[INFO] fetching crate sentinel 0.5.4...
[INFO] testing sentinel-0.5.4 against 1.77.0 for beta-1.78-1
[INFO] extracting crate sentinel 0.5.4 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate sentinel 0.5.4 on toolchain 1.77.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.77.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sentinel 0.5.4
[INFO] finished tweaking crates.io crate sentinel 0.5.4
[INFO] tweaked toml for crates.io crate sentinel 0.5.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.77.0" "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" "+1.77.0" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.77.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f13834e43d03d07ccb71c47dc2f4fdb039f6365c71a57d0b6470da511dd7f2a6
[INFO] running `Command { std: "docker" "start" "-a" "f13834e43d03d07ccb71c47dc2f4fdb039f6365c71a57d0b6470da511dd7f2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f13834e43d03d07ccb71c47dc2f4fdb039f6365c71a57d0b6470da511dd7f2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13834e43d03d07ccb71c47dc2f4fdb039f6365c71a57d0b6470da511dd7f2a6", kill_on_drop: false }`
[INFO] [stdout] f13834e43d03d07ccb71c47dc2f4fdb039f6365c71a57d0b6470da511dd7f2a6
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.77.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13169b59df1f50b1546f6439fbcb890d80a0a77df4a26f5b50950464eda6c4e6
[INFO] running `Command { std: "docker" "start" "-a" "13169b59df1f50b1546f6439fbcb890d80a0a77df4a26f5b50950464eda6c4e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling sentinel v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "13169b59df1f50b1546f6439fbcb890d80a0a77df4a26f5b50950464eda6c4e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13169b59df1f50b1546f6439fbcb890d80a0a77df4a26f5b50950464eda6c4e6", kill_on_drop: false }`
[INFO] [stdout] 13169b59df1f50b1546f6439fbcb890d80a0a77df4a26f5b50950464eda6c4e6
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.77.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96c51ba5e10da2473cbc17962d6ac095447967437a9205d5610b545e478cd2d3
[INFO] running `Command { std: "docker" "start" "-a" "96c51ba5e10da2473cbc17962d6ac095447967437a9205d5610b545e478cd2d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling sentinel v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sbox.rs:642:25
[INFO] [stdout]     |
[INFO] [stdout] 642 |     struct PanicOnClone(bool);
[INFO] [stdout]     |            ------------ ^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 642 |     struct PanicOnClone(());
[INFO] [stdout]     |                         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "96c51ba5e10da2473cbc17962d6ac095447967437a9205d5610b545e478cd2d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96c51ba5e10da2473cbc17962d6ac095447967437a9205d5610b545e478cd2d3", kill_on_drop: false }`
[INFO] [stdout] 96c51ba5e10da2473cbc17962d6ac095447967437a9205d5610b545e478cd2d3
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.77.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7f3bc0711cbc48ac3e251d1e024afb465afe91452368c37c5632350c71ab2be
[INFO] running `Command { std: "docker" "start" "-a" "a7f3bc0711cbc48ac3e251d1e024afb465afe91452368c37c5632350c71ab2be", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/sbox.rs:642:25
[INFO] [stderr]     |
[INFO] [stderr] 642 |     struct PanicOnClone(bool);
[INFO] [stderr]     |            ------------ ^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 642 |     struct PanicOnClone(());
[INFO] [stderr]     |                         ~~
[INFO] [stderr] 
[INFO] [stderr] warning: `sentinel` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sentinel-f2c0970665d5aadb)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test as_slice ... ok
[INFO] [stdout] test cstr_macro_empty ... ok
[INFO] [stdout] test cstr_macro ... ok
[INFO] [stdout] test from_slice ... ok
[INFO] [stdout] test from_slice_none ... ok
[INFO] [stdout] test from_slice_split_end ... ok
[INFO] [stdout] test from_slice_split_middle ... ok
[INFO] [stdout] test from_slice_split_start ... ok
[INFO] [stdout] test from_slice_split_none ... ok
[INFO] [stdout] test len ... ok
[INFO] [stdout] test sbox::drop_count ... ok
[INFO] [stdout] test sbox::from_slice_no_sentinel ... ok
[INFO] [stdout] test sbox::from_slice_with_sentinel ... ok
[INFO] [stdout] test split_first ... ok
[INFO] [stdout] test sbox::clone_impl_panics ... ok
[INFO] [stdout] test sbox::drop_count_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sentinel
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test src/lib.rs - SSlice<T>::from_slice_mut (line 190) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::is_empty (line 320) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::from_slice_split (line 102) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::first (line 337) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::len (line 303) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::first_mut (line 358) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::from_slice (line 133) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::from_slice_split_mut (line 158) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::split_first_mut (line 405) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::split_first (line 384) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::iter_mut (line 256) ... ok
[INFO] [stdout] test src/lib.rs - SSlice<T>::iter (line 235) ... ok
[INFO] [stdout] test src/lib.rs - cstr (line 797) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7f3bc0711cbc48ac3e251d1e024afb465afe91452368c37c5632350c71ab2be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f3bc0711cbc48ac3e251d1e024afb465afe91452368c37c5632350c71ab2be", kill_on_drop: false }`
[INFO] [stdout] a7f3bc0711cbc48ac3e251d1e024afb465afe91452368c37c5632350c71ab2be