[INFO] fetching crate mahler-core 0.21.4... [INFO] checking mahler-core-0.21.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate mahler-core 0.21.4 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate mahler-core 0.21.4 [INFO] finished tweaking crates.io crate mahler-core 0.21.4 [INFO] tweaked toml for crates.io crate mahler-core 0.21.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mahler-core 0.21.4 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 mahler-core 0.21.4 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] bd8a9a0fb8c42e2f2438aa20a70d7a7a9283eb616444030a8bc375dac4f38621 [INFO] running `Command { std: "docker" "start" "-a" "bd8a9a0fb8c42e2f2438aa20a70d7a7a9283eb616444030a8bc375dac4f38621", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd8a9a0fb8c42e2f2438aa20a70d7a7a9283eb616444030a8bc375dac4f38621", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd8a9a0fb8c42e2f2438aa20a70d7a7a9283eb616444030a8bc375dac4f38621", kill_on_drop: false }` [INFO] [stdout] bd8a9a0fb8c42e2f2438aa20a70d7a7a9283eb616444030a8bc375dac4f38621 [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] 2149eccf78d0ac62187835b988bfa325863081ae46f2caf6b4467d7ee8940252 [INFO] running `Command { std: "docker" "start" "-a" "2149eccf78d0ac62187835b988bfa325863081ae46f2caf6b4467d7ee8940252", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling thiserror v2.0.17 [INFO] [stderr] Compiling anyhow v1.0.100 [INFO] [stderr] Checking regex-syntax v0.8.7 [INFO] [stderr] Checking nu-ansi-term v0.50.3 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking thread_local v1.1.9 [INFO] [stderr] Checking yansi v1.0.1 [INFO] [stderr] Checking matchit v0.8.6 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking pretty_assertions v1.4.1 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Checking regex-automata v0.4.12 [INFO] [stderr] Checking matchers v0.2.0 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tracing-attributes v0.1.30 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Compiling async-stream-impl v0.3.6 [INFO] [stderr] Compiling async-trait v0.1.89 [INFO] [stderr] Compiling dedent v0.1.1 [INFO] [stderr] Checking async-stream v0.3.6 [INFO] [stderr] Checking tokio v1.47.1 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking tracing-subscriber v0.3.20 [INFO] [stderr] Checking tokio-util v0.7.16 [INFO] [stderr] Checking tokio-stream v0.1.17 [INFO] [stderr] Checking jsonptr v0.7.1 [INFO] [stderr] Checking tokio-test v0.4.4 [INFO] [stderr] Checking json-patch v4.1.0 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking mahler-core v0.21.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `error` [INFO] [stdout] --> src/planner/mod.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | use tracing::{error, field, instrument, trace, trace_span, warn, Span}; [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: `error` [INFO] [stdout] --> src/planner/mod.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | use tracing::{error, field, instrument, trace, trace_span, warn, Span}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/extract/args/de.rs:49:25 [INFO] [stdout] | [INFO] [stdout] 49 | let value = self.url_params[0].1.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 92 | parse_single_value!(deserialize_string, visit_string, "String"); [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 `parse_single_value` (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 [INFO] [stdout] --> src/extract/args/de.rs:49:25 [INFO] [stdout] | [INFO] [stdout] 49 | let value = self.url_params[0].1.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | parse_single_value!(deserialize_byte_buf, visit_string, "String"); [INFO] [stdout] | ----------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `parse_single_value` (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 [INFO] [stdout] --> src/extract/args/de.rs:313:21 [INFO] [stdout] | [INFO] [stdout] 313 | let v = self.value.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 365 | parse_value!(deserialize_string, visit_string, "String"); [INFO] [stdout] | -------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `parse_value` (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 [INFO] [stdout] --> src/extract/args/de.rs:313:21 [INFO] [stdout] | [INFO] [stdout] 313 | let v = self.value.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 366 | parse_value!(deserialize_byte_buf, visit_string, "String"); [INFO] [stdout] | ---------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `parse_value` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mahler-core` (lib) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/extract/args/de.rs:49:25 [INFO] [stdout] | [INFO] [stdout] 49 | let value = self.url_params[0].1.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 92 | parse_single_value!(deserialize_string, visit_string, "String"); [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 `parse_single_value` (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 [INFO] [stdout] --> src/extract/args/de.rs:49:25 [INFO] [stdout] | [INFO] [stdout] 49 | let value = self.url_params[0].1.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | parse_single_value!(deserialize_byte_buf, visit_string, "String"); [INFO] [stdout] | ----------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `parse_single_value` (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 [INFO] [stdout] --> src/extract/args/de.rs:313:21 [INFO] [stdout] | [INFO] [stdout] 313 | let v = self.value.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 365 | parse_value!(deserialize_string, visit_string, "String"); [INFO] [stdout] | -------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `parse_value` (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 [INFO] [stdout] --> src/extract/args/de.rs:313:21 [INFO] [stdout] | [INFO] [stdout] 313 | let v = self.value.parse().map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 366 | parse_value!(deserialize_byte_buf, visit_string, "String"); [INFO] [stdout] | ---------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `parse_value` (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 [INFO] [stdout] --> src/task/effect.rs:184:20 [INFO] [stdout] | [INFO] [stdout] 184 | assert_eq!(effect.pure(), Ok(0)) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/task/effect.rs:184:35 [INFO] [stdout] | [INFO] [stdout] 184 | assert_eq!(effect.pure(), Ok(0)) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/task/effect.rs:184:9 [INFO] [stdout] | [INFO] [stdout] 184 | assert_eq!(effect.pure(), Ok(0)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (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 [INFO] [stdout] --> src/task/effect.rs:184:9 [INFO] [stdout] | [INFO] [stdout] 184 | assert_eq!(effect.pure(), Ok(0)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (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 [INFO] [stdout] --> src/task/effect.rs:184:9 [INFO] [stdout] | [INFO] [stdout] 184 | assert_eq!(effect.pure(), Ok(0)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (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 [INFO] [stdout] --> src/task/effect.rs:184:9 [INFO] [stdout] | [INFO] [stdout] 184 | assert_eq!(effect.pure(), Ok(0)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `assert_eq` (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, Infallible> [INFO] [stdout] --> src/task/mod.rs:421:42 [INFO] [stdout] | [INFO] [stdout] 421 | with_io(counter, |counter| async { [INFO] [stdout] | __________________________________________^ [INFO] [stdout] 422 | | sleep(Duration::from_millis(10)).await; [INFO] [stdout] 423 | | Ok(counter) [INFO] [stdout] 424 | | }) [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/task/mod.rs:423:13 [INFO] [stdout] | [INFO] [stdout] 423 | Ok(counter) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/worker/mod.rs:908:42 [INFO] [stdout] | [INFO] [stdout] 908 | with_io(counter, |counter| async { [INFO] [stdout] | __________________________________________^ [INFO] [stdout] 909 | | sleep(Duration::from_millis(10)).await; [INFO] [stdout] 910 | | Ok(counter) [INFO] [stdout] 911 | | }) [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/worker/mod.rs:910:13 [INFO] [stdout] | [INFO] [stdout] 910 | Ok(counter) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/worker/mod.rs:1069:46 [INFO] [stdout] | [INFO] [stdout] 1069 | with_io(counter, |counter| async { [INFO] [stdout] | ______________________________________________^ [INFO] [stdout] 1070 | | sleep(Duration::from_millis(10)).await; [INFO] [stdout] 1071 | | Ok(counter) [INFO] [stdout] 1072 | | }) [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/worker/mod.rs:1071:17 [INFO] [stdout] | [INFO] [stdout] 1071 | Ok(counter) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mahler-core` (lib test) due to 16 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "2149eccf78d0ac62187835b988bfa325863081ae46f2caf6b4467d7ee8940252", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2149eccf78d0ac62187835b988bfa325863081ae46f2caf6b4467d7ee8940252", kill_on_drop: false }` [INFO] [stdout] 2149eccf78d0ac62187835b988bfa325863081ae46f2caf6b4467d7ee8940252