[INFO] fetching crate constructivism 0.0.2...
[INFO] checking constructivism-0.0.2 against master#aa067fb984d36462548bb785da221bfaf38253f0 for pr-122470
[INFO] extracting crate constructivism 0.0.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate constructivism 0.0.2 on toolchain aa067fb984d36462548bb785da221bfaf38253f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate constructivism 0.0.2
[INFO] finished tweaking crates.io crate constructivism 0.0.2
[INFO] tweaked toml for crates.io crate constructivism 0.0.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate constructivism 0.0.2 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" "+aa067fb984d36462548bb785da221bfaf38253f0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tuple_utils v0.4.0
[INFO] [stderr]   Downloaded constructivism_macro_gen v0.1.0
[INFO] [stderr]   Downloaded constructivism_macro v0.0.1
[INFO] [stderr]   Downloaded constructivist v0.0.1
[INFO] [stderr]   Downloaded winnow v0.5.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+aa067fb984d36462548bb785da221bfaf38253f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b9127294b60557927205609df75b196ff1decfb21c38a13fd3605a0129b2bc7
[INFO] running `Command { std: "docker" "start" "-a" "5b9127294b60557927205609df75b196ff1decfb21c38a13fd3605a0129b2bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b9127294b60557927205609df75b196ff1decfb21c38a13fd3605a0129b2bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9127294b60557927205609df75b196ff1decfb21c38a13fd3605a0129b2bc7", kill_on_drop: false }`
[INFO] [stdout] 5b9127294b60557927205609df75b196ff1decfb21c38a13fd3605a0129b2bc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+aa067fb984d36462548bb785da221bfaf38253f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b83927f51feb3c6a2879fb6ba104036dcbcd95d94eed013ad3788dbeee6ece36
[INFO] running `Command { std: "docker" "start" "-a" "b83927f51feb3c6a2879fb6ba104036dcbcd95d94eed013ad3788dbeee6ece36", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]     Checking tuple_utils v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling constructivism_macro_gen v0.1.0
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling constructivist v0.0.1
[INFO] [stderr]    Compiling constructivism_macro v0.0.1
[INFO] [stderr]     Checking constructivism v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/core.rs:104:31
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct NothingSetters<'a>(&'a mut ());
[INFO] [stdout]     |            --------------     ^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct NothingSetters<'a>(());
[INFO] [stdout]     |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/core.rs:104:31
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct NothingSetters<'a>(&'a mut ());
[INFO] [stdout]     |            --------------     ^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct NothingSetters<'a>(());
[INFO] [stdout]     |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.75s
[INFO] running `Command { std: "docker" "inspect" "b83927f51feb3c6a2879fb6ba104036dcbcd95d94eed013ad3788dbeee6ece36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83927f51feb3c6a2879fb6ba104036dcbcd95d94eed013ad3788dbeee6ece36", kill_on_drop: false }`
[INFO] [stdout] b83927f51feb3c6a2879fb6ba104036dcbcd95d94eed013ad3788dbeee6ece36