[INFO] fetching crate ibc-types-core-channel 0.16.0...
[INFO] checking ibc-types-core-channel-0.16.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ibc-types-core-channel 0.16.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ibc-types-core-channel 0.16.0
[INFO] finished tweaking crates.io crate ibc-types-core-channel 0.16.0
[INFO] tweaked toml for crates.io crate ibc-types-core-channel 0.16.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ibc-types-core-channel 0.16.0 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 ibc-types-core-channel 0.16.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cce8207abc0fc2364030ab290af0548788a639b059fa2d5a78a213b63479d663
[INFO] running `Command { std: "docker" "start" "-a" "cce8207abc0fc2364030ab290af0548788a639b059fa2d5a78a213b63479d663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cce8207abc0fc2364030ab290af0548788a639b059fa2d5a78a213b63479d663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cce8207abc0fc2364030ab290af0548788a639b059fa2d5a78a213b63479d663", kill_on_drop: false }`
[INFO] [stdout] cce8207abc0fc2364030ab290af0548788a639b059fa2d5a78a213b63479d663
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 38b5628f1879be32bd733df930ae385b3e60a898a9049450d72f6d127e04d253
[INFO] running `Command { std: "docker" "start" "-a" "38b5628f1879be32bd733df930ae385b3e60a898a9049450d72f6d127e04d253", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.94
[INFO] [stderr]     Checking flex-error v0.4.4
[INFO] [stderr]    Compiling cc v1.2.18
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking dyn-clone v1.0.19
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]     Checking proc-macro2 v0.1.10
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]    Compiling safe-quote v1.0.39
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]    Compiling safe-regex-compiler v0.2.6
[INFO] [stderr]    Compiling safe-regex-macro v0.2.6
[INFO] [stderr]    Compiling blake3 v1.8.1
[INFO] [stderr]     Checking safe-regex v0.2.6
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling derive_more v0.99.19
[INFO] [stderr]    Compiling test-log-macros v0.2.17
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking curve25519-dalek-ng v4.1.1
[INFO] [stderr]     Checking ed25519-consensus v2.1.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking informalsystems-pbjson v0.7.0
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking ibc-types-identifier v0.16.0
[INFO] [stderr]     Checking tracing-serde v0.2.0
[INFO] [stderr]     Checking primitive-types v0.12.2
[INFO] [stderr]     Checking prost v0.13.5
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking tendermint-proto v0.40.3
[INFO] [stderr]     Checking ics23 v0.12.0
[INFO] [stderr]     Checking ibc-types-domain-type v0.16.0
[INFO] [stderr]     Checking test-log v0.2.17
[INFO] [stderr]     Checking tendermint v0.40.3
[INFO] [stderr]     Checking cosmos-sdk-proto v0.27.0
[INFO] [stderr]     Checking ibc-types-timestamp v0.16.0
[INFO] [stderr]     Checking tendermint-light-client-verifier v0.40.3
[INFO] [stderr]     Checking ibc-proto v0.52.0
[INFO] [stderr]     Checking ibc-types-core-client v0.16.0
[INFO] [stderr]     Checking ibc-types-core-commitment v0.16.0
[INFO] [stderr]     Checking ibc-types-core-connection v0.16.0
[INFO] [stderr]     Checking ibc-types-core-channel v0.16.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `PortChannelId` is never constructed
[INFO] [stdout]    --> src/identifier.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct PortChannelId {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: core::result::Result<version::Version, Infallible>
[INFO] [stdout]   --> src/version.rs:47:53
[INFO] [stdout]    |
[INFO] [stdout] 47 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 48 | |         Ok(Self::new(s.to_string()))
[INFO] [stdout] 49 | |     }
[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: core::result::Result<version::Version, Infallible>
[INFO] [stdout]   --> src/version.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         Ok(Self::new(s.to_string()))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ibc-types-core-channel` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `PortChannelId` is never constructed
[INFO] [stdout]    --> src/identifier.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct PortChannelId {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: core::result::Result<version::Version, Infallible>
[INFO] [stdout]   --> src/version.rs:47:53
[INFO] [stdout]    |
[INFO] [stdout] 47 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 48 | |         Ok(Self::new(s.to_string()))
[INFO] [stdout] 49 | |     }
[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: core::result::Result<version::Version, Infallible>
[INFO] [stdout]   --> src/version.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         Ok(Self::new(s.to_string()))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: core::result::Result<alloc::string::String, Infallible>
[INFO] [stdout]   --> src/mocks.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     "0CDA3F47EF3C4906693B170EF650EB968C5F4B2C".parse().unwrap()
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ibc-types-core-channel` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "38b5628f1879be32bd733df930ae385b3e60a898a9049450d72f6d127e04d253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38b5628f1879be32bd733df930ae385b3e60a898a9049450d72f6d127e04d253", kill_on_drop: false }`
[INFO] [stdout] 38b5628f1879be32bd733df930ae385b3e60a898a9049450d72f6d127e04d253
