[INFO] cloning repository https://github.com/ferrouswheel/superpixel-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ferrouswheel/superpixel-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrouswheel%2Fsuperpixel-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrouswheel%2Fsuperpixel-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 84e20c5c95e88022f935ef63dd0377152aa6276c [INFO] checking ferrouswheel/superpixel-rs against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrouswheel%2Fsuperpixel-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ferrouswheel/superpixel-rs on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ferrouswheel/superpixel-rs [INFO] finished tweaking git repo https://github.com/ferrouswheel/superpixel-rs [INFO] tweaked toml for git repo https://github.com/ferrouswheel/superpixel-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ferrouswheel/superpixel-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro2 v0.4.17 [INFO] [stderr] Downloaded deflate v0.7.14 [INFO] [stderr] Downloaded scoped_threadpool v0.1.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bb8950b5b6b1a0bc1f0b78ef58d80ae4388ad535e0729cc4c60a6b9dc130c62e [INFO] running `Command { std: "docker" "start" "-a" "bb8950b5b6b1a0bc1f0b78ef58d80ae4388ad535e0729cc4c60a6b9dc130c62e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb8950b5b6b1a0bc1f0b78ef58d80ae4388ad535e0729cc4c60a6b9dc130c62e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb8950b5b6b1a0bc1f0b78ef58d80ae4388ad535e0729cc4c60a6b9dc130c62e", kill_on_drop: false }` [INFO] [stdout] bb8950b5b6b1a0bc1f0b78ef58d80ae4388ad535e0729cc4c60a6b9dc130c62e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] be03cc522f150d21034ffd3c79c968e18bf97542056bc324b3bc042f5cb2fa20 [INFO] running `Command { std: "docker" "start" "-a" "be03cc522f150d21034ffd3c79c968e18bf97542056bc324b3bc042f5cb2fa20", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.17 [INFO] [stderr] Checking libc v0.2.28 [INFO] [stderr] Compiling rayon-core v1.2.1 [INFO] [stderr] Checking scopeguard v0.3.2 [INFO] [stderr] Checking num-traits v0.1.40 [INFO] [stderr] Compiling num-traits v0.2.5 [INFO] [stderr] Checking either v1.1.0 [INFO] [stderr] Checking byteorder v1.2.6 [INFO] [stderr] Checking futures v0.1.14 [INFO] [stderr] Checking coco v0.1.1 [INFO] [stderr] Checking lazy_static v0.2.8 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Checking color_quant v1.0.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking deflate v0.7.14 [INFO] [stderr] Checking num-integer v0.1.35 [INFO] [stderr] Checking rand v0.3.16 [INFO] [stderr] Checking num_cpus v1.6.2 [INFO] [stderr] Checking inflate v0.4.3 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking num-iter v0.1.34 [INFO] [stderr] Checking num-rational v0.1.39 [INFO] [stderr] Checking gif v0.10.0 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Checking scoped_threadpool v0.1.7 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Checking rayon v0.8.2 [INFO] [stderr] Checking jpeg-decoder v0.1.13 [INFO] [stderr] Compiling num-derive v0.2.2 [INFO] [stderr] Checking image v0.19.0 [INFO] [stderr] Checking superpixel v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:480:17 [INFO] [stdout] | [INFO] [stdout] 480 | ((y - 1) * width + x) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 480 - ((y - 1) * width + x) [INFO] [stdout] 480 + (y - 1) * width + x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:487:17 [INFO] [stdout] | [INFO] [stdout] 487 | (y * width + (x - 1)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 487 - (y * width + (x - 1)) [INFO] [stdout] 487 + y * width + (x - 1) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:480:17 [INFO] [stdout] | [INFO] [stdout] 480 | ((y - 1) * width + x) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 480 - ((y - 1) * width + x) [INFO] [stdout] 480 + (y - 1) * width + x [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/lib.rs:487:17 [INFO] [stdout] | [INFO] [stdout] 487 | (y * width + (x - 1)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 487 - (y * width + (x - 1)) [INFO] [stdout] 487 + y * width + (x - 1) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:326:17 [INFO] [stdout] | [INFO] [stdout] 326 | let mut c = &mut seeds_vec[k]; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:326:17 [INFO] [stdout] | [INFO] [stdout] 326 | let mut c = &mut seeds_vec[k]; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `idx` [INFO] [stdout] --> src/lib.rs:451:17 [INFO] [stdout] | [INFO] [stdout] 451 | let idx = y * width + x; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_idx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `klabels` [INFO] [stdout] --> src/lib.rs:438:5 [INFO] [stdout] | [INFO] [stdout] 438 | klabels: &Vec, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `outline_color` [INFO] [stdout] --> src/lib.rs:440:5 [INFO] [stdout] | [INFO] [stdout] 440 | outline_color: &image::Rgb [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `idx` [INFO] [stdout] --> src/lib.rs:451:17 [INFO] [stdout] | [INFO] [stdout] 451 | let idx = y * width + x; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_idx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `klabels` [INFO] [stdout] --> src/lib.rs:438:5 [INFO] [stdout] | [INFO] [stdout] 438 | klabels: &Vec, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `outline_color` [INFO] [stdout] --> src/lib.rs:440:5 [INFO] [stdout] | [INFO] [stdout] 440 | outline_color: &image::Rgb [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:578:32 [INFO] [stdout] | [INFO] [stdout] 578 | assert!(diff < 0.0001, format!("{} and {} are not within 0.0001", a, b)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 578 - assert!(diff < 0.0001, format!("{} and {} are not within 0.0001", a, b)); [INFO] [stdout] 578 + assert!(diff < 0.0001, "{} and {} are not within 0.0001", a, b); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.78s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24, syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "be03cc522f150d21034ffd3c79c968e18bf97542056bc324b3bc042f5cb2fa20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be03cc522f150d21034ffd3c79c968e18bf97542056bc324b3bc042f5cb2fa20", kill_on_drop: false }` [INFO] [stdout] be03cc522f150d21034ffd3c79c968e18bf97542056bc324b3bc042f5cb2fa20 [INFO] checking ferrouswheel/superpixel-rs against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrouswheel%2Fsuperpixel-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ferrouswheel/superpixel-rs on toolchain aa7c6ba69acce8b10a275eabfe6157ea72c8b599 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ferrouswheel/superpixel-rs [INFO] finished tweaking git repo https://github.com/ferrouswheel/superpixel-rs [INFO] tweaked toml for git repo https://github.com/ferrouswheel/superpixel-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ferrouswheel/superpixel-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd5d9fea5052c36c38c3bcb360fab5f3cc8c46800ece0f56d2cb4e3ca6674076 [INFO] running `Command { std: "docker" "start" "-a" "cd5d9fea5052c36c38c3bcb360fab5f3cc8c46800ece0f56d2cb4e3ca6674076", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd5d9fea5052c36c38c3bcb360fab5f3cc8c46800ece0f56d2cb4e3ca6674076", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd5d9fea5052c36c38c3bcb360fab5f3cc8c46800ece0f56d2cb4e3ca6674076", kill_on_drop: false }` [INFO] [stdout] cd5d9fea5052c36c38c3bcb360fab5f3cc8c46800ece0f56d2cb4e3ca6674076 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ef83a9bf8ca031c6012f506a79a1329bc196bd4e48ea55fae969a7a5ffdc671 [INFO] running `Command { std: "docker" "start" "-a" "1ef83a9bf8ca031c6012f506a79a1329bc196bd4e48ea55fae969a7a5ffdc671", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.28 [INFO] [stderr] Compiling proc-macro2 v0.4.17 [INFO] [stderr] Checking scopeguard v0.3.2 [INFO] [stderr] Compiling num-traits v0.2.5 [INFO] [stderr] Checking num-traits v0.1.40 [INFO] [stderr] Checking either v1.1.0 [INFO] [stderr] Compiling rayon-core v1.2.1 [INFO] [stderr] Checking lazy_static v0.2.8 [INFO] [stderr] Checking byteorder v1.2.6 [INFO] [stderr] Checking futures v0.1.14 [INFO] [stderr] Checking coco v0.1.1 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking deflate v0.7.14 [INFO] [stderr] Checking inflate v0.4.3 [INFO] [stderr] Checking color_quant v1.0.0 [INFO] [stderr] Checking num_cpus v1.6.2 [INFO] [stderr] Checking num-integer v0.1.35 [INFO] [stderr] Checking rand v0.3.16 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking num-iter v0.1.34 [INFO] [stderr] Checking num-rational v0.1.39 [INFO] [stderr] Checking gif v0.10.0 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Checking scoped_threadpool v0.1.7 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/aa7c6ba69acce8b10a275eabfe6157ea72c8b599/library/alloc/src/borrow.rs:180:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rayon v0.8.2 [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "1ef83a9bf8ca031c6012f506a79a1329bc196bd4e48ea55fae969a7a5ffdc671", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ef83a9bf8ca031c6012f506a79a1329bc196bd4e48ea55fae969a7a5ffdc671", kill_on_drop: false }` [INFO] [stdout] 1ef83a9bf8ca031c6012f506a79a1329bc196bd4e48ea55fae969a7a5ffdc671