[INFO] fetching crate envopt 0.0.0...
[INFO] testing envopt-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate envopt 0.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate envopt 0.0.0 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 envopt 0.0.0
[INFO] finished tweaking crates.io crate envopt 0.0.0
[INFO] tweaked toml for crates.io crate envopt 0.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate envopt 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded envopt-derive v0.0.0
[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" "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] 2f79dc3b749dcdede2c16efb5bf199ddf51c5d739e16045ab40b2cf250a2302d
[INFO] running `Command { std: "docker" "start" "-a" "2f79dc3b749dcdede2c16efb5bf199ddf51c5d739e16045ab40b2cf250a2302d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f79dc3b749dcdede2c16efb5bf199ddf51c5d739e16045ab40b2cf250a2302d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f79dc3b749dcdede2c16efb5bf199ddf51c5d739e16045ab40b2cf250a2302d", kill_on_drop: false }`
[INFO] [stdout] 2f79dc3b749dcdede2c16efb5bf199ddf51c5d739e16045ab40b2cf250a2302d
[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" "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] b91e0696ed5df3c04bedfb64fab3b779742e6bfda021f267d33be70db6252181
[INFO] running `Command { std: "docker" "start" "-a" "b91e0696ed5df3c04bedfb64fab3b779742e6bfda021f267d33be70db6252181", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling envopt-derive v0.0.0
[INFO] [stderr]    Compiling envopt v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.93s
[INFO] running `Command { std: "docker" "inspect" "b91e0696ed5df3c04bedfb64fab3b779742e6bfda021f267d33be70db6252181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91e0696ed5df3c04bedfb64fab3b779742e6bfda021f267d33be70db6252181", kill_on_drop: false }`
[INFO] [stdout] b91e0696ed5df3c04bedfb64fab3b779742e6bfda021f267d33be70db6252181
[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" "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] e896df4fed4d0934702fddecd79ccfc0b64df5ba9b7e50bfe39e2f6813a9295e
[INFO] running `Command { std: "docker" "start" "-a" "e896df4fed4d0934702fddecd79ccfc0b64df5ba9b7e50bfe39e2f6813a9295e", kill_on_drop: false }`
[INFO] [stderr]    Compiling envopt v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:132] get_attr("name".into(), variant) = Some(
[INFO] [stderr]     "FOO",
[INFO] [stderr] )
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:136] get_attr("default".into(), variant) = None
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:132] get_attr("name".into(), variant) = Some(
[INFO] [stderr]     "BAR",
[INFO] [stderr] )
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:136] get_attr("default".into(), variant) = Some(
[INFO] [stderr]     "default-bar",
[INFO] [stderr] )
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "e896df4fed4d0934702fddecd79ccfc0b64df5ba9b7e50bfe39e2f6813a9295e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e896df4fed4d0934702fddecd79ccfc0b64df5ba9b7e50bfe39e2f6813a9295e", kill_on_drop: false }`
[INFO] [stdout] e896df4fed4d0934702fddecd79ccfc0b64df5ba9b7e50bfe39e2f6813a9295e
[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" "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] 8362a4462a9a3c2a24e39fad9bf4e6bab1934b8098660fa20896f395f244d69c
[INFO] running `Command { std: "docker" "start" "-a" "8362a4462a9a3c2a24e39fad9bf4e6bab1934b8098660fa20896f395f244d69c", kill_on_drop: false }`
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:132] get_attr("name".into(), variant) = Some(
[INFO] [stderr]     "FOO",
[INFO] [stderr] )
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:136] get_attr("default".into(), variant) = None
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:132] get_attr("name".into(), variant) = Some(
[INFO] [stderr]     "BAR",
[INFO] [stderr] )
[INFO] [stderr] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:136] get_attr("default".into(), variant) = Some(
[INFO] [stderr]     "default-bar",
[INFO] [stderr] )
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/envopt-53b9ff84ea0d99a4)
[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 envopt
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 4) stdout ----
[INFO] [stdout] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:132] get_attr("name".into(), variant) = Some(
[INFO] [stdout]     "FOO",
[INFO] [stdout] )
[INFO] [stdout] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:136] get_attr("default".into(), variant) = None
[INFO] [stdout] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:132] get_attr("name".into(), variant) = Some(
[INFO] [stdout]     "BAR",
[INFO] [stdout] )
[INFO] [stdout] [/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/envopt-derive-0.0.0/src/lib.rs:136] get_attr("default".into(), variant) = Some(
[INFO] [stdout]     "default-bar",
[INFO] [stdout] )
[INFO] [stdout] Test executable failed (exit code 64).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Environment variable "FOO" not set
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 4)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "8362a4462a9a3c2a24e39fad9bf4e6bab1934b8098660fa20896f395f244d69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8362a4462a9a3c2a24e39fad9bf4e6bab1934b8098660fa20896f395f244d69c", kill_on_drop: false }`
[INFO] [stdout] 8362a4462a9a3c2a24e39fad9bf4e6bab1934b8098660fa20896f395f244d69c