[INFO] fetching crate mqf 1.0.0... [INFO] checking mqf-1.0.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470 [INFO] extracting crate mqf 1.0.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate mqf 1.0.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate mqf 1.0.0 [INFO] finished tweaking crates.io crate mqf 1.0.0 [INFO] tweaked toml for crates.io crate mqf 1.0.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 17c12eda5830b5c05080e4002e791e0597bfed4554f6e0b53789020cd086102c [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" "17c12eda5830b5c05080e4002e791e0597bfed4554f6e0b53789020cd086102c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "17c12eda5830b5c05080e4002e791e0597bfed4554f6e0b53789020cd086102c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17c12eda5830b5c05080e4002e791e0597bfed4554f6e0b53789020cd086102c", kill_on_drop: false }` [INFO] [stdout] 17c12eda5830b5c05080e4002e791e0597bfed4554f6e0b53789020cd086102c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] eb0f3b47d5d8f51dd3833edb3aee4221744e11504abac00afa8e0c0fac1b04e2 [INFO] running `Command { std: "docker" "start" "-a" "eb0f3b47d5d8f51dd3833edb3aee4221744e11504abac00afa8e0c0fac1b04e2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling bindgen v0.51.1 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Compiling cmake v0.1.45 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling which v3.1.1 [INFO] [stderr] Compiling clang-sys v0.28.1 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling env_logger v0.6.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Compiling mqf v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `maximum_count` [INFO] [stdout] --> src/raw.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | let maximum_count = (1u64 << counter_size) - 1; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maximum_count` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/raw.rs:30:13 [INFO] [stdout] | [INFO] [stdout] 30 | let mut count = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/lib.rs:158:13 [INFO] [stdout] | [INFO] [stdout] 158 | let mut count = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:159:13 [INFO] [stdout] | [INFO] [stdout] 159 | let mut fixed_counter = 0; [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] --> src/lib.rs:189:13 [INFO] [stdout] | [INFO] [stdout] 189 | let mut count = qf.count_key(100); [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] --> src/lib.rs:216:13 [INFO] [stdout] | [INFO] [stdout] 216 | let mut file = tempfile::NamedTempFile::new().unwrap(); [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] --> src/raw.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let mut fixed_counter = 0; [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 11s [INFO] running `Command { std: "docker" "inspect" "eb0f3b47d5d8f51dd3833edb3aee4221744e11504abac00afa8e0c0fac1b04e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb0f3b47d5d8f51dd3833edb3aee4221744e11504abac00afa8e0c0fac1b04e2", kill_on_drop: false }` [INFO] [stdout] eb0f3b47d5d8f51dd3833edb3aee4221744e11504abac00afa8e0c0fac1b04e2