[INFO] cloning repository https://github.com/julian-goldsmith/huffman-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/julian-goldsmith/huffman-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulian-goldsmith%2Fhuffman-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulian-goldsmith%2Fhuffman-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fc941ad26584544c0c6a7c446d7d73c2c337d9b8 [INFO] testing julian-goldsmith/huffman-rust against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulian-goldsmith%2Fhuffman-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/julian-goldsmith/huffman-rust on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/julian-goldsmith/huffman-rust [INFO] finished tweaking git repo https://github.com/julian-goldsmith/huffman-rust [INFO] tweaked toml for git repo https://github.com/julian-goldsmith/huffman-rust written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/julian-goldsmith/huffman-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7c3409b26320b920396c495e74c7e8d94f1bf791cebdf16d35a99a9071334a9d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7c3409b26320b920396c495e74c7e8d94f1bf791cebdf16d35a99a9071334a9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c3409b26320b920396c495e74c7e8d94f1bf791cebdf16d35a99a9071334a9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c3409b26320b920396c495e74c7e8d94f1bf791cebdf16d35a99a9071334a9d", kill_on_drop: false }` [INFO] [stdout] 7c3409b26320b920396c495e74c7e8d94f1bf791cebdf16d35a99a9071334a9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] afc428575451c8cfa58f1ef38081889aa736b66d38327f0e15a056c0829f5f0d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "afc428575451c8cfa58f1ef38081889aa736b66d38327f0e15a056c0829f5f0d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.31 [INFO] [stderr] Compiling byteorder v1.1.0 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Compiling huffman-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/mtf.rs:12:29 [INFO] [stdout] | [INFO] [stdout] 12 | out.push(idx as u8);; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitstream.rs:87:38 [INFO] [stdout] | [INFO] [stdout] 87 | pub fn write(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 87 - pub fn write(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] 87 + pub fn write(&self, writer: &mut dyn Write) -> io::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitstream.rs:107:30 [INFO] [stdout] | [INFO] [stdout] 107 | pub fn read(reader: &mut Read) -> io::Result> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 107 - pub fn read(reader: &mut Read) -> io::Result> { [INFO] [stdout] 107 + pub fn read(reader: &mut dyn Read) -> io::Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:37:40 [INFO] [stdout] | [INFO] [stdout] 37 | fn write_freqs(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 37 - fn write_freqs(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] 37 + fn write_freqs(&self, writer: &mut dyn Write) -> io::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:54:32 [INFO] [stdout] | [INFO] [stdout] 54 | fn read_freqs(reader: &mut Read) -> io::Result>> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 54 - fn read_freqs(reader: &mut Read) -> io::Result>> { [INFO] [stdout] 54 + fn read_freqs(reader: &mut dyn Read) -> io::Result>> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:73:42 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn write(&self, mut writer: &mut Write) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 73 - pub fn write(&self, mut writer: &mut Write) -> io::Result { [INFO] [stdout] 73 + pub fn write(&self, mut writer: &mut dyn Write) -> io::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:87:34 [INFO] [stdout] | [INFO] [stdout] 87 | pub fn read(mut reader: &mut Read) -> io::Result> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 87 - pub fn read(mut reader: &mut Read) -> io::Result> { [INFO] [stdout] 87 + pub fn read(mut reader: &mut dyn Read) -> io::Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitstream.rs:170:19 [INFO] [stdout] | [INFO] [stdout] 170 | (self as &Display).fmt(f) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 170 - (self as &Display).fmt(f) [INFO] [stdout] 170 + (self as &dyn Display).fmt(f) [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:23:56 [INFO] [stdout] | [INFO] [stdout] 23 | ... 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:43:56 [INFO] [stdout] | [INFO] [stdout] 43 | ... why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `byte_len` [INFO] [stdout] --> src/huffman/mod.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn byte_len(&self) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.99s [INFO] running `Command { std: "docker" "inspect" "afc428575451c8cfa58f1ef38081889aa736b66d38327f0e15a056c0829f5f0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "afc428575451c8cfa58f1ef38081889aa736b66d38327f0e15a056c0829f5f0d", kill_on_drop: false }` [INFO] [stdout] afc428575451c8cfa58f1ef38081889aa736b66d38327f0e15a056c0829f5f0d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 20788cf321a52c2838911fe0a995d9e5fbd6e8d6524393499cfd0d3e50795aa0 [INFO] running `Command { std: "docker" "start" "-a" "20788cf321a52c2838911fe0a995d9e5fbd6e8d6524393499cfd0d3e50795aa0", kill_on_drop: false }` [INFO] [stderr] Compiling huffman-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/mtf.rs:12:29 [INFO] [stdout] | [INFO] [stdout] 12 | out.push(idx as u8);; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitstream.rs:87:38 [INFO] [stdout] | [INFO] [stdout] 87 | pub fn write(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 87 - pub fn write(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] 87 + pub fn write(&self, writer: &mut dyn Write) -> io::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitstream.rs:107:30 [INFO] [stdout] | [INFO] [stdout] 107 | pub fn read(reader: &mut Read) -> io::Result> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 107 - pub fn read(reader: &mut Read) -> io::Result> { [INFO] [stdout] 107 + pub fn read(reader: &mut dyn Read) -> io::Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:37:40 [INFO] [stdout] | [INFO] [stdout] 37 | fn write_freqs(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 37 - fn write_freqs(&self, writer: &mut Write) -> io::Result { [INFO] [stdout] 37 + fn write_freqs(&self, writer: &mut dyn Write) -> io::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:54:32 [INFO] [stdout] | [INFO] [stdout] 54 | fn read_freqs(reader: &mut Read) -> io::Result>> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 54 - fn read_freqs(reader: &mut Read) -> io::Result>> { [INFO] [stdout] 54 + fn read_freqs(reader: &mut dyn Read) -> io::Result>> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:73:42 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn write(&self, mut writer: &mut Write) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 73 - pub fn write(&self, mut writer: &mut Write) -> io::Result { [INFO] [stdout] 73 + pub fn write(&self, mut writer: &mut dyn Write) -> io::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/huffman/mod.rs:87:34 [INFO] [stdout] | [INFO] [stdout] 87 | pub fn read(mut reader: &mut Read) -> io::Result> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 87 - pub fn read(mut reader: &mut Read) -> io::Result> { [INFO] [stdout] 87 + pub fn read(mut reader: &mut dyn Read) -> io::Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitstream.rs:170:19 [INFO] [stdout] | [INFO] [stdout] 170 | (self as &Display).fmt(f) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 170 - (self as &Display).fmt(f) [INFO] [stdout] 170 + (self as &dyn Display).fmt(f) [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:23:56 [INFO] [stdout] | [INFO] [stdout] 23 | ... 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:43:56 [INFO] [stdout] | [INFO] [stdout] 43 | ... why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `byte_len` [INFO] [stdout] --> src/huffman/mod.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn byte_len(&self) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.00s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman_rust-8258f137ed51a935) [INFO] running `Command { std: "docker" "inspect" "20788cf321a52c2838911fe0a995d9e5fbd6e8d6524393499cfd0d3e50795aa0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20788cf321a52c2838911fe0a995d9e5fbd6e8d6524393499cfd0d3e50795aa0", kill_on_drop: false }` [INFO] [stdout] 20788cf321a52c2838911fe0a995d9e5fbd6e8d6524393499cfd0d3e50795aa0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c53476a68e0719dbc896c664fc06d0dd122a89bfc91dad460e6a40d6d64c0ebb [INFO] running `Command { std: "docker" "start" "-a" "c53476a68e0719dbc896c664fc06d0dd122a89bfc91dad460e6a40d6d64c0ebb", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/mtf.rs:12:29 [INFO] [stderr] | [INFO] [stderr] 12 | out.push(idx as u8);; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/bitstream.rs:87:38 [INFO] [stderr] | [INFO] [stderr] 87 | pub fn write(&self, writer: &mut Write) -> io::Result { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 87 - pub fn write(&self, writer: &mut Write) -> io::Result { [INFO] [stderr] 87 + pub fn write(&self, writer: &mut dyn Write) -> io::Result { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/bitstream.rs:107:30 [INFO] [stderr] | [INFO] [stderr] 107 | pub fn read(reader: &mut Read) -> io::Result> { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 107 - pub fn read(reader: &mut Read) -> io::Result> { [INFO] [stderr] 107 + pub fn read(reader: &mut dyn Read) -> io::Result> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/huffman/mod.rs:37:40 [INFO] [stderr] | [INFO] [stderr] 37 | fn write_freqs(&self, writer: &mut Write) -> io::Result { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 37 - fn write_freqs(&self, writer: &mut Write) -> io::Result { [INFO] [stderr] 37 + fn write_freqs(&self, writer: &mut dyn Write) -> io::Result { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/huffman/mod.rs:54:32 [INFO] [stderr] | [INFO] [stderr] 54 | fn read_freqs(reader: &mut Read) -> io::Result>> { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 54 - fn read_freqs(reader: &mut Read) -> io::Result>> { [INFO] [stderr] 54 + fn read_freqs(reader: &mut dyn Read) -> io::Result>> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/huffman/mod.rs:73:42 [INFO] [stderr] | [INFO] [stderr] 73 | pub fn write(&self, mut writer: &mut Write) -> io::Result { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 73 - pub fn write(&self, mut writer: &mut Write) -> io::Result { [INFO] [stderr] 73 + pub fn write(&self, mut writer: &mut dyn Write) -> io::Result { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/huffman/mod.rs:87:34 [INFO] [stderr] | [INFO] [stderr] 87 | pub fn read(mut reader: &mut Read) -> io::Result> { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 87 - pub fn read(mut reader: &mut Read) -> io::Result> { [INFO] [stderr] 87 + pub fn read(mut reader: &mut dyn Read) -> io::Result> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/bitstream.rs:170:19 [INFO] [stderr] | [INFO] [stderr] 170 | (self as &Display).fmt(f) [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 170 - (self as &Display).fmt(f) [INFO] [stderr] 170 + (self as &dyn Display).fmt(f) [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:23:56 [INFO] [stderr] | [INFO] [stderr] 23 | ... why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [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:43:56 [INFO] [stderr] | [INFO] [stderr] 43 | ... why.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `byte_len` [INFO] [stderr] --> src/huffman/mod.rs:33:12 [INFO] [stderr] | [INFO] [stderr] 33 | pub fn byte_len(&self) -> usize { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `huffman-rust` (bin "huffman-rust" test) generated 11 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman_rust-8258f137ed51a935) [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test bwt::test::decode ... ok [INFO] [stdout] test rle::test::decode_test ... ok [INFO] [stdout] test rle::test::encode_test ... ok [INFO] [stdout] test bwt::test::encode ... ok [INFO] [stdout] test mtf::test::encode_test ... ok [INFO] [stdout] test bwt::test::encode_2 ... ok [INFO] [stdout] test mtf::test::decode_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c53476a68e0719dbc896c664fc06d0dd122a89bfc91dad460e6a40d6d64c0ebb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c53476a68e0719dbc896c664fc06d0dd122a89bfc91dad460e6a40d6d64c0ebb", kill_on_drop: false }` [INFO] [stdout] c53476a68e0719dbc896c664fc06d0dd122a89bfc91dad460e6a40d6d64c0ebb