[INFO] fetching crate b3-rs 0.1.0...
[INFO] checking b3-rs-0.1.0 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate b3-rs 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate b3-rs 0.1.0 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b3-rs 0.1.0
[INFO] finished tweaking crates.io crate b3-rs 0.1.0
[INFO] tweaked toml for crates.io crate b3-rs 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteio v0.2.3
[INFO] [stderr]   Downloaded nano-leb128 v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7687bcc378d04d6af1c5973702a3473e8ebb89c3df1a9b0941896224ab1af57
[INFO] running `Command { std: "docker" "start" "-a" "d7687bcc378d04d6af1c5973702a3473e8ebb89c3df1a9b0941896224ab1af57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7687bcc378d04d6af1c5973702a3473e8ebb89c3df1a9b0941896224ab1af57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7687bcc378d04d6af1c5973702a3473e8ebb89c3df1a9b0941896224ab1af57", kill_on_drop: false }`
[INFO] [stdout] d7687bcc378d04d6af1c5973702a3473e8ebb89c3df1a9b0941896224ab1af57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3bb7431f8931400ee218c113e6be3981b855657ecad52ead595f75df6d98b87
[INFO] running `Command { std: "docker" "start" "-a" "e3bb7431f8931400ee218c113e6be3981b855657ecad52ead595f75df6d98b87", kill_on_drop: false }`
[INFO] [stderr]     Checking byteio v0.2.3
[INFO] [stderr]     Checking nano-leb128 v0.1.0
[INFO] [stderr]     Checking b3-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `alloc_prelude`
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(alloc_prelude)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `b3-rs` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0635]: unknown feature `alloc_prelude`
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(alloc_prelude)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `b3-rs` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e3bb7431f8931400ee218c113e6be3981b855657ecad52ead595f75df6d98b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3bb7431f8931400ee218c113e6be3981b855657ecad52ead595f75df6d98b87", kill_on_drop: false }`
[INFO] [stdout] e3bb7431f8931400ee218c113e6be3981b855657ecad52ead595f75df6d98b87
[INFO] checking b3-rs-0.1.0 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate b3-rs 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate b3-rs 0.1.0 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b3-rs 0.1.0
[INFO] finished tweaking crates.io crate b3-rs 0.1.0
[INFO] tweaked toml for crates.io crate b3-rs 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cba51315c80e605cdc4cd730191c544b5047844c3f0d5b0a5074313d411022e4
[INFO] running `Command { std: "docker" "start" "-a" "cba51315c80e605cdc4cd730191c544b5047844c3f0d5b0a5074313d411022e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cba51315c80e605cdc4cd730191c544b5047844c3f0d5b0a5074313d411022e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cba51315c80e605cdc4cd730191c544b5047844c3f0d5b0a5074313d411022e4", kill_on_drop: false }`
[INFO] [stdout] cba51315c80e605cdc4cd730191c544b5047844c3f0d5b0a5074313d411022e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d8fbad64fd9d26f73091f95d2d0cf64a596ea37a2f36e0d96d6c7ce15d41cd5
[INFO] running `Command { std: "docker" "start" "-a" "5d8fbad64fd9d26f73091f95d2d0cf64a596ea37a2f36e0d96d6c7ce15d41cd5", kill_on_drop: false }`
[INFO] [stderr]     Checking byteio v0.2.3
[INFO] [stderr]     Checking nano-leb128 v0.1.0
[INFO] [stderr]     Checking b3-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/datatypes.rs:163:39
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/datatypes.rs:168:39
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/key.rs:63:39
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/key.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/key.rs:77:39
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/datatypes.rs:163:39
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/key.rs:104:58
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 let s = String::from_utf8(Vec::from(&ext[len..total]))?;
[INFO] [stdout]     |                                                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/datatypes.rs:168:39
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/key.rs:114:40
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 let b = Vec::from(&ext[len..total]);
[INFO] [stdout]     |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/key.rs:63:39
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/key.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/key.rs:77:39
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 out.extend(&len_bytes[0..count]);
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/key.rs:104:58
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 let s = String::from_utf8(Vec::from(&ext[len..total]))?;
[INFO] [stdout]     |                                                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/key.rs:114:40
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 let b = Vec::from(&ext[len..total]);
[INFO] [stdout]     |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:133:33
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 out.extend(&tmp[0..count]);
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:140:33
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 out.extend(&tmp[0..count]);
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/value.rs:187:67
[INFO] [stdout]     |
[INFO] [stdout] 187 |                         let (itm, itm_count) = Item::decode(&data[count..])?;
[INFO] [stdout]     |                                                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/value.rs:202:67
[INFO] [stdout]     |
[INFO] [stdout] 202 |                         let (itm, itm_count) = Item::decode(&data[count..])?;
[INFO] [stdout]     |                                                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:258:49
[INFO] [stdout]     |
[INFO] [stdout] 258 |                         i64::from_le_bytes(data[0..8].try_into().expect("failed to get [u8; 8]"));
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:265:63
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let (val, len) = ULEB128::read_from(&data[0..data_len])?;
[INFO] [stdout]     |                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:272:63
[INFO] [stdout]     |
[INFO] [stdout] 272 |                     let (val, len) = SLEB128::read_from(&data[0..data_len])?;
[INFO] [stdout]     |                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:288:49
[INFO] [stdout]     |
[INFO] [stdout] 288 |                         f64::from_le_bytes(data[0..8].try_into().expect("failed to get [u8; 8]"));
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/header.rs:92:35
[INFO] [stdout]    |
[INFO] [stdout] 92 |             len_bytes.extend(&tmp[0..count]);
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/header.rs:141:56
[INFO] [stdout]     |
[INFO] [stdout] 141 |             let (val, len) = ULEB128::read_from(&input[count..])?;
[INFO] [stdout]     |                                                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/header.rs:156:65
[INFO] [stdout]     |
[INFO] [stdout] 156 |             let (d_key, len) = ItemKey::decode(key_base, &input[count..])?;
[INFO] [stdout]     |                                                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/header.rs:164:56
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let (val, len) = ULEB128::read_from(&input[count..])?;
[INFO] [stdout]     |                                                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> src/item.rs:75:58
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let (hdr, hdr_count) = ItemHeader::decode(&input[count..])?;
[INFO] [stdout]    |                                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> src/item.rs:79:63
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let (val, val_count) = ItemValue::decode(&hdr, &input[count..])?;
[INFO] [stdout]    |                                                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `alloc_prelude`
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(alloc_prelude)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:133:33
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 out.extend(&tmp[0..count]);
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:140:33
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 out.extend(&tmp[0..count]);
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/value.rs:187:67
[INFO] [stdout]     |
[INFO] [stdout] 187 |                         let (itm, itm_count) = Item::decode(&data[count..])?;
[INFO] [stdout]     |                                                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/value.rs:202:67
[INFO] [stdout]     |
[INFO] [stdout] 202 |                         let (itm, itm_count) = Item::decode(&data[count..])?;
[INFO] [stdout]     |                                                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:258:49
[INFO] [stdout]     |
[INFO] [stdout] 258 |                         i64::from_le_bytes(data[0..8].try_into().expect("failed to get [u8; 8]"));
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:265:63
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     let (val, len) = ULEB128::read_from(&data[0..data_len])?;
[INFO] [stdout]     |                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:272:63
[INFO] [stdout]     |
[INFO] [stdout] 272 |                     let (val, len) = SLEB128::read_from(&data[0..data_len])?;
[INFO] [stdout]     |                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/value.rs:288:49
[INFO] [stdout]     |
[INFO] [stdout] 288 |                         f64::from_le_bytes(data[0..8].try_into().expect("failed to get [u8; 8]"));
[INFO] [stdout]     |                                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/header.rs:92:35
[INFO] [stdout]    |
[INFO] [stdout] 92 |             len_bytes.extend(&tmp[0..count]);
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/header.rs:141:56
[INFO] [stdout]     |
[INFO] [stdout] 141 |             let (val, len) = ULEB128::read_from(&input[count..])?;
[INFO] [stdout]     |                                                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/header.rs:156:65
[INFO] [stdout]     |
[INFO] [stdout] 156 |             let (d_key, len) = ItemKey::decode(key_base, &input[count..])?;
[INFO] [stdout]     |                                                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> src/header.rs:164:56
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let (val, len) = ULEB128::read_from(&input[count..])?;
[INFO] [stdout]     |                                                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> src/item.rs:75:58
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let (hdr, hdr_count) = ItemHeader::decode(&input[count..])?;
[INFO] [stdout]    |                                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> src/item.rs:79:63
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let (val, val_count) = ItemValue::decode(&hdr, &input[count..])?;
[INFO] [stdout]    |                                                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `alloc_prelude`
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(alloc_prelude)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `b3-rs` (lib) due to 2 previous errors; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `b3-rs` (lib test) due to 2 previous errors; 21 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5d8fbad64fd9d26f73091f95d2d0cf64a596ea37a2f36e0d96d6c7ce15d41cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d8fbad64fd9d26f73091f95d2d0cf64a596ea37a2f36e0d96d6c7ce15d41cd5", kill_on_drop: false }`
[INFO] [stdout] 5d8fbad64fd9d26f73091f95d2d0cf64a596ea37a2f36e0d96d6c7ce15d41cd5
