[INFO] crate fswallet 0.1.0-alpha.0 is already in cache
[INFO] extracting crate fswallet 0.1.0-alpha.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/fswallet/0.1.0-alpha.0
[INFO] extracting crate fswallet 0.1.0-alpha.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/fswallet/0.1.0-alpha.0
[INFO] validating manifest of fswallet-0.1.0-alpha.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fswallet-0.1.0-alpha.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fswallet-0.1.0-alpha.0
[INFO] finished frobbing fswallet-0.1.0-alpha.0
[INFO] frobbed toml for fswallet-0.1.0-alpha.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/fswallet/0.1.0-alpha.0/Cargo.toml
[INFO] started frobbing fswallet-0.1.0-alpha.0
[INFO] finished frobbing fswallet-0.1.0-alpha.0
[INFO] frobbed toml for fswallet-0.1.0-alpha.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/fswallet/0.1.0-alpha.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking fswallet-0.1.0-alpha.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/fswallet/0.1.0-alpha.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3c0838828c74047f0195d4cc42814814c2e211388797146edf0ddddd09944730
[INFO] running `"docker" "start" "-a" "3c0838828c74047f0195d4cc42814814c2e211388797146edf0ddddd09944730"`
[INFO] [stderr]     Checking home v0.3.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]     Checking hdwallet v0.2.2
[INFO] [stderr]     Checking hdwallet-bitcoin v0.2.1
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking fswallet v0.1.0-alpha.0 (/opt/crater/workdir)
[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 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 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: consider prefixing with an underscore: `_sub_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[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: consider prefixing 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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `"docker" "inspect" "3c0838828c74047f0195d4cc42814814c2e211388797146edf0ddddd09944730"`
[INFO] running `"docker" "rm" "-f" "3c0838828c74047f0195d4cc42814814c2e211388797146edf0ddddd09944730"`
[INFO] [stdout] 3c0838828c74047f0195d4cc42814814c2e211388797146edf0ddddd09944730