[INFO] crate walrus 0.8.0 is already in cache
[INFO] extracting crate walrus 0.8.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/walrus/0.8.0
[INFO] extracting crate walrus 0.8.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/walrus/0.8.0
[INFO] validating manifest of walrus-0.8.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of walrus-0.8.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing walrus-0.8.0
[INFO] finished frobbing walrus-0.8.0
[INFO] frobbed toml for walrus-0.8.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/walrus/0.8.0/Cargo.toml
[INFO] started frobbing walrus-0.8.0
[INFO] finished frobbing walrus-0.8.0
[INFO] frobbed toml for walrus-0.8.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/walrus/0.8.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing walrus-0.8.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/walrus/0.8.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a1fd8b0e5cfcef29755d56d9d77564157989963a57f58ea3ec01691be156817f
[INFO] running `"docker" "start" "-a" "a1fd8b0e5cfcef29755d56d9d77564157989963a57f58ea3ec01691be156817f"`
[INFO] [stderr]    Compiling wasmparser v0.30.0
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling walrus-macro v0.8.0
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling walrus v0.8.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.08s
[INFO] running `"docker" "inspect" "a1fd8b0e5cfcef29755d56d9d77564157989963a57f58ea3ec01691be156817f"`
[INFO] running `"docker" "rm" "-f" "a1fd8b0e5cfcef29755d56d9d77564157989963a57f58ea3ec01691be156817f"`
[INFO] [stdout] a1fd8b0e5cfcef29755d56d9d77564157989963a57f58ea3ec01691be156817f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/walrus/0.8.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e0644f6d63dd99db224b3b1c74f9b0c4bafb3abb6fdb397715ba84d024023a87
[INFO] running `"docker" "start" "-a" "e0644f6d63dd99db224b3b1c74f9b0c4bafb3abb6fdb397715ba84d024023a87"`
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling walrus v0.8.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.76s
[INFO] running `"docker" "inspect" "e0644f6d63dd99db224b3b1c74f9b0c4bafb3abb6fdb397715ba84d024023a87"`
[INFO] running `"docker" "rm" "-f" "e0644f6d63dd99db224b3b1c74f9b0c4bafb3abb6fdb397715ba84d024023a87"`
[INFO] [stdout] e0644f6d63dd99db224b3b1c74f9b0c4bafb3abb6fdb397715ba84d024023a87
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/walrus/0.8.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6cb5b40e6573177a7727a5ca9b5fd6cba37ca5cd2e7721259c1ee607aa157724
[INFO] running `"docker" "start" "-a" "6cb5b40e6573177a7727a5ca9b5fd6cba37ca5cd2e7721259c1ee607aa157724"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/walrus-f11621d37d2d717f
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tombstone_arena::tests::can_delete ... ok
[INFO] [stderr]    Doc-tests walrus
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/ir/mod.rs - ir::Expr (line 112) ... ignored
[INFO] [stdout] test src/ir/mod.rs - ir::Expr (line 121) ... ignored
[INFO] [stdout] test src/function_builder.rs - function_builder::FunctionBuilder::block (line 35) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6cb5b40e6573177a7727a5ca9b5fd6cba37ca5cd2e7721259c1ee607aa157724"`
[INFO] running `"docker" "rm" "-f" "6cb5b40e6573177a7727a5ca9b5fd6cba37ca5cd2e7721259c1ee607aa157724"`
[INFO] [stdout] 6cb5b40e6573177a7727a5ca9b5fd6cba37ca5cd2e7721259c1ee607aa157724