[INFO] fetching crate arrayvec 0.7.6... [INFO] checking arrayvec-0.7.6 against master#0fb279be1d96464c69209053ef0f97ad63088cda for pr-143857 [INFO] extracting crate arrayvec 0.7.6 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate arrayvec 0.7.6 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate arrayvec 0.7.6 [INFO] tweaked toml for crates.io crate arrayvec 0.7.6 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate arrayvec 0.7.6 on toolchain 0fb279be1d96464c69209053ef0f97ad63088cda [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "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" "+0fb279be1d96464c69209053ef0f97ad63088cda" "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 12 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+0fb279be1d96464c69209053ef0f97ad63088cda" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4459adee500bc7a0c26590c41665afd6ebf86746142204df0fa783bf071c583b [INFO] running `Command { std: "docker" "start" "-a" "4459adee500bc7a0c26590c41665afd6ebf86746142204df0fa783bf071c583b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4459adee500bc7a0c26590c41665afd6ebf86746142204df0fa783bf071c583b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4459adee500bc7a0c26590c41665afd6ebf86746142204df0fa783bf071c583b", kill_on_drop: false }` [INFO] [stdout] 4459adee500bc7a0c26590c41665afd6ebf86746142204df0fa783bf071c583b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+0fb279be1d96464c69209053ef0f97ad63088cda" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 18a4b8263af1c944a6a0fe9d8c00f549571f95d4c5d45a88879c4c3b171c39f2 [INFO] running `Command { std: "docker" "start" "-a" "18a4b8263af1c944a6a0fe9d8c00f549571f95d4c5d45a88879c4c3b171c39f2", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Checking bencher v0.1.5 [INFO] [stderr] Checking arrayvec v0.7.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/arrayvec.rs:605:21 [INFO] [stdout] | [INFO] [stdout] 605 | pub fn drain(&mut self, range: R) -> Drain [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] 605 | pub fn drain(&mut self, range: R) -> Drain<'_, T, CAP> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/arrayvec.rs:632:20 [INFO] [stdout] | [INFO] [stdout] 632 | fn drain_range(&mut self, start: usize, end: usize) -> Drain [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] 632 | fn drain_range(&mut self, start: usize, end: usize) -> Drain<'_, T, CAP> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking serde_test v1.0.177 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/arrayvec.rs:605:21 [INFO] [stdout] | [INFO] [stdout] 605 | pub fn drain(&mut self, range: R) -> Drain [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] 605 | pub fn drain(&mut self, range: R) -> Drain<'_, T, CAP> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/arrayvec.rs:632:20 [INFO] [stdout] | [INFO] [stdout] 632 | fn drain_range(&mut self, start: usize, end: usize) -> Drain [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] 632 | fn drain_range(&mut self, start: usize, end: usize) -> Drain<'_, T, CAP> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.59s [INFO] running `Command { std: "docker" "inspect" "18a4b8263af1c944a6a0fe9d8c00f549571f95d4c5d45a88879c4c3b171c39f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "18a4b8263af1c944a6a0fe9d8c00f549571f95d4c5d45a88879c4c3b171c39f2", kill_on_drop: false }` [INFO] [stdout] 18a4b8263af1c944a6a0fe9d8c00f549571f95d4c5d45a88879c4c3b171c39f2