[INFO] fetching crate twiggy-opt 0.7.0...
[INFO] testing twiggy-opt-0.7.0 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate twiggy-opt 0.7.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate twiggy-opt 0.7.0 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twiggy-opt 0.7.0
[INFO] finished tweaking crates.io crate twiggy-opt 0.7.0
[INFO] tweaked toml for crates.io crate twiggy-opt 0.7.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmparser v0.35.3
[INFO] [stderr]   Downloaded twiggy-ir v0.7.0
[INFO] [stderr]   Downloaded twiggy-traits v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fb5454a4f416599ef41923fa0c5b72c5eed397c6fff7541604281b028608f88
[INFO] running `Command { std: "docker" "start" "-a" "6fb5454a4f416599ef41923fa0c5b72c5eed397c6fff7541604281b028608f88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fb5454a4f416599ef41923fa0c5b72c5eed397c6fff7541604281b028608f88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb5454a4f416599ef41923fa0c5b72c5eed397c6fff7541604281b028608f88", kill_on_drop: false }`
[INFO] [stdout] 6fb5454a4f416599ef41923fa0c5b72c5eed397c6fff7541604281b028608f88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5a291628b5be7a05b26d88bbcd3216b01fdffd77efa560959d418843a810b15
[INFO] running `Command { std: "docker" "start" "-a" "a5a291628b5be7a05b26d88bbcd3216b01fdffd77efa560959d418843a810b15", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling gimli v0.27.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling object v0.30.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling frozen v1.0.0
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling wasmparser v0.35.3
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling twiggy-opt v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling twiggy-ir v0.7.0
[INFO] [stderr]    Compiling twiggy-traits v0.7.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 53s
[INFO] running `Command { std: "docker" "inspect" "a5a291628b5be7a05b26d88bbcd3216b01fdffd77efa560959d418843a810b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a291628b5be7a05b26d88bbcd3216b01fdffd77efa560959d418843a810b15", kill_on_drop: false }`
[INFO] [stdout] a5a291628b5be7a05b26d88bbcd3216b01fdffd77efa560959d418843a810b15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ae29b35f320e5e94f4d8045340d47436f435aaeb1f75b2f2244745b4c76908a
[INFO] running `Command { std: "docker" "start" "-a" "9ae29b35f320e5e94f4d8045340d47436f435aaeb1f75b2f2244745b4c76908a", kill_on_drop: false }`
[INFO] [stderr]    Compiling twiggy-opt v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "9ae29b35f320e5e94f4d8045340d47436f435aaeb1f75b2f2244745b4c76908a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ae29b35f320e5e94f4d8045340d47436f435aaeb1f75b2f2244745b4c76908a", kill_on_drop: false }`
[INFO] [stdout] 9ae29b35f320e5e94f4d8045340d47436f435aaeb1f75b2f2244745b4c76908a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b6fb4f0cd021172f4b6a9c401d351c2cacf36dcb348f084d46cc49345d45247
[INFO] running `Command { std: "docker" "start" "-a" "5b6fb4f0cd021172f4b6a9c401d351c2cacf36dcb348f084d46cc49345d45247", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests opt.rs (/opt/rustwide/target/debug/deps/twiggy_opt-930bc264caa6fb0c)
[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]    Doc-tests twiggy-opt
[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] running `Command { std: "docker" "inspect" "5b6fb4f0cd021172f4b6a9c401d351c2cacf36dcb348f084d46cc49345d45247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6fb4f0cd021172f4b6a9c401d351c2cacf36dcb348f084d46cc49345d45247", kill_on_drop: false }`
[INFO] [stdout] 5b6fb4f0cd021172f4b6a9c401d351c2cacf36dcb348f084d46cc49345d45247