[INFO] updating cached repository Kixunil/btc_parse_tutor-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Kixunil/btc_parse_tutor-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Kixunil/btc_parse_tutor-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/Kixunil/btc_parse_tutor-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Kixunil/btc_parse_tutor-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Kixunil/btc_parse_tutor-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Kixunil/btc_parse_tutor-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Kixunil/btc_parse_tutor-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2d1ce4e391999dcf243abcdedc7ebd320a443eb
[INFO] sha for GitHub repo Kixunil/btc_parse_tutor-rust: f2d1ce4e391999dcf243abcdedc7ebd320a443eb
[INFO] validating manifest of Kixunil/btc_parse_tutor-rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Kixunil/btc_parse_tutor-rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Kixunil/btc_parse_tutor-rust
[INFO] finished frobbing Kixunil/btc_parse_tutor-rust
[INFO] frobbed toml for Kixunil/btc_parse_tutor-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/Kixunil/btc_parse_tutor-rust/Cargo.toml
[INFO] started frobbing Kixunil/btc_parse_tutor-rust
[INFO] finished frobbing Kixunil/btc_parse_tutor-rust
[INFO] frobbed toml for Kixunil/btc_parse_tutor-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Kixunil/btc_parse_tutor-rust/Cargo.toml
[INFO] crate Kixunil/btc_parse_tutor-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Kixunil/btc_parse_tutor-rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Kixunil/btc_parse_tutor-rust:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] fd43e9545b43bcd2e3084673ff0d54adb2ad0b585d6fe365f58b78e118ce0f0e
[INFO] running `"docker" "start" "-a" "fd43e9545b43bcd2e3084673ff0d54adb2ad0b585d6fe365f58b78e118ce0f0e"`
[INFO] [stderr]    Compiling btc_parse_tutor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `deserialize_varint`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn deserialize_varint<R: Read>(reader: &mut R) -> io::Result<u64> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Script`
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct Script(Vec<u8>);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Hash256`
[INFO] [stderr]   --> src/main.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct Hash256([u8; 32]);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Outpoint`
[INFO] [stderr]   --> src/main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | struct Outpoint {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TxInput`
[INFO] [stderr]   --> src/main.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | struct TxInput {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TxOutput`
[INFO] [stderr]   --> src/main.rs:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | struct TxOutput {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]    --> src/main.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Transaction`
[INFO] [stderr]    --> src/main.rs:114:1
[INFO] [stderr]     |
[INFO] [stderr] 114 | struct Transaction {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]    --> src/main.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "fd43e9545b43bcd2e3084673ff0d54adb2ad0b585d6fe365f58b78e118ce0f0e"`
[INFO] running `"docker" "rm" "-f" "fd43e9545b43bcd2e3084673ff0d54adb2ad0b585d6fe365f58b78e118ce0f0e"`
[INFO] [stdout] fd43e9545b43bcd2e3084673ff0d54adb2ad0b585d6fe365f58b78e118ce0f0e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Kixunil/btc_parse_tutor-rust:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] bda2e6a7b26975b01d2945848dc370b903246229e4d9cbce2ff99b1513373cf4
[INFO] running `"docker" "start" "-a" "bda2e6a7b26975b01d2945848dc370b903246229e4d9cbce2ff99b1513373cf4"`
[INFO] [stderr]    Compiling btc_parse_tutor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `deserialize_varint`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn deserialize_varint<R: Read>(reader: &mut R) -> io::Result<u64> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Script`
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct Script(Vec<u8>);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Hash256`
[INFO] [stderr]   --> src/main.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct Hash256([u8; 32]);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Outpoint`
[INFO] [stderr]   --> src/main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | struct Outpoint {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TxInput`
[INFO] [stderr]   --> src/main.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | struct TxInput {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]   --> src/main.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TxOutput`
[INFO] [stderr]   --> src/main.rs:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | struct TxOutput {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]    --> src/main.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Transaction`
[INFO] [stderr]    --> src/main.rs:114:1
[INFO] [stderr]     |
[INFO] [stderr] 114 | struct Transaction {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deserialize`
[INFO] [stderr]    --> src/main.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn deserialize<R: Read>(reader: &mut R) -> io::Result<Self> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "bda2e6a7b26975b01d2945848dc370b903246229e4d9cbce2ff99b1513373cf4"`
[INFO] running `"docker" "rm" "-f" "bda2e6a7b26975b01d2945848dc370b903246229e4d9cbce2ff99b1513373cf4"`
[INFO] [stdout] bda2e6a7b26975b01d2945848dc370b903246229e4d9cbce2ff99b1513373cf4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Kixunil/btc_parse_tutor-rust:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ceaf58f0a52e9ccc71ac0312fea109aa3e2bf4268084398c1d145e87b3ba46a2
[INFO] running `"docker" "start" "-a" "ceaf58f0a52e9ccc71ac0312fea109aa3e2bf4268084398c1d145e87b3ba46a2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/btc_parse_tutor-79ffd243890e6693
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ceaf58f0a52e9ccc71ac0312fea109aa3e2bf4268084398c1d145e87b3ba46a2"`
[INFO] running `"docker" "rm" "-f" "ceaf58f0a52e9ccc71ac0312fea109aa3e2bf4268084398c1d145e87b3ba46a2"`
[INFO] [stdout] ceaf58f0a52e9ccc71ac0312fea109aa3e2bf4268084398c1d145e87b3ba46a2