[INFO] cloning repository https://github.com/1inguini/huffman [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1inguini/huffman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1inguini%2Fhuffman", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1inguini%2Fhuffman'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6f9311c16910cedb1bafb045e242b1689a62e000 [INFO] checking 1inguini/huffman against master#e652caa679a304af11fc04f1f12452f255a82593 for pr-98000 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1inguini%2Fhuffman" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/1inguini/huffman on toolchain e652caa679a304af11fc04f1f12452f255a82593 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/1inguini/huffman [INFO] finished tweaking git repo https://github.com/1inguini/huffman [INFO] tweaked toml for git repo https://github.com/1inguini/huffman written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/1inguini/huffman already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3530cb93a9e3466da0f6e5156037f0f8ca91054be431ceea09aef1743e70bb22 [INFO] running `Command { std: "docker" "start" "-a" "3530cb93a9e3466da0f6e5156037f0f8ca91054be431ceea09aef1743e70bb22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3530cb93a9e3466da0f6e5156037f0f8ca91054be431ceea09aef1743e70bb22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3530cb93a9e3466da0f6e5156037f0f8ca91054be431ceea09aef1743e70bb22", kill_on_drop: false }` [INFO] [stdout] 3530cb93a9e3466da0f6e5156037f0f8ca91054be431ceea09aef1743e70bb22 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0ab44b5378210b5d09dbdd752350e2cabacc62a9e7b1bc74c516a0a6ae48a0b1 [INFO] running `Command { std: "docker" "start" "-a" "0ab44b5378210b5d09dbdd752350e2cabacc62a9e7b1bc74c516a0a6ae48a0b1", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking funty v2.0.0 [INFO] [stderr] Checking textwrap v0.14.2 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking wyz v0.5.0 [INFO] [stderr] Compiling indexmap v1.8.0 [INFO] [stderr] Checking bitvec v1.0.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Compiling clap_derive v3.1.2 [INFO] [stderr] Checking clap v3.1.2 [INFO] [stderr] Checking huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::util` [INFO] [stdout] --> src/main.rs:136:9 [INFO] [stdout] | [INFO] [stdout] 136 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ptr::BitRef` [INFO] [stdout] --> src/main.rs:137:18 [INFO] [stdout] | [INFO] [stdout] 137 | use bitvec::{ptr::BitRef, slice::BitSlice, vec::BitVec}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `iter` [INFO] [stdout] --> src/main.rs:138:27 [INFO] [stdout] | [INFO] [stdout] 138 | use std::{fmt::Debug, iter, mem, ops::Index}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `collections::HashMap`, `fmt::Display`, `marker::PhantomData` [INFO] [stdout] --> src/main.rs:635:5 [INFO] [stdout] | [INFO] [stdout] 635 | collections::HashMap, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 636 | fmt::Display, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 639 | marker::PhantomData, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::util` [INFO] [stdout] --> src/main.rs:136:9 [INFO] [stdout] | [INFO] [stdout] 136 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ptr::BitRef` [INFO] [stdout] --> src/main.rs:137:18 [INFO] [stdout] | [INFO] [stdout] 137 | use bitvec::{ptr::BitRef, slice::BitSlice, vec::BitVec}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `iter` [INFO] [stdout] --> src/main.rs:138:27 [INFO] [stdout] | [INFO] [stdout] 138 | use std::{fmt::Debug, iter, mem, ops::Index}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `collections::HashMap`, `fmt::Display`, `marker::PhantomData` [INFO] [stdout] --> src/main.rs:635:5 [INFO] [stdout] | [INFO] [stdout] 635 | collections::HashMap, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 636 | fmt::Display, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 639 | marker::PhantomData, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `DuplicateCodes` [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | DuplicateCodes, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] = note: `CodeDefinitionError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn new(inner: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:148:16 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn new(symbol: Symbol) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `extend` [INFO] [stdout] --> src/main.rs:154:16 [INFO] [stdout] | [INFO] [stdout] 154 | pub fn extend(zero: Self, one: Self) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `encode` [INFO] [stdout] --> src/main.rs:163:16 [INFO] [stdout] | [INFO] [stdout] 163 | pub fn encode(&self, symbol: &Symbol) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `encode_sequence` [INFO] [stdout] --> src/main.rs:168:16 [INFO] [stdout] | [INFO] [stdout] 168 | pub fn encode_sequence( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `DuplicateCodes` [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | DuplicateCodes, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] = note: `CodeDefinitionError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn new(inner: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:148:16 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn new(symbol: Symbol) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `extend` [INFO] [stdout] --> src/main.rs:154:16 [INFO] [stdout] | [INFO] [stdout] 154 | pub fn extend(zero: Self, one: Self) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `encode` [INFO] [stdout] --> src/main.rs:163:16 [INFO] [stdout] | [INFO] [stdout] 163 | pub fn encode(&self, symbol: &Symbol) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `encode_sequence` [INFO] [stdout] --> src/main.rs:168:16 [INFO] [stdout] | [INFO] [stdout] 168 | pub fn encode_sequence( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 20.69s [INFO] running `Command { std: "docker" "inspect" "0ab44b5378210b5d09dbdd752350e2cabacc62a9e7b1bc74c516a0a6ae48a0b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ab44b5378210b5d09dbdd752350e2cabacc62a9e7b1bc74c516a0a6ae48a0b1", kill_on_drop: false }` [INFO] [stdout] 0ab44b5378210b5d09dbdd752350e2cabacc62a9e7b1bc74c516a0a6ae48a0b1