[INFO] fetching crate simple_generators 0.2.1...
[INFO] testing simple_generators-0.2.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate simple_generators 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate simple_generators 0.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate simple_generators 0.2.1
[INFO] tweaked toml for crates.io crate simple_generators 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_generators 0.2.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simple_generators 0.2.1 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 156ad8b9d99a3bc53cdfb1110578be571b7fd2a4be5524acd4bc985007c6142a
[INFO] running `Command { std: "docker" "start" "-a" "156ad8b9d99a3bc53cdfb1110578be571b7fd2a4be5524acd4bc985007c6142a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "156ad8b9d99a3bc53cdfb1110578be571b7fd2a4be5524acd4bc985007c6142a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156ad8b9d99a3bc53cdfb1110578be571b7fd2a4be5524acd4bc985007c6142a", kill_on_drop: false }`
[INFO] [stdout] 156ad8b9d99a3bc53cdfb1110578be571b7fd2a4be5524acd4bc985007c6142a
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab5bc087d0e217d91f6d2f1aca56fd526d3ebe7140b2294cf68f02714c410913
[INFO] running `Command { std: "docker" "start" "-a" "ab5bc087d0e217d91f6d2f1aca56fd526d3ebe7140b2294cf68f02714c410913", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling simple_generators_adapter v0.2.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling simple_generators_macros v0.2.1
[INFO] [stderr]    Compiling simple_generators v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "ab5bc087d0e217d91f6d2f1aca56fd526d3ebe7140b2294cf68f02714c410913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab5bc087d0e217d91f6d2f1aca56fd526d3ebe7140b2294cf68f02714c410913", kill_on_drop: false }`
[INFO] [stdout] ab5bc087d0e217d91f6d2f1aca56fd526d3ebe7140b2294cf68f02714c410913
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c55405f021a2f76f6233063394f64ba46d7e7435f1e01b9a528cac5e376e74a4
[INFO] running `Command { std: "docker" "start" "-a" "c55405f021a2f76f6233063394f64ba46d7e7435f1e01b9a528cac5e376e74a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_generators v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `gen_adapter` is never used
[INFO] [stdout]   --> tests/lib.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn gen_adapter(n: u64) -> impl Iterator<Item = u64> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `coroutine_trait` is declared but not used
[INFO] [stdout]  --> tests/lib.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "c55405f021a2f76f6233063394f64ba46d7e7435f1e01b9a528cac5e376e74a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c55405f021a2f76f6233063394f64ba46d7e7435f1e01b9a528cac5e376e74a4", kill_on_drop: false }`
[INFO] [stdout] c55405f021a2f76f6233063394f64ba46d7e7435f1e01b9a528cac5e376e74a4
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05592c0a19bf6812a7b391c1c2419d4d9003ecb234c16c36bac91dab65ae993b
[INFO] running `Command { std: "docker" "start" "-a" "05592c0a19bf6812a7b391c1c2419d4d9003ecb234c16c36bac91dab65ae993b", kill_on_drop: false }`
[INFO] [stderr] warning: function `gen_adapter` is never used
[INFO] [stderr]   --> tests/lib.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn gen_adapter(n: u64) -> impl Iterator<Item = u64> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: feature `coroutine_trait` is declared but not used
[INFO] [stderr]  --> tests/lib.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `simple_generators` (test "lib") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_generators-2770748916289cec)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-8ce53d4334ec1f42)
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_macro ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test test_macro_lifetime ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_generators
[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" "05592c0a19bf6812a7b391c1c2419d4d9003ecb234c16c36bac91dab65ae993b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05592c0a19bf6812a7b391c1c2419d4d9003ecb234c16c36bac91dab65ae993b", kill_on_drop: false }`
[INFO] [stdout] 05592c0a19bf6812a7b391c1c2419d4d9003ecb234c16c36bac91dab65ae993b