[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#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkb0o%2Fconstructivist" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkb0o/constructivist on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "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-6-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" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd2c91f941c0606f4cfe7f0ed61d90fa16d30a1a00260a21b8aeea4536f8413a
[INFO] running `Command { std: "docker" "start" "-a" "fd2c91f941c0606f4cfe7f0ed61d90fa16d30a1a00260a21b8aeea4536f8413a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd2c91f941c0606f4cfe7f0ed61d90fa16d30a1a00260a21b8aeea4536f8413a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd2c91f941c0606f4cfe7f0ed61d90fa16d30a1a00260a21b8aeea4536f8413a", kill_on_drop: false }`
[INFO] [stdout] fd2c91f941c0606f4cfe7f0ed61d90fa16d30a1a00260a21b8aeea4536f8413a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed99bc07f5fec32815a1446c0c6b4507ccdb54a01cb487bdf8973382055c3bc9
[INFO] running `Command { std: "docker" "start" "-a" "ed99bc07f5fec32815a1446c0c6b4507ccdb54a01cb487bdf8973382055c3bc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.0
[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]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.37
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking constructivism_macro_gen v0.3.0 (/opt/rustwide/workdir/crates/constructivism_macro_gen)
[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]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.79s
[INFO] running `Command { std: "docker" "inspect" "ed99bc07f5fec32815a1446c0c6b4507ccdb54a01cb487bdf8973382055c3bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed99bc07f5fec32815a1446c0c6b4507ccdb54a01cb487bdf8973382055c3bc9", kill_on_drop: false }`
[INFO] [stdout] ed99bc07f5fec32815a1446c0c6b4507ccdb54a01cb487bdf8973382055c3bc9