[INFO] fetching crate pkstl 0.1.0...
[INFO] checking pkstl-0.1.0 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate pkstl 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate pkstl 0.1.0 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pkstl 0.1.0
[INFO] finished tweaking crates.io crate pkstl 0.1.0
[INFO] tweaked toml for crates.io crate pkstl 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb0c1a4f509260687934eaf27bbcc64259deea59c694bb60a15c0c7813f5e303
[INFO] running `Command { std: "docker" "start" "-a" "eb0c1a4f509260687934eaf27bbcc64259deea59c694bb60a15c0c7813f5e303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb0c1a4f509260687934eaf27bbcc64259deea59c694bb60a15c0c7813f5e303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb0c1a4f509260687934eaf27bbcc64259deea59c694bb60a15c0c7813f5e303", kill_on_drop: false }`
[INFO] [stdout] eb0c1a4f509260687934eaf27bbcc64259deea59c694bb60a15c0c7813f5e303
[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" "-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03f12ca94072e08188cd0a88a4932dbd3e2384323fcfea5f216302a34cf20c2f
[INFO] running `Command { std: "docker" "start" "-a" "03f12ca94072e08188cd0a88a4932dbd3e2384323fcfea5f216302a34cf20c2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking chacha20-poly1305-aead v0.1.2
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling clear_on_drop v0.2.5
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pkstl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `B32` and `B64` are never constructed
[INFO] [stdout]   --> src/agreement.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum SharedSecretLen {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] 27 |     B32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     B48,
[INFO] [stdout] 29 |     B64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SharedSecretLen` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `incoming_datas` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/minimal.rs:622:9
[INFO] [stdout]     |
[INFO] [stdout] 622 |         incoming_datas.append(&mut sha256(&incoming_datas).as_ref().to_vec()); // Hash
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^-----------------------^^^^^^^^^^^^^^^^^^^- ... and the immutable borrow might be used here, when that temporary is dropped and runs the destructor for type `impl AsRef<[u8]>`
[INFO] [stdout]     |         |                          |      |
[INFO] [stdout]     |         |                          |      immutable borrow occurs here
[INFO] [stdout]     |         |                          a temporary with access to the immutable borrow is created here ...
[INFO] [stdout]     |         mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pkstl` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "03f12ca94072e08188cd0a88a4932dbd3e2384323fcfea5f216302a34cf20c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f12ca94072e08188cd0a88a4932dbd3e2384323fcfea5f216302a34cf20c2f", kill_on_drop: false }`
[INFO] [stdout] 03f12ca94072e08188cd0a88a4932dbd3e2384323fcfea5f216302a34cf20c2f