[INFO] fetching crate i-codegen-derive 0.0.5...
[INFO] checking i-codegen-derive-0.0.5 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate i-codegen-derive 0.0.5 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate i-codegen-derive 0.0.5 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate i-codegen-derive 0.0.5
[INFO] finished tweaking crates.io crate i-codegen-derive 0.0.5
[INFO] tweaked toml for crates.io crate i-codegen-derive 0.0.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bf231ed5debc5370b63af5486c9e481405dbb8e2385870a6a7b821f465c8cf6
[INFO] running `Command { std: "docker" "start" "-a" "9bf231ed5debc5370b63af5486c9e481405dbb8e2385870a6a7b821f465c8cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bf231ed5debc5370b63af5486c9e481405dbb8e2385870a6a7b821f465c8cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bf231ed5debc5370b63af5486c9e481405dbb8e2385870a6a7b821f465c8cf6", kill_on_drop: false }`
[INFO] [stdout] 9bf231ed5debc5370b63af5486c9e481405dbb8e2385870a6a7b821f465c8cf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab0546fd1a2df43c3791cdc2ebbaca8e92036f6c73b662d7aa0e458c131ab74f
[INFO] running `Command { std: "docker" "start" "-a" "ab0546fd1a2df43c3791cdc2ebbaca8e92036f6c73b662d7aa0e458c131ab74f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking i-codegen-code v0.0.5
[INFO] [stderr]     Checking i-codegen-derive v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Span`
[INFO] [stdout]  --> src/parse.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use proc_macro2::{Span, TokenStream};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Span`
[INFO] [stdout]  --> src/parse.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use proc_macro2::{Span, TokenStream};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/parse.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     root: st::TypeRoot,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]    --> src/parse.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     kind: LinkKind,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> src/parse.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     ident: &Ident,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `crate_name` is never read
[INFO] [stdout]   --> src/parse.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     External {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 14 |         /// The encapsulating crate's name as seen during a `use [crate_name]::{linkme, Context, CODEGEN_ITEMS};` statement.
[INFO] [stdout] 15 |         crate_name: &'static str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/parse.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     root: st::TypeRoot,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]    --> src/parse.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     kind: LinkKind,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> src/parse.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     ident: &Ident,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `crate_name` is never read
[INFO] [stdout]   --> src/parse.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     External {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 14 |         /// The encapsulating crate's name as seen during a `use [crate_name]::{linkme, Context, CODEGEN_ITEMS};` statement.
[INFO] [stdout] 15 |         crate_name: &'static str,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.87s
[INFO] running `Command { std: "docker" "inspect" "ab0546fd1a2df43c3791cdc2ebbaca8e92036f6c73b662d7aa0e458c131ab74f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0546fd1a2df43c3791cdc2ebbaca8e92036f6c73b662d7aa0e458c131ab74f", kill_on_drop: false }`
[INFO] [stdout] ab0546fd1a2df43c3791cdc2ebbaca8e92036f6c73b662d7aa0e458c131ab74f