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[INFO] validating manifest of git repo https://github.com/davidMcneil/unified-dynamic-rust-app-config on toolchain 5518eaa946291f00471af8b254b2a1715f234882
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[INFO] [stderr]     Updating git repository `https://github.com/habitat-sh/structopt.git`
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[INFO] [stderr]   Downloaded colosseum v0.2.2
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking colosseum v0.2.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0 (https://github.com/habitat-sh/clap.git?branch=v2-master#88208fba)
[INFO] [stderr]     Checking rand_core v0.5.1
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[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking proc_macro_roids v0.7.0
[INFO] [stderr]     Checking configopt-derive v0.1.0 (/opt/rustwide/workdir/configopt-derive)
[INFO] [stdout] warning: unused import: `try_from_error::generate as try_from_error`
[INFO] [stdout]  --> configopt-derive/src/configopt_type/generate.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use try_from_error::generate as try_from_error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `try_from_error::generate as try_from_error`
[INFO] [stdout]  --> configopt-derive/src/configopt_type/generate.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use try_from_error::generate as try_from_error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stdout] warning: unused import: `try_from_error::generate as try_from_error`
[INFO] [stdout]  --> configopt-derive/src/configopt_type/generate.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use try_from_error::generate as try_from_error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling structopt-derive v0.4.6 (https://github.com/habitat-sh/structopt.git#48e591de)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking structopt v0.3.13 (https://github.com/habitat-sh/structopt.git#48e591de)
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.46
[INFO] [stderr]     Checking configopt v0.1.0 (/opt/rustwide/workdir/configopt)
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> configopt/tests/custom_parser_and_to_os_string.rs:20:3
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout] 19 | #[configopt(derive(Debug, PartialEq), attrs(serde))]
[INFO] [stdout] 20 | #[serde(deny_unknown_fields)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]    = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> configopt/tests/duration.rs:50:3
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout] 49 | #[configopt(derive(Debug, PartialEq), attrs(serde))]
[INFO] [stdout] 50 | #[serde(deny_unknown_fields)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]    = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]  --> configopt/examples/test.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]   |          --------- the attribute is introduced here
[INFO] [stdout] 7 | #[configopt(derive(Debug, PartialEq), attrs(serde))]
[INFO] [stdout] 8 | #[serde(deny_unknown_fields)]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]   = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `custom` is never read
[INFO] [stdout]  --> configopt/tests/empty_string.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct MyStruct {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 5 |     #[structopt(long, empty_values = false)]
[INFO] [stdout] 6 |     custom: Option<String>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MyStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> configopt/tests/test_bool.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 8  |     #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |              --------- the attribute is introduced here
[INFO] [stdout] 9  |     #[configopt(derive(Debug, PartialEq), attrs(serde))]
[INFO] [stdout] 10 |     #[serde(deny_unknown_fields)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]    = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> configopt/tests/test_bool.rs:61:7
[INFO] [stdout]    |
[INFO] [stdout] 59 |     #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |              --------- the attribute is introduced here
[INFO] [stdout] 60 |     #[configopt(derive(Debug, PartialEq), attrs(serde))]
[INFO] [stdout] 61 |     #[serde(deny_unknown_fields)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> configopt/tests/no_wrap.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(ConfigOpt, StructOpt, Debug)]
[INFO] [stdout]    |          ^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `ConfigOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]  --> configopt/tests/test_all_types.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]   |          --------- the attribute is introduced here
[INFO] [stdout] 8 | #[structopt(rename_all = "camelcase")]
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout]   = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> configopt/tests/test_all_types.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 10 | #[serde(deny_unknown_fields)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> configopt/tests/test_all_types.rs:55:3
[INFO] [stdout]    |
[INFO] [stdout] 53 | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout] 54 | #[configopt(derive(Debug, PartialEq), attrs(serde))]
[INFO] [stdout] 55 | #[serde(deny_unknown_fields)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> configopt/tests/test_all_types.rs:68:3
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout] 67 | #[configopt(derive(Debug, PartialEq), attrs(serde))]
[INFO] [stdout] 68 | #[serde(deny_unknown_fields)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> configopt/tests/test_all_types.rs:53:10
[INFO] [stdout]    |
[INFO] [stdout] 53 | #[derive(ConfigOpt, StructOpt, Debug, Deserialize, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `ConfigOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.50s
[INFO] running `Command { std: "docker" "inspect" "c2b50268326c8902fbd64a69ed40aefcc15ef13b96b047fd0b7ddfb9ee7b0a35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b50268326c8902fbd64a69ed40aefcc15ef13b96b047fd0b7ddfb9ee7b0a35", kill_on_drop: false }`
[INFO] [stdout] c2b50268326c8902fbd64a69ed40aefcc15ef13b96b047fd0b7ddfb9ee7b0a35
