[INFO] cloning repository https://github.com/renatocassino/infinite-monkey [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/renatocassino/infinite-monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenatocassino%2Finfinite-monkey", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenatocassino%2Finfinite-monkey'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 69abfbdf04a984a53f6f3c4f9f80c79ba8298fa8 [INFO] checking renatocassino/infinite-monkey against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenatocassino%2Finfinite-monkey" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/renatocassino/infinite-monkey on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/renatocassino/infinite-monkey [INFO] finished tweaking git repo https://github.com/renatocassino/infinite-monkey [INFO] tweaked toml for git repo https://github.com/renatocassino/infinite-monkey written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/renatocassino/infinite-monkey 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f35ecfe4315cf60cc8d71ffd34b12632c5fcf31d4765408125037937579e3d3e [INFO] running `Command { std: "docker" "start" "-a" "f35ecfe4315cf60cc8d71ffd34b12632c5fcf31d4765408125037937579e3d3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f35ecfe4315cf60cc8d71ffd34b12632c5fcf31d4765408125037937579e3d3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f35ecfe4315cf60cc8d71ffd34b12632c5fcf31d4765408125037937579e3d3e", kill_on_drop: false }` [INFO] [stdout] f35ecfe4315cf60cc8d71ffd34b12632c5fcf31d4765408125037937579e3d3e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d11a7a454d6f37bc72a6dc3ed289b0ae9e08e8008e48b6e9016fae5ac66ad510 [INFO] running `Command { std: "docker" "start" "-a" "d11a7a454d6f37bc72a6dc3ed289b0ae9e08e8008e48b6e9016fae5ac66ad510", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking unicode-bidi v0.3.13 [INFO] [stderr] Checking percent-encoding v2.2.0 [INFO] [stderr] Checking bytes v1.4.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking ryu v1.0.13 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Checking form_urlencoded v1.1.0 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Checking sha1_smol v1.0.0 [INFO] [stderr] Checking combine v4.6.6 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking num_cpus v1.15.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking idna v0.3.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking url v2.3.1 [INFO] [stderr] Checking redis v0.23.0 [INFO] [stderr] Checking monkeys v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/monkeys.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/monkeys.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration` and `Instant` [INFO] [stdout] --> src/monkeys.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration` and `Instant` [INFO] [stdout] --> src/monkeys.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `redis::Commands` [INFO] [stdout] --> src/monkeys.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use redis::Commands; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `redis::Commands` [INFO] [stdout] --> src/monkeys.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use redis::Commands; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file_ref` [INFO] [stdout] --> src/monkeys.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | let file_ref = OpenOptions::new() [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_ref` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file_ref` [INFO] [stdout] --> src/monkeys.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | let file_ref = OpenOptions::new() [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_ref` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.94s [INFO] running `Command { std: "docker" "inspect" "d11a7a454d6f37bc72a6dc3ed289b0ae9e08e8008e48b6e9016fae5ac66ad510", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d11a7a454d6f37bc72a6dc3ed289b0ae9e08e8008e48b6e9016fae5ac66ad510", kill_on_drop: false }` [INFO] [stdout] d11a7a454d6f37bc72a6dc3ed289b0ae9e08e8008e48b6e9016fae5ac66ad510 [INFO] checking renatocassino/infinite-monkey against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenatocassino%2Finfinite-monkey" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/renatocassino/infinite-monkey on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/renatocassino/infinite-monkey [INFO] finished tweaking git repo https://github.com/renatocassino/infinite-monkey [INFO] tweaked toml for git repo https://github.com/renatocassino/infinite-monkey written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/renatocassino/infinite-monkey 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dc48c2d72b17543571afbc22370c4065344e63d355760dc510a68460f2dac444 [INFO] running `Command { std: "docker" "start" "-a" "dc48c2d72b17543571afbc22370c4065344e63d355760dc510a68460f2dac444", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dc48c2d72b17543571afbc22370c4065344e63d355760dc510a68460f2dac444", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc48c2d72b17543571afbc22370c4065344e63d355760dc510a68460f2dac444", kill_on_drop: false }` [INFO] [stdout] dc48c2d72b17543571afbc22370c4065344e63d355760dc510a68460f2dac444 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cdcbbee891bb9069ad63dd315bfa1346ce4c7526c204cdabe30e17573c9b0ebb [INFO] running `Command { std: "docker" "start" "-a" "cdcbbee891bb9069ad63dd315bfa1346ce4c7526c204cdabe30e17573c9b0ebb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking unicode-bidi v0.3.13 [INFO] [stderr] Checking percent-encoding v2.2.0 [INFO] [stderr] Checking bytes v1.4.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking sha1_smol v1.0.0 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Checking form_urlencoded v1.1.0 [INFO] [stderr] Checking ryu v1.0.13 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Checking combine v4.6.6 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking num_cpus v1.15.0 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking idna v0.3.0 [INFO] [stderr] Checking url v2.3.1 [INFO] [stderr] Checking redis v0.23.0 [INFO] [stderr] Checking monkeys v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/monkeys.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration` and `Instant` [INFO] [stdout] --> src/monkeys.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/monkeys.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration` and `Instant` [INFO] [stdout] --> src/monkeys.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/researcher.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 10 | fn read_lines
(filename: P) -> io::Result (filename: P) -> io::Result