[INFO] fetching crate namable_closures 0.2.4...
[INFO] checking namable_closures-0.2.4 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate namable_closures 0.2.4 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate namable_closures 0.2.4 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate namable_closures 0.2.4
[INFO] finished tweaking crates.io crate namable_closures 0.2.4
[INFO] tweaked toml for crates.io crate namable_closures 0.2.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8114e1c5d747574392de214b60e977a6162a87910cef95973e7d12bd2e07204
[INFO] running `Command { std: "docker" "start" "-a" "c8114e1c5d747574392de214b60e977a6162a87910cef95973e7d12bd2e07204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8114e1c5d747574392de214b60e977a6162a87910cef95973e7d12bd2e07204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8114e1c5d747574392de214b60e977a6162a87910cef95973e7d12bd2e07204", kill_on_drop: false }`
[INFO] [stdout] c8114e1c5d747574392de214b60e977a6162a87910cef95973e7d12bd2e07204
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ddd111d8e4c2e5c8818e5e538bf6047faa4f5b97e50161bf297642ecc2ad5ee
[INFO] running `Command { std: "docker" "start" "-a" "5ddd111d8e4c2e5c8818e5e538bf6047faa4f5b97e50161bf297642ecc2ad5ee", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking namable_closures v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ClosureMutRec`
[INFO] [stdout]    --> src/closure_rec.rs:251:34
[INFO] [stdout]     |
[INFO] [stdout] 251 |     use closure_rec::{ClosureRec,ClosureMutRec};
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StableFnMut`
[INFO] [stdout]    --> src/closure_rec.rs:252:30
[INFO] [stdout]     |
[INFO] [stdout] 252 |     use stable_fn::{StableFn,StableFnMut};
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `state` is never read
[INFO] [stdout]   --> src/closure_rec.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct ClosureRecMut<'a, State,Input,Output>
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 58 |     state: &'a mut State
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/closure_rec.rs:269:21
[INFO] [stdout]     |
[INFO] [stdout] 269 |                     n => me.call_with_state((i1,i0+i1), (i-1,))
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `state` is never read
[INFO] [stdout]   --> src/closure_rec.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct ClosureRecMut<'a, State,Input,Output>
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 58 |     state: &'a mut State
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "5ddd111d8e4c2e5c8818e5e538bf6047faa4f5b97e50161bf297642ecc2ad5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ddd111d8e4c2e5c8818e5e538bf6047faa4f5b97e50161bf297642ecc2ad5ee", kill_on_drop: false }`
[INFO] [stdout] 5ddd111d8e4c2e5c8818e5e538bf6047faa4f5b97e50161bf297642ecc2ad5ee