[INFO] fetching crate core2 0.3.0-alpha.1...
[INFO] testing core2-0.3.0-alpha.1 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate core2 0.3.0-alpha.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate core2 0.3.0-alpha.1 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core2 0.3.0-alpha.1
[INFO] finished tweaking crates.io crate core2 0.3.0-alpha.1
[INFO] tweaked toml for crates.io crate core2 0.3.0-alpha.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20ac01b14adacd60b5a5ab1879bfb33c96dac8c00fffe68f0cad9a73b0234494
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "20ac01b14adacd60b5a5ab1879bfb33c96dac8c00fffe68f0cad9a73b0234494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20ac01b14adacd60b5a5ab1879bfb33c96dac8c00fffe68f0cad9a73b0234494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ac01b14adacd60b5a5ab1879bfb33c96dac8c00fffe68f0cad9a73b0234494", kill_on_drop: false }`
[INFO] [stdout] 20ac01b14adacd60b5a5ab1879bfb33c96dac8c00fffe68f0cad9a73b0234494
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 065935ca4ec8c248c9610f11413cfd735c6b96cb1dc29c90af11fa9a1df0c4fe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "065935ca4ec8c248c9610f11413cfd735c6b96cb1dc29c90af11fa9a1df0c4fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling core2 v0.3.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "065935ca4ec8c248c9610f11413cfd735c6b96cb1dc29c90af11fa9a1df0c4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065935ca4ec8c248c9610f11413cfd735c6b96cb1dc29c90af11fa9a1df0c4fe", kill_on_drop: false }`
[INFO] [stdout] 065935ca4ec8c248c9610f11413cfd735c6b96cb1dc29c90af11fa9a1df0c4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ee18f7a4e6b3890c0b790fd551526fcb15fbee13ec457dbe71843e0aa0606fe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2ee18f7a4e6b3890c0b790fd551526fcb15fbee13ec457dbe71843e0aa0606fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling core2 v0.3.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "2ee18f7a4e6b3890c0b790fd551526fcb15fbee13ec457dbe71843e0aa0606fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee18f7a4e6b3890c0b790fd551526fcb15fbee13ec457dbe71843e0aa0606fe", kill_on_drop: false }`
[INFO] [stdout] 2ee18f7a4e6b3890c0b790fd551526fcb15fbee13ec457dbe71843e0aa0606fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 056d52b5e97a1024722d1a35cb2c86ec74e1de6bc367d5bb8a0fede8167796b8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "056d52b5e97a1024722d1a35cb2c86ec74e1de6bc367d5bb8a0fede8167796b8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/core2-84983f82042ea56a)
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-ebfd5c82a824761b)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test chain_bufread ... ok
[INFO] [stdout] test read_exact ... ok
[INFO] [stdout] test take_eof ... ok
[INFO] [stdout] test test_writer_read_from_one_buf ... ok
[INFO] [stdout] test read_exact_slice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests core2
[INFO] [stdout] 
[INFO] [stdout] running 48 tests
[INFO] [stdout] test src/io/traits.rs - io::traits::Read (line 53) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead::fill_buf (line 865) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T, U>::get_mut (line 970) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::by_ref (line 252) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read (line 26) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::bytes (line 297) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead (line 825) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead (line 805) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T, U>::get_ref (line 944) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor (line 25) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T, U>::into_inner (line 922) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::chain (line 330) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::get_ref (line 1138) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::new (line 81) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::into_inner (line 1114) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::set_limit (line 1090) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::by_ref (line 680) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Seek (line 714) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::get_mut (line 1166) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::read (line 127) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + 'a>::from (line 113) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::limit (line 1064) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write (line 460) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::take (line 374) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::read_exact (line 205) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync + 'a>::from (line 146) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::into_inner (line 96) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error>::from (line 307) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write_all (line 574) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error>::from (line 267) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error>::from (line 221) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write_fmt (line 622) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write (line 513) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync + 'a>::from (line 286) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::kind (line 305) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::flush (line 539) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Result (line 26) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync + 'a>::from (line 244) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::new (line 214) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::get_ref (line 113) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::into_inner (line 276) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::set_position (line 173) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::get_mut (line 133) ... ok
[INFO] [stdout] test src/error.rs - error::Error::source (line 40) ... ok
[INFO] [stdout] test src/error.rs - error::Box<dyn Error + Send + Sync>::from (line 183) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::from (line 189) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::get_ref (line 242) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::position (line 150) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 48 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.71s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "056d52b5e97a1024722d1a35cb2c86ec74e1de6bc367d5bb8a0fede8167796b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "056d52b5e97a1024722d1a35cb2c86ec74e1de6bc367d5bb8a0fede8167796b8", kill_on_drop: false }`
[INFO] [stdout] 056d52b5e97a1024722d1a35cb2c86ec74e1de6bc367d5bb8a0fede8167796b8