[INFO] fetching crate is_empty 0.3.0...
[INFO] testing is_empty-0.3.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate is_empty 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate is_empty 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate is_empty 0.3.0
[INFO] tweaked toml for crates.io crate is_empty 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate is_empty 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4ecc60ff34f8c437e65ecd5a118ed6c0be3c7bfe705ea9e8be56d278d077b7a4
[INFO] running `Command { std: "docker" "start" "-a" "4ecc60ff34f8c437e65ecd5a118ed6c0be3c7bfe705ea9e8be56d278d077b7a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ecc60ff34f8c437e65ecd5a118ed6c0be3c7bfe705ea9e8be56d278d077b7a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ecc60ff34f8c437e65ecd5a118ed6c0be3c7bfe705ea9e8be56d278d077b7a4", kill_on_drop: false }`
[INFO] [stdout] 4ecc60ff34f8c437e65ecd5a118ed6c0be3c7bfe705ea9e8be56d278d077b7a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] be3fd0e12ea948bcc04974e02262e983fa89d2a4a3df069b46f49942fc843c3b
[INFO] running `Command { std: "docker" "start" "-a" "be3fd0e12ea948bcc04974e02262e983fa89d2a4a3df069b46f49942fc843c3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling is_empty_derive v0.1.0
[INFO] [stderr]    Compiling is_empty v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "be3fd0e12ea948bcc04974e02262e983fa89d2a4a3df069b46f49942fc843c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be3fd0e12ea948bcc04974e02262e983fa89d2a4a3df069b46f49942fc843c3b", kill_on_drop: false }`
[INFO] [stdout] be3fd0e12ea948bcc04974e02262e983fa89d2a4a3df069b46f49942fc843c3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d47296d369c536c1033af38e86490b7ab8d0f4679de679b3ad2511196fd1a8cf
[INFO] running `Command { std: "docker" "start" "-a" "d47296d369c536c1033af38e86490b7ab8d0f4679de679b3ad2511196fd1a8cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling is_empty v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `is_option_really_empty`
[INFO] [stdout]  --> tests/option_wrapped.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use is_empty::{is_option_really_empty, IsEmpty};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.95s
[INFO] running `Command { std: "docker" "inspect" "d47296d369c536c1033af38e86490b7ab8d0f4679de679b3ad2511196fd1a8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47296d369c536c1033af38e86490b7ab8d0f4679de679b3ad2511196fd1a8cf", kill_on_drop: false }`
[INFO] [stdout] d47296d369c536c1033af38e86490b7ab8d0f4679de679b3ad2511196fd1a8cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d92427e118147b8a9bfeae7c48b4d717d6c87ae4a9f0b0864b43b4d590660fca
[INFO] running `Command { std: "docker" "start" "-a" "d92427e118147b8a9bfeae7c48b4d717d6c87ae4a9f0b0864b43b4d590660fca", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `is_option_really_empty`
[INFO] [stderr]  --> tests/option_wrapped.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use is_empty::{is_option_really_empty, IsEmpty};
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `is_empty` (test "option_wrapped") generated 1 warning (run `cargo fix --test "option_wrapped" -p is_empty` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/is_empty-cb23287e66469d22)
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-c2a0ded11606c730)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_is_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/is_empty_attr.rs (/opt/rustwide/target/debug/deps/is_empty_attr-459fd4528ddad352)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_is_empty_for_vec_with_attr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/option_wrapped.rs (/opt/rustwide/target/debug/deps/option_wrapped-0464528278b86d75)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_option_wrapped ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/std_impls.rs (/opt/rustwide/target/debug/deps/std_impls-dd3bdbd53edb7fd6)
[INFO] [stderr]      Running tests/test_nested.rs (/opt/rustwide/target/debug/deps/test_nested-f21e494653702bbe)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_is_empty_nested ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests is_empty
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - (line 94) ... ok
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] test src/lib.rs - is_empty (line 151) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/lib.rs - (line 72) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d92427e118147b8a9bfeae7c48b4d717d6c87ae4a9f0b0864b43b4d590660fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d92427e118147b8a9bfeae7c48b4d717d6c87ae4a9f0b0864b43b4d590660fca", kill_on_drop: false }`
[INFO] [stdout] d92427e118147b8a9bfeae7c48b4d717d6c87ae4a9f0b0864b43b4d590660fca