[INFO] fetching crate colors-transform 0.2.11...
[INFO] checking colors-transform-0.2.11 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate colors-transform 0.2.11 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate colors-transform 0.2.11 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate colors-transform 0.2.11
[INFO] finished tweaking crates.io crate colors-transform 0.2.11
[INFO] tweaked toml for crates.io crate colors-transform 0.2.11 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", 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] fdcde7b8a67adc9d50bed7cb38174520ed5e90983d656f59a2f1d3d7e0a82a9f
[INFO] running `Command { std: "docker" "start" "-a" "fdcde7b8a67adc9d50bed7cb38174520ed5e90983d656f59a2f1d3d7e0a82a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdcde7b8a67adc9d50bed7cb38174520ed5e90983d656f59a2f1d3d7e0a82a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdcde7b8a67adc9d50bed7cb38174520ed5e90983d656f59a2f1d3d7e0a82a9f", kill_on_drop: false }`
[INFO] [stdout] fdcde7b8a67adc9d50bed7cb38174520ed5e90983d656f59a2f1d3d7e0a82a9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c97256c7342f6cb57118eb90931e0afb83ece4723c3732114726ecd85a03371a
[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" "c97256c7342f6cb57118eb90931e0afb83ece4723c3732114726ecd85a03371a", kill_on_drop: false }`
[INFO] [stderr]     Checking colors-transform v0.2.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `round_ratio`
[INFO] [stdout]    --> src/converters.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn round_ratio(r: f32) -> f32 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_rgba_parse_err`
[INFO] [stdout]   --> src/error.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn make_rgba_parse_err(str_in: &str) -> ParseError {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_hsla_parse_err`
[INFO] [stdout]   --> src/error.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn make_hsla_parse_err(str_in: &str) -> ParseError {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_color_tuple_a`
[INFO] [stdout]   --> src/from_str.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn parse_color_tuple_a(s: &str) -> Result<ColorTupleA, ParseError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rgba`
[INFO] [stdout]   --> src/from_str.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn rgba(s: &str) -> Result<ColorTupleA, ParseError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hsla`
[INFO] [stdout]   --> src/from_str.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn hsla(s: &str) -> Result<ColorTupleA, ParseError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `round_ratio`
[INFO] [stdout]    --> src/converters.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn round_ratio(r: f32) -> f32 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_rgba_parse_err`
[INFO] [stdout]   --> src/error.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn make_rgba_parse_err(str_in: &str) -> ParseError {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_hsla_parse_err`
[INFO] [stdout]   --> src/error.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn make_hsla_parse_err(str_in: &str) -> ParseError {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_color_tuple_a`
[INFO] [stdout]   --> src/from_str.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn parse_color_tuple_a(s: &str) -> Result<ColorTupleA, ParseError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rgba`
[INFO] [stdout]   --> src/from_str.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn rgba(s: &str) -> Result<ColorTupleA, ParseError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hsla`
[INFO] [stdout]   --> src/from_str.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn hsla(s: &str) -> Result<ColorTupleA, ParseError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "c97256c7342f6cb57118eb90931e0afb83ece4723c3732114726ecd85a03371a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c97256c7342f6cb57118eb90931e0afb83ece4723c3732114726ecd85a03371a", kill_on_drop: false }`
[INFO] [stdout] c97256c7342f6cb57118eb90931e0afb83ece4723c3732114726ecd85a03371a