[INFO] fetching crate splr 0.4.1...
[INFO] checking splr-0.4.1 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate splr 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate splr 0.4.1 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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-3/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", 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] e7a8ea284487662fc0b2c1092e05a8d55cb3fc7454d40a5d28e68f488c1aee8c
[INFO] running `Command { std: "docker" "start" "-a" "e7a8ea284487662fc0b2c1092e05a8d55cb3fc7454d40a5d28e68f488c1aee8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7a8ea284487662fc0b2c1092e05a8d55cb3fc7454d40a5d28e68f488c1aee8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a8ea284487662fc0b2c1092e05a8d55cb3fc7454d40a5d28e68f488c1aee8c", kill_on_drop: false }`
[INFO] [stdout] e7a8ea284487662fc0b2c1092e05a8d55cb3fc7454d40a5d28e68f488c1aee8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8577d38b61cdf4a87016389de18645c1c0a6002434b4d5ff7a76c77ce1b9ab2e
[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" "8577d38b61cdf4a87016389de18645c1c0a6002434b4d5ff7a76c77ce1b9ab2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[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 4.28s
[INFO] running `Command { std: "docker" "inspect" "8577d38b61cdf4a87016389de18645c1c0a6002434b4d5ff7a76c77ce1b9ab2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8577d38b61cdf4a87016389de18645c1c0a6002434b4d5ff7a76c77ce1b9ab2e", kill_on_drop: false }`
[INFO] [stdout] 8577d38b61cdf4a87016389de18645c1c0a6002434b4d5ff7a76c77ce1b9ab2e