[INFO] fetching crate lucia-lang 0.2.0...
[INFO] checking lucia-lang-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate lucia-lang 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate lucia-lang 0.2.0
[INFO] finished tweaking crates.io crate lucia-lang 0.2.0
[INFO] tweaked toml for crates.io crate lucia-lang 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lucia-lang 0.2.0 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] 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding gc-arena v0.3.3 (available: v0.5.3)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ff458bc31d4cf6c6b38eb1547d6394b04e35ea3714c8d79fad79d972e563c6b8
[INFO] running `Command { std: "docker" "start" "-a" "ff458bc31d4cf6c6b38eb1547d6394b04e35ea3714c8d79fad79d972e563c6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff458bc31d4cf6c6b38eb1547d6394b04e35ea3714c8d79fad79d972e563c6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff458bc31d4cf6c6b38eb1547d6394b04e35ea3714c8d79fad79d972e563c6b8", kill_on_drop: false }`
[INFO] [stdout] ff458bc31d4cf6c6b38eb1547d6394b04e35ea3714c8d79fad79d972e563c6b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 42146d2fa430b9c07b942dc3a603e5381c290019778dfa4bc64e71c37e3e9fa8
[INFO] running `Command { std: "docker" "start" "-a" "42146d2fa430b9c07b942dc3a603e5381c290019778dfa4bc64e71c37e3e9fa8", kill_on_drop: false }`
[INFO] [stderr]     Checking sptr v0.3.2
[INFO] [stderr]     Checking unicode-xid v0.2.6
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling gc-arena-derive v0.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking gc-arena v0.3.3
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking lucia-lang v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]    --> src/compiler/analyzer.rs:562:43
[INFO] [stdout]     |
[INFO] [stdout] 562 |                     base_func.local_names.remove(name);
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]    --> src/compiler/analyzer.rs:633:43
[INFO] [stdout]     |
[INFO] [stdout] 633 |                     base_func.local_names.remove(name);
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]    --> src/compiler/analyzer.rs:562:43
[INFO] [stdout]     |
[INFO] [stdout] 562 |                     base_func.local_names.remove(name);
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]    --> src/compiler/analyzer.rs:633:43
[INFO] [stdout]     |
[INFO] [stdout] 633 |                     base_func.local_names.remove(name);
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexMap::<K, V, S>::remove`: `remove` disrupts the map order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]   --> src/objects/table.rs:81:25
[INFO] [stdout]    |
[INFO] [stdout] 81 |             entries.map.remove(&key);
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexMap::<K, V, S>::remove`: `remove` disrupts the map order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]   --> src/objects/table.rs:81:25
[INFO] [stdout]    |
[INFO] [stdout] 81 |             entries.map.remove(&key);
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/objects/conversion.rs:192:28
[INFO] [stdout]     |
[INFO] [stdout] 192 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8, isize, usize);
[INFO] [stdout]     | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/objects/conversion.rs:192:28
[INFO] [stdout]     |
[INFO] [stdout] 192 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8, isize, usize);
[INFO] [stdout]     | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/objects/callback.rs:176:19
[INFO] [stdout]     |
[INFO] [stdout] 176 |         struct CB(i64);
[INFO] [stdout]     |                -- ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[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: Result<i64, Infallible>
[INFO] [stdout]    --> src/objects/conversion.rs:192:40
[INFO] [stdout]     |
[INFO] [stdout] 192 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8, isize, usize);
[INFO] [stdout]     | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/objects/conversion.rs:192:40
[INFO] [stdout]     |
[INFO] [stdout] 192 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8, isize, usize);
[INFO] [stdout]     | ------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lucia-lang` (lib) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lucia-lang` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "42146d2fa430b9c07b942dc3a603e5381c290019778dfa4bc64e71c37e3e9fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42146d2fa430b9c07b942dc3a603e5381c290019778dfa4bc64e71c37e3e9fa8", kill_on_drop: false }`
[INFO] [stdout] 42146d2fa430b9c07b942dc3a603e5381c290019778dfa4bc64e71c37e3e9fa8
