[INFO] fetching crate simplers_optimization 0.4.1...
[INFO] checking simplers_optimization-0.4.1 against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] extracting crate simplers_optimization 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate simplers_optimization 0.4.1 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 simplers_optimization 0.4.1
[INFO] finished tweaking crates.io crate simplers_optimization 0.4.1
[INFO] tweaked toml for crates.io crate simplers_optimization 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate simplers_optimization 0.4.1 already has a lockfile, it will not be regenerated
[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-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" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2ce5bf12e27fea78adea5ec49f46a5bd55b6b67c33611de0e5a6acf7b587168
[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" "c2ce5bf12e27fea78adea5ec49f46a5bd55b6b67c33611de0e5a6acf7b587168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2ce5bf12e27fea78adea5ec49f46a5bd55b6b67c33611de0e5a6acf7b587168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ce5bf12e27fea78adea5ec49f46a5bd55b6b67c33611de0e5a6acf7b587168", kill_on_drop: false }`
[INFO] [stdout] c2ce5bf12e27fea78adea5ec49f46a5bd55b6b67c33611de0e5a6acf7b587168
[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" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6790e95ab11912644b6c57d29bbf78949e15ca994ce1de0f2e39acc31f0ad383
[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" "6790e95ab11912644b6c57d29bbf78949e15ca994ce1de0f2e39acc31f0ad383", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking priority-queue v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking simplers_optimization v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:19:83
[INFO] [stdout]    |
[INFO] [stdout] 19 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:44:83
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:19:83
[INFO] [stdout]    |
[INFO] [stdout] 19 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:44:83
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "6790e95ab11912644b6c57d29bbf78949e15ca994ce1de0f2e39acc31f0ad383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6790e95ab11912644b6c57d29bbf78949e15ca994ce1de0f2e39acc31f0ad383", kill_on_drop: false }`
[INFO] [stdout] 6790e95ab11912644b6c57d29bbf78949e15ca994ce1de0f2e39acc31f0ad383