[INFO] fetching crate fswallet 0.1.0-alpha.0...
[INFO] testing fswallet-0.1.0-alpha.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate fswallet 0.1.0-alpha.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate fswallet 0.1.0-alpha.0 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 fswallet 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate fswallet 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate fswallet 0.1.0-alpha.0 written to /workspace/builds/worker-0/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a774a056b722ff621f59be58cd025c885001f890e7675f43409ee514b6d882ac
[INFO] running `Command { std: "docker" "start" "-a" "a774a056b722ff621f59be58cd025c885001f890e7675f43409ee514b6d882ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a774a056b722ff621f59be58cd025c885001f890e7675f43409ee514b6d882ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a774a056b722ff621f59be58cd025c885001f890e7675f43409ee514b6d882ac", kill_on_drop: false }`
[INFO] [stdout] a774a056b722ff621f59be58cd025c885001f890e7675f43409ee514b6d882ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 3940d7291417ea036c1dc62ef101e5caf7219f6c5f487e1483e543786361fdf0
[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" "3940d7291417ea036c1dc62ef101e5caf7219f6c5f487e1483e543786361fdf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling base58 v0.1.0
[INFO] [stderr]    Compiling home v0.3.4
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling ripemd160 v0.8.0
[INFO] [stderr]    Compiling secp256k1 v0.12.2
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling hdwallet v0.2.2
[INFO] [stderr]    Compiling hdwallet-bitcoin v0.2.1
[INFO] [stderr]    Compiling fswallet v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::util::hex::ToHex`
[INFO] [stdout]  --> src/cli.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::util::hex::ToHex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App`, `Arg`, `SubCommand`
[INFO] [stdout]  --> src/cli.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{App, Arg, ArgMatches, SubCommand};
[INFO] [stdout]   |            ^^^  ^^^              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hdwallet_bitcoin::Network as BitcoinNetwork`
[INFO] [stdout]  --> src/cli.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use hdwallet_bitcoin::Network as BitcoinNetwork;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]  --> src/cli.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::error;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/cli.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `self`
[INFO] [stdout]   --> src/cli.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs::{self, File};
[INFO] [stdout]    |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]   --> src/cli.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::io::{Read, Write};
[INFO] [stdout]    |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Derivation`, `KeySeed`
[INFO] [stdout]  --> src/key_manage.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Derivation, ExtendedPrivKey, KeySeed,
[INFO] [stdout]   |     ^^^^^^^^^^                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Network`, `PrivKey as BitcoinPrivKey`
[INFO] [stdout]   --> src/key_manage.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use hdwallet_bitcoin::{Network, PrivKey as BitcoinPrivKey};
[INFO] [stdout]    |                        ^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key::KeyFile`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::key::KeyFile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key_manage::KeyManage`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::key_manage::KeyManage;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key_store::KeyStore`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::key_store::KeyStore;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::hex::ToHex`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::util::hex::ToHex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExtendedPrivKey`, `KeySeed`
[INFO] [stdout]   --> src/main.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | use hdwallet::{ExtendedPrivKey, KeySeed};
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hdwallet_bitcoin::Network as BitcoinNetwork`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use hdwallet_bitcoin::Network as BitcoinNetwork;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `self`
[INFO] [stdout]   --> src/main.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::fs::{self, File};
[INFO] [stdout]    |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]   --> src/main.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::io::{Read, Write};
[INFO] [stdout]    |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_matches`
[INFO] [stdout]   --> src/cli.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 54 |         ("list", Some(sub_matches)) => match key_store.read_key_names() {
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/util/serde.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn ser_hex<S>(data: &[u8], mut serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stdout]   |                                ----^^^^^^^^^^
[INFO] [stdout]   |                                |
[INFO] [stdout]   |                                help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cli.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 key_store.write_key(key, key_file);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.52s
[INFO] running `Command { std: "docker" "inspect" "3940d7291417ea036c1dc62ef101e5caf7219f6c5f487e1483e543786361fdf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3940d7291417ea036c1dc62ef101e5caf7219f6c5f487e1483e543786361fdf0", kill_on_drop: false }`
[INFO] [stdout] 3940d7291417ea036c1dc62ef101e5caf7219f6c5f487e1483e543786361fdf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] afac3ff12b1a4700af6fe4cc90325fa0e6c36d438f48f93d6ca93cf013bfeef1
[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" "afac3ff12b1a4700af6fe4cc90325fa0e6c36d438f48f93d6ca93cf013bfeef1", kill_on_drop: false }`
[INFO] [stderr]    Compiling fswallet v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::util::hex::ToHex`
[INFO] [stdout]  --> src/cli.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::util::hex::ToHex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App`, `Arg`, `SubCommand`
[INFO] [stdout]  --> src/cli.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{App, Arg, ArgMatches, SubCommand};
[INFO] [stdout]   |            ^^^  ^^^              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hdwallet_bitcoin::Network as BitcoinNetwork`
[INFO] [stdout]  --> src/cli.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use hdwallet_bitcoin::Network as BitcoinNetwork;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]  --> src/cli.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::error;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/cli.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `self`
[INFO] [stdout]   --> src/cli.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fs::{self, File};
[INFO] [stdout]    |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]   --> src/cli.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::io::{Read, Write};
[INFO] [stdout]    |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Derivation`, `KeySeed`
[INFO] [stdout]  --> src/key_manage.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Derivation, ExtendedPrivKey, KeySeed,
[INFO] [stdout]   |     ^^^^^^^^^^                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Network`, `PrivKey as BitcoinPrivKey`
[INFO] [stdout]   --> src/key_manage.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use hdwallet_bitcoin::{Network, PrivKey as BitcoinPrivKey};
[INFO] [stdout]    |                        ^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key::KeyFile`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::key::KeyFile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key_manage::KeyManage`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::key_manage::KeyManage;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key_store::KeyStore`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::key_store::KeyStore;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::hex::ToHex`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::util::hex::ToHex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExtendedPrivKey`, `KeySeed`
[INFO] [stdout]   --> src/main.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | use hdwallet::{ExtendedPrivKey, KeySeed};
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hdwallet_bitcoin::Network as BitcoinNetwork`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use hdwallet_bitcoin::Network as BitcoinNetwork;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File`, `self`
[INFO] [stdout]   --> src/main.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::fs::{self, File};
[INFO] [stdout]    |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]   --> src/main.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::io::{Read, Write};
[INFO] [stdout]    |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_matches`
[INFO] [stdout]   --> src/cli.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 54 |         ("list", Some(sub_matches)) => match key_store.read_key_names() {
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/util/serde.rs:4:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn ser_hex<S>(data: &[u8], mut serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stdout]   |                                ----^^^^^^^^^^
[INFO] [stdout]   |                                |
[INFO] [stdout]   |                                help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cli.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 key_store.write_key(key, key_file);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "afac3ff12b1a4700af6fe4cc90325fa0e6c36d438f48f93d6ca93cf013bfeef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afac3ff12b1a4700af6fe4cc90325fa0e6c36d438f48f93d6ca93cf013bfeef1", kill_on_drop: false }`
[INFO] [stdout] afac3ff12b1a4700af6fe4cc90325fa0e6c36d438f48f93d6ca93cf013bfeef1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb4c17cd3bc31f84698628bf36e4c7578675177733491c72a6a551f2a3f8a8a4
[INFO] running `Command { std: "docker" "start" "-a" "cb4c17cd3bc31f84698628bf36e4c7578675177733491c72a6a551f2a3f8a8a4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::util::hex::ToHex`
[INFO] [stderr]  --> src/cli.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::util::hex::ToHex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `App`, `Arg`, `SubCommand`
[INFO] [stderr]  --> src/cli.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | use clap::{App, Arg, ArgMatches, SubCommand};
[INFO] [stderr]   |            ^^^  ^^^              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hdwallet_bitcoin::Network as BitcoinNetwork`
[INFO] [stderr]  --> src/cli.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use hdwallet_bitcoin::Network as BitcoinNetwork;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::error`
[INFO] [stderr]  --> src/cli.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use log::error;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Serialize`
[INFO] [stderr]   --> src/cli.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use serde::Serialize;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File`, `self`
[INFO] [stderr]   --> src/cli.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::fs::{self, File};
[INFO] [stderr]    |               ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `Write`
[INFO] [stderr]   --> src/cli.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::io::{Read, Write};
[INFO] [stderr]    |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Derivation`, `KeySeed`
[INFO] [stderr]  --> src/key_manage.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Derivation, ExtendedPrivKey, KeySeed,
[INFO] [stderr]   |     ^^^^^^^^^^                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Network`, `PrivKey as BitcoinPrivKey`
[INFO] [stderr]   --> src/key_manage.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 | use hdwallet_bitcoin::{Network, PrivKey as BitcoinPrivKey};
[INFO] [stderr]    |                        ^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::key::KeyFile`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::key::KeyFile;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::key_manage::KeyManage`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::key_manage::KeyManage;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::key_store::KeyStore`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::key_store::KeyStore;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::hex::ToHex`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use crate::util::hex::ToHex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ExtendedPrivKey`, `KeySeed`
[INFO] [stderr]   --> src/main.rs:15:16
[INFO] [stderr]    |
[INFO] [stderr] 15 | use hdwallet::{ExtendedPrivKey, KeySeed};
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hdwallet_bitcoin::Network as BitcoinNetwork`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use hdwallet_bitcoin::Network as BitcoinNetwork;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Serialize`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use serde::Serialize;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File`, `self`
[INFO] [stderr]   --> src/main.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::fs::{self, File};
[INFO] [stderr]    |               ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `Write`
[INFO] [stderr]   --> src/main.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::io::{Read, Write};
[INFO] [stderr]    |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::path::Path;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub_matches`
[INFO] [stderr]   --> src/cli.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |         ("list", Some(sub_matches)) => match key_store.read_key_names() {
[INFO] [stderr]    |                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/util/serde.rs:4:32
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn ser_hex<S>(data: &[u8], mut serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stderr]   |                                ----^^^^^^^^^^
[INFO] [stderr]   |                                |
[INFO] [stderr]   |                                help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/cli.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 key_store.write_key(key, key_file);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fswallet-1e6b865fb98161e0
[INFO] [stdout] running 2 tests
[INFO] [stdout] test util::hex::tests::hex_and_dehex ... ok
[INFO] [stdout] test key_manage::tests::test_enc_dec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb4c17cd3bc31f84698628bf36e4c7578675177733491c72a6a551f2a3f8a8a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb4c17cd3bc31f84698628bf36e4c7578675177733491c72a6a551f2a3f8a8a4", kill_on_drop: false }`
[INFO] [stdout] cb4c17cd3bc31f84698628bf36e4c7578675177733491c72a6a551f2a3f8a8a4