[INFO] fetching crate core_extensions 1.4.2...
[INFO] building core_extensions-1.4.2 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate core_extensions 1.4.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate core_extensions 1.4.2 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core_extensions 1.4.2
[INFO] finished tweaking crates.io crate core_extensions 1.4.2
[INFO] tweaked toml for crates.io crate core_extensions 1.4.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded core_extensions_proc_macros v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14e37fab6f5753a92ac1d1695039953252443d35c234cdf8b5b1e6658fda2841
[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" "14e37fab6f5753a92ac1d1695039953252443d35c234cdf8b5b1e6658fda2841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14e37fab6f5753a92ac1d1695039953252443d35c234cdf8b5b1e6658fda2841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e37fab6f5753a92ac1d1695039953252443d35c234cdf8b5b1e6658fda2841", kill_on_drop: false }`
[INFO] [stdout] 14e37fab6f5753a92ac1d1695039953252443d35c234cdf8b5b1e6658fda2841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c0af24963fc5749d890aecd7b301f2a7500673e0952ee2a6dfa17bb8b91cd59
[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" "4c0af24963fc5749d890aecd7b301f2a7500673e0952ee2a6dfa17bb8b91cd59", kill_on_drop: false }`
[INFO] [stderr]    Compiling core_extensions v1.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "4c0af24963fc5749d890aecd7b301f2a7500673e0952ee2a6dfa17bb8b91cd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c0af24963fc5749d890aecd7b301f2a7500673e0952ee2a6dfa17bb8b91cd59", kill_on_drop: false }`
[INFO] [stdout] 4c0af24963fc5749d890aecd7b301f2a7500673e0952ee2a6dfa17bb8b91cd59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d5cd845ef9532c397c1c0e5108cda761bc13b1f4db2881a196817d0d8039801
[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" "0d5cd845ef9532c397c1c0e5108cda761bc13b1f4db2881a196817d0d8039801", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (75b84863966839e5, 8a92c743b00988cf), 0, 0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr] SG_CR_Eslkdjf: rand, (d5015a8c02ff7118, e70836707da39dad), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (c33e8228ef4d3b95, 2d6ca4bd92c47071), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (73a6793981df500, 9ea7a0df690467a7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (d8ff2f552621b1e1, a17a7748711039ba), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (4d455adf532d9672, 8a28634982653bd8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (ed75b5e2f3665aa2, 4385f707973d3e6f), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (b6582aa9c9db04c2, 7aa5d671fc00c41d), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (6a201950bd958b83, 83144e08ef857ffe), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (f4edb901cfa4bf68, aebc79b4281ce138), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (f4cc936fabde326d, 2e5a3fa686e06f95), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (430a73cb6571950c, 8fca9879845359c1), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (33973f3323b2d6c4, 61730fb1bf00dec8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (244767cfee9aefe0, 1ac66c687f40fdbf), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (893aa53486a55c7, dfa264df2657b3a9), 0, 0
[INFO] [stderr]    Compiling core_extensions v1.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src_core_extensions/test_utils.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn new(max: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clone_count`
[INFO] [stdout]   --> src_core_extensions/test_utils.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn clone_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `drop_count`
[INFO] [stdout]   --> src_core_extensions/test_utils.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn drop_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: core_extensions, (46748a9f6f34fd25, ebf58d11a4910080), 0, 0
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "0d5cd845ef9532c397c1c0e5108cda761bc13b1f4db2881a196817d0d8039801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5cd845ef9532c397c1c0e5108cda761bc13b1f4db2881a196817d0d8039801", kill_on_drop: false }`
[INFO] [stdout] 0d5cd845ef9532c397c1c0e5108cda761bc13b1f4db2881a196817d0d8039801