[INFO] fetching crate os_utils 0.0.1...
[INFO] testing os_utils-0.0.1 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate os_utils 0.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate os_utils 0.0.1 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate os_utils 0.0.1
[INFO] finished tweaking crates.io crate os_utils 0.0.1
[INFO] tweaked toml for crates.io crate os_utils 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 215ba3edcc6c6881d097942e80a05b40d6140af8fa2969bdcf4a29d00aefc924
[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" "215ba3edcc6c6881d097942e80a05b40d6140af8fa2969bdcf4a29d00aefc924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "215ba3edcc6c6881d097942e80a05b40d6140af8fa2969bdcf4a29d00aefc924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "215ba3edcc6c6881d097942e80a05b40d6140af8fa2969bdcf4a29d00aefc924", kill_on_drop: false }`
[INFO] [stdout] 215ba3edcc6c6881d097942e80a05b40d6140af8fa2969bdcf4a29d00aefc924
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a4bbbff68c47b3b70e5bb739744ff7b9e0231fdcfb842dc402df39542185987
[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" "6a4bbbff68c47b3b70e5bb739744ff7b9e0231fdcfb842dc402df39542185987", kill_on_drop: false }`
[INFO] [stderr]    Compiling os_utils v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "6a4bbbff68c47b3b70e5bb739744ff7b9e0231fdcfb842dc402df39542185987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a4bbbff68c47b3b70e5bb739744ff7b9e0231fdcfb842dc402df39542185987", kill_on_drop: false }`
[INFO] [stdout] 6a4bbbff68c47b3b70e5bb739744ff7b9e0231fdcfb842dc402df39542185987
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738ea0c59fb6de2128534528ea5bbe43136dcd5be3a49f0d1a9b7c4ee4009c50
[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" "738ea0c59fb6de2128534528ea5bbe43136dcd5be3a49f0d1a9b7c4ee4009c50", kill_on_drop: false }`
[INFO] [stderr]    Compiling os_utils v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `info`
[INFO] [stdout]    --> src/info/mod.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let info = OsInfo::get();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "738ea0c59fb6de2128534528ea5bbe43136dcd5be3a49f0d1a9b7c4ee4009c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738ea0c59fb6de2128534528ea5bbe43136dcd5be3a49f0d1a9b7c4ee4009c50", kill_on_drop: false }`
[INFO] [stdout] 738ea0c59fb6de2128534528ea5bbe43136dcd5be3a49f0d1a9b7c4ee4009c50
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", 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] 18cf7efa3becb1d9ccc050a1605c15a615ef681da0a8b1ad3ccf7cf3483956e1
[INFO] running `Command { std: "docker" "start" "-a" "18cf7efa3becb1d9ccc050a1605c15a615ef681da0a8b1ad3ccf7cf3483956e1", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]    --> src/info/mod.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let info = OsInfo::get();
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/os_utils-4ca149bd3456faf7)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test info::os::linux::ubuntu::tests::cmp ... ok
[INFO] [stdout] test info::tests::get_os_info ... ok
[INFO] [stderr]    Doc-tests os_utils
[INFO] [stdout] test version::tests::cmp ... ok
[INFO] [stdout] test version::tests::parse_failure ... ok
[INFO] [stdout] test version::tests::parse_success ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "18cf7efa3becb1d9ccc050a1605c15a615ef681da0a8b1ad3ccf7cf3483956e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18cf7efa3becb1d9ccc050a1605c15a615ef681da0a8b1ad3ccf7cf3483956e1", kill_on_drop: false }`
[INFO] [stdout] 18cf7efa3becb1d9ccc050a1605c15a615ef681da0a8b1ad3ccf7cf3483956e1