[INFO] fetching crate varint 0.9.0... [INFO] checking varint-0.9.0 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015 [INFO] extracting crate varint 0.9.0 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate varint 0.9.0 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate varint 0.9.0 [INFO] finished tweaking crates.io crate varint 0.9.0 [INFO] tweaked toml for crates.io crate varint 0.9.0 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bit_utils v0.1.1 [INFO] [stderr] Downloaded io_operations v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd5d48366a94d6830a5f93e5cd0dd1fa173bc0ca4e9ded425fca1dadfd8632b0 [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" "cd5d48366a94d6830a5f93e5cd0dd1fa173bc0ca4e9ded425fca1dadfd8632b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd5d48366a94d6830a5f93e5cd0dd1fa173bc0ca4e9ded425fca1dadfd8632b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd5d48366a94d6830a5f93e5cd0dd1fa173bc0ca4e9ded425fca1dadfd8632b0", kill_on_drop: false }` [INFO] [stdout] cd5d48366a94d6830a5f93e5cd0dd1fa173bc0ca4e9ded425fca1dadfd8632b0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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] c129e7836b98ee9d50a2e1a0575305e8c9858f5c55a00e588d0913d4bd01a17f [INFO] running `Command { std: "docker" "start" "-a" "c129e7836b98ee9d50a2e1a0575305e8c9858f5c55a00e588d0913d4bd01a17f", kill_on_drop: false }` [INFO] [stderr] Checking bit_utils v0.1.1 [INFO] [stderr] Checking varint v0.9.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `next_byte` is never read [INFO] [stdout] --> src/rawio.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut next_byte: u8 = 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `next_byte` is never read [INFO] [stdout] --> src/rawio.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut next_byte: u8 = 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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.60s [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c129e7836b98ee9d50a2e1a0575305e8c9858f5c55a00e588d0913d4bd01a17f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c129e7836b98ee9d50a2e1a0575305e8c9858f5c55a00e588d0913d4bd01a17f", kill_on_drop: false }` [INFO] [stdout] c129e7836b98ee9d50a2e1a0575305e8c9858f5c55a00e588d0913d4bd01a17f