[INFO] fetching crate rsrl_domains 0.2.0...
[INFO] checking rsrl_domains-0.2.0 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] extracting crate rsrl_domains 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rsrl_domains 0.2.0
[INFO] finished tweaking crates.io crate rsrl_domains 0.2.0
[INFO] tweaked toml for crates.io crate rsrl_domains 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsrl_domains 0.2.0 on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding cpython v0.3.0 (available: v0.7.2)
[INFO] [stderr]       Adding ndarray v0.12.1 (available: v0.17.2)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.2)
[INFO] [stderr]       Adding spaces v5.0.0 (available: v6.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray v0.12.1
[INFO] [stderr]   Downloaded python3-sys v0.3.0
[INFO] [stderr]   Downloaded cpython v0.3.0
[INFO] [stderr]   Downloaded spaces v5.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da
[INFO] running `Command { std: "docker" "start" "04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking spaces v5.0.0
[INFO] [stderr]     Checking rsrl_domains v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:326:33
[INFO] [stdout]     |
[INFO] [stdout] 326 |                 action: t.action.clone(),
[INFO] [stdout]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Clone`, so calling `clone` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/cart_pole.rs:147:18
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let (ns, r) = m.step(&0);
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `G`
[INFO] [stdout]     |
[INFO] [stdout] 147 -         let (ns, r) = m.step(&0);
[INFO] [stdout] 147 +         let (ns, consts::G) = m.step(&0);
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 147 |         let (ns, _r) = m.step(&0);
[INFO] [stdout]     |                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/cart_pole.rs:155:18
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let (ns, r) = m.step(&0);
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `G`
[INFO] [stdout]     |
[INFO] [stdout] 155 -         let (ns, r) = m.step(&0);
[INFO] [stdout] 155 +         let (ns, consts::G) = m.step(&0);
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let (ns, _r) = m.step(&0);
[INFO] [stdout]     |                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/cart_pole.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout] 168 |         let (ns, r) = m.step(&1);
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `G`
[INFO] [stdout]     |
[INFO] [stdout] 168 -         let (ns, r) = m.step(&1);
[INFO] [stdout] 168 +         let (ns, consts::G) = m.step(&1);
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 168 |         let (ns, _r) = m.step(&1);
[INFO] [stdout]     |                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/cart_pole.rs:176:18
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let (ns, r) = m.step(&1);
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `G`
[INFO] [stdout]     |
[INFO] [stdout] 176 -         let (ns, r) = m.step(&1);
[INFO] [stdout] 176 +         let (ns, consts::G) = m.step(&1);
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let (ns, _r) = m.step(&1);
[INFO] [stdout]     |                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:326:33
[INFO] [stdout]     |
[INFO] [stdout] 326 |                 action: t.action.clone(),
[INFO] [stdout]     |                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `A` does not implement `Clone`, so calling `clone` on `&A` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.61s
[INFO] running `Command { std: "docker" "inspect" "04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da", kill_on_drop: false }`
[INFO] [stdout] 04d6d5d57495e366fb12bca52640aa019dfe0182e54138442b4c5fbe5e2c39da
