[INFO] fetching crate itf 0.4.0... [INFO] checking itf-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate itf 0.4.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate itf 0.4.0 [INFO] removed 0 missing examples [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate itf 0.4.0 [INFO] tweaked toml for crates.io crate itf 0.4.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate itf 0.4.0 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 itf 0.4.0 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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bcb679e09ba879b915084077aaa7c58aeaeb1f905f53a10609317f84da8a3a29 [INFO] running `Command { std: "docker" "start" "-a" "bcb679e09ba879b915084077aaa7c58aeaeb1f905f53a10609317f84da8a3a29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bcb679e09ba879b915084077aaa7c58aeaeb1f905f53a10609317f84da8a3a29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bcb679e09ba879b915084077aaa7c58aeaeb1f905f53a10609317f84da8a3a29", kill_on_drop: false }` [INFO] [stdout] bcb679e09ba879b915084077aaa7c58aeaeb1f905f53a10609317f84da8a3a29 [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 -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] 0c4cae82668a0e94dff2f0e42cc12cbfc77c4d0b3e09d3516de159418b8e5cee [INFO] running `Command { std: "docker" "start" "-a" "0c4cae82668a0e94dff2f0e42cc12cbfc77c4d0b3e09d3516de159418b8e5cee", kill_on_drop: false }` [INFO] [stderr] Compiling serde_json v1.0.140 [INFO] [stderr] Checking num-modular v0.6.1 [INFO] [stderr] Checking dashu-base v0.4.1 [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Checking num-order v1.2.0 [INFO] [stderr] Compiling darling_core v0.20.11 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling darling_macro v0.20.11 [INFO] [stderr] Compiling darling v0.20.11 [INFO] [stderr] Compiling serde_with_macros v3.12.0 [INFO] [stderr] Checking serde v1.0.219 [INFO] [stderr] Checking serde_with v3.12.0 [INFO] [stderr] Checking dashu-int v0.4.1 [INFO] [stderr] Checking itf v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/de/deserializer.rs:19:19 [INFO] [stdout] | [INFO] [stdout] 19 | fn unexpected(&self) -> Unexpected { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 19 | fn unexpected(&self) -> Unexpected<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/de/deserializer.rs:43:31 [INFO] [stdout] | [INFO] [stdout] 43 | let num = <$ty>::try_from(n).map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 98 | deserialize_number!(i64, to_i64, visit_i64, deserialize_i64); [INFO] [stdout] | ------------------------------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `deserialize_number` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/de/deserializer.rs:43:31 [INFO] [stdout] | [INFO] [stdout] 43 | let num = <$ty>::try_from(n).map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | deserialize_number!(i128, to_i128, visit_i128, deserialize_i128); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `deserialize_number` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/de/deserializer.rs:19:19 [INFO] [stdout] | [INFO] [stdout] 19 | fn unexpected(&self) -> Unexpected { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 19 | fn unexpected(&self) -> Unexpected<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/de/deserializer.rs:43:31 [INFO] [stdout] | [INFO] [stdout] 43 | let num = <$ty>::try_from(n).map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 98 | deserialize_number!(i64, to_i64, visit_i64, deserialize_i64); [INFO] [stdout] | ------------------------------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `deserialize_number` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/de/deserializer.rs:43:31 [INFO] [stdout] | [INFO] [stdout] 43 | let num = <$ty>::try_from(n).map_err(|_| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | deserialize_number!(i128, to_i128, visit_i128, deserialize_i128); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `deserialize_number` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `itf` (lib test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `itf` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "0c4cae82668a0e94dff2f0e42cc12cbfc77c4d0b3e09d3516de159418b8e5cee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c4cae82668a0e94dff2f0e42cc12cbfc77c4d0b3e09d3516de159418b8e5cee", kill_on_drop: false }` [INFO] [stdout] 0c4cae82668a0e94dff2f0e42cc12cbfc77c4d0b3e09d3516de159418b8e5cee