[INFO] fetching crate fpn 0.1.2...
[INFO] checking fpn-0.1.2 against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] extracting crate fpn 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fpn 0.1.2 on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fpn 0.1.2
[INFO] finished tweaking crates.io crate fpn 0.1.2
[INFO] tweaked toml for crates.io crate fpn 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 595968cbe4ac650b01512f6dc5c54b6ba4348cd23606dd896c2567953617f4c7
[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" "595968cbe4ac650b01512f6dc5c54b6ba4348cd23606dd896c2567953617f4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "595968cbe4ac650b01512f6dc5c54b6ba4348cd23606dd896c2567953617f4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "595968cbe4ac650b01512f6dc5c54b6ba4348cd23606dd896c2567953617f4c7", kill_on_drop: false }`
[INFO] [stdout] 595968cbe4ac650b01512f6dc5c54b6ba4348cd23606dd896c2567953617f4c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 741dae4c02ce8c74a63389b19984f40f06971d71898dc785b301f6576bf07aa3
[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" "741dae4c02ce8c74a63389b19984f40f06971d71898dc785b301f6576bf07aa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[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 fpn v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/base.rs:713:29
[INFO] [stdout]     |
[INFO] [stdout] 713 |                         let i = a.$m().to_f32();
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 722 |         test_tri!(sin, "sin", 0.05);
[INFO] [stdout]     |         ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/base.rs:713:29
[INFO] [stdout]     |
[INFO] [stdout] 713 |                         let i = a.$m().to_f32();
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 723 |         test_tri!(cos, "cos", 0.05);
[INFO] [stdout]     |         ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/base.rs:713:29
[INFO] [stdout]     |
[INFO] [stdout] 713 |                         let i = a.$m().to_f32();
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 724 |         test_tri!(tan, "tan", std::f32::MAX);
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "741dae4c02ce8c74a63389b19984f40f06971d71898dc785b301f6576bf07aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "741dae4c02ce8c74a63389b19984f40f06971d71898dc785b301f6576bf07aa3", kill_on_drop: false }`
[INFO] [stdout] 741dae4c02ce8c74a63389b19984f40f06971d71898dc785b301f6576bf07aa3