[INFO] fetching crate hex2d 0.2.0...
[INFO] checking hex2d-0.2.0 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate hex2d 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate hex2d 0.2.0 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hex2d 0.2.0
[INFO] finished tweaking crates.io crate hex2d 0.2.0
[INFO] tweaked toml for crates.io crate hex2d 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a655533f1053efa6355aa54a9fdb93fe90f182091a14d50a83803754c3c586b1
[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" "a655533f1053efa6355aa54a9fdb93fe90f182091a14d50a83803754c3c586b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a655533f1053efa6355aa54a9fdb93fe90f182091a14d50a83803754c3c586b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a655533f1053efa6355aa54a9fdb93fe90f182091a14d50a83803754c3c586b1", kill_on_drop: false }`
[INFO] [stdout] a655533f1053efa6355aa54a9fdb93fe90f182091a14d50a83803754c3c586b1
[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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] a15bbb3ad49bc7b266a0e3662c7100ef6ad051ac8e0822e5c101e51051562ef4
[INFO] running `Command { std: "docker" "start" "-a" "a15bbb3ad49bc7b266a0e3662c7100ef6ad051ac8e0822e5c101e51051562ef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking hex2d v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::Spacing::*`
[INFO] [stdout]  --> src/test.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::Spacing::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Float`
[INFO] [stdout]   --> src/lib.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 | use num::{Float, One, Zero};
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Float`
[INFO] [stdout]   --> src/lib.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 | use num::{Float, One, Zero};
[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 6.44s
[INFO] running `Command { std: "docker" "inspect" "a15bbb3ad49bc7b266a0e3662c7100ef6ad051ac8e0822e5c101e51051562ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a15bbb3ad49bc7b266a0e3662c7100ef6ad051ac8e0822e5c101e51051562ef4", kill_on_drop: false }`
[INFO] [stdout] a15bbb3ad49bc7b266a0e3662c7100ef6ad051ac8e0822e5c101e51051562ef4