[INFO] fetching crate impl_ops 0.1.1...
[INFO] checking impl_ops-0.1.1 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] extracting crate impl_ops 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate impl_ops 0.1.1 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate impl_ops 0.1.1
[INFO] finished tweaking crates.io crate impl_ops 0.1.1
[INFO] tweaked toml for crates.io crate impl_ops 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dac0c9280d0fce589b61f1c2f1ad50adcd5efb84fe80922593d8cfd832433071
[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" "dac0c9280d0fce589b61f1c2f1ad50adcd5efb84fe80922593d8cfd832433071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dac0c9280d0fce589b61f1c2f1ad50adcd5efb84fe80922593d8cfd832433071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dac0c9280d0fce589b61f1c2f1ad50adcd5efb84fe80922593d8cfd832433071", kill_on_drop: false }`
[INFO] [stdout] dac0c9280d0fce589b61f1c2f1ad50adcd5efb84fe80922593d8cfd832433071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7670b5095c486ee4d4dcc2fcc2ba39d877d1561d126681eb02e52b7cfeb1f098
[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" "7670b5095c486ee4d4dcc2fcc2ba39d877d1561d126681eb02e52b7cfeb1f098", kill_on_drop: false }`
[INFO] [stderr]     Checking impl_ops v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: glob import doesn't reexport anything because no candidate is public enough
[INFO] [stdout]   --> tests/assignment.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub use super::*;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: glob import doesn't reexport anything because no candidate is public enough
[INFO] [stdout]    --> tests/assignment.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub use super::*;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: glob import doesn't reexport anything because no candidate is public enough
[INFO] [stdout]    --> tests/assignment.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |     pub use super::*;
[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 1.08s
[INFO] running `Command { std: "docker" "inspect" "7670b5095c486ee4d4dcc2fcc2ba39d877d1561d126681eb02e52b7cfeb1f098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7670b5095c486ee4d4dcc2fcc2ba39d877d1561d126681eb02e52b7cfeb1f098", kill_on_drop: false }`
[INFO] [stdout] 7670b5095c486ee4d4dcc2fcc2ba39d877d1561d126681eb02e52b7cfeb1f098