[INFO] fetching crate oars 2.1.1...
[INFO] checking oars-2.1.1 against beta for pr-78714
[INFO] extracting crate oars 2.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate oars 2.1.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oars 2.1.1
[INFO] finished tweaking crates.io crate oars 2.1.1
[INFO] tweaked toml for crates.io crate oars 2.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac6daa5ad57ed87c6fce224318105d517a541aea2491ac3d4f783e21b647ab78
[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" "ac6daa5ad57ed87c6fce224318105d517a541aea2491ac3d4f783e21b647ab78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac6daa5ad57ed87c6fce224318105d517a541aea2491ac3d4f783e21b647ab78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6daa5ad57ed87c6fce224318105d517a541aea2491ac3d4f783e21b647ab78", kill_on_drop: false }`
[INFO] [stdout] ac6daa5ad57ed87c6fce224318105d517a541aea2491ac3d4f783e21b647ab78
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfde0ecbfbc5891d20ee273cafe7a310fdccd414301018008bcd070d1617f9d8
[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" "dfde0ecbfbc5891d20ee273cafe7a310fdccd414301018008bcd070d1617f9d8", kill_on_drop: false }`
[INFO] [stderr]     Checking primes v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling oars_proc_macro v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking num-bigint v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking ndarray v0.13.1
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking oars v2.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: unused import: `oars_proc_macro::Checked`
[INFO] [stdout]   --> src/soa.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use oars_proc_macro::Checked;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oars_proc_macro::Checked`
[INFO] [stdout]   --> src/soa.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use oars_proc_macro::Checked;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` 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 25.52s
[INFO] running `Command { std: "docker" "inspect" "dfde0ecbfbc5891d20ee273cafe7a310fdccd414301018008bcd070d1617f9d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfde0ecbfbc5891d20ee273cafe7a310fdccd414301018008bcd070d1617f9d8", kill_on_drop: false }`
[INFO] [stdout] dfde0ecbfbc5891d20ee273cafe7a310fdccd414301018008bcd070d1617f9d8