[INFO] crate tree-buf 0.6.0 is already in cache
[INFO] checking tree-buf-0.6.0 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate tree-buf 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tree-buf 0.6.0 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tree-buf 0.6.0
[INFO] finished tweaking crates.io crate tree-buf 0.6.0
[INFO] tweaked toml for crates.io crate tree-buf 0.6.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82fcf6aca5dad921ca20db37099da50374bcf1a4621a529ad714fbffa53900b5
[INFO] running `"docker" "start" "-a" "82fcf6aca5dad921ca20db37099da50374bcf1a4621a529ad714fbffa53900b5"`
[INFO] [stderr]     Checking simple-16 v0.1.0
[INFO] [stderr]    Compiling tree-buf-macros v0.6.0
[INFO] [stderr]     Checking tree-buf v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/internal/encodings/mod.rs:78:24
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn compress(&self, data: &[Self::Data], bytes: &mut Vec<u8>) -> Result<ArrayTypeId, ()> {
[INFO] [stderr]    |                        ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/internal/encodings/mod.rs:78:45
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn compress(&self, data: &[Self::Data], bytes: &mut Vec<u8>) -> Result<ArrayTypeId, ()> {
[INFO] [stderr]    |                                             ^^^^^ help: consider prefixing with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sticks`
[INFO] [stderr]  --> src/internal/rust_std/usize.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn new(sticks: DynArrayBranch<'_>) -> ReadResult<Self> {
[INFO] [stderr]   |            ^^^^^^ help: consider prefixing with an underscore: `_sticks`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/internal/encodings/mod.rs:78:24
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn compress(&self, data: &[Self::Data], bytes: &mut Vec<u8>) -> Result<ArrayTypeId, ()> {
[INFO] [stderr]    |                        ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/internal/encodings/mod.rs:78:45
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn compress(&self, data: &[Self::Data], bytes: &mut Vec<u8>) -> Result<ArrayTypeId, ()> {
[INFO] [stderr]    |                                             ^^^^^ help: consider prefixing with an underscore: `_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sticks`
[INFO] [stderr]  --> src/internal/rust_std/usize.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn new(sticks: DynArrayBranch<'_>) -> ReadResult<Self> {
[INFO] [stderr]   |            ^^^^^^ help: consider prefixing with an underscore: `_sticks`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `round_trip`
[INFO] [stderr]  --> tests/common/mod.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn round_trip<'a, 'b: 'a, T: Readable + Writable<'a> + Debug + PartialEq>(value: &'b T, size: usize) {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `round_trip_default`
[INFO] [stderr]   --> tests/common/mod.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn round_trip_default<T: for<'a> Default + Readable + for<'a> Writable<'a> + Debug + PartialEq>(size: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.03s
[INFO] running `"docker" "inspect" "82fcf6aca5dad921ca20db37099da50374bcf1a4621a529ad714fbffa53900b5"`
[INFO] running `"docker" "rm" "-f" "82fcf6aca5dad921ca20db37099da50374bcf1a4621a529ad714fbffa53900b5"`
[INFO] [stdout] 82fcf6aca5dad921ca20db37099da50374bcf1a4621a529ad714fbffa53900b5