[INFO] fetching crate codecs 0.0.1...
[INFO] testing codecs-0.0.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate codecs 0.0.1 into /workspace/builds/worker-106/source
[INFO] validating manifest of crates.io crate codecs 0.0.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-106/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c069ee0d15549cc5e9cff21ea698612015f1f1ef7e83b6e594cb38265665463
[INFO] running `Command { std: "docker" "start" "-a" "7c069ee0d15549cc5e9cff21ea698612015f1f1ef7e83b6e594cb38265665463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c069ee0d15549cc5e9cff21ea698612015f1f1ef7e83b6e594cb38265665463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c069ee0d15549cc5e9cff21ea698612015f1f1ef7e83b6e594cb38265665463", kill_on_drop: false }`
[INFO] [stdout] 7c069ee0d15549cc5e9cff21ea698612015f1f1ef7e83b6e594cb38265665463
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f711fd167451ba2b4dd6a3fc51ec5d147701a7675acf94b517abaf7d230a415a
[INFO] running `Command { std: "docker" "start" "-a" "f711fd167451ba2b4dd6a3fc51ec5d147701a7675acf94b517abaf7d230a415a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling core2 v0.3.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling 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 is never read: `reader`
[INFO] [stdout]   --> src/utf16.rs:44:5
[INFO] [stdout]    |
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.54s
[INFO] running `Command { std: "docker" "inspect" "f711fd167451ba2b4dd6a3fc51ec5d147701a7675acf94b517abaf7d230a415a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f711fd167451ba2b4dd6a3fc51ec5d147701a7675acf94b517abaf7d230a415a", kill_on_drop: false }`
[INFO] [stdout] f711fd167451ba2b4dd6a3fc51ec5d147701a7675acf94b517abaf7d230a415a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad290bc44418d38aafe31946a55f2da631589e86659abb907abb3880250a5065
[INFO] running `Command { std: "docker" "start" "-a" "ad290bc44418d38aafe31946a55f2da631589e86659abb907abb3880250a5065", kill_on_drop: false }`
[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 is never read: `reader`
[INFO] [stdout]   --> src/utf16.rs:44:5
[INFO] [stdout]    |
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling 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 is never read: `reader`
[INFO] [stdout]   --> src/utf16.rs:44:5
[INFO] [stdout]    |
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "ad290bc44418d38aafe31946a55f2da631589e86659abb907abb3880250a5065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad290bc44418d38aafe31946a55f2da631589e86659abb907abb3880250a5065", kill_on_drop: false }`
[INFO] [stdout] ad290bc44418d38aafe31946a55f2da631589e86659abb907abb3880250a5065
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 337aa09912817cd3c1e4e819986d4784cd04a877e8bf6484f5fd939b173d926e
[INFO] running `Command { std: "docker" "start" "-a" "337aa09912817cd3c1e4e819986d4784cd04a877e8bf6484f5fd939b173d926e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/utf16.rs:48:24
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/utf16.rs:54:25
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
[INFO] [stderr]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/utf16.rs:64:24
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/utf16.rs:70:24
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn seek(&mut self, pos: io::SeekFrom) -> io::Result<u64> {
[INFO] [stderr]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/utf16.rs:129:35
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn decode_utf16_le_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stderr]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/utf16.rs:133:31
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn decode_utf16_be(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stderr]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/utf16.rs:137:35
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn decode_utf16_be_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stderr]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/utf16.rs:165:35
[INFO] [stderr]     |
[INFO] [stderr] 165 |     fn decode_utf16_le_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stderr]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/utf16.rs:169:31
[INFO] [stderr]     |
[INFO] [stderr] 169 |     fn decode_utf16_be(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stderr]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/utf16.rs:173:35
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn decode_utf16_be_bom(&self, input: &[u8]) -> Result<String, Self::Error> {
[INFO] [stderr]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reader`
[INFO] [stderr]   --> src/utf16.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     reader: R,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `codecs` (lib) generated 11 warnings
[INFO] [stderr] warning: `codecs` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/codecs-cf543e8833ff98df)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests codecs
[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] [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" "337aa09912817cd3c1e4e819986d4784cd04a877e8bf6484f5fd939b173d926e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "337aa09912817cd3c1e4e819986d4784cd04a877e8bf6484f5fd939b173d926e", kill_on_drop: false }`
[INFO] [stdout] 337aa09912817cd3c1e4e819986d4784cd04a877e8bf6484f5fd939b173d926e