[INFO] cloning repository https://github.com/jkb0o/constructivist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkb0o/constructivist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkb0o%2Fconstructivist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkb0o%2Fconstructivist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b92c0331ad2c9a32d3bffe3adcf74a604e2678d4
[INFO] checking jkb0o/constructivist against master#aa067fb984d36462548bb785da221bfaf38253f0 for pr-122470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkb0o%2Fconstructivist" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkb0o/constructivist 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 git repo https://github.com/jkb0o/constructivist
[INFO] finished tweaking git repo https://github.com/jkb0o/constructivist
[INFO] tweaked toml for git repo https://github.com/jkb0o/constructivist written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jkb0o/constructivist 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 serde_spanned v0.6.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded tuple_utils v0.4.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5271fe44b1795c99a6b9b650ca660f1ccf4a056927c87d4580c8bbcdcb68ca6
[INFO] running `Command { std: "docker" "start" "-a" "c5271fe44b1795c99a6b9b650ca660f1ccf4a056927c87d4580c8bbcdcb68ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5271fe44b1795c99a6b9b650ca660f1ccf4a056927c87d4580c8bbcdcb68ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5271fe44b1795c99a6b9b650ca660f1ccf4a056927c87d4580c8bbcdcb68ca6", kill_on_drop: false }`
[INFO] [stdout] c5271fe44b1795c99a6b9b650ca660f1ccf4a056927c87d4580c8bbcdcb68ca6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0eee6acf544af1e169da311c77dc20ce026f2633925d9697cc955ae820989f3b
[INFO] running `Command { std: "docker" "start" "-a" "0eee6acf544af1e169da311c77dc20ce026f2633925d9697cc955ae820989f3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]     Checking unicode-ident v1.0.11
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]     Checking tuple_utils v0.4.0
[INFO] [stderr]     Checking stranger v0.1.0 (/opt/rustwide/workdir/examples/stranger)
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.37
[INFO] [stderr]     Checking constructivism_macro_gen v0.3.0 (/opt/rustwide/workdir/crates/constructivism_macro_gen)
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> crates/constructivism_macro_gen/src/lib.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{self, parse::Parse, parse_macro_input, LitStr, Token, Type};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> crates/constructivism_macro_gen/src/lib.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{self, parse::Parse, parse_macro_input, LitStr, Token, Type};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> crates/constructivism_macro_gen/src/lib.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{self, parse::Parse, parse_macro_input, LitStr, Token, Type};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking constructivist v0.3.0 (/opt/rustwide/workdir/crates/constructivist)
[INFO] [stderr]     Checking constructivism_macro v0.3.0 (/opt/rustwide/workdir/crates/constructivism_macro)
[INFO] [stderr]     Checking constructivism v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/core.rs:126:31
[INFO] [stdout]     |
[INFO] [stdout] 126 | 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] 126 | pub struct NothingSetters<'a>(());
[INFO] [stdout]     |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/core.rs:126:31
[INFO] [stdout]     |
[INFO] [stdout] 126 | 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] 126 | 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 9.39s
[INFO] running `Command { std: "docker" "inspect" "0eee6acf544af1e169da311c77dc20ce026f2633925d9697cc955ae820989f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eee6acf544af1e169da311c77dc20ce026f2633925d9697cc955ae820989f3b", kill_on_drop: false }`
[INFO] [stdout] 0eee6acf544af1e169da311c77dc20ce026f2633925d9697cc955ae820989f3b