[INFO] fetching crate splr 0.4.1...
[INFO] checking splr-0.4.1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate splr 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate splr 0.4.1 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate splr 0.4.1
[INFO] finished tweaking crates.io crate splr 0.4.1
[INFO] tweaked toml for crates.io crate splr 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate splr 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb8c0705cfde305e18e6129d6b5f7d7d2ef77790ab8fecc20c5689400ba1ecb7
[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" "cb8c0705cfde305e18e6129d6b5f7d7d2ef77790ab8fecc20c5689400ba1ecb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb8c0705cfde305e18e6129d6b5f7d7d2ef77790ab8fecc20c5689400ba1ecb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb8c0705cfde305e18e6129d6b5f7d7d2ef77790ab8fecc20c5689400ba1ecb7", kill_on_drop: false }`
[INFO] [stdout] cb8c0705cfde305e18e6129d6b5f7d7d2ef77790ab8fecc20c5689400ba1ecb7
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 656cbba0c4b0f2f0fa86b46ba6ba5dc8313072b67ba1970b9857f69faabd097e
[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" "656cbba0c4b0f2f0fa86b46ba6ba5dc8313072b67ba1970b9857f69faabd097e", kill_on_drop: false }`
[INFO] [stderr]     Checking splr v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `splr::*`
[INFO] [stdout]  --> tests/isat2.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use splr::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `convert::TryFrom`, `env::args`
[INFO] [stdout]  --> tests/isat2.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{convert::TryFrom, env::args};
[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 2.19s
[INFO] running `Command { std: "docker" "inspect" "656cbba0c4b0f2f0fa86b46ba6ba5dc8313072b67ba1970b9857f69faabd097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "656cbba0c4b0f2f0fa86b46ba6ba5dc8313072b67ba1970b9857f69faabd097e", kill_on_drop: false }`
[INFO] [stdout] 656cbba0c4b0f2f0fa86b46ba6ba5dc8313072b67ba1970b9857f69faabd097e