[INFO] fetching crate lber 0.2.0...
[INFO] checking lber-0.2.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate lber 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate lber 0.2.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lber 0.2.0
[INFO] finished tweaking crates.io crate lber 0.2.0
[INFO] tweaked toml for crates.io crate lber 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee4e9fba81c0a7ab3d036a0423b71871cba3d4fa5732ab39331ed6b951349b35
[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" "ee4e9fba81c0a7ab3d036a0423b71871cba3d4fa5732ab39331ed6b951349b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee4e9fba81c0a7ab3d036a0423b71871cba3d4fa5732ab39331ed6b951349b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4e9fba81c0a7ab3d036a0423b71871cba3d4fa5732ab39331ed6b951349b35", kill_on_drop: false }`
[INFO] [stdout] ee4e9fba81c0a7ab3d036a0423b71871cba3d4fa5732ab39331ed6b951349b35
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 401bb1c48062bb96aab3442b9f1a13fbaea11d3ff178460011031a24cea22ece
[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" "401bb1c48062bb96aab3442b9f1a13fbaea11d3ff178460011031a24cea22ece", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking lber v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TagStructure`
[INFO] [stdout]    --> src/parse.rs:154:28
[INFO] [stdout]     |
[INFO] [stdout] 154 |     use common::{TagClass, TagStructure};
[INFO] [stdout]     |                            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TagStructure`
[INFO] [stdout]   --> src/structure.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     use common::{TagClass, TagStructure};
[INFO] [stdout]    |                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "401bb1c48062bb96aab3442b9f1a13fbaea11d3ff178460011031a24cea22ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "401bb1c48062bb96aab3442b9f1a13fbaea11d3ff178460011031a24cea22ece", kill_on_drop: false }`
[INFO] [stdout] 401bb1c48062bb96aab3442b9f1a13fbaea11d3ff178460011031a24cea22ece