[INFO] fetching crate sbnf 0.4.0...
[INFO] checking sbnf-0.4.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate sbnf 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sbnf 0.4.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sbnf 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sbnf 0.4.0
[INFO] tweaked toml for crates.io crate sbnf 0.4.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a9e93aaaef55fab686664af63e95186f786bc2fb3c6c27319452923f45f9298
[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" "3a9e93aaaef55fab686664af63e95186f786bc2fb3c6c27319452923f45f9298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a9e93aaaef55fab686664af63e95186f786bc2fb3c6c27319452923f45f9298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a9e93aaaef55fab686664af63e95186f786bc2fb3c6c27319452923f45f9298", kill_on_drop: false }`
[INFO] [stdout] 3a9e93aaaef55fab686664af63e95186f786bc2fb3c6c27319452923f45f9298
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 570a19ce6e87e1a7c37d07ae1928e911fddea01a5421bb147aef7b250a40b44f
[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" "570a19ce6e87e1a7c37d07ae1928e911fddea01a5421bb147aef7b250a40b44f", kill_on_drop: false }`
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking sbnf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]     --> src/compiler/codegen.rs:1388:9
[INFO] [stdout]      |
[INFO] [stdout] 1388 |         Variable(&'static str),
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `variable`
[INFO] [stdout]     --> src/compiler/codegen.rs:1437:8
[INFO] [stdout]      |
[INFO] [stdout] 1437 |     fn variable(s: &'static str) -> TestExpression {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `m_var`
[INFO] [stdout]     --> src/compiler/codegen.rs:1481:8
[INFO] [stdout]      |
[INFO] [stdout] 1481 |     fn m_var(s: &'static str, r: &[TestExpression]) -> TestMatch {
[INFO] [stdout]      |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "570a19ce6e87e1a7c37d07ae1928e911fddea01a5421bb147aef7b250a40b44f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "570a19ce6e87e1a7c37d07ae1928e911fddea01a5421bb147aef7b250a40b44f", kill_on_drop: false }`
[INFO] [stdout] 570a19ce6e87e1a7c37d07ae1928e911fddea01a5421bb147aef7b250a40b44f