[INFO] crate walrus 0.18.0 is already in cache
[INFO] testing walrus-0.18.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate walrus 0.18.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate walrus 0.18.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate walrus 0.18.0
[INFO] finished tweaking crates.io crate walrus 0.18.0
[INFO] tweaked toml for crates.io crate walrus 0.18.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate walrus 0.18.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebf9cb9c05d5981938ada1e0f4b319e7495f19c299f9f6012e96b1f66717796d
[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" "ebf9cb9c05d5981938ada1e0f4b319e7495f19c299f9f6012e96b1f66717796d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebf9cb9c05d5981938ada1e0f4b319e7495f19c299f9f6012e96b1f66717796d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebf9cb9c05d5981938ada1e0f4b319e7495f19c299f9f6012e96b1f66717796d", kill_on_drop: false }`
[INFO] [stdout] ebf9cb9c05d5981938ada1e0f4b319e7495f19c299f9f6012e96b1f66717796d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cccb89f5ce1c2186b6d0b97acfbe274a7f3cb09216f0e12980e1536c3c71e38
[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" "6cccb89f5ce1c2186b6d0b97acfbe274a7f3cb09216f0e12980e1536c3c71e38", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling walrus-macro v0.18.0
[INFO] [stderr]    Compiling walrus v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.47s
[INFO] running `Command { std: "docker" "inspect" "6cccb89f5ce1c2186b6d0b97acfbe274a7f3cb09216f0e12980e1536c3c71e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cccb89f5ce1c2186b6d0b97acfbe274a7f3cb09216f0e12980e1536c3c71e38", kill_on_drop: false }`
[INFO] [stdout] 6cccb89f5ce1c2186b6d0b97acfbe274a7f3cb09216f0e12980e1536c3c71e38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30a4ac8e57cdfa6cd0c5b5b7f1dc61889f07ba953d2cf44822ff94e4eac9d678
[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" "30a4ac8e57cdfa6cd0c5b5b7f1dc61889f07ba953d2cf44822ff94e4eac9d678", kill_on_drop: false }`
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling walrus v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 39.66s
[INFO] running `Command { std: "docker" "inspect" "30a4ac8e57cdfa6cd0c5b5b7f1dc61889f07ba953d2cf44822ff94e4eac9d678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30a4ac8e57cdfa6cd0c5b5b7f1dc61889f07ba953d2cf44822ff94e4eac9d678", kill_on_drop: false }`
[INFO] [stdout] 30a4ac8e57cdfa6cd0c5b5b7f1dc61889f07ba953d2cf44822ff94e4eac9d678
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f99450767bf57ffcebeb4364aa0a9688faa1b09726400b5aeb5357277e3810cc
[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" "f99450767bf57ffcebeb4364aa0a9688faa1b09726400b5aeb5357277e3810cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/walrus-ed3700834848f667
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test module::exports::tests::get_exported_table ... ok
[INFO] [stdout] test module::exports::tests::delete ... ok
[INFO] [stdout] test module::exports::tests::get_exported_func ... ok
[INFO] [stdout] test tombstone_arena::tests::can_delete ... ok
[INFO] [stdout] test module::exports::tests::get_exported_global ... ok
[INFO] [stderr]    Doc-tests walrus
[INFO] [stdout] test module::exports::tests::get_exported_memory ... ok
[INFO] [stdout] test module::exports::tests::get_exported_global_should_return_none_for_unknown_global_id ... ok
[INFO] [stdout] test module::exports::tests::iter_mut_can_update_export_item ... ok
[INFO] [stdout] test module::exports::tests::get_exported_memory_should_return_none_for_unknown_memory_id ... ok
[INFO] [stdout] test ir::traversals::tests::dfs_pre_order_mut ... ok
[INFO] [stdout] test module::exports::tests::get_exported_table_should_return_none_for_unknown_table_id ... ok
[INFO] [stdout] test module::exports::tests::get_exported_func_should_return_none_for_unknown_function_id ... ok
[INFO] [stdout] test ir::traversals::tests::dfs_in_order ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/ir/mod.rs - ir::Instr (line 246) ... ignored
[INFO] [stdout] test src/ir/mod.rs - ir::Instr (line 255) ... ignored
[INFO] [stdout] test src/ir/traversals.rs - ir::traversals::dfs_pre_order_mut (line 155) ... ok
[INFO] [stdout] test src/ir/traversals.rs - ir::traversals::dfs_in_order (line 33) ... ok
[INFO] [stdout] test src/dot.rs - dot::Module::write_graphviz_dot (line 17) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::InstrSeqBuilder::loop_ (line 306) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::InstrSeqBuilder::block (line 234) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::FunctionBuilder::dangling_instr_seq (line 110) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::InstrSeqBuilder::if_else (line 380) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::FunctionBuilder::instr_seq (line 71) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::InstrSeqBuilder::block_at (line 267) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::InstrSeqBuilder::if_else_at (line 436) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::InstrSeqBuilder::loop_at (line 340) ... ok
[INFO] [stdout] test src/function_builder.rs - function_builder::FunctionBuilder::finish (line 141) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f99450767bf57ffcebeb4364aa0a9688faa1b09726400b5aeb5357277e3810cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99450767bf57ffcebeb4364aa0a9688faa1b09726400b5aeb5357277e3810cc", kill_on_drop: false }`
[INFO] [stdout] f99450767bf57ffcebeb4364aa0a9688faa1b09726400b5aeb5357277e3810cc