[INFO] fetching crate stream_buffer 0.2.0...
[INFO] checking stream_buffer-0.2.0 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate stream_buffer 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stream_buffer 0.2.0 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stream_buffer 0.2.0
[INFO] finished tweaking crates.io crate stream_buffer 0.2.0
[INFO] tweaked toml for crates.io crate stream_buffer 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate stream_buffer 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7fa601515fa544b0ec86742dcf82bd0646338991bb7fa104b8a655f36878869
[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" "b7fa601515fa544b0ec86742dcf82bd0646338991bb7fa104b8a655f36878869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7fa601515fa544b0ec86742dcf82bd0646338991bb7fa104b8a655f36878869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7fa601515fa544b0ec86742dcf82bd0646338991bb7fa104b8a655f36878869", kill_on_drop: false }`
[INFO] [stdout] b7fa601515fa544b0ec86742dcf82bd0646338991bb7fa104b8a655f36878869
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f36d6cc39cbce2db158ec05ec40cff4fd179923a44b98652491c6801bcda3c1
[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" "5f36d6cc39cbce2db158ec05ec40cff4fd179923a44b98652491c6801bcda3c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking stream_buffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::BufWriter`
[INFO] [stdout]  --> src/buf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::BufWriter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Into`, `TryInto`
[INFO] [stdout]  --> src/chunk.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::{TryInto, Into};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `self`
[INFO] [stdout]   --> src/lib.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use std::io::{self, BufRead};
[INFO] [stdout]    |                   ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufWriter`
[INFO] [stdout]  --> src/buf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::BufWriter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Into`, `TryInto`
[INFO] [stdout]  --> src/chunk.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::{TryInto, Into};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/lib.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use itertools::Itertools;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamBuffer2`
[INFO] [stdout]   --> src/lib.rs:24:36
[INFO] [stdout]    |
[INFO] [stdout] 24 |     use super::buf::{StreamBuffer, StreamBuffer2, ByteStreamBuf, BufferRead, BufferCreate};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoStream`
[INFO] [stdout]  --> src/chunk.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::types::{FileLike, BufResult,IntoStream, IterStream};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/chunk.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, SeekFrom};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/types.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for item in items {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StreamBuffer3`
[INFO] [stdout]   --> src/buf.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct StreamBuffer3<T, F> 
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/buf.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn new(stream: T, size: usize) -> StreamBuffer2<T, S, SpooledTempFile> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]   --> src/types.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn test<T: IntoStream<u8>>(items: T) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoStream`
[INFO] [stdout]  --> src/chunk.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::types::{FileLike, BufResult,IntoStream, IterStream};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/chunk.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, SeekFrom};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/types.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     for item in items {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StreamBuffer3`
[INFO] [stdout]   --> src/buf.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct StreamBuffer3<T, F> 
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/buf.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn new(stream: T, size: usize) -> StreamBuffer2<T, S, SpooledTempFile> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]   --> src/types.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn test<T: IntoStream<u8>>(items: T) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 6.92s
[INFO] running `Command { std: "docker" "inspect" "5f36d6cc39cbce2db158ec05ec40cff4fd179923a44b98652491c6801bcda3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f36d6cc39cbce2db158ec05ec40cff4fd179923a44b98652491c6801bcda3c1", kill_on_drop: false }`
[INFO] [stdout] 5f36d6cc39cbce2db158ec05ec40cff4fd179923a44b98652491c6801bcda3c1
