.io crate codegen 0.2.0
[INFO] tweaked toml for crates.io crate codegen 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "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" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3b61f37a720df607adf7b1acfd0959d56a5a0f5c7672b1087c26f7187c3ebd0
[INFO] running `Command { std: "docker" "start" "-a" "e3b61f37a720df607adf7b1acfd0959d56a5a0f5c7672b1087c26f7187c3ebd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3b61f37a720df607adf7b1acfd0959d56a5a0f5c7672b1087c26f7187c3ebd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b61f37a720df607adf7b1acfd0959d56a5a0f5c7672b1087c26f7187c3ebd0", kill_on_drop: false }`
[INFO] [stdout] e3b61f37a720df607adf7b1acfd0959d56a5a0f5c7672b1087c26f7187c3ebd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4b25981962c5ef3c7681b65bf14dbc857c125f6e95a49004b14c69f51acc743
[INFO] running `Command { std: "docker" "start" "-a" "f4b25981962c5ef3c7681b65bf14dbc857c125f6e95a49004b14c69f51acc743", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking codegen v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]  --> src/import.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Import {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 4 |     line: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Import` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `docs` is never read
[INFO] [stdout]   --> src/module.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Module {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     docs: Option<Docs>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Module` 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: field `docs` is never read
[INFO] [stdout]   --> src/scope.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 23 |     /// Scope documentation
[INFO] [stdout] 24 |     docs: Option<Docs>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scope` 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: field `macros` is never read
[INFO] [stdout]   --> src/trait.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Trait {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     macros: Vec<String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Trait` 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]  --> src/import.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Import {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 4 |     line: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Import` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `docs` is never read
[INFO] [stdout]   --> src/module.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Module {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     docs: Option<Docs>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Module` 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: field `docs` is never read
[INFO] [stdout]   --> src/scope.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 23 |     /// Scope documentation
[INFO] [stdout] 24 |     docs: Option<Docs>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scope` 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: field `macros` is never read
[INFO] [stdout]   --> src/trait.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Trait {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     macros: Vec<String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Trait` 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "f4b25981962c5ef3c7681b65bf14dbc857c125f6e95a49004b14c69f51acc743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b25981962c5ef3c7681b65bf14dbc857c125f6e95a49004b14c69f51acc743", kill_on_drop: false }`
[INFO] [stdout] f4b25981962c5ef3c7681b65bf14dbc857c125f6e95a49004b14c69f51acc743