[INFO] fetching crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4...
[INFO] testing ffflaij23kap1p-crate-io-test-0.1.5-dev.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4
[INFO] finished tweaking crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4
[INFO] tweaked toml for crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a76a10e007b5d314e2dc41c8da6b88aa568faa430d5cac2ce50854038ec18d0e
[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" "a76a10e007b5d314e2dc41c8da6b88aa568faa430d5cac2ce50854038ec18d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a76a10e007b5d314e2dc41c8da6b88aa568faa430d5cac2ce50854038ec18d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76a10e007b5d314e2dc41c8da6b88aa568faa430d5cac2ce50854038ec18d0e", kill_on_drop: false }`
[INFO] [stdout] a76a10e007b5d314e2dc41c8da6b88aa568faa430d5cac2ce50854038ec18d0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e3587c09baa8ec81bd1c7cb9cd7e9fb9f8ff17887b6ea14fb1520426e8c968d
[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" "8e3587c09baa8ec81bd1c7cb9cd7e9fb9f8ff17887b6ea14fb1520426e8c968d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffflaij23kap1p-crate-io-test v0.1.5-dev.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn foo() {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "8e3587c09baa8ec81bd1c7cb9cd7e9fb9f8ff17887b6ea14fb1520426e8c968d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3587c09baa8ec81bd1c7cb9cd7e9fb9f8ff17887b6ea14fb1520426e8c968d", kill_on_drop: false }`
[INFO] [stdout] 8e3587c09baa8ec81bd1c7cb9cd7e9fb9f8ff17887b6ea14fb1520426e8c968d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c5ff12b7cbcdba92be795e4bd3c5b11ad99a085b89cf5fc8d06c5e549a10a85
[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" "4c5ff12b7cbcdba92be795e4bd3c5b11ad99a085b89cf5fc8d06c5e549a10a85", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffflaij23kap1p-crate-io-test v0.1.5-dev.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn foo() {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn foo() {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 1.01s
[INFO] running `Command { std: "docker" "inspect" "4c5ff12b7cbcdba92be795e4bd3c5b11ad99a085b89cf5fc8d06c5e549a10a85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c5ff12b7cbcdba92be795e4bd3c5b11ad99a085b89cf5fc8d06c5e549a10a85", kill_on_drop: false }`
[INFO] [stdout] 4c5ff12b7cbcdba92be795e4bd3c5b11ad99a085b89cf5fc8d06c5e549a10a85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b3a500fbacaaa6fa85f28d99cc8b2c0da96f3494943a3f57ae6b7da5273f6eed
[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" "b3a500fbacaaa6fa85f28d99cc8b2c0da96f3494943a3f57ae6b7da5273f6eed", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `foo`
[INFO] [stderr]  --> src/lib.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn foo() {
[INFO] [stderr]   |    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ffflaij23kap1p-crate-io-test` (lib) generated 1 warning
[INFO] [stderr] warning: `ffflaij23kap1p-crate-io-test` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ffflaij23kap1p_crate_io_test-fe502bffe65368b2)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ffflaij23kap1p_crate_io_test-73bfe21d1162122c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ffflaij23kap1p-crate-io-test
[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] [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" "b3a500fbacaaa6fa85f28d99cc8b2c0da96f3494943a3f57ae6b7da5273f6eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a500fbacaaa6fa85f28d99cc8b2c0da96f3494943a3f57ae6b7da5273f6eed", kill_on_drop: false }`
[INFO] [stdout] b3a500fbacaaa6fa85f28d99cc8b2c0da96f3494943a3f57ae6b7da5273f6eed