[INFO] fetching crate codecs 0.0.1...
[INFO] checking codecs-0.0.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate codecs 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate codecs 0.0.1
[INFO] finished tweaking crates.io crate codecs 0.0.1
[INFO] tweaked toml for crates.io crate codecs 0.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate codecs 0.0.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding core2 v0.3.3 (available: v0.4.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 680a40d9eb1f9d6a864a70c8a79e4a864b49b0f12981889f0d0fa72ecfaed160
[INFO] running `Command { std: "docker" "start" "-a" "680a40d9eb1f9d6a864a70c8a79e4a864b49b0f12981889f0d0fa72ecfaed160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "680a40d9eb1f9d6a864a70c8a79e4a864b49b0f12981889f0d0fa72ecfaed160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "680a40d9eb1f9d6a864a70c8a79e4a864b49b0f12981889f0d0fa72ecfaed160", kill_on_drop: false }`
[INFO] [stdout] 680a40d9eb1f9d6a864a70c8a79e4a864b49b0f12981889f0d0fa72ecfaed160
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d71173ef00a9b76fd72785ce9e9f7307f83dfc191414eae8a3ab3b046076c574
[INFO] running `Command { std: "docker" "start" "-a" "d71173ef00a9b76fd72785ce9e9f7307f83dfc191414eae8a3ab3b046076c574", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking core2 v0.3.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking codecs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utf16.rs:48:24
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utf16.rs:54:25
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/utf16.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/utf16.rs:70:24
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:129:35
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn decode_utf16_le_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:133:31
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn decode_utf16_be(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:137:35
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn decode_utf16_be_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:165:35
[INFO] [stdout]     |
[INFO] [stdout] 165 |     fn decode_utf16_le_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn decode_utf16_be(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:173:35
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn decode_utf16_be_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reader` is never read
[INFO] [stdout]   --> src/utf16.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Utf16Reader<R: io::Read> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 43 |     // mode: Utf16,
[INFO] [stdout] 44 |     reader: R,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utf16.rs:48:24
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utf16.rs:54:25
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/utf16.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/utf16.rs:70:24
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:129:35
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn decode_utf16_le_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:133:31
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn decode_utf16_be(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:137:35
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn decode_utf16_be_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:165:35
[INFO] [stdout]     |
[INFO] [stdout] 165 |     fn decode_utf16_le_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn decode_utf16_be(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/utf16.rs:173:35
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn decode_utf16_be_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reader` is never read
[INFO] [stdout]   --> src/utf16.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Utf16Reader<R: io::Read> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 43 |     // mode: Utf16,
[INFO] [stdout] 44 |     reader: R,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.24s
[INFO] running `Command { std: "docker" "inspect" "d71173ef00a9b76fd72785ce9e9f7307f83dfc191414eae8a3ab3b046076c574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d71173ef00a9b76fd72785ce9e9f7307f83dfc191414eae8a3ab3b046076c574", kill_on_drop: false }`
[INFO] [stdout] d71173ef00a9b76fd72785ce9e9f7307f83dfc191414eae8a3ab3b046076c574