[INFO] cloning repository https://github.com/V-Mann-Nick/huffman [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/V-Mann-Nick/huffman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FV-Mann-Nick%2Fhuffman", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FV-Mann-Nick%2Fhuffman'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] adbdfbf204a16da5a95431088547f1ae30a20079 [INFO] testing V-Mann-Nick/huffman against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FV-Mann-Nick%2Fhuffman" "/workspace/builds/worker-88/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-88/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/V-Mann-Nick/huffman on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/V-Mann-Nick/huffman [INFO] finished tweaking git repo https://github.com/V-Mann-Nick/huffman [INFO] tweaked toml for git repo https://github.com/V-Mann-Nick/huffman written to /workspace/builds/worker-88/source/Cargo.toml [INFO] crate git repo https://github.com/V-Mann-Nick/huffman already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded terminal_size v0.1.17 [INFO] [stderr] Downloaded num-format v0.4.0 [INFO] [stderr] Downloaded priority-queue v1.1.1 [INFO] [stderr] Downloaded endio_bit v0.2.0 [INFO] [stderr] Downloaded termprogress v0.3.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5d1c78ab785ed87f4dba855b117c1a5e6d13ef2b0d060c16a53e78fc84670675 [INFO] running `Command { std: "docker" "start" "-a" "5d1c78ab785ed87f4dba855b117c1a5e6d13ef2b0d060c16a53e78fc84670675", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5d1c78ab785ed87f4dba855b117c1a5e6d13ef2b0d060c16a53e78fc84670675", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d1c78ab785ed87f4dba855b117c1a5e6d13ef2b0d060c16a53e78fc84670675", kill_on_drop: false }` [INFO] [stdout] 5d1c78ab785ed87f4dba855b117c1a5e6d13ef2b0d060c16a53e78fc84670675 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e25b4193138f56b4d49ac77e82d671f7068b469502ca43c0c0373bbf05de711f [INFO] running `Command { std: "docker" "start" "-a" "e25b4193138f56b4d49ac77e82d671f7068b469502ca43c0c0373bbf05de711f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling endio_bit v0.2.0 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling priority-queue v1.1.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling termprogress v0.3.4 [INFO] [stderr] Compiling num-format v0.4.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/encode.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 61 | let _ = &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/encode.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 72 | let _ = &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 17s [INFO] running `Command { std: "docker" "inspect" "e25b4193138f56b4d49ac77e82d671f7068b469502ca43c0c0373bbf05de711f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e25b4193138f56b4d49ac77e82d671f7068b469502ca43c0c0373bbf05de711f", kill_on_drop: false }` [INFO] [stdout] e25b4193138f56b4d49ac77e82d671f7068b469502ca43c0c0373bbf05de711f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35fb2170faaded9316574414513b5913c67f2313ee0896f5d6a67ce4bbebb296 [INFO] running `Command { std: "docker" "start" "-a" "35fb2170faaded9316574414513b5913c67f2313ee0896f5d6a67ce4bbebb296", kill_on_drop: false }` [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/encode.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 61 | let _ = &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/encode.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 72 | let _ = &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/encode.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 61 | let _ = &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/encode.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 72 | let _ = &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "35fb2170faaded9316574414513b5913c67f2313ee0896f5d6a67ce4bbebb296", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35fb2170faaded9316574414513b5913c67f2313ee0896f5d6a67ce4bbebb296", kill_on_drop: false }` [INFO] [stdout] 35fb2170faaded9316574414513b5913c67f2313ee0896f5d6a67ce4bbebb296 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 9d844b9a755c5abe6f92cab0de562bb1c5e38cc18c5d9a9748091f2e41d482b6 [INFO] running `Command { std: "docker" "start" "-a" "9d844b9a755c5abe6f92cab0de562bb1c5e38cc18c5d9a9748091f2e41d482b6", kill_on_drop: false }` [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/encode.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 61 | let _ = &self.codes_from_node(root, BitVec::new(), &mut code_map); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/encode.rs:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 72 | let _ = &self.codes_from_node(&branch.unwrap(), bits, code_map); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `huffman` (lib) generated 2 warnings [INFO] [stderr] warning: `huffman` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huffman-b0234f323daaccff) [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] [stderr] Running unittests (/opt/rustwide/target/debug/deps/huf-374fed62b9acdadc) [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] [stderr] Doc-tests huffman [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" "9d844b9a755c5abe6f92cab0de562bb1c5e38cc18c5d9a9748091f2e41d482b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d844b9a755c5abe6f92cab0de562bb1c5e38cc18c5d9a9748091f2e41d482b6", kill_on_drop: false }` [INFO] [stdout] 9d844b9a755c5abe6f92cab0de562bb1c5e38cc18c5d9a9748091f2e41d482b6