[INFO] fetching crate lafs 0.0.5...
[INFO] checking lafs-0.0.5 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate lafs 0.0.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate lafs 0.0.5
[INFO] finished tweaking crates.io crate lafs 0.0.5
[INFO] tweaked toml for crates.io crate lafs 0.0.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lafs 0.0.5 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] crate crates.io crate lafs 0.0.5 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3e4a59ff8a734acd75488ae5a3974d67205316daac0dfeaafd1a56f271317058
[INFO] running `Command { std: "docker" "start" "-a" "3e4a59ff8a734acd75488ae5a3974d67205316daac0dfeaafd1a56f271317058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e4a59ff8a734acd75488ae5a3974d67205316daac0dfeaafd1a56f271317058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4a59ff8a734acd75488ae5a3974d67205316daac0dfeaafd1a56f271317058", kill_on_drop: false }`
[INFO] [stdout] 3e4a59ff8a734acd75488ae5a3974d67205316daac0dfeaafd1a56f271317058
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3aaa0e41c5baa81566daa9efe24c2fa7a91d70dbbb96cf20055a000787a0ec2e
[INFO] running `Command { std: "docker" "start" "-a" "3aaa0e41c5baa81566daa9efe24c2fa7a91d70dbbb96cf20055a000787a0ec2e", kill_on_drop: false }`
[INFO] [stderr]     Checking base64ct v1.8.0
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling pyo3-build-config v0.23.5
[INFO] [stderr]     Checking hex-conservative v0.3.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking der v0.7.10
[INFO] [stderr]     Checking bitcoin_hashes v0.16.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking pkcs1 v0.7.5
[INFO] [stderr]    Compiling pyo3-ffi v0.23.5
[INFO] [stderr]    Compiling pyo3-macros-backend v0.23.5
[INFO] [stderr]    Compiling pyo3 v0.23.5
[INFO] [stderr]     Checking rsa v0.9.8
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling pyo3-macros v0.23.5
[INFO] [stderr]     Checking lafs v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:20:79
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn derive_mutable_uri(py: Python, private_key_pem: &str, format: &str) -> PyObject {
[INFO] [stdout]    |                                                                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:35:45
[INFO] [stdout]    |
[INFO] [stdout] 35 |             fn b2a(py: Python, b: &[u8]) -> PyObject {
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:48:87
[INFO] [stdout]    |
[INFO] [stdout] 48 |             fn tagged_hash(py: Python, tag: &[u8], val: &[u8], truncate_to: usize) -> PyObject {
[INFO] [stdout]    |                                                                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:54:65
[INFO] [stdout]    |
[INFO] [stdout] 54 |             fn ssk_writekey_hash(py: Python, privkey: &[u8]) -> PyObject {
[INFO] [stdout]    |                                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:60:74
[INFO] [stdout]    |
[INFO] [stdout] 60 |             fn ssk_pubkey_fingerprint_hash(py: Python, pubkey: &[u8]) -> PyObject {
[INFO] [stdout]    |                                                                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:73:54
[INFO] [stdout]    |
[INFO] [stdout] 73 |             fn py_netstring(py: Python, s: &[u8]) -> PyObject {
[INFO] [stdout]    |                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lafs` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:20:79
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn derive_mutable_uri(py: Python, private_key_pem: &str, format: &str) -> PyObject {
[INFO] [stdout]    |                                                                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:35:45
[INFO] [stdout]    |
[INFO] [stdout] 35 |             fn b2a(py: Python, b: &[u8]) -> PyObject {
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:48:87
[INFO] [stdout]    |
[INFO] [stdout] 48 |             fn tagged_hash(py: Python, tag: &[u8], val: &[u8], truncate_to: usize) -> PyObject {
[INFO] [stdout]    |                                                                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:54:65
[INFO] [stdout]    |
[INFO] [stdout] 54 |             fn ssk_writekey_hash(py: Python, privkey: &[u8]) -> PyObject {
[INFO] [stdout]    |                                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:60:74
[INFO] [stdout]    |
[INFO] [stdout] 60 |             fn ssk_pubkey_fingerprint_hash(py: Python, pubkey: &[u8]) -> PyObject {
[INFO] [stdout]    |                                                                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Py<PyAny>, Infallible>
[INFO] [stdout]   --> src/lib.rs:73:54
[INFO] [stdout]    |
[INFO] [stdout] 73 |             fn py_netstring(py: Python, s: &[u8]) -> PyObject {
[INFO] [stdout]    |                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lafs` (lib test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "3aaa0e41c5baa81566daa9efe24c2fa7a91d70dbbb96cf20055a000787a0ec2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aaa0e41c5baa81566daa9efe24c2fa7a91d70dbbb96cf20055a000787a0ec2e", kill_on_drop: false }`
[INFO] [stdout] 3aaa0e41c5baa81566daa9efe24c2fa7a91d70dbbb96cf20055a000787a0ec2e
