[INFO] fetching crate constructivism 0.3.0...
[INFO] testing constructivism-0.3.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate constructivism 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate constructivism 0.3.0
[INFO] finished tweaking crates.io crate constructivism 0.3.0
[INFO] tweaked toml for crates.io crate constructivism 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate constructivism 0.3.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate constructivism 0.3.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e83b80acb8f8aab22f7de6f04732d031e66ec37d943a37d706c41450c482b3af
[INFO] running `Command { std: "docker" "start" "-a" "e83b80acb8f8aab22f7de6f04732d031e66ec37d943a37d706c41450c482b3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e83b80acb8f8aab22f7de6f04732d031e66ec37d943a37d706c41450c482b3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e83b80acb8f8aab22f7de6f04732d031e66ec37d943a37d706c41450c482b3af", kill_on_drop: false }`
[INFO] [stdout] e83b80acb8f8aab22f7de6f04732d031e66ec37d943a37d706c41450c482b3af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97021c7877336063e0f273c18e7152aa163165923a319d8e1f732708782bfb8e
[INFO] running `Command { std: "docker" "start" "-a" "97021c7877336063e0f273c18e7152aa163165923a319d8e1f732708782bfb8e", 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 hashbrown v0.14.0
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling tuple_utils v0.4.0
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[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 v0.3.0
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling constructivist v0.3.0
[INFO] [stderr]    Compiling constructivism_macro v0.3.0
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.39s
[INFO] running `Command { std: "docker" "inspect" "97021c7877336063e0f273c18e7152aa163165923a319d8e1f732708782bfb8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97021c7877336063e0f273c18e7152aa163165923a319d8e1f732708782bfb8e", kill_on_drop: false }`
[INFO] [stdout] 97021c7877336063e0f273c18e7152aa163165923a319d8e1f732708782bfb8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e07c76e53bdc168ea55f0ef4e754076cd4e097edd039de79d9d15c1740ff26d9
[INFO] running `Command { std: "docker" "start" "-a" "e07c76e53bdc168ea55f0ef4e754076cd4e097edd039de79d9d15c1740ff26d9", kill_on_drop: false }`
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "e07c76e53bdc168ea55f0ef4e754076cd4e097edd039de79d9d15c1740ff26d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07c76e53bdc168ea55f0ef4e754076cd4e097edd039de79d9d15c1740ff26d9", kill_on_drop: false }`
[INFO] [stdout] e07c76e53bdc168ea55f0ef4e754076cd4e097edd039de79d9d15c1740ff26d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 427bf29e87c3ce238a2bb8065d981320018de9b23de4354d7fb1c8c9d324be5a
[INFO] running `Command { std: "docker" "start" "-a" "427bf29e87c3ce238a2bb8065d981320018de9b23de4354d7fb1c8c9d324be5a", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/core.rs:126:31
[INFO] [stderr]     |
[INFO] [stderr] 126 | pub struct NothingSetters<'a>(&'a mut ());
[INFO] [stderr]     |            --------------     ^^^^^^^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing this field
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `constructivism` (lib) generated 1 warning
[INFO] [stderr] warning: `constructivism` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/constructivism-a6b9602835b8c3a0)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests constructivism
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "427bf29e87c3ce238a2bb8065d981320018de9b23de4354d7fb1c8c9d324be5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "427bf29e87c3ce238a2bb8065d981320018de9b23de4354d7fb1c8c9d324be5a", kill_on_drop: false }`
[INFO] [stdout] 427bf29e87c3ce238a2bb8065d981320018de9b23de4354d7fb1c8c9d324be5a