[INFO] crate leaky-cow 0.1.1 is already in cache
[INFO] testing leaky-cow-0.1.1 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate leaky-cow 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate leaky-cow 0.1.1 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate leaky-cow 0.1.1
[INFO] finished tweaking crates.io crate leaky-cow 0.1.1
[INFO] tweaked toml for crates.io crate leaky-cow 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8253af3ed9c36fd8f67198f357f1d45c61559d6bbb9ac6a4b833d57bf899dd0f
[INFO] running `"docker" "start" "-a" "8253af3ed9c36fd8f67198f357f1d45c61559d6bbb9ac6a4b833d57bf899dd0f"`
[INFO] [stderr]    Compiling leak v0.1.2
[INFO] [stderr]    Compiling leaky-cow v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/lib.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::{Borrow, Cow, ToOwned};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "8253af3ed9c36fd8f67198f357f1d45c61559d6bbb9ac6a4b833d57bf899dd0f"`
[INFO] running `"docker" "rm" "-f" "8253af3ed9c36fd8f67198f357f1d45c61559d6bbb9ac6a4b833d57bf899dd0f"`
[INFO] [stdout] 8253af3ed9c36fd8f67198f357f1d45c61559d6bbb9ac6a4b833d57bf899dd0f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 430a2f5c0b5f99b9930c5e8066d0658134d9e91516803608b847be84e279f3e9
[INFO] running `"docker" "start" "-a" "430a2f5c0b5f99b9930c5e8066d0658134d9e91516803608b847be84e279f3e9"`
[INFO] [stderr]    Compiling leaky-cow v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/lib.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::{Borrow, Cow, ToOwned};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/lib.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::{Borrow, Cow, ToOwned};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "430a2f5c0b5f99b9930c5e8066d0658134d9e91516803608b847be84e279f3e9"`
[INFO] running `"docker" "rm" "-f" "430a2f5c0b5f99b9930c5e8066d0658134d9e91516803608b847be84e279f3e9"`
[INFO] [stdout] 430a2f5c0b5f99b9930c5e8066d0658134d9e91516803608b847be84e279f3e9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 568846ab254ede8f4002a3530c6b7b63f4ceaca1fa2ec904a2d574143441471f
[INFO] running `"docker" "start" "-a" "568846ab254ede8f4002a3530c6b7b63f4ceaca1fa2ec904a2d574143441471f"`
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/lib.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::{Borrow, Cow, ToOwned};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/lib.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::{Borrow, Cow, ToOwned};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leaky_cow-fee291984bbc26df
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests leaky-cow
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "568846ab254ede8f4002a3530c6b7b63f4ceaca1fa2ec904a2d574143441471f"`
[INFO] running `"docker" "rm" "-f" "568846ab254ede8f4002a3530c6b7b63f4ceaca1fa2ec904a2d574143441471f"`
[INFO] [stdout] 568846ab254ede8f4002a3530c6b7b63f4ceaca1fa2ec904a2d574143441471f