[INFO] fetching crate objc2-encode 4.1.0...
[INFO] testing objc2-encode-4.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate objc2-encode 4.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate objc2-encode 4.1.0
[INFO] finished tweaking crates.io crate objc2-encode 4.1.0
[INFO] tweaked toml for crates.io crate objc2-encode 4.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate objc2-encode 4.1.0 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 objc2-encode 4.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6524936a53fa10387a7c830adae377407c050c684bdeccb77476af73601b6a19
[INFO] running `Command { std: "docker" "start" "-a" "6524936a53fa10387a7c830adae377407c050c684bdeccb77476af73601b6a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6524936a53fa10387a7c830adae377407c050c684bdeccb77476af73601b6a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6524936a53fa10387a7c830adae377407c050c684bdeccb77476af73601b6a19", kill_on_drop: false }`
[INFO] [stdout] 6524936a53fa10387a7c830adae377407c050c684bdeccb77476af73601b6a19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fa7a14f1935bab3ef21fcc9f3d5085818214c73204ca8b8d4373aa42d96324ad
[INFO] running `Command { std: "docker" "start" "-a" "fa7a14f1935bab3ef21fcc9f3d5085818214c73204ca8b8d4373aa42d96324ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling objc2-encode v4.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `n` is never read
[INFO] [stdout]   --> src/static_str.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         n /= 10;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "fa7a14f1935bab3ef21fcc9f3d5085818214c73204ca8b8d4373aa42d96324ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7a14f1935bab3ef21fcc9f3d5085818214c73204ca8b8d4373aa42d96324ad", kill_on_drop: false }`
[INFO] [stdout] fa7a14f1935bab3ef21fcc9f3d5085818214c73204ca8b8d4373aa42d96324ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 333647a8e5649d60a35732939bd0d0a73165cc0bf452362ff206bb591c9056c1
[INFO] running `Command { std: "docker" "start" "-a" "333647a8e5649d60a35732939bd0d0a73165cc0bf452362ff206bb591c9056c1", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `n` is never read
[INFO] [stdout]   --> src/static_str.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         n /= 10;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling objc2-encode v4.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `n` is never read
[INFO] [stdout]   --> src/static_str.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         n /= 10;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "333647a8e5649d60a35732939bd0d0a73165cc0bf452362ff206bb591c9056c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333647a8e5649d60a35732939bd0d0a73165cc0bf452362ff206bb591c9056c1", kill_on_drop: false }`
[INFO] [stdout] 333647a8e5649d60a35732939bd0d0a73165cc0bf452362ff206bb591c9056c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3a5bccd39723e731ca16ebae4c069f09987c208542026b178889a1c7d495bad3
[INFO] running `Command { std: "docker" "start" "-a" "3a5bccd39723e731ca16ebae4c069f09987c208542026b178889a1c7d495bad3", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `n` is never read
[INFO] [stderr]   --> src/static_str.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         n /= 10;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `objc2-encode` (lib) generated 1 warning
[INFO] [stderr] warning: `objc2-encode` (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/objc2_encode-b1463778fe8fc6ad)
[INFO] [stdout] 
[INFO] [stdout] running 45 tests
[INFO] [stdout] test encoding::tests::array ... ok
[INFO] [stdout] test encoding::tests::atomic ... ok
[INFO] [stdout] test encoding::tests::bitfield ... ok
[INFO] [stdout] test encoding::tests::atomic_string ... ok
[INFO] [stdout] test encoding::tests::cgl_context_obj ... ok
[INFO] [stdout] test encoding::tests::atomic_struct ... ok
[INFO] [stdout] test encoding::tests::bitfield_gnustep ... ok
[INFO] [stdout] test encoding::tests::block ... ok
[INFO] [stdout] test encoding::tests::char ... ok
[INFO] [stdout] test encoding::tests::class ... ok
[INFO] [stdout] test encoding::tests::double ... ok
[INFO] [stdout] test encoding::tests::empty_struct ... ok
[INFO] [stdout] test encoding::tests::identifier ... ok
[INFO] [stdout] test encoding::tests::int ... ok
[INFO] [stdout] test encoding::tests::nested ... ok
[INFO] [stdout] test encoding::tests::nested_pointer ... ok
[INFO] [stdout] test encoding::tests::none ... ok
[INFO] [stdout] test encoding::tests::none_in_array ... ok
[INFO] [stdout] test encoding::tests::none_in_pointer ... ok
[INFO] [stdout] test encoding::tests::none_in_pointer_in_array ... ok
[INFO] [stdout] test encoding::tests::none_in_struct ... ok
[INFO] [stdout] test encoding::tests::object ... ok
[INFO] [stdout] test encoding::tests::object_unknown_in_struct ... ok
[INFO] [stdout] test encoding::tests::pointer ... ok
[INFO] [stdout] test encoding::tests::pointer_pointer_struct ... ok
[INFO] [stdout] test encoding::tests::qualifiers ... ok
[INFO] [stdout] test encoding::tests::pointer_struct ... ok
[INFO] [stdout] test encoding::tests::smoke ... ok
[INFO] [stdout] test encoding::tests::struct_ ... ok
[INFO] [stdout] test encoding::tests::test_send_sync ... ok
[INFO] [stdout] test encoding::tests::various ... ok
[INFO] [stdout] test encoding::tests::union_ ... ok
[INFO] [stdout] test encoding::tests::unknown ... ok
[INFO] [stdout] test encoding_box::tests::parse_part_of_string ... ok
[INFO] [stdout] test encoding_box::tests::eq_complex_encodings ... ok
[INFO] [stdout] test encoding_box::tests::eq_encodings ... ok
[INFO] [stdout] test encoding_box::tests::parse_atomic_struct ... ok
[INFO] [stdout] test static_str::tests::test_const_int_str ... ok
[INFO] [stdout] test parse::tests::parse_closing ... ok
[INFO] [stdout] test parse::tests::parse_container ... ok
[INFO] [stdout] test encoding_box::tests::struct_nested_in_pointer ... ok
[INFO] [stdout] test parse::tests::parse_bitfield ... ok
[INFO] [stdout] test encoding::tests::struct_unicode - should panic ... ok
[INFO] [stdout] test encoding::tests::struct_empty - should panic ... ok
[INFO] [stderr]    Doc-tests objc2_encode
[INFO] [stdout] test encoding::tests::union_invalid_identifier - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 45 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/encoding.rs - encoding::Encoding (line 19) ... ok
[INFO] [stdout] test src/encoding.rs - encoding::Encoding (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3a5bccd39723e731ca16ebae4c069f09987c208542026b178889a1c7d495bad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a5bccd39723e731ca16ebae4c069f09987c208542026b178889a1c7d495bad3", kill_on_drop: false }`
[INFO] [stdout] 3a5bccd39723e731ca16ebae4c069f09987c208542026b178889a1c7d495bad3