[INFO] fetching crate twiggy-opt 0.7.0...
[INFO] testing twiggy-opt-0.7.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate twiggy-opt 0.7.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate twiggy-opt 0.7.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb916c48c2ee9d664bd9c93b18aa0ebcd37f79ef6b615b0309ff856854b75051
[INFO] running `Command { std: "docker" "start" "-a" "fb916c48c2ee9d664bd9c93b18aa0ebcd37f79ef6b615b0309ff856854b75051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb916c48c2ee9d664bd9c93b18aa0ebcd37f79ef6b615b0309ff856854b75051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb916c48c2ee9d664bd9c93b18aa0ebcd37f79ef6b615b0309ff856854b75051", kill_on_drop: false }`
[INFO] [stdout] fb916c48c2ee9d664bd9c93b18aa0ebcd37f79ef6b615b0309ff856854b75051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0e6d134a6c99cf3c70ab4b0a44e64678e7453cf02f584db147e41f0e04b8a97
[INFO] running `Command { std: "docker" "start" "-a" "f0e6d134a6c99cf3c70ab4b0a44e64678e7453cf02f584db147e41f0e04b8a97", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling fixedbitset v0.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling frozen v1.0.0
[INFO] [stderr]    Compiling wasmparser v0.35.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling twiggy-opt v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling structopt v0.3.25
[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 23.05s
[INFO] running `Command { std: "docker" "inspect" "f0e6d134a6c99cf3c70ab4b0a44e64678e7453cf02f584db147e41f0e04b8a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e6d134a6c99cf3c70ab4b0a44e64678e7453cf02f584db147e41f0e04b8a97", kill_on_drop: false }`
[INFO] [stdout] f0e6d134a6c99cf3c70ab4b0a44e64678e7453cf02f584db147e41f0e04b8a97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 343ea16ec574f61cc5728e8df6621429c52a497ef29996ed520f99cb14ebb2fc
[INFO] running `Command { std: "docker" "start" "-a" "343ea16ec574f61cc5728e8df6621429c52a497ef29996ed520f99cb14ebb2fc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling twiggy-opt v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "343ea16ec574f61cc5728e8df6621429c52a497ef29996ed520f99cb14ebb2fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "343ea16ec574f61cc5728e8df6621429c52a497ef29996ed520f99cb14ebb2fc", kill_on_drop: false }`
[INFO] [stdout] 343ea16ec574f61cc5728e8df6621429c52a497ef29996ed520f99cb14ebb2fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f974780604f9daeef368042fe062b9af91df8dca8d002828d7f7435a5061ad32
[INFO] running `Command { std: "docker" "start" "-a" "f974780604f9daeef368042fe062b9af91df8dca8d002828d7f7435a5061ad32", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/twiggy_opt-1c2ae1d41a28b8b1)
[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" "f974780604f9daeef368042fe062b9af91df8dca8d002828d7f7435a5061ad32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f974780604f9daeef368042fe062b9af91df8dca8d002828d7f7435a5061ad32", kill_on_drop: false }`
[INFO] [stdout] f974780604f9daeef368042fe062b9af91df8dca8d002828d7f7435a5061ad32