[INFO] cloning repository https://github.com/AlexeyAkhunov/parse_bitcoin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexeyAkhunov/parse_bitcoin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexeyAkhunov%2Fparse_bitcoin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexeyAkhunov%2Fparse_bitcoin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a89a0985e773f9f7e58d1efda42d292e6404ec6
[INFO] testing AlexeyAkhunov/parse_bitcoin against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexeyAkhunov%2Fparse_bitcoin" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlexeyAkhunov/parse_bitcoin on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlexeyAkhunov/parse_bitcoin
[INFO] finished tweaking git repo https://github.com/AlexeyAkhunov/parse_bitcoin
[INFO] tweaked toml for git repo https://github.com/AlexeyAkhunov/parse_bitcoin written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/AlexeyAkhunov/parse_bitcoin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d18841efc92294b9045a5ced05f8f22dec8449403277ac8d2466932b84496e9
[INFO] running `Command { std: "docker" "start" "-a" "7d18841efc92294b9045a5ced05f8f22dec8449403277ac8d2466932b84496e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d18841efc92294b9045a5ced05f8f22dec8449403277ac8d2466932b84496e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d18841efc92294b9045a5ced05f8f22dec8449403277ac8d2466932b84496e9", kill_on_drop: false }`
[INFO] [stdout] 7d18841efc92294b9045a5ced05f8f22dec8449403277ac8d2466932b84496e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5fedcef7476806ab20666f14572e064c32c6775bca40a460dff2d71d37c43e1
[INFO] running `Command { std: "docker" "start" "-a" "a5fedcef7476806ab20666f14572e064c32c6775bca40a460dff2d71d37c43e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling bloomfilter v0.0.10
[INFO] [stderr]    Compiling num-bigint v0.1.36
[INFO] [stderr]    Compiling num-complex v0.1.36
[INFO] [stderr]    Compiling num-rational v0.1.36
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling rust-base58 v0.0.4
[INFO] [stderr]    Compiling parse_bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::Metadata`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::Metadata;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/main.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Read, BufReader, Seek, SeekFrom};
[INFO] [stdout]   |                                ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `format`
[INFO] [stdout]  --> src/main.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::{Write, format};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FromBase58`
[INFO] [stdout]   --> src/main.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 | use rust_base58::{ToBase58, FromBase58};
[INFO] [stdout]    |                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bloomfilter::Bloom`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use bloomfilter::Bloom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:71:71
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Err(why) => panic!("couldn't create output file: {}", why.description()),
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filesize`
[INFO] [stdout]    --> src/main.rs:113:45
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn read_blocks(prefix: u8, file: &mut File, filesize: u64, initial_block: u32, state: &mut State) -> u32 {
[INFO] [stdout]     |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filesize`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         Ok(len) => {
[INFO] [stdout]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let mut out_file = match File::create(out_file_name) {
[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: variant is never constructed: `Op1Negate`
[INFO] [stdout]    --> src/main.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 261 |     Op1Negate,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op15`
[INFO] [stdout]    --> src/main.rs:263:80
[INFO] [stdout]     |
[INFO] [stdout] 263 |     Op1, Op2, Op3, Op4, Op5, Op6, Op7, Op8, Op9, Op10, Op11, Op12, Op13, Op14, Op15, Op16,
[INFO] [stdout]     |                                                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpVerif`
[INFO] [stdout]    --> src/main.rs:264:34
[INFO] [stdout]     |
[INFO] [stdout] 264 |     OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify,
[INFO] [stdout]     |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpVerNotIf`
[INFO] [stdout]    --> src/main.rs:264:43
[INFO] [stdout]     |
[INFO] [stdout] 264 |     OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify,
[INFO] [stdout]     |                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Drop`
[INFO] [stdout]    --> src/main.rs:265:45
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op3Dup`
[INFO] [stdout]    --> src/main.rs:265:62
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Over`
[INFO] [stdout]    --> src/main.rs:265:70
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Rot`
[INFO] [stdout]    --> src/main.rs:265:79
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                                               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Swap`
[INFO] [stdout]    --> src/main.rs:265:87
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                                                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpIfdup`
[INFO] [stdout]    --> src/main.rs:266:5
[INFO] [stdout]     |
[INFO] [stdout] 266 |     OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpOver`
[INFO] [stdout]    --> src/main.rs:266:45
[INFO] [stdout]     |
[INFO] [stdout] 266 |     OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot,
[INFO] [stdout]     |                                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpCat`
[INFO] [stdout]    --> src/main.rs:267:21
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpSubstr`
[INFO] [stdout]    --> src/main.rs:267:28
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpLeft`
[INFO] [stdout]    --> src/main.rs:267:38
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpRight`
[INFO] [stdout]    --> src/main.rs:267:46
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpInvert`
[INFO] [stdout]    --> src/main.rs:267:63
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                                               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpAnd`
[INFO] [stdout]    --> src/main.rs:267:73
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                                                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpOr`
[INFO] [stdout]    --> src/main.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpXor`
[INFO] [stdout]    --> src/main.rs:268:11
[INFO] [stdout]     |
[INFO] [stdout] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Mul`
[INFO] [stdout]    --> src/main.rs:268:84
[INFO] [stdout]     |
[INFO] [stdout] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stdout]     |                                                                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Div`
[INFO] [stdout]    --> src/main.rs:269:5
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op0NotEqual`
[INFO] [stdout]    --> src/main.rs:269:37
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpMul`
[INFO] [stdout]    --> src/main.rs:269:64
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |                                                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpDiv`
[INFO] [stdout]    --> src/main.rs:269:71
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |                                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpMod`
[INFO] [stdout]    --> src/main.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpLshift`
[INFO] [stdout]    --> src/main.rs:270:12
[INFO] [stdout]     |
[INFO] [stdout] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpRshift`
[INFO] [stdout]    --> src/main.rs:270:22
[INFO] [stdout]     |
[INFO] [stdout] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stdout]     |                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpNumequalverify`
[INFO] [stdout]    --> src/main.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 271 |     OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpNumnotequal`
[INFO] [stdout]    --> src/main.rs:271:35
[INFO] [stdout]     |
[INFO] [stdout] 271 |     OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpLessthanorequal`
[INFO] [stdout]    --> src/main.rs:272:20
[INFO] [stdout]     |
[INFO] [stdout] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpGreaterthanorequal`
[INFO] [stdout]    --> src/main.rs:272:39
[INFO] [stdout]     |
[INFO] [stdout] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpMax`
[INFO] [stdout]    --> src/main.rs:272:68
[INFO] [stdout]     |
[INFO] [stdout] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stdout]     |                                                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpCodeseparator`
[INFO] [stdout]    --> src/main.rs:274:16
[INFO] [stdout]     |
[INFO] [stdout] 274 |     OpHash256, OpCodeseparator, OpChecksig, OpChecksigverify, OpCheckmultisig,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpCheckmultisigverify`
[INFO] [stdout]    --> src/main.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 |     OpCheckmultisigverify,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpInvalidopcode`
[INFO] [stdout]    --> src/main.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 277 |     OpInvalidopcode = 0xFF,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         write!(&mut out_file_name, "output_{}.txt", prefix);
[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]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             writeln!(&mut writer, "{} {} {}", addr, timevalue.time, timevalue.value);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         reader.read_exact(&mut buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 47 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.62s
[INFO] running `Command { std: "docker" "inspect" "a5fedcef7476806ab20666f14572e064c32c6775bca40a460dff2d71d37c43e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5fedcef7476806ab20666f14572e064c32c6775bca40a460dff2d71d37c43e1", kill_on_drop: false }`
[INFO] [stdout] a5fedcef7476806ab20666f14572e064c32c6775bca40a460dff2d71d37c43e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f949a17ed8b7c3ece5ce886d49444d97454861b6bee1a540b3d504b3643684fa
[INFO] running `Command { std: "docker" "start" "-a" "f949a17ed8b7c3ece5ce886d49444d97454861b6bee1a540b3d504b3643684fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling parse_bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::Metadata`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::Metadata;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stdout]  --> src/main.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Read, BufReader, Seek, SeekFrom};
[INFO] [stdout]   |                                ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `format`
[INFO] [stdout]  --> src/main.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::{Write, format};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FromBase58`
[INFO] [stdout]   --> src/main.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 | use rust_base58::{ToBase58, FromBase58};
[INFO] [stdout]    |                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bloomfilter::Bloom`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use bloomfilter::Bloom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:71:71
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Err(why) => panic!("couldn't create output file: {}", why.description()),
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filesize`
[INFO] [stdout]    --> src/main.rs:113:45
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn read_blocks(prefix: u8, file: &mut File, filesize: u64, initial_block: u32, state: &mut State) -> u32 {
[INFO] [stdout]     |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filesize`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |         Ok(len) => {
[INFO] [stdout]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let mut out_file = match File::create(out_file_name) {
[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: variant is never constructed: `Op1Negate`
[INFO] [stdout]    --> src/main.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 261 |     Op1Negate,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op15`
[INFO] [stdout]    --> src/main.rs:263:80
[INFO] [stdout]     |
[INFO] [stdout] 263 |     Op1, Op2, Op3, Op4, Op5, Op6, Op7, Op8, Op9, Op10, Op11, Op12, Op13, Op14, Op15, Op16,
[INFO] [stdout]     |                                                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpVerif`
[INFO] [stdout]    --> src/main.rs:264:34
[INFO] [stdout]     |
[INFO] [stdout] 264 |     OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify,
[INFO] [stdout]     |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpVerNotIf`
[INFO] [stdout]    --> src/main.rs:264:43
[INFO] [stdout]     |
[INFO] [stdout] 264 |     OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify,
[INFO] [stdout]     |                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Drop`
[INFO] [stdout]    --> src/main.rs:265:45
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op3Dup`
[INFO] [stdout]    --> src/main.rs:265:62
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Over`
[INFO] [stdout]    --> src/main.rs:265:70
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Rot`
[INFO] [stdout]    --> src/main.rs:265:79
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                                               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Swap`
[INFO] [stdout]    --> src/main.rs:265:87
[INFO] [stdout]     |
[INFO] [stdout] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stdout]     |                                                                                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpIfdup`
[INFO] [stdout]    --> src/main.rs:266:5
[INFO] [stdout]     |
[INFO] [stdout] 266 |     OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpOver`
[INFO] [stdout]    --> src/main.rs:266:45
[INFO] [stdout]     |
[INFO] [stdout] 266 |     OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot,
[INFO] [stdout]     |                                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpCat`
[INFO] [stdout]    --> src/main.rs:267:21
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpSubstr`
[INFO] [stdout]    --> src/main.rs:267:28
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpLeft`
[INFO] [stdout]    --> src/main.rs:267:38
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpRight`
[INFO] [stdout]    --> src/main.rs:267:46
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpInvert`
[INFO] [stdout]    --> src/main.rs:267:63
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                                               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpAnd`
[INFO] [stdout]    --> src/main.rs:267:73
[INFO] [stdout]     |
[INFO] [stdout] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stdout]     |                                                                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpOr`
[INFO] [stdout]    --> src/main.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpXor`
[INFO] [stdout]    --> src/main.rs:268:11
[INFO] [stdout]     |
[INFO] [stdout] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Mul`
[INFO] [stdout]    --> src/main.rs:268:84
[INFO] [stdout]     |
[INFO] [stdout] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stdout]     |                                                                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op2Div`
[INFO] [stdout]    --> src/main.rs:269:5
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Op0NotEqual`
[INFO] [stdout]    --> src/main.rs:269:37
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpMul`
[INFO] [stdout]    --> src/main.rs:269:64
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |                                                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpDiv`
[INFO] [stdout]    --> src/main.rs:269:71
[INFO] [stdout]     |
[INFO] [stdout] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stdout]     |                                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpMod`
[INFO] [stdout]    --> src/main.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpLshift`
[INFO] [stdout]    --> src/main.rs:270:12
[INFO] [stdout]     |
[INFO] [stdout] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpRshift`
[INFO] [stdout]    --> src/main.rs:270:22
[INFO] [stdout]     |
[INFO] [stdout] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stdout]     |                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpNumequalverify`
[INFO] [stdout]    --> src/main.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 271 |     OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpNumnotequal`
[INFO] [stdout]    --> src/main.rs:271:35
[INFO] [stdout]     |
[INFO] [stdout] 271 |     OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan,
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpLessthanorequal`
[INFO] [stdout]    --> src/main.rs:272:20
[INFO] [stdout]     |
[INFO] [stdout] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpGreaterthanorequal`
[INFO] [stdout]    --> src/main.rs:272:39
[INFO] [stdout]     |
[INFO] [stdout] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpMax`
[INFO] [stdout]    --> src/main.rs:272:68
[INFO] [stdout]     |
[INFO] [stdout] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stdout]     |                                                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpCodeseparator`
[INFO] [stdout]    --> src/main.rs:274:16
[INFO] [stdout]     |
[INFO] [stdout] 274 |     OpHash256, OpCodeseparator, OpChecksig, OpChecksigverify, OpCheckmultisig,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpCheckmultisigverify`
[INFO] [stdout]    --> src/main.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 |     OpCheckmultisigverify,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OpInvalidopcode`
[INFO] [stdout]    --> src/main.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 277 |     OpInvalidopcode = 0xFF,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         write!(&mut out_file_name, "output_{}.txt", prefix);
[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]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             writeln!(&mut writer, "{} {} {}", addr, timevalue.time, timevalue.value);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         reader.read_exact(&mut buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 47 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "f949a17ed8b7c3ece5ce886d49444d97454861b6bee1a540b3d504b3643684fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f949a17ed8b7c3ece5ce886d49444d97454861b6bee1a540b3d504b3643684fa", kill_on_drop: false }`
[INFO] [stdout] f949a17ed8b7c3ece5ce886d49444d97454861b6bee1a540b3d504b3643684fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4325989244dbcbfd49362d3c33ab8a12557f5caa11a2cbf8d58696250500cc24
[INFO] running `Command { std: "docker" "start" "-a" "4325989244dbcbfd49362d3c33ab8a12557f5caa11a2cbf8d58696250500cc24", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::fs::Metadata`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::Metadata;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stderr]  --> src/main.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{Read, BufReader, Seek, SeekFrom};
[INFO] [stderr]   |                                ^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `format`
[INFO] [stderr]  --> src/main.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fmt::{Write, format};
[INFO] [stderr]   |                       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FromBase58`
[INFO] [stderr]   --> src/main.rs:16:29
[INFO] [stderr]    |
[INFO] [stderr] 16 | use rust_base58::{ToBase58, FromBase58};
[INFO] [stderr]    |                             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bloomfilter::Bloom`
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use bloomfilter::Bloom;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:71:71
[INFO] [stderr]    |
[INFO] [stderr] 71 |             Err(why) => panic!("couldn't create output file: {}", why.description()),
[INFO] [stderr]    |                                                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filesize`
[INFO] [stderr]    --> src/main.rs:113:45
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn read_blocks(prefix: u8, file: &mut File, filesize: u64, initial_block: u32, state: &mut State) -> u32 {
[INFO] [stderr]     |                                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filesize`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/main.rs:141:12
[INFO] [stderr]     |
[INFO] [stderr] 141 |         Ok(len) => {
[INFO] [stderr]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let mut out_file = match File::create(out_file_name) {
[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: variant is never constructed: `Op1Negate`
[INFO] [stderr]    --> src/main.rs:261:5
[INFO] [stderr]     |
[INFO] [stderr] 261 |     Op1Negate,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op15`
[INFO] [stderr]    --> src/main.rs:263:80
[INFO] [stderr]     |
[INFO] [stderr] 263 |     Op1, Op2, Op3, Op4, Op5, Op6, Op7, Op8, Op9, Op10, Op11, Op12, Op13, Op14, Op15, Op16,
[INFO] [stderr]     |                                                                                ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpVerif`
[INFO] [stderr]    --> src/main.rs:264:34
[INFO] [stderr]     |
[INFO] [stderr] 264 |     OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify,
[INFO] [stderr]     |                                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpVerNotIf`
[INFO] [stderr]    --> src/main.rs:264:43
[INFO] [stderr]     |
[INFO] [stderr] 264 |     OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify,
[INFO] [stderr]     |                                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op2Drop`
[INFO] [stderr]    --> src/main.rs:265:45
[INFO] [stderr]     |
[INFO] [stderr] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stderr]     |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op3Dup`
[INFO] [stderr]    --> src/main.rs:265:62
[INFO] [stderr]     |
[INFO] [stderr] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stderr]     |                                                              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op2Over`
[INFO] [stderr]    --> src/main.rs:265:70
[INFO] [stderr]     |
[INFO] [stderr] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stderr]     |                                                                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op2Rot`
[INFO] [stderr]    --> src/main.rs:265:79
[INFO] [stderr]     |
[INFO] [stderr] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stderr]     |                                                                               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op2Swap`
[INFO] [stderr]    --> src/main.rs:265:87
[INFO] [stderr]     |
[INFO] [stderr] 265 |     OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap,
[INFO] [stderr]     |                                                                                       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpIfdup`
[INFO] [stderr]    --> src/main.rs:266:5
[INFO] [stderr]     |
[INFO] [stderr] 266 |     OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpOver`
[INFO] [stderr]    --> src/main.rs:266:45
[INFO] [stderr]     |
[INFO] [stderr] 266 |     OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot,
[INFO] [stderr]     |                                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpCat`
[INFO] [stderr]    --> src/main.rs:267:21
[INFO] [stderr]     |
[INFO] [stderr] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpSubstr`
[INFO] [stderr]    --> src/main.rs:267:28
[INFO] [stderr]     |
[INFO] [stderr] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stderr]     |                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpLeft`
[INFO] [stderr]    --> src/main.rs:267:38
[INFO] [stderr]     |
[INFO] [stderr] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stderr]     |                                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpRight`
[INFO] [stderr]    --> src/main.rs:267:46
[INFO] [stderr]     |
[INFO] [stderr] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpInvert`
[INFO] [stderr]    --> src/main.rs:267:63
[INFO] [stderr]     |
[INFO] [stderr] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stderr]     |                                                               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpAnd`
[INFO] [stderr]    --> src/main.rs:267:73
[INFO] [stderr]     |
[INFO] [stderr] 267 |     OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd,
[INFO] [stderr]     |                                                                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpOr`
[INFO] [stderr]    --> src/main.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpXor`
[INFO] [stderr]    --> src/main.rs:268:11
[INFO] [stderr]     |
[INFO] [stderr] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op2Mul`
[INFO] [stderr]    --> src/main.rs:268:84
[INFO] [stderr]     |
[INFO] [stderr] 268 |     OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul,
[INFO] [stderr]     |                                                                                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op2Div`
[INFO] [stderr]    --> src/main.rs:269:5
[INFO] [stderr]     |
[INFO] [stderr] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Op0NotEqual`
[INFO] [stderr]    --> src/main.rs:269:37
[INFO] [stderr]     |
[INFO] [stderr] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stderr]     |                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpMul`
[INFO] [stderr]    --> src/main.rs:269:64
[INFO] [stderr]     |
[INFO] [stderr] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stderr]     |                                                                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpDiv`
[INFO] [stderr]    --> src/main.rs:269:71
[INFO] [stderr]     |
[INFO] [stderr] 269 |     Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv,
[INFO] [stderr]     |                                                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpMod`
[INFO] [stderr]    --> src/main.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpLshift`
[INFO] [stderr]    --> src/main.rs:270:12
[INFO] [stderr]     |
[INFO] [stderr] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpRshift`
[INFO] [stderr]    --> src/main.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |     OpMod, OpLshift, OpRshift, OpBooland, OpBoolor,
[INFO] [stderr]     |                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpNumequalverify`
[INFO] [stderr]    --> src/main.rs:271:17
[INFO] [stderr]     |
[INFO] [stderr] 271 |     OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpNumnotequal`
[INFO] [stderr]    --> src/main.rs:271:35
[INFO] [stderr]     |
[INFO] [stderr] 271 |     OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan,
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpLessthanorequal`
[INFO] [stderr]    --> src/main.rs:272:20
[INFO] [stderr]     |
[INFO] [stderr] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpGreaterthanorequal`
[INFO] [stderr]    --> src/main.rs:272:39
[INFO] [stderr]     |
[INFO] [stderr] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpMax`
[INFO] [stderr]    --> src/main.rs:272:68
[INFO] [stderr]     |
[INFO] [stderr] 272 |     OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax,
[INFO] [stderr]     |                                                                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpCodeseparator`
[INFO] [stderr]    --> src/main.rs:274:16
[INFO] [stderr]     |
[INFO] [stderr] 274 |     OpHash256, OpCodeseparator, OpChecksig, OpChecksigverify, OpCheckmultisig,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpCheckmultisigverify`
[INFO] [stderr]    --> src/main.rs:275:5
[INFO] [stderr]     |
[INFO] [stderr] 275 |     OpCheckmultisigverify,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OpInvalidopcode`
[INFO] [stderr]    --> src/main.rs:277:5
[INFO] [stderr]     |
[INFO] [stderr] 277 |     OpInvalidopcode = 0xFF,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         write!(&mut out_file_name, "output_{}.txt", prefix);
[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]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             writeln!(&mut writer, "{} {} {}", addr, timevalue.time, timevalue.value);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         reader.read_exact(&mut buf);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 47 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parse_bitcoin-2667a8886f56a297)
[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" "4325989244dbcbfd49362d3c33ab8a12557f5caa11a2cbf8d58696250500cc24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4325989244dbcbfd49362d3c33ab8a12557f5caa11a2cbf8d58696250500cc24", kill_on_drop: false }`
[INFO] [stdout] 4325989244dbcbfd49362d3c33ab8a12557f5caa11a2cbf8d58696250500cc24
