[INFO] fetching crate thread_io 0.2.0... [INFO] checking thread_io-0.2.0 against try#5fdfba63a96c5e8ae0ebf6b8b66853110277087d for pr-73166 [INFO] extracting crate thread_io 0.2.0 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate thread_io 0.2.0 on toolchain 5fdfba63a96c5e8ae0ebf6b8b66853110277087d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate thread_io 0.2.0 [INFO] finished tweaking crates.io crate thread_io 0.2.0 [INFO] tweaked toml for crates.io crate thread_io 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ca0a2767b00880a12571ad78f6d6703b10911d313f022e1c57e76e8c4febeafe [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ca0a2767b00880a12571ad78f6d6703b10911d313f022e1c57e76e8c4febeafe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ca0a2767b00880a12571ad78f6d6703b10911d313f022e1c57e76e8c4febeafe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca0a2767b00880a12571ad78f6d6703b10911d313f022e1c57e76e8c4febeafe", kill_on_drop: false }` [INFO] [stdout] ca0a2767b00880a12571ad78f6d6703b10911d313f022e1c57e76e8c4febeafe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 519c704ed07c08cdcc6ac0f9cb5b3530fab392154ff941d501b6a870fdb045fe [INFO] running `Command { std: "docker" "start" "-a" "519c704ed07c08cdcc6ac0f9cb5b3530fab392154ff941d501b6a870fdb045fe", kill_on_drop: false }` [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking owning_ref v0.4.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking smallvec v0.6.13 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking thread_io v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/read.rs:64:25 [INFO] [stdout] | [INFO] [stdout] 64 | let mut rdr = Reader::new(text, rdr_block_size, ::std::usize::MAX); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/read.rs:68:25 [INFO] [stdout] | [INFO] [stdout] 68 | let mut rdr = Reader::new(text, rdr_block_size, ::std::usize::MAX); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/read.rs:94:17 [INFO] [stdout] | [INFO] [stdout] 94 | let mut rdr = Reader::new(text, channel_bufsize, len / channel_bufsize); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/write.rs:61:21 [INFO] [stdout] | [INFO] [stdout] 61 | let mut w = writer_init_finish( [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.19s [INFO] running `Command { std: "docker" "inspect" "519c704ed07c08cdcc6ac0f9cb5b3530fab392154ff941d501b6a870fdb045fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "519c704ed07c08cdcc6ac0f9cb5b3530fab392154ff941d501b6a870fdb045fe", kill_on_drop: false }` [INFO] [stdout] 519c704ed07c08cdcc6ac0f9cb5b3530fab392154ff941d501b6a870fdb045fe