[INFO] fetching crate corgi 0.9.9... [INFO] checking corgi-0.9.9 against try#fafe42c59556a4233f03dd0d900b575a9afeece8 for pr-143764 [INFO] extracting crate corgi 0.9.9 into /workspace/builds/worker-7-tc2/source [INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config [INFO] started tweaking crates.io crate corgi 0.9.9 [INFO] finished tweaking crates.io crate corgi 0.9.9 [INFO] tweaked toml for crates.io crate corgi 0.9.9 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate corgi 0.9.9 on toolchain fafe42c59556a4233f03dd0d900b575a9afeece8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "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" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 106 packages to latest compatible versions [INFO] [stderr] Adding approx v0.4.0 (available: v0.5.1) [INFO] [stderr] Adding cblas-sys v0.1.4 (available: v0.3.0) [INFO] [stderr] Adding netlib-src v0.8.0 (available: v0.9.0) [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b34a3ed44a848a5134e6d4d1ccaec3d22a740c71bd72fc768383cfa8ad6992a9 [INFO] running `Command { std: "docker" "start" "-a" "b34a3ed44a848a5134e6d4d1ccaec3d22a740c71bd72fc768383cfa8ad6992a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b34a3ed44a848a5134e6d4d1ccaec3d22a740c71bd72fc768383cfa8ad6992a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b34a3ed44a848a5134e6d4d1ccaec3d22a740c71bd72fc768383cfa8ad6992a9", kill_on_drop: false }` [INFO] [stdout] b34a3ed44a848a5134e6d4d1ccaec3d22a740c71bd72fc768383cfa8ad6992a9 [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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 28a7e37c2ad438e7ba9b733db41313c145d8fdecd29c41887c327abbbb0df063 [INFO] running `Command { std: "docker" "start" "-a" "28a7e37c2ad438e7ba9b733db41313c145d8fdecd29c41887c327abbbb0df063", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.174 [INFO] [stderr] Compiling zerocopy v0.8.26 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Checking cfg-if v1.0.1 [INFO] [stderr] Compiling cc v1.2.29 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking getrandom v0.2.16 [INFO] [stderr] Checking approx v0.4.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling libmimalloc-sys v0.1.43 [INFO] [stderr] Checking ppv-lite86 v0.2.21 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking mimalloc v0.1.47 [INFO] [stderr] Checking corgi v0.9.9 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/array/mod.rs:293:21 [INFO] [stdout] | [INFO] [stdout] 293 | pub fn gradient(&self) -> Ref> { [INFO] [stdout] | ^^^^^ ------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 293 | pub fn gradient(&self) -> Ref<'_, Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/array/mod.rs:298:25 [INFO] [stdout] | [INFO] [stdout] 298 | pub fn gradient_mut(&self) -> RefMut> { [INFO] [stdout] | ^^^^^ --------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 298 | pub fn gradient_mut(&self) -> RefMut<'_, Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/array/mod.rs:293:21 [INFO] [stdout] | [INFO] [stdout] 293 | pub fn gradient(&self) -> Ref> { [INFO] [stdout] | ^^^^^ ------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 293 | pub fn gradient(&self) -> Ref<'_, Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/array/mod.rs:298:25 [INFO] [stdout] | [INFO] [stdout] 298 | pub fn gradient_mut(&self) -> RefMut> { [INFO] [stdout] | ^^^^^ --------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 298 | pub fn gradient_mut(&self) -> RefMut<'_, Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `from` that must be used [INFO] [stdout] --> src/array/mod.rs:897:9 [INFO] [stdout] | [INFO] [stdout] 897 | arr![arr![arr![0.0], arr![1.0]], arr![arr![2.0, 3.0], arr![4.0]]]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 897 | let _ = arr![arr![arr![0.0], arr![1.0]], arr![arr![2.0, 3.0], arr![4.0]]];; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.09s [INFO] running `Command { std: "docker" "inspect" "28a7e37c2ad438e7ba9b733db41313c145d8fdecd29c41887c327abbbb0df063", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "28a7e37c2ad438e7ba9b733db41313c145d8fdecd29c41887c327abbbb0df063", kill_on_drop: false }` [INFO] [stdout] 28a7e37c2ad438e7ba9b733db41313c145d8fdecd29c41887c327abbbb0df063