[INFO] fetching crate limit_read 0.2.0... [INFO] building limit_read-0.2.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate limit_read 0.2.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate limit_read 0.2.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate limit_read 0.2.0 [INFO] finished tweaking crates.io crate limit_read 0.2.0 [INFO] tweaked toml for crates.io crate limit_read 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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 1 package to latest compatible version [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fc0788abeb0362a0c4df32390707e70f1feb7f66a28edfd9c73f7db2d68177e3 [INFO] running `Command { std: "docker" "start" "-a" "fc0788abeb0362a0c4df32390707e70f1feb7f66a28edfd9c73f7db2d68177e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc0788abeb0362a0c4df32390707e70f1feb7f66a28edfd9c73f7db2d68177e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc0788abeb0362a0c4df32390707e70f1feb7f66a28edfd9c73f7db2d68177e3", kill_on_drop: false }` [INFO] [stdout] fc0788abeb0362a0c4df32390707e70f1feb7f66a28edfd9c73f7db2d68177e3 [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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 20f1e6d0d27a2106b233c1bfd00511ada36dae42d74e831e1517561ea9810816 [INFO] running `Command { std: "docker" "start" "-a" "20f1e6d0d27a2106b233c1bfd00511ada36dae42d74e831e1517561ea9810816", kill_on_drop: false }` [INFO] [stderr] Compiling limit_read v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] running `Command { std: "docker" "inspect" "20f1e6d0d27a2106b233c1bfd00511ada36dae42d74e831e1517561ea9810816", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20f1e6d0d27a2106b233c1bfd00511ada36dae42d74e831e1517561ea9810816", kill_on_drop: false }` [INFO] [stdout] 20f1e6d0d27a2106b233c1bfd00511ada36dae42d74e831e1517561ea9810816 [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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9edb9c459beed7a9171e4d0296614986c82be3f7f56c586ccfbb8548f30a14eb [INFO] running `Command { std: "docker" "start" "-a" "9edb9c459beed7a9171e4d0296614986c82be3f7f56c586ccfbb8548f30a14eb", kill_on_drop: false }` [INFO] [stderr] Compiling limit_read v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Result::::is_err` that must be used [INFO] [stdout] --> src/lib.rs:194:5 [INFO] [stdout] | [INFO] [stdout] 194 | / buf_reader [INFO] [stdout] 195 | | .read_until_lim(';' as u8, &mut buf, &short_lim) [INFO] [stdout] 196 | | .is_err(); [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is err, consider `.unwrap_err()` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 194 | let _ = buf_reader [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_err` that must be used [INFO] [stdout] --> src/lib.rs:215:5 [INFO] [stdout] | [INFO] [stdout] 215 | buf_reader.read_line_lim(&mut buf, &short_lim).is_err(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is err, consider `.unwrap_err()` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 215 | let _ = buf_reader.read_line_lim(&mut buf, &short_lim).is_err(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s [INFO] running `Command { std: "docker" "inspect" "9edb9c459beed7a9171e4d0296614986c82be3f7f56c586ccfbb8548f30a14eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9edb9c459beed7a9171e4d0296614986c82be3f7f56c586ccfbb8548f30a14eb", kill_on_drop: false }` [INFO] [stdout] 9edb9c459beed7a9171e4d0296614986c82be3f7f56c586ccfbb8548f30a14eb