[INFO] fetching crate env-extract 0.1.22...
[INFO] testing env-extract-0.1.22 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate env-extract 0.1.22 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate env-extract 0.1.22
[INFO] finished tweaking crates.io crate env-extract 0.1.22
[INFO] tweaked toml for crates.io crate env-extract 0.1.22 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate env-extract 0.1.22 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.104)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24b71ba5ef9c147bbe82fd521d87463b92eb989d937ba461a32a6c62bcff0afc
[INFO] running `Command { std: "docker" "start" "-a" "24b71ba5ef9c147bbe82fd521d87463b92eb989d937ba461a32a6c62bcff0afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24b71ba5ef9c147bbe82fd521d87463b92eb989d937ba461a32a6c62bcff0afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24b71ba5ef9c147bbe82fd521d87463b92eb989d937ba461a32a6c62bcff0afc", kill_on_drop: false }`
[INFO] [stdout] 24b71ba5ef9c147bbe82fd521d87463b92eb989d937ba461a32a6c62bcff0afc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 29cdf30bf149338fc190a2e4c522398d072d8f1f922e63ab285c28ba2af72212
[INFO] running `Command { std: "docker" "start" "-a" "29cdf30bf149338fc190a2e4c522398d072d8f1f922e63ab285c28ba2af72212", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling env-extract v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:453:56
[INFO] [stdout]     |
[INFO] [stdout] 453 |                         if let Some(_attr) = attributes.clone().iter().find(|attr| {
[INFO] [stdout]     |                                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[Attribute]` does not implement `Clone`, so calling `clone` on `&[Attribute]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `Command { std: "docker" "inspect" "29cdf30bf149338fc190a2e4c522398d072d8f1f922e63ab285c28ba2af72212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29cdf30bf149338fc190a2e4c522398d072d8f1f922e63ab285c28ba2af72212", kill_on_drop: false }`
[INFO] [stdout] 29cdf30bf149338fc190a2e4c522398d072d8f1f922e63ab285c28ba2af72212
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f942bf7576a2dfcd5115bc40fb0a8912366071a4e6757c070554548ea42772f8
[INFO] running `Command { std: "docker" "start" "-a" "f942bf7576a2dfcd5115bc40fb0a8912366071a4e6757c070554548ea42772f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling env-extract v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:453:56
[INFO] [stdout]     |
[INFO] [stdout] 453 |                         if let Some(_attr) = attributes.clone().iter().find(|attr| {
[INFO] [stdout]     |                                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[Attribute]` does not implement `Clone`, so calling `clone` on `&[Attribute]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:453:56
[INFO] [stdout]     |
[INFO] [stdout] 453 |                         if let Some(_attr) = attributes.clone().iter().find(|attr| {
[INFO] [stdout]     |                                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[Attribute]` does not implement `Clone`, so calling `clone` on `&[Attribute]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.19s
[INFO] running `Command { std: "docker" "inspect" "f942bf7576a2dfcd5115bc40fb0a8912366071a4e6757c070554548ea42772f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f942bf7576a2dfcd5115bc40fb0a8912366071a4e6757c070554548ea42772f8", kill_on_drop: false }`
[INFO] [stdout] f942bf7576a2dfcd5115bc40fb0a8912366071a4e6757c070554548ea42772f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] ce3fa6faf27636e8f66a7be7b2de46d179d22ad952235d6b051d9264591a294f
[INFO] running `Command { std: "docker" "start" "-a" "ce3fa6faf27636e8f66a7be7b2de46d179d22ad952235d6b051d9264591a294f", kill_on_drop: false }`
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/lib.rs:453:56
[INFO] [stderr]     |
[INFO] [stderr] 453 |                         if let Some(_attr) = attributes.clone().iter().find(|attr| {
[INFO] [stderr]     |                                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `[Attribute]` does not implement `Clone`, so calling `clone` on `&[Attribute]` copies the reference, which does not do anything and can be removed
[INFO] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `env-extract` (lib) generated 1 warning (run `cargo fix --lib -p env-extract` to apply 1 suggestion)
[INFO] [stderr] warning: `env-extract` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/env_extract-3c1c3ae3f48c685f)
[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] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/integration_test-3036cc30c609b68e)
[INFO] [stdout] test tests::test_case_conversion_uppercase ... ok
[INFO] [stdout] test tests::test_default_value_success ... ok
[INFO] [stdout] test tests::test_case_conversion_lowercase ... ok
[INFO] [stdout] test tests::test_exact_match ... ok
[INFO] [stdout] test tests::test_extract_enum_from_env_failure_with_case_uppercase ... ok
[INFO] [stdout] test tests::test_case_conversion_any ... ok
[INFO] [stdout] test tests::test_extract_enum_from_env_failure ... ok
[INFO] [stdout] test tests::test_extract_enum_from_env_success_with_case_uppercase ... ok
[INFO] [stdout] test tests::test_extract_enum_from_env_failure_with_var_name ... ok
[INFO] [stdout] test tests::test_invalid_value ... ok
[INFO] [stdout] test tests::test_extract_enum_from_env_success_with_panic_on_invalid ... ok
[INFO] [stdout] test tests::test_extract_enum_from_env_success_with_var_name ... ok
[INFO] [stdout] test tests::test_populate_struct_from_env_success ... ok
[INFO] [stdout] test tests::test_populate_struct_from_env_with_default_success ... ok
[INFO] [stdout] test tests::test_extract_enum_from_env_failure_with_panic_on_invalid - should panic ... ok
[INFO] [stdout] test tests::test_populate_struct_from_env_failure - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests env_extract
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - enum_from_env (line 165) ... ok
[INFO] [stdout] test src/lib.rs - env_for_struct (line 492) ... ok
[INFO] [stdout] test src/lib.rs - (line 84) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.85s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce3fa6faf27636e8f66a7be7b2de46d179d22ad952235d6b051d9264591a294f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce3fa6faf27636e8f66a7be7b2de46d179d22ad952235d6b051d9264591a294f", kill_on_drop: false }`
[INFO] [stdout] ce3fa6faf27636e8f66a7be7b2de46d179d22ad952235d6b051d9264591a294f