[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] checking AlexeyAkhunov/parse_bitcoin against master#b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 for pr-105483 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexeyAkhunov%2Fparse_bitcoin" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AlexeyAkhunov/parse_bitcoin on toolchain b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "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-7/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" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.21 [INFO] [stderr] Downloaded num-iter v0.1.33 [INFO] [stderr] Downloaded bit-vec v0.4.3 [INFO] [stderr] Downloaded gcc v0.3.43 [INFO] [stderr] Downloaded num-bigint v0.1.36 [INFO] [stderr] Downloaded rustc-serialize v0.3.22 [INFO] [stderr] Downloaded redox_syscall v0.1.16 [INFO] [stderr] Downloaded num-complex v0.1.36 [INFO] [stderr] Downloaded time v0.1.36 [INFO] [stderr] Downloaded num-integer v0.1.33 [INFO] [stderr] Downloaded num-rational v0.1.36 [INFO] [stderr] Downloaded num-traits v0.1.37 [INFO] [stderr] Downloaded num v0.1.37 [INFO] [stderr] Downloaded bloomfilter v0.0.10 [INFO] [stderr] Downloaded rust-base58 v0.0.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 925c4f8221937056ea7aebcf07f19832d606e9b2f4550c41845253f389e859d2 [INFO] running `Command { std: "docker" "start" "-a" "925c4f8221937056ea7aebcf07f19832d606e9b2f4550c41845253f389e859d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "925c4f8221937056ea7aebcf07f19832d606e9b2f4550c41845253f389e859d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "925c4f8221937056ea7aebcf07f19832d606e9b2f4550c41845253f389e859d2", kill_on_drop: false }` [INFO] [stdout] 925c4f8221937056ea7aebcf07f19832d606e9b2f4550c41845253f389e859d2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f0cb1b1bba0bb67d294b64bd648b5e72ddf0894fcb4b9118c690927c8a871ce9 [INFO] running `Command { std: "docker" "start" "-a" "f0cb1b1bba0bb67d294b64bd648b5e72ddf0894fcb4b9118c690927c8a871ce9", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.21 [INFO] [stderr] Checking num-traits v0.1.37 [INFO] [stderr] Checking rustc-serialize v0.3.22 [INFO] [stderr] Compiling gcc v0.3.43 [INFO] [stderr] Checking bit-vec v0.4.3 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking num-integer v0.1.33 [INFO] [stderr] Checking time v0.1.36 [INFO] [stderr] Checking num-iter v0.1.33 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking bloomfilter v0.0.10 [INFO] [stderr] Checking num-bigint v0.1.36 [INFO] [stderr] Checking num-complex v0.1.36 [INFO] [stderr] Checking num-rational v0.1.36 [INFO] [stderr] Checking num v0.1.37 [INFO] [stderr] Checking rust-base58 v0.0.4 [INFO] [stderr] Checking 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: `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: 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: 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: 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: multiple variants are never constructed [INFO] [stdout] --> src/main.rs:261:5 [INFO] [stdout] | [INFO] [stdout] 258 | enum Opcode { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] ... [INFO] [stdout] 261 | Op1Negate, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 262 | OpReserved, [INFO] [stdout] 263 | Op1, Op2, Op3, Op4, Op5, Op6, Op7, Op8, Op9, Op10, Op11, Op12, Op13, Op14, Op15, Op16, [INFO] [stdout] | ^^^^ [INFO] [stdout] 264 | OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify, [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] 265 | OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap, [INFO] [stdout] | ^^^^^^^ ^^^^^^ ^^^^^^^ ^^^^^^ ^^^^^^^ [INFO] [stdout] 266 | OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot, [INFO] [stdout] | ^^^^^^^ ^^^^^^ [INFO] [stdout] 267 | OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd, [INFO] [stdout] | ^^^^^ ^^^^^^^^ ^^^^^^ ^^^^^^^ ^^^^^^^^ ^^^^^ [INFO] [stdout] 268 | OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul, [INFO] [stdout] | ^^^^ ^^^^^ ^^^^^^ [INFO] [stdout] 269 | Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv, [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^ ^^^^^ ^^^^^ [INFO] [stdout] 270 | OpMod, OpLshift, OpRshift, OpBooland, OpBoolor, [INFO] [stdout] | ^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] 271 | OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] 272 | OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^ ^^^^^ [INFO] [stdout] 273 | OpWithin, OpRipemd160, OpSha1, OpSha256, OpHash160, [INFO] [stdout] 274 | OpHash256, OpCodeseparator, OpChecksig, OpChecksigverify, OpCheckmultisig, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 275 | OpCheckmultisigverify, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 276 | OpNop1, OpNop2, OpNop3, OpNop4, OpNop5, OpNop6, OpNop7, OpNop8, OpNop9, OpNop10, [INFO] [stdout] 277 | OpInvalidopcode = 0xFF, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple variants are never constructed [INFO] [stdout] --> src/main.rs:261:5 [INFO] [stdout] | [INFO] [stdout] 258 | enum Opcode { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] ... [INFO] [stdout] 261 | Op1Negate, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 262 | OpReserved, [INFO] [stdout] 263 | Op1, Op2, Op3, Op4, Op5, Op6, Op7, Op8, Op9, Op10, Op11, Op12, Op13, Op14, Op15, Op16, [INFO] [stdout] | ^^^^ [INFO] [stdout] 264 | OpNop, OpVer, OpIf, OpNotif, OpVerif, OpVerNotIf, OpElse, OpEndif, OpVerify, [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] 265 | OpReturn, OpToaltStack, OpFromaltstack, Op2Drop, Op2Dup, Op3Dup, Op2Over, Op2Rot, Op2Swap, [INFO] [stdout] | ^^^^^^^ ^^^^^^ ^^^^^^^ ^^^^^^ ^^^^^^^ [INFO] [stdout] 266 | OpIfdup, OpDepth, OpDrop, OpDup, OpNip, OpOver, OpPick, OpRoll, OpRot, [INFO] [stdout] | ^^^^^^^ ^^^^^^ [INFO] [stdout] 267 | OpSwap, OpTuck, OpCat, OpSubstr, OpLeft, OpRight, OpSize, OpInvert, OpAnd, [INFO] [stdout] | ^^^^^ ^^^^^^^^ ^^^^^^ ^^^^^^^ ^^^^^^^^ ^^^^^ [INFO] [stdout] 268 | OpOr, OpXor, OpEqual, OpEqualverify, OpReserved1, OpReserved2, Op1Add, Op1Sub, Op2Mul, [INFO] [stdout] | ^^^^ ^^^^^ ^^^^^^ [INFO] [stdout] 269 | Op2Div, OpNegate, OpAbs, OpNot, Op0NotEqual, OpAdd, OpSub, OpMul, OpDiv, [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^ ^^^^^ ^^^^^ [INFO] [stdout] 270 | OpMod, OpLshift, OpRshift, OpBooland, OpBoolor, [INFO] [stdout] | ^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] 271 | OpNumequal, OpNumequalverify, OpNumnotequal, OpLessthan, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] 272 | OpGreaterthan, OpLessthanorequal, OpGreaterthanorequal, OpMin, OpMax, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^ ^^^^^ [INFO] [stdout] 273 | OpWithin, OpRipemd160, OpSha1, OpSha256, OpHash160, [INFO] [stdout] 274 | OpHash256, OpCodeseparator, OpChecksig, OpChecksigverify, OpCheckmultisig, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 275 | OpCheckmultisigverify, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 276 | OpNop1, OpNop2, OpNop3, OpNop4, OpNop5, OpNop6, OpNop7, OpNop8, OpNop9, OpNop10, [INFO] [stdout] 277 | OpInvalidopcode = 0xFF, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [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: 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: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [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: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.11s [INFO] running `Command { std: "docker" "inspect" "f0cb1b1bba0bb67d294b64bd648b5e72ddf0894fcb4b9118c690927c8a871ce9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0cb1b1bba0bb67d294b64bd648b5e72ddf0894fcb4b9118c690927c8a871ce9", kill_on_drop: false }` [INFO] [stdout] f0cb1b1bba0bb67d294b64bd648b5e72ddf0894fcb4b9118c690927c8a871ce9