[INFO] fetching crate bincode_core 0.6.0...
[INFO] checking bincode_core-0.6.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bincode_core 0.6.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate bincode_core 0.6.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bincode_core 0.6.0
[INFO] finished tweaking crates.io crate bincode_core 0.6.0
[INFO] tweaked toml for crates.io crate bincode_core 0.6.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.0.3
[INFO] [stderr]   Downloaded serde_codegen v0.8.14
[INFO] [stderr]   Downloaded serde_codegen_internals v0.10.0
[INFO] [stderr]   Downloaded syn v0.9.2
[INFO] [stderr]   Downloaded byteorder_core_io v0.5.3
[INFO] [stderr]   Downloaded serde_derive v0.8.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86c5d55d7c2a2b2e281000e5efa68f6ec969b09ba7a74d1438703cc068a83ebe
[INFO] running `Command { std: "docker" "start" "-a" "86c5d55d7c2a2b2e281000e5efa68f6ec969b09ba7a74d1438703cc068a83ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86c5d55d7c2a2b2e281000e5efa68f6ec969b09ba7a74d1438703cc068a83ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c5d55d7c2a2b2e281000e5efa68f6ec969b09ba7a74d1438703cc068a83ebe", kill_on_drop: false }`
[INFO] [stdout] 86c5d55d7c2a2b2e281000e5efa68f6ec969b09ba7a74d1438703cc068a83ebe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9824fb15eed37c1a4d52736e7149c563f8d99082cc0bb085f87b83d1d0b8331e
[INFO] running `Command { std: "docker" "start" "-a" "9824fb15eed37c1a4d52736e7149c563f8d99082cc0bb085f87b83d1d0b8331e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:77
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                                                             ^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: plugins are no longer supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | extern crate collections;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::arc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/de/impls.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | use alloc::arc::Arc;
[INFO] [stdout]    |            ^^^ could not find `arc` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/de/impls.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 | use core::nonzero::{NonZero, Zeroable};
[INFO] [stdout]    |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::num::Zero`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/de/impls.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | use core::num::Zero;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ no `Zero` in `num`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items instead
[INFO] [stdout]    |
[INFO] [stdout] 63 | use core::num::FpCategory::Zero;
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 63 | use core::num::IntErrorKind::Zero;
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::arc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/ser/impls.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | use alloc::arc::Arc;
[INFO] [stdout]    |            ^^^ could not find `arc` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/ser/impls.rs:67:11
[INFO] [stdout]    |
[INFO] [stdout] 67 | use core::nonzero::{NonZero, Zeroable};
[INFO] [stdout]    |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stdout] error[E0405]: cannot find trait `One` in module `num`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/ser/impls.rs:287:52
[INFO] [stdout]     |
[INFO] [stdout] 287 |     where A: Serialize + Clone + iter::Step + num::One,
[INFO] [stdout]     |                                                    ^^^ not found in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Reflect` in module `core::marker`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/error.rs:8:52
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Error: Debug + Display + ::core::marker::Reflect {
[INFO] [stdout]   |                                                    ^^^^^^^ not found in `core::marker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling core_io v0.1.20210325
[INFO] [stdout] error[E0635]: unknown feature `reflect_marker`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:43
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `unicode`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `enumset`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![cfg_attr(feature = "collections", feature(collections, enumset))]
[INFO] [stdout]    |                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:16:46
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![cfg_attr(feature = "collections", feature(collections, enumset))]
[INFO] [stdout]    |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `zero_one`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:97
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                                                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0432, E0463, E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde` (lib) due to 15 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9824fb15eed37c1a4d52736e7149c563f8d99082cc0bb085f87b83d1d0b8331e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9824fb15eed37c1a4d52736e7149c563f8d99082cc0bb085f87b83d1d0b8331e", kill_on_drop: false }`
[INFO] [stdout] 9824fb15eed37c1a4d52736e7149c563f8d99082cc0bb085f87b83d1d0b8331e
[INFO] checking bincode_core-0.6.0 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate bincode_core 0.6.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate bincode_core 0.6.0 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bincode_core 0.6.0
[INFO] finished tweaking crates.io crate bincode_core 0.6.0
[INFO] tweaked toml for crates.io crate bincode_core 0.6.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a667405608e997fda2d9f0263afbfdb913dcb499e13e8b1c61ba2ac0e45141cf
[INFO] running `Command { std: "docker" "start" "-a" "a667405608e997fda2d9f0263afbfdb913dcb499e13e8b1c61ba2ac0e45141cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a667405608e997fda2d9f0263afbfdb913dcb499e13e8b1c61ba2ac0e45141cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a667405608e997fda2d9f0263afbfdb913dcb499e13e8b1c61ba2ac0e45141cf", kill_on_drop: false }`
[INFO] [stdout] a667405608e997fda2d9f0263afbfdb913dcb499e13e8b1c61ba2ac0e45141cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9d2e74b149ca39f343082342dde6a2bc6bd34785731dd8f1422b999dc9ff0cd
[INFO] running `Command { std: "docker" "start" "-a" "b9d2e74b149ca39f343082342dde6a2bc6bd34785731dd8f1422b999dc9ff0cd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:77
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                                                             ^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: plugins are no longer supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | extern crate collections;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stdout] error[E0432]: unresolved import `alloc::arc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/de/impls.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | use alloc::arc::Arc;
[INFO] [stdout]    |            ^^^ could not find `arc` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/de/impls.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 | use core::nonzero::{NonZero, Zeroable};
[INFO] [stdout]    |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::num::Zero`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/de/impls.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | use core::num::Zero;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ no `Zero` in `num`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items instead
[INFO] [stdout]    |
[INFO] [stdout] 63 | use core::num::FpCategory::Zero;
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 63 | use core::num::IntErrorKind::Zero;
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::arc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/ser/impls.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | use alloc::arc::Arc;
[INFO] [stdout]    |            ^^^ could not find `arc` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::nonzero`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/ser/impls.rs:67:11
[INFO] [stdout]    |
[INFO] [stdout] 67 | use core::nonzero::{NonZero, Zeroable};
[INFO] [stdout]    |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `One` in module `num`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/ser/impls.rs:287:52
[INFO] [stdout]     |
[INFO] [stdout] 287 |     where A: Serialize + Clone + iter::Step + num::One,
[INFO] [stdout]     |                                                    ^^^ not found in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Reflect` in module `core::marker`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/error.rs:8:52
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Error: Debug + Display + ::core::marker::Reflect {
[INFO] [stdout]   |                                                    ^^^^^^^ not found in `core::marker`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling core_io v0.1.20210325
[INFO] [stdout] error[E0635]: unknown feature `reflect_marker`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:43
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `unicode`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `enumset`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![cfg_attr(feature = "collections", feature(collections, enumset))]
[INFO] [stdout]    |                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:16:46
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![cfg_attr(feature = "collections", feature(collections, enumset))]
[INFO] [stdout]    |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `zero_one`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde-0.8.23/src/lib.rs:14:97
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(feature = "unstable", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
[INFO] [stdout]    |                                                                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0432, E0463, E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde` (lib) due to 15 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b9d2e74b149ca39f343082342dde6a2bc6bd34785731dd8f1422b999dc9ff0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d2e74b149ca39f343082342dde6a2bc6bd34785731dd8f1422b999dc9ff0cd", kill_on_drop: false }`
[INFO] [stdout] b9d2e74b149ca39f343082342dde6a2bc6bd34785731dd8f1422b999dc9ff0cd
