[INFO] cloning repository https://github.com/mpdrescher/huffman-compression [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mpdrescher/huffman-compression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpdrescher%2Fhuffman-compression", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpdrescher%2Fhuffman-compression'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f7270fd9505444ab81fa668aac53c656adf94f96 [INFO] testing mpdrescher/huffman-compression against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpdrescher%2Fhuffman-compression" "/workspace/builds/worker-25/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mpdrescher/huffman-compression on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mpdrescher/huffman-compression [INFO] finished tweaking git repo https://github.com/mpdrescher/huffman-compression [INFO] tweaked toml for git repo https://github.com/mpdrescher/huffman-compression written to /workspace/builds/worker-25/source/Cargo.toml [INFO] crate git repo https://github.com/mpdrescher/huffman-compression already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f060f1cfb54e39cc31ffe1fd57ae67197bfe9cc007a00db34f7caec9d377af0d [INFO] running `Command { std: "docker" "start" "-a" "f060f1cfb54e39cc31ffe1fd57ae67197bfe9cc007a00db34f7caec9d377af0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f060f1cfb54e39cc31ffe1fd57ae67197bfe9cc007a00db34f7caec9d377af0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f060f1cfb54e39cc31ffe1fd57ae67197bfe9cc007a00db34f7caec9d377af0d", kill_on_drop: false }` [INFO] [stdout] f060f1cfb54e39cc31ffe1fd57ae67197bfe9cc007a00db34f7caec9d377af0d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0a02f54d9b5e89fb181b1fc030ceef485a9a0b25e89676a6307a4bb4e991c03f [INFO] running `Command { std: "docker" "start" "-a" "0a02f54d9b5e89fb181b1fc030ceef485a9a0b25e89676a6307a4bb4e991c03f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/compression.rs:25:41 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn decompress(data: Data) -> Option<(Data)>//Option [INFO] [stdout] | ^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:106:2 [INFO] [stdout] | [INFO] [stdout] 106 | try!(file.write_all(content.as_slice())); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:105:17 [INFO] [stdout] | [INFO] [stdout] 105 | let mut file = try!(File::create(get_compressed_file_name(filepath))); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:113:2 [INFO] [stdout] | [INFO] [stdout] 113 | try!(file.write_all(data.as_slice())); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | let mut file = try!(File::create(filepath)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cur_byte` is never read [INFO] [stdout] --> src/huffmantree.rs:188:11 [INFO] [stdout] | [INFO] [stdout] 188 | let mut cur_byte: u8 = 4; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.62s [INFO] running `Command { std: "docker" "inspect" "0a02f54d9b5e89fb181b1fc030ceef485a9a0b25e89676a6307a4bb4e991c03f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a02f54d9b5e89fb181b1fc030ceef485a9a0b25e89676a6307a4bb4e991c03f", kill_on_drop: false }` [INFO] [stdout] 0a02f54d9b5e89fb181b1fc030ceef485a9a0b25e89676a6307a4bb4e991c03f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7723f110a3675355d42e907521ec158ce4ae35c8e9e93467ed37fd25523da09d [INFO] running `Command { std: "docker" "start" "-a" "7723f110a3675355d42e907521ec158ce4ae35c8e9e93467ed37fd25523da09d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/compression.rs:25:41 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn decompress(data: Data) -> Option<(Data)>//Option [INFO] [stdout] | ^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:106:2 [INFO] [stdout] | [INFO] [stdout] 106 | try!(file.write_all(content.as_slice())); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:105:17 [INFO] [stdout] | [INFO] [stdout] 105 | let mut file = try!(File::create(get_compressed_file_name(filepath))); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:113:2 [INFO] [stdout] | [INFO] [stdout] 113 | try!(file.write_all(data.as_slice())); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | let mut file = try!(File::create(filepath)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `cur_byte` is never read [INFO] [stdout] --> src/huffmantree.rs:188:11 [INFO] [stdout] | [INFO] [stdout] 188 | let mut cur_byte: u8 = 4; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.02s [INFO] running `Command { std: "docker" "inspect" "7723f110a3675355d42e907521ec158ce4ae35c8e9e93467ed37fd25523da09d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7723f110a3675355d42e907521ec158ce4ae35c8e9e93467ed37fd25523da09d", kill_on_drop: false }` [INFO] [stdout] 7723f110a3675355d42e907521ec158ce4ae35c8e9e93467ed37fd25523da09d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4663eb6766ad0733f0fb4b476b1b4201fa098ba3802798b1a5ae48ac2b204762 [INFO] running `Command { std: "docker" "start" "-a" "4663eb6766ad0733f0fb4b476b1b4201fa098ba3802798b1a5ae48ac2b204762", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/compression.rs:25:41 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn decompress(data: Data) -> Option<(Data)>//Option [INFO] [stderr] | ^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/main.rs:106:2 [INFO] [stderr] | [INFO] [stderr] 106 | try!(file.write_all(content.as_slice())); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/main.rs:105:17 [INFO] [stderr] | [INFO] [stderr] 105 | let mut file = try!(File::create(get_compressed_file_name(filepath))); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/main.rs:113:2 [INFO] [stderr] | [INFO] [stderr] 113 | try!(file.write_all(data.as_slice())); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stderr] --> src/main.rs:112:17 [INFO] [stderr] | [INFO] [stderr] 112 | let mut file = try!(File::create(filepath)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: value assigned to `cur_byte` is never read [INFO] [stderr] --> src/huffmantree.rs:188:11 [INFO] [stderr] | [INFO] [stderr] 188 | let mut cur_byte: u8 = 4; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: `huffman` (bin "huffman" test) generated 6 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huffman-cebab1514f974fbc) [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" "4663eb6766ad0733f0fb4b476b1b4201fa098ba3802798b1a5ae48ac2b204762", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4663eb6766ad0733f0fb4b476b1b4201fa098ba3802798b1a5ae48ac2b204762", kill_on_drop: false }` [INFO] [stdout] 4663eb6766ad0733f0fb4b476b1b4201fa098ba3802798b1a5ae48ac2b204762