[INFO] cloning repository https://github.com/anish-sinha1/symmetric-concurrent-v3 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anish-sinha1/symmetric-concurrent-v3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-sinha1%2Fsymmetric-concurrent-v3", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-sinha1%2Fsymmetric-concurrent-v3'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a345bc6ed960730c43e274c01dde098665fea645 [INFO] checking anish-sinha1/symmetric-concurrent-v3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-sinha1%2Fsymmetric-concurrent-v3" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 [INFO] finished tweaking git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 [INFO] tweaked toml for git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_bytes v0.11.7 [INFO] [stderr] Downloaded iana-time-zone v0.1.48 [INFO] [stderr] Downloaded serde_with_macros v2.0.1 [INFO] [stderr] Downloaded time v0.3.14 [INFO] [stderr] Downloaded serde_with v2.0.1 [INFO] [stderr] Downloaded positioned-io v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d18f50c5debf7aca8c2b6f57dbd117f3a497246455137c72f739dd0abd71d664 [INFO] running `Command { std: "docker" "start" "-a" "d18f50c5debf7aca8c2b6f57dbd117f3a497246455137c72f739dd0abd71d664", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d18f50c5debf7aca8c2b6f57dbd117f3a497246455137c72f739dd0abd71d664", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d18f50c5debf7aca8c2b6f57dbd117f3a497246455137c72f739dd0abd71d664", kill_on_drop: false }` [INFO] [stdout] d18f50c5debf7aca8c2b6f57dbd117f3a497246455137c72f739dd0abd71d664 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f45bb42a4bd09adb5fea98d778e5312104336e19910244caac2accb2f76c7807 [INFO] running `Command { std: "docker" "start" "-a" "f45bb42a4bd09adb5fea98d778e5312104336e19910244caac2accb2f76c7807", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.133 [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling unicode-ident v1.0.4 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling syn v1.0.100 [INFO] [stderr] Compiling crossbeam-utils v0.8.11 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Checking once_cell v1.15.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.10 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking smallvec v1.9.0 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking iana-time-zone v0.1.48 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking positioned-io v0.3.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking chrono v0.4.22 [INFO] [stderr] Compiling darling_core v0.14.1 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling darling_macro v0.14.1 [INFO] [stderr] Compiling darling v0.14.1 [INFO] [stderr] Compiling serde_with_macros v2.0.1 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking serde_with v2.0.1 [INFO] [stderr] Checking serde_bytes v0.11.7 [INFO] [stderr] Checking symmetric-concurrent-v3 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `page` [INFO] [stdout] --> src/storage/bufmgr.rs:77:13 [INFO] [stdout] | [INFO] [stdout] 77 | let page = Page::new(page_id, &page_buf); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_page` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/storage/diskmgr.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&DiskMgrInternal` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `page` [INFO] [stdout] --> src/storage/bufmgr.rs:77:13 [INFO] [stdout] | [INFO] [stdout] 77 | let page = Page::new(page_id, &page_buf); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_page` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/storage/diskmgr.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&diskmgr::DiskMgrInternal` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.74s [INFO] running `Command { std: "docker" "inspect" "f45bb42a4bd09adb5fea98d778e5312104336e19910244caac2accb2f76c7807", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f45bb42a4bd09adb5fea98d778e5312104336e19910244caac2accb2f76c7807", kill_on_drop: false }` [INFO] [stdout] f45bb42a4bd09adb5fea98d778e5312104336e19910244caac2accb2f76c7807 [INFO] checking anish-sinha1/symmetric-concurrent-v3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-sinha1%2Fsymmetric-concurrent-v3" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 [INFO] finished tweaking git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 [INFO] tweaked toml for git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/anish-sinha1/symmetric-concurrent-v3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 239ca465fe3480bbf340e7241ac079a5aa0e92cd3121f3785ce612ee31cde304 [INFO] running `Command { std: "docker" "start" "-a" "239ca465fe3480bbf340e7241ac079a5aa0e92cd3121f3785ce612ee31cde304", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "239ca465fe3480bbf340e7241ac079a5aa0e92cd3121f3785ce612ee31cde304", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "239ca465fe3480bbf340e7241ac079a5aa0e92cd3121f3785ce612ee31cde304", kill_on_drop: false }` [INFO] [stdout] 239ca465fe3480bbf340e7241ac079a5aa0e92cd3121f3785ce612ee31cde304 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ea1cab3997701b86dec8126065a6b6738b69a510dabd6371c86d132e70c934e3 [INFO] running `Command { std: "docker" "start" "-a" "ea1cab3997701b86dec8126065a6b6738b69a510dabd6371c86d132e70c934e3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling libc v0.2.133 [INFO] [stderr] Compiling unicode-ident v1.0.4 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling syn v1.0.100 [INFO] [stderr] Compiling crossbeam-utils v0.8.11 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Checking once_cell v1.15.0 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Compiling crossbeam-epoch v0.9.10 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking smallvec v1.9.0 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking iana-time-zone v0.1.48 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking positioned-io v0.3.0 [INFO] [stderr] Checking chrono v0.4.22 [INFO] [stderr] Compiling darling_core v0.14.1 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling darling_macro v0.14.1 [INFO] [stderr] Compiling darling v0.14.1 [INFO] [stderr] Compiling serde_with_macros v2.0.1 [INFO] [stderr] Checking serde_bytes v0.11.7 [INFO] [stderr] Checking serde_with v2.0.1 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking symmetric-concurrent-v3 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `page` [INFO] [stdout] --> src/storage/bufmgr.rs:77:13 [INFO] [stdout] | [INFO] [stdout] 77 | let page = Page::new(page_id, &page_buf); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_page` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/storage/diskmgr.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&diskmgr::DiskMgrInternal` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `page` [INFO] [stdout] --> src/storage/bufmgr.rs:77:13 [INFO] [stdout] | [INFO] [stdout] 77 | let page = Page::new(page_id, &page_buf); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_page` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/storage/diskmgr.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&DiskMgrInternal` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.01s [INFO] running `Command { std: "docker" "inspect" "ea1cab3997701b86dec8126065a6b6738b69a510dabd6371c86d132e70c934e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea1cab3997701b86dec8126065a6b6738b69a510dabd6371c86d132e70c934e3", kill_on_drop: false }` [INFO] [stdout] ea1cab3997701b86dec8126065a6b6738b69a510dabd6371c86d132e70c934e3