[INFO] fetching crate tuple_storage 0.1.1... [INFO] checking tuple_storage-0.1.1 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174 [INFO] extracting crate tuple_storage 0.1.1 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate tuple_storage 0.1.1 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate tuple_storage 0.1.1 [INFO] finished tweaking crates.io crate tuple_storage 0.1.1 [INFO] tweaked toml for crates.io crate tuple_storage 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c325b2ad9cd1905d7a3121f2491a40b4886a861ccf6a062bd75c332e1b016661 [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" "c325b2ad9cd1905d7a3121f2491a40b4886a861ccf6a062bd75c332e1b016661", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c325b2ad9cd1905d7a3121f2491a40b4886a861ccf6a062bd75c332e1b016661", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c325b2ad9cd1905d7a3121f2491a40b4886a861ccf6a062bd75c332e1b016661", kill_on_drop: false }` [INFO] [stdout] c325b2ad9cd1905d7a3121f2491a40b4886a861ccf6a062bd75c332e1b016661 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] c2658d4565b894be098c803c16d7b81394b42ebca9f2d1657f51aed5d6f6f9c8 [INFO] running `Command { std: "docker" "start" "-a" "c2658d4565b894be098c803c16d7b81394b42ebca9f2d1657f51aed5d6f6f9c8", kill_on_drop: false }` [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking strsim v0.9.3 [INFO] [stderr] Checking thread_local v1.1.2 [INFO] [stderr] Checking memmap v0.6.2 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Checking rand_core v0.6.1 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Checking serde v1.0.123 [INFO] [stderr] Checking docopt v1.1.0 [INFO] [stderr] Checking tuple_storage v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:601:9 [INFO] [stdout] | [INFO] [stdout] 601 | std::fs::write(dir.path().join("demo.ts"), &blob).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:657:9 [INFO] [stdout] | [INFO] [stdout] 657 | std::fs::write(dir.path().join("demo.ts"), &blob).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:708:9 [INFO] [stdout] | [INFO] [stdout] 708 | std::fs::write(dir.path().join("demo.ts"), &blob).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.66s [INFO] running `Command { std: "docker" "inspect" "c2658d4565b894be098c803c16d7b81394b42ebca9f2d1657f51aed5d6f6f9c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2658d4565b894be098c803c16d7b81394b42ebca9f2d1657f51aed5d6f6f9c8", kill_on_drop: false }` [INFO] [stdout] c2658d4565b894be098c803c16d7b81394b42ebca9f2d1657f51aed5d6f6f9c8