[INFO] fetching crate fractal-utils 0.3.4...
[INFO] testing fractal-utils-0.3.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate fractal-utils 0.3.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fractal-utils 0.3.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fractal-utils 0.3.4
[INFO] finished tweaking crates.io crate fractal-utils 0.3.4
[INFO] tweaked toml for crates.io crate fractal-utils 0.3.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-base58 v0.0.4
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd52454cf1942b19c6e97c4e22cdf29cd604f26c6a5dd23a5b240c76977da6cc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fd52454cf1942b19c6e97c4e22cdf29cd604f26c6a5dd23a5b240c76977da6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd52454cf1942b19c6e97c4e22cdf29cd604f26c6a5dd23a5b240c76977da6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd52454cf1942b19c6e97c4e22cdf29cd604f26c6a5dd23a5b240c76977da6cc", kill_on_drop: false }`
[INFO] [stdout] fd52454cf1942b19c6e97c4e22cdf29cd604f26c6a5dd23a5b240c76977da6cc
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 357d0934709dcafb8786ddd669a88aa129bec88a063aab681bbc696bf235173d
[INFO] running `Command { std: "docker" "start" "-a" "357d0934709dcafb8786ddd669a88aa129bec88a063aab681bbc696bf235173d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling rust-base58 v0.0.4
[INFO] [stderr]    Compiling fractal-utils v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: `plugins have been deprecated and retired`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_fns` has been removed: `no longer a warning, `#[no_mangle]` functions always exported`
[INFO] [stdout]   --> src/lib.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stdout]   --> src/lib.rs:15:47
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/amount.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:13:25
[INFO] [stdout]     |
[INFO] [stdout] 13  | #![forbid(missing_docs, warnings)]
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/wallet_address.rs:211:32
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.60s
[INFO] running `Command { std: "docker" "inspect" "357d0934709dcafb8786ddd669a88aa129bec88a063aab681bbc696bf235173d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "357d0934709dcafb8786ddd669a88aa129bec88a063aab681bbc696bf235173d", kill_on_drop: false }`
[INFO] [stdout] 357d0934709dcafb8786ddd669a88aa129bec88a063aab681bbc696bf235173d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39883779ff2449476f258960d8073c78f7ed412d8ea9d9b1be0fb1e111a0663b
[INFO] running `Command { std: "docker" "start" "-a" "39883779ff2449476f258960d8073c78f7ed412d8ea9d9b1be0fb1e111a0663b", kill_on_drop: false }`
[INFO] [stderr]    Compiling fractal-utils v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: `plugins have been deprecated and retired`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_fns` has been removed: `no longer a warning, `#[no_mangle]` functions always exported`
[INFO] [stdout]   --> src/lib.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stdout]   --> src/lib.rs:15:47
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/amount.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:13:25
[INFO] [stdout]     |
[INFO] [stdout] 13  | #![forbid(missing_docs, warnings)]
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/wallet_address.rs:211:32
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: `plugins have been deprecated and retired`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_fns` has been removed: `no longer a warning, `#[no_mangle]` functions always exported`
[INFO] [stdout]   --> src/lib.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stdout]   --> src/lib.rs:15:47
[INFO] [stdout]    |
[INFO] [stdout] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: `plugins have been deprecated and retired`
[INFO] [stdout]  --> tests/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> tests/lib.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![forbid(warnings, missing_docs)]
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_fns` has been removed: `no longer a warning, `#[no_mangle]` functions always exported`
[INFO] [stdout]  --> tests/lib.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stdout]  --> tests/lib.rs:3:47
[INFO] [stdout]   |
[INFO] [stdout] 3 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stdout]   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/amount.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:13:25
[INFO] [stdout]     |
[INFO] [stdout] 13  | #![forbid(missing_docs, warnings)]
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/wallet_address.rs:211:32
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "39883779ff2449476f258960d8073c78f7ed412d8ea9d9b1be0fb1e111a0663b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39883779ff2449476f258960d8073c78f7ed412d8ea9d9b1be0fb1e111a0663b", kill_on_drop: false }`
[INFO] [stdout] 39883779ff2449476f258960d8073c78f7ed412d8ea9d9b1be0fb1e111a0663b
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bfa6acf9bcc8d6eca1aded28a6305d1f4c8b7611aa71a1125dbc06cb6606ba7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bfa6acf9bcc8d6eca1aded28a6305d1f4c8b7611aa71a1125dbc06cb6606ba7d", kill_on_drop: false }`
[INFO] [stderr] warning: lint `plugin_as_library` has been removed: `plugins have been deprecated and retired`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:13:25
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: lint `private_no_mangle_fns` has been removed: `no longer a warning, `#[no_mangle]` functions always exported`
[INFO] [stderr]   --> src/lib.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stderr]   --> src/lib.rs:15:47
[INFO] [stderr]    |
[INFO] [stderr] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/amount.rs:236:32
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:13:25
[INFO] [stderr]     |
[INFO] [stderr] 13  | #![forbid(missing_docs, warnings)]
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/wallet_address.rs:211:32
[INFO] [stderr]     |
[INFO] [stderr] 211 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: lint `plugin_as_library` has been removed: `plugins have been deprecated and retired`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:13:25
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: lint `private_no_mangle_fns` has been removed: `no longer a warning, `#[no_mangle]` functions always exported`
[INFO] [stderr]   --> src/lib.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stderr]   --> src/lib.rs:15:47
[INFO] [stderr]    |
[INFO] [stderr] 15 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/amount.rs:236:32
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:13:25
[INFO] [stderr]     |
[INFO] [stderr] 13  | #![forbid(missing_docs, warnings)]
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/wallet_address.rs:211:32
[INFO] [stderr]     |
[INFO] [stderr] 211 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: lint `plugin_as_library` has been removed: `plugins have been deprecated and retired`
[INFO] [stderr]  --> tests/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> tests/lib.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![forbid(warnings, missing_docs)]
[INFO] [stderr]   |           ^^^^^^^^
[INFO] [stderr]   = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: lint `private_no_mangle_fns` has been removed: `no longer a warning, `#[no_mangle]` functions always exported`
[INFO] [stderr]  --> tests/lib.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stderr]  --> tests/lib.rs:3:47
[INFO] [stderr]   |
[INFO] [stderr] 3 |     plugin_as_library, private_no_mangle_fns, private_no_mangle_statics, stable_features,
[INFO] [stderr]   |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fractal_utils-297964b68790c5e3
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-7ebeb31f3668df77
[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 6 tests
[INFO] [stdout] test it_amount_bad_format ... ok
[INFO] [stdout] test it_amount_ops ... ok
[INFO] [stdout] test it_amount_other_format ... ok
[INFO] [stdout] test it_amount_parse ... ok
[INFO] [stdout] test it_fromstr_walletaddress ... ok
[INFO] [stdout] test it_invalid_wallet_address ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fractal-utils
[INFO] [stderr] error[E0453]: deny(improper_ctypes) incompatible with previous forbid
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         -------- `forbid` level set here
[INFO] [stderr] 14 | #![deny(deprecated, improper_ctypes, non_shorthand_field_patterns, overflowing_literals,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stderr] 
[INFO] [stderr] error[E0453]: deny(unused) incompatible with previous forbid
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:16:45
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         -------- `forbid` level set here
[INFO] [stderr] ...
[INFO] [stderr] 16 |     unconditional_recursion, unknown_lints, unused, unused_allocation, unused_attributes,
[INFO] [stderr]    |                                             ^^^^^^ overruled by previous forbid
[INFO] [stderr] 
[INFO] [stderr] error[E0453]: deny(unused_allocation) incompatible with previous forbid
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:16:53
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         -------- `forbid` level set here
[INFO] [stderr] ...
[INFO] [stderr] 16 |     unconditional_recursion, unknown_lints, unused, unused_allocation, unused_attributes,
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stderr] 
[INFO] [stderr] error[E0453]: deny(unused_attributes) incompatible with previous forbid
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:16:72
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         -------- `forbid` level set here
[INFO] [stderr] ...
[INFO] [stderr] 16 |     unconditional_recursion, unknown_lints, unused, unused_allocation, unused_attributes,
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stderr] 
[INFO] [stderr] error[E0453]: deny(unused_comparisons) incompatible with previous forbid
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         -------- `forbid` level set here
[INFO] [stderr] ...
[INFO] [stderr] 17 |     unused_comparisons, unused_features, unused_parens, while_true)]
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stderr] 
[INFO] [stderr] error[E0453]: deny(unused_parens) incompatible with previous forbid
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:17:42
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         -------- `forbid` level set here
[INFO] [stderr] ...
[INFO] [stderr] 17 |     unused_comparisons, unused_features, unused_parens, while_true)]
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stderr] 
[INFO] [stderr] error[E0453]: warn(unused) incompatible with previous forbid
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:18:47
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![forbid(missing_docs, warnings)]
[INFO] [stderr]    |                         -------- `forbid` level set here
[INFO] [stderr] ...
[INFO] [stderr] 18 | #![warn(trivial_casts, trivial_numeric_casts, unused, unused_extern_crates, unused_import_braces,
[INFO] [stderr]    |                                               ^^^^^^ overruled by previous forbid
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0453`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "bfa6acf9bcc8d6eca1aded28a6305d1f4c8b7611aa71a1125dbc06cb6606ba7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa6acf9bcc8d6eca1aded28a6305d1f4c8b7611aa71a1125dbc06cb6606ba7d", kill_on_drop: false }`
[INFO] [stdout] bfa6acf9bcc8d6eca1aded28a6305d1f4c8b7611aa71a1125dbc06cb6606ba7d