[INFO] fetching crate from_variant 0.1.3...
[INFO] testing from_variant-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate from_variant 0.1.3 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate from_variant 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate from_variant 0.1.3
[INFO] finished tweaking crates.io crate from_variant 0.1.3
[INFO] tweaked toml for crates.io crate from_variant 0.1.3 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pmutil v0.5.3
[INFO] [stderr]   Downloaded swc_macros_common v0.3.3
[INFO] [stderr]   Downloaded syn v1.0.65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abbced654575867f2d63c15b602425a88533cd64037b52a72cc546e95c036e14
[INFO] running `Command { std: "docker" "start" "-a" "abbced654575867f2d63c15b602425a88533cd64037b52a72cc546e95c036e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abbced654575867f2d63c15b602425a88533cd64037b52a72cc546e95c036e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abbced654575867f2d63c15b602425a88533cd64037b52a72cc546e95c036e14", kill_on_drop: false }`
[INFO] [stdout] abbced654575867f2d63c15b602425a88533cd64037b52a72cc546e95c036e14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f94a277c8710f716e1b106ba4749196e65d0925b2c0f4529d9a6bfd06621505f
[INFO] running `Command { std: "docker" "start" "-a" "f94a277c8710f716e1b106ba4749196e65d0925b2c0f4529d9a6bfd06621505f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling swc_macros_common v0.3.3
[INFO] [stderr]    Compiling from_variant v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.45s
[INFO] running `Command { std: "docker" "inspect" "f94a277c8710f716e1b106ba4749196e65d0925b2c0f4529d9a6bfd06621505f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f94a277c8710f716e1b106ba4749196e65d0925b2c0f4529d9a6bfd06621505f", kill_on_drop: false }`
[INFO] [stdout] f94a277c8710f716e1b106ba4749196e65d0925b2c0f4529d9a6bfd06621505f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81edc733ea002d271515ede69bbb53516ca042b6266e982960c4d1b8d0569875
[INFO] running `Command { std: "docker" "start" "-a" "81edc733ea002d271515ede69bbb53516ca042b6266e982960c4d1b8d0569875", kill_on_drop: false }`
[INFO] [stderr]    Compiling from_variant v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "81edc733ea002d271515ede69bbb53516ca042b6266e982960c4d1b8d0569875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81edc733ea002d271515ede69bbb53516ca042b6266e982960c4d1b8d0569875", kill_on_drop: false }`
[INFO] [stdout] 81edc733ea002d271515ede69bbb53516ca042b6266e982960c4d1b8d0569875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a84498278657453aad4df0e3504d7ba85221b9fa8f3e85542e6c7453f53bef67
[INFO] running `Command { std: "docker" "start" "-a" "a84498278657453aad4df0e3504d7ba85221b9fa8f3e85542e6c7453f53bef67", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/from_variant-dfc0bf25ea6e1560)
[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 from_variant
[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" "a84498278657453aad4df0e3504d7ba85221b9fa8f3e85542e6c7453f53bef67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84498278657453aad4df0e3504d7ba85221b9fa8f3e85542e6c7453f53bef67", kill_on_drop: false }`
[INFO] [stdout] a84498278657453aad4df0e3504d7ba85221b9fa8f3e85542e6c7453f53bef67