[INFO] crate str_stack 0.1.0 is already in cache
[INFO] checking str_stack-0.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate str_stack 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate str_stack 0.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate str_stack 0.1.0
[INFO] finished tweaking crates.io crate str_stack 0.1.0
[INFO] tweaked toml for crates.io crate str_stack 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 7c612665489f0aa40276ff882448da3aafa0f8650ff9f9168cc2be6be35f3d0e
[INFO] running `"docker" "start" "-a" "7c612665489f0aa40276ff882448da3aafa0f8650ff9f9168cc2be6be35f3d0e"`
[INFO] [stderr]     Checking str_stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::slice_unchecked': use `get_unchecked(begin..end)` instead
[INFO] [stderr]   --> src/lib.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 Some(self.data.slice_unchecked(start, end))
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::slice_unchecked': use `get_unchecked(begin..end)` instead
[INFO] [stderr]   --> src/lib.rs:99:32
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 Some(self.data.slice_unchecked(start, end))
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::slice_unchecked': use `get_unchecked(begin..end)` instead
[INFO] [stderr]    --> src/lib.rs:251:19
[INFO] [stderr]     |
[INFO] [stderr] 251 |         self.data.slice_unchecked(start, end)
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/lib.rs:21:21
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::io::{self, Read};
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::slice_unchecked': use `get_unchecked(begin..end)` instead
[INFO] [stderr]   --> src/lib.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 Some(self.data.slice_unchecked(start, end))
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::slice_unchecked': use `get_unchecked(begin..end)` instead
[INFO] [stderr]   --> src/lib.rs:99:32
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 Some(self.data.slice_unchecked(start, end))
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::slice_unchecked': use `get_unchecked(begin..end)` instead
[INFO] [stderr]    --> src/lib.rs:251:19
[INFO] [stderr]     |
[INFO] [stderr] 251 |         self.data.slice_unchecked(start, end)
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/lib.rs:21:21
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::io::{self, Read};
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Write`
[INFO] [stderr]  --> benches/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "7c612665489f0aa40276ff882448da3aafa0f8650ff9f9168cc2be6be35f3d0e"`
[INFO] running `"docker" "rm" "-f" "7c612665489f0aa40276ff882448da3aafa0f8650ff9f9168cc2be6be35f3d0e"`
[INFO] [stdout] 7c612665489f0aa40276ff882448da3aafa0f8650ff9f9168cc2be6be35f3d0e