[INFO] fetching crate quickbacktrack 0.5.0...
[INFO] checking quickbacktrack-0.5.0 against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] extracting crate quickbacktrack 0.5.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate quickbacktrack 0.5.0 on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quickbacktrack 0.5.0
[INFO] finished tweaking crates.io crate quickbacktrack 0.5.0
[INFO] tweaked toml for crates.io crate quickbacktrack 0.5.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6aad001ac95f3f07593fd307a9e317a3f9faa4f252aa8e9d6276ebc54bb9e61
[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" "e6aad001ac95f3f07593fd307a9e317a3f9faa4f252aa8e9d6276ebc54bb9e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6aad001ac95f3f07593fd307a9e317a3f9faa4f252aa8e9d6276ebc54bb9e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6aad001ac95f3f07593fd307a9e317a3f9faa4f252aa8e9d6276ebc54bb9e61", kill_on_drop: false }`
[INFO] [stdout] e6aad001ac95f3f07593fd307a9e317a3f9faa4f252aa8e9d6276ebc54bb9e61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 956ff5f87abad3ec3618ed4306a8e6966d76c3b9e5f7dd45f040dfe15062e852
[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" "956ff5f87abad3ec3618ed4306a8e6966d76c3b9e5f7dd45f040dfe15062e852", kill_on_drop: false }`
[INFO] [stderr]     Checking quickbacktrack v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `PartialOrd` is imported redundantly
[INFO] [stdout]    --> examples/tsp.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 |             use std::cmp::PartialOrd;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` 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 1.78s
[INFO] running `Command { std: "docker" "inspect" "956ff5f87abad3ec3618ed4306a8e6966d76c3b9e5f7dd45f040dfe15062e852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956ff5f87abad3ec3618ed4306a8e6966d76c3b9e5f7dd45f040dfe15062e852", kill_on_drop: false }`
[INFO] [stdout] 956ff5f87abad3ec3618ed4306a8e6966d76c3b9e5f7dd45f040dfe15062e852