[INFO] fetching crate dlwp 0.1.0-alpha...
[INFO] checking dlwp-0.1.0-alpha against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dlwp 0.1.0-alpha into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate dlwp 0.1.0-alpha
[INFO] finished tweaking crates.io crate dlwp 0.1.0-alpha
[INFO] tweaked toml for crates.io crate dlwp 0.1.0-alpha written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dlwp 0.1.0-alpha on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages to latest compatible versions
[INFO] [stderr]       Adding serialport v3.3.0 (available: v4.8.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff7dfb644cab5114e6bfcbe981c46602b37c639d06a56aafc1ddbec10530f8ab
[INFO] running `Command { std: "docker" "start" "-a" "ff7dfb644cab5114e6bfcbe981c46602b37c639d06a56aafc1ddbec10530f8ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff7dfb644cab5114e6bfcbe981c46602b37c639d06a56aafc1ddbec10530f8ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff7dfb644cab5114e6bfcbe981c46602b37c639d06a56aafc1ddbec10530f8ab", kill_on_drop: false }`
[INFO] [stdout] ff7dfb644cab5114e6bfcbe981c46602b37c639d06a56aafc1ddbec10530f8ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33ef0c16db2181ab6d4914e674694ebcf4995973a25500d59899ca80fa15c700
[INFO] running `Command { std: "docker" "start" "-a" "33ef0c16db2181ab6d4914e674694ebcf4995973a25500d59899ca80fa15c700", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking cerpton v0.1.1
[INFO] [stderr]     Checking dlwp v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `libcerpton_decode` and `libcerpton_encode`
[INFO] [stdout]  --> src/tests/message.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cerpton::{libcerpton_decode, libcerpton_encode};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `encryption::EncryptionInfo`
[INFO] [stdout]  --> src/tests/message.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     encryption::EncryptionInfo,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]  --> src/encryption.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Clone, Copy, PartialEq)]
[INFO] [stdout]   |                       --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 7 |     pub encode_function: fn([i32; 6], String) -> String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: the address of the same function can vary between different codegen units
[INFO] [stdout]   = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]   = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]   = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/encryption.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  3 | #[derive(Clone, Copy, PartialEq)]
[INFO] [stdout]    |                       --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub decode_function: fn([i32; 6], String) -> String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]   --> src/message.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let bytes: &[u8] = string.as_bytes().try_into().unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dlwp` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]  --> src/encryption.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Clone, Copy, PartialEq)]
[INFO] [stdout]   |                       --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 7 |     pub encode_function: fn([i32; 6], String) -> String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: the address of the same function can vary between different codegen units
[INFO] [stdout]   = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]   = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]   = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/encryption.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  3 | #[derive(Clone, Copy, PartialEq)]
[INFO] [stdout]    |                       --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub decode_function: fn([i32; 6], String) -> String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]   --> src/message.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let bytes: &[u8] = string.as_bytes().try_into().unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dlwp` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "33ef0c16db2181ab6d4914e674694ebcf4995973a25500d59899ca80fa15c700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ef0c16db2181ab6d4914e674694ebcf4995973a25500d59899ca80fa15c700", kill_on_drop: false }`
[INFO] [stdout] 33ef0c16db2181ab6d4914e674694ebcf4995973a25500d59899ca80fa15c700
