[INFO] fetching crate stack-buf 0.1.6...
[INFO] testing stack-buf-0.1.6 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate stack-buf 0.1.6 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate stack-buf 0.1.6
[INFO] finished tweaking crates.io crate stack-buf 0.1.6
[INFO] tweaked toml for crates.io crate stack-buf 0.1.6 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stack-buf 0.1.6 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 619e2b8cc994cba6263f2ee097a97ae406818c4c29770feb8e0332a5f044982a
[INFO] running `Command { std: "docker" "start" "-a" "619e2b8cc994cba6263f2ee097a97ae406818c4c29770feb8e0332a5f044982a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "619e2b8cc994cba6263f2ee097a97ae406818c4c29770feb8e0332a5f044982a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "619e2b8cc994cba6263f2ee097a97ae406818c4c29770feb8e0332a5f044982a", kill_on_drop: false }`
[INFO] [stdout] 619e2b8cc994cba6263f2ee097a97ae406818c4c29770feb8e0332a5f044982a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c1eeb4a6259073c82a0e70c4e9a46826823debad6ad854a9391bc52b8a7e610
[INFO] running `Command { std: "docker" "start" "-a" "6c1eeb4a6259073c82a0e70c4e9a46826823debad6ad854a9391bc52b8a7e610", kill_on_drop: false }`
[INFO] [stderr]    Compiling stack-buf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vec.rs:540:21
[INFO] [stdout]     |
[INFO] [stdout] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<T, N>
[INFO] [stdout]     |                     ^^^^^^^^^               ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<'_, T, N>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "6c1eeb4a6259073c82a0e70c4e9a46826823debad6ad854a9391bc52b8a7e610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1eeb4a6259073c82a0e70c4e9a46826823debad6ad854a9391bc52b8a7e610", kill_on_drop: false }`
[INFO] [stdout] 6c1eeb4a6259073c82a0e70c4e9a46826823debad6ad854a9391bc52b8a7e610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef507e3d8c8d10f0fb656e968791bfa2e4bf451bdffe205b4680a2ca6e5c871d
[INFO] running `Command { std: "docker" "start" "-a" "ef507e3d8c8d10f0fb656e968791bfa2e4bf451bdffe205b4680a2ca6e5c871d", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vec.rs:540:21
[INFO] [stdout]     |
[INFO] [stdout] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<T, N>
[INFO] [stdout]     |                     ^^^^^^^^^               ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<'_, T, N>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stack-buf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vec.rs:540:21
[INFO] [stdout]     |
[INFO] [stdout] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<T, N>
[INFO] [stdout]     |                     ^^^^^^^^^               ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<'_, T, N>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "ef507e3d8c8d10f0fb656e968791bfa2e4bf451bdffe205b4680a2ca6e5c871d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef507e3d8c8d10f0fb656e968791bfa2e4bf451bdffe205b4680a2ca6e5c871d", kill_on_drop: false }`
[INFO] [stdout] ef507e3d8c8d10f0fb656e968791bfa2e4bf451bdffe205b4680a2ca6e5c871d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86e0388ff84796fe4cb2c40fda4edeab52430347f8e17b4ba632ad073b09c963
[INFO] running `Command { std: "docker" "start" "-a" "86e0388ff84796fe4cb2c40fda4edeab52430347f8e17b4ba632ad073b09c963", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/vec.rs:540:21
[INFO] [stderr]     |
[INFO] [stderr] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<T, N>
[INFO] [stderr]     |                     ^^^^^^^^^               ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 540 |     pub fn drain<R>(&mut self, range: R) -> Drain<'_, T, N>
[INFO] [stderr]     |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: `stack-buf` (lib) generated 1 warning (run `cargo fix --lib -p stack-buf` to apply 1 suggestion)
[INFO] [stderr] warning: `stack-buf` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stack_buf-da4a032a1c93fc7e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stack_buf
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N> (line 1155) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N> (line 861) ... ok
[INFO] [stdout] test src/vec.rs - vec::&'amutStackVec<T,N> (line 1132) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::drain (line 531) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::is_full (line 204) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::from_elem (line 701) ... ok
[INFO] [stdout] test src/vec.rs - vec::&'aStackVec<T,N> (line 1111) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::capacity (line 221) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::clear (line 373) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::copy_from_slice (line 827) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::extend_from_slice (line 754) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::dedup_by (line 626) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::is_empty (line 188) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::insert (line 396) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::len (line 172) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::push_elem (line 722) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::dedup_by_key (line 673) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::pop (line 314) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::resize (line 788) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::remaining_capacity (line 236) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::push (line 294) ... ok
[INFO] [stdout] test src/vec.rs - vec::stack_vec (line 1324) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::remove (line 438) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::new (line 150) ... ok
[INFO] [stdout] test src/vec.rs - vec::stack_vec (line 1310) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::retain (line 591) ... ok
[INFO] [stdout] test src/vec.rs - vec::stack_vec (line 1340) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::swap_remove (line 481) ... ok
[INFO] [stdout] test src/vec.rs - vec::StackVec<T,N>::truncate (line 343) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "86e0388ff84796fe4cb2c40fda4edeab52430347f8e17b4ba632ad073b09c963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e0388ff84796fe4cb2c40fda4edeab52430347f8e17b4ba632ad073b09c963", kill_on_drop: false }`
[INFO] [stdout] 86e0388ff84796fe4cb2c40fda4edeab52430347f8e17b4ba632ad073b09c963