[INFO] fetching crate bitcoin-private 0.1.0...
[INFO] testing bitcoin-private-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate bitcoin-private 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate bitcoin-private 0.1.0
[INFO] finished tweaking crates.io crate bitcoin-private 0.1.0
[INFO] tweaked toml for crates.io crate bitcoin-private 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bitcoin-private 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a2db263ab15914f7c3dd13f4129aff28ac894093254b0ec5f8a6a17b2f3a580
[INFO] running `Command { std: "docker" "start" "-a" "4a2db263ab15914f7c3dd13f4129aff28ac894093254b0ec5f8a6a17b2f3a580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a2db263ab15914f7c3dd13f4129aff28ac894093254b0ec5f8a6a17b2f3a580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2db263ab15914f7c3dd13f4129aff28ac894093254b0ec5f8a6a17b2f3a580", kill_on_drop: false }`
[INFO] [stdout] 4a2db263ab15914f7c3dd13f4129aff28ac894093254b0ec5f8a6a17b2f3a580
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 306f755342a6098ab92364af1b6ebd3f3b7e31d1e0ea7b1463af76b417817957
[INFO] running `Command { std: "docker" "start" "-a" "306f755342a6098ab92364af1b6ebd3f3b7e31d1e0ea7b1463af76b417817957", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitcoin-private v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]   --> src/hex/buf_encoder.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]   --> src/hex/buf_encoder.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:196:16
[INFO] [stdout]     |
[INFO] [stdout] 196 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:208:16
[INFO] [stdout]     |
[INFO] [stdout] 208 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:218:16
[INFO] [stdout]     |
[INFO] [stdout] 218 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "306f755342a6098ab92364af1b6ebd3f3b7e31d1e0ea7b1463af76b417817957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "306f755342a6098ab92364af1b6ebd3f3b7e31d1e0ea7b1463af76b417817957", kill_on_drop: false }`
[INFO] [stdout] 306f755342a6098ab92364af1b6ebd3f3b7e31d1e0ea7b1463af76b417817957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88f421905c4c8fa3515463006c4df94088f2d1bd02b63f71f42c1a20624fa354
[INFO] running `Command { std: "docker" "start" "-a" "88f421905c4c8fa3515463006c4df94088f2d1bd02b63f71f42c1a20624fa354", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitcoin-private v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]   --> src/hex/buf_encoder.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]   --> src/hex/buf_encoder.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:196:16
[INFO] [stdout]     |
[INFO] [stdout] 196 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:208:16
[INFO] [stdout]     |
[INFO] [stdout] 208 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:218:16
[INFO] [stdout]     |
[INFO] [stdout] 218 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]   --> src/hex/buf_encoder.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]   --> src/hex/buf_encoder.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:196:16
[INFO] [stdout]     |
[INFO] [stdout] 196 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:208:16
[INFO] [stdout]     |
[INFO] [stdout] 208 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:218:16
[INFO] [stdout]     |
[INFO] [stdout] 218 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stdout]    --> src/hex/buf_encoder.rs:239:16
[INFO] [stdout]     |
[INFO] [stdout] 239 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "88f421905c4c8fa3515463006c4df94088f2d1bd02b63f71f42c1a20624fa354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f421905c4c8fa3515463006c4df94088f2d1bd02b63f71f42c1a20624fa354", kill_on_drop: false }`
[INFO] [stdout] 88f421905c4c8fa3515463006c4df94088f2d1bd02b63f71f42c1a20624fa354
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 22ec02af8b006c70e5b791f8348bb65f398bdb6071e1a78c660b50f87cb2d002
[INFO] running `Command { std: "docker" "start" "-a" "22ec02af8b006c70e5b791f8348bb65f398bdb6071e1a78c660b50f87cb2d002", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stderr]   --> src/hex/buf_encoder.rs:71:20
[INFO] [stderr]    |
[INFO] [stderr] 71 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stderr]    |                    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stderr]   --> src/hex/buf_encoder.rs:79:20
[INFO] [stderr]    |
[INFO] [stderr] 79 |         #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stderr]    |                    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stderr]    --> src/hex/buf_encoder.rs:196:16
[INFO] [stderr]     |
[INFO] [stderr] 196 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stderr]    --> src/hex/buf_encoder.rs:208:16
[INFO] [stderr]     |
[INFO] [stderr] 208 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stderr]    --> src/hex/buf_encoder.rs:218:16
[INFO] [stderr]     |
[INFO] [stderr] 218 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `rust_v_1_46`
[INFO] [stderr]    --> src/hex/buf_encoder.rs:239:16
[INFO] [stderr]     |
[INFO] [stderr] 239 |     #[cfg_attr(rust_v_1_46, track_caller)]
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(rust_v_1_46)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_v_1_46)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: `bitcoin-private` (lib) generated 6 warnings
[INFO] [stderr] warning: `bitcoin-private` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bitcoin_private-6cb989008bb529dd)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test hex::buf_encoder::tests::empty ... ok
[INFO] [stdout] test hex::buf_encoder::tests::put_bytes_min ... ok
[INFO] [stdout] test hex::buf_encoder::tests::single_byte_exact_buf ... ok
[INFO] [stdout] test hex::buf_encoder::tests::two_bytes ... ok
[INFO] [stdout] test hex::buf_encoder::tests::same_as_fmt ... ok
[INFO] [stdout] test hex::buf_encoder::tests::single_byte_oversized_buf ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bitcoin_private
[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" "22ec02af8b006c70e5b791f8348bb65f398bdb6071e1a78c660b50f87cb2d002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ec02af8b006c70e5b791f8348bb65f398bdb6071e1a78c660b50f87cb2d002", kill_on_drop: false }`
[INFO] [stdout] 22ec02af8b006c70e5b791f8348bb65f398bdb6071e1a78c660b50f87cb2d002
