[INFO] fetching crate memory_slice 0.1.0-preview3...
[INFO] checking memory_slice-0.1.0-preview3 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate memory_slice 0.1.0-preview3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate memory_slice 0.1.0-preview3 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memory_slice 0.1.0-preview3
[INFO] finished tweaking crates.io crate memory_slice 0.1.0-preview3
[INFO] tweaked toml for crates.io crate memory_slice 0.1.0-preview3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded contracts v0.6.0
[INFO] [stderr]   Downloaded galvanic-assert v0.8.7
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c24d6ddf27642fd618e3e6519c1f8d967805becdbd06255da425fdcd90f89f1
[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" "4c24d6ddf27642fd618e3e6519c1f8d967805becdbd06255da425fdcd90f89f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c24d6ddf27642fd618e3e6519c1f8d967805becdbd06255da425fdcd90f89f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c24d6ddf27642fd618e3e6519c1f8d967805becdbd06255da425fdcd90f89f1", kill_on_drop: false }`
[INFO] [stdout] 4c24d6ddf27642fd618e3e6519c1f8d967805becdbd06255da425fdcd90f89f1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fb6e645cbf73fdf24bb35a9aa91b214ec5e83f8b543b2cbcb3ff0a565317a1b1
[INFO] running `Command { std: "docker" "start" "-a" "fb6e645cbf73fdf24bb35a9aa91b214ec5e83f8b543b2cbcb3ff0a565317a1b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking galvanic-assert v0.8.7
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rstest v0.6.4
[INFO] [stderr]    Compiling contracts v0.6.0
[INFO] [stderr]     Checking memory_slice v0.1.0-preview3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:220:20
[INFO] [stdout]     |
[INFO] [stdout] 220 |     #[test_ensures(unsafe{ret.0.as_ptr().add(mid)} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 220 |     #[test_ensures("{}", unsafe{ret.0.as_ptr().add(mid)} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:230:20
[INFO] [stdout]     |
[INFO] [stdout] 230 |     #[test_ensures(unsafe{ret.0.as_ptr().add(mid)} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 230 |     #[test_ensures("{}", unsafe{ret.0.as_ptr().add(mid)} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:239:20
[INFO] [stdout]     |
[INFO] [stdout] 239 |       #[test_ensures(unsafe{*(&self.inner as *const [Underlying] as *const[u8]) 
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 240 | |         == *(&other.inner as *const [Underlying] as *const[u8])})]
[INFO] [stdout]     | |________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 239 |     #[test_ensures("{}", unsafe{*(&self.inner as *const [Underlying] as *const[u8]) 
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:322:20
[INFO] [stdout]     |
[INFO] [stdout] 322 |     #[test_ensures(unsafe{ret.0.as_ptr().add(ret.0.len())} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 322 |     #[test_ensures("{}", unsafe{ret.0.as_ptr().add(ret.0.len())} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:323:20
[INFO] [stdout]     |
[INFO] [stdout] 323 |     #[test_ensures(unsafe{ret.1.as_ptr().add(ret.1.len())} == ret.2.as_ptr())]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 323 |     #[test_ensures("{}", unsafe{ret.1.as_ptr().add(ret.1.len())} == ret.2.as_ptr())]
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:372:20
[INFO] [stdout]     |
[INFO] [stdout] 372 |     #[test_ensures(unsafe{ret.0.as_ptr().add(ret.0.len())} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 372 |     #[test_ensures("{}", unsafe{ret.0.as_ptr().add(ret.0.len())} == ret.1.as_ptr())]
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:373:20
[INFO] [stdout]     |
[INFO] [stdout] 373 |     #[test_ensures(unsafe{ret.1.as_ptr().add(ret.1.len())} == ret.2.as_ptr())]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 373 |     #[test_ensures("{}", unsafe{ret.1.as_ptr().add(ret.1.len())} == ret.2.as_ptr())]
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.68s
[INFO] running `Command { std: "docker" "inspect" "fb6e645cbf73fdf24bb35a9aa91b214ec5e83f8b543b2cbcb3ff0a565317a1b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb6e645cbf73fdf24bb35a9aa91b214ec5e83f8b543b2cbcb3ff0a565317a1b1", kill_on_drop: false }`
[INFO] [stdout] fb6e645cbf73fdf24bb35a9aa91b214ec5e83f8b543b2cbcb3ff0a565317a1b1