[INFO] fetching crate data_vault 0.2.0...
[INFO] checking data_vault-0.2.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate data_vault 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate data_vault 0.2.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate data_vault 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate data_vault 0.2.0
[INFO] tweaked toml for crates.io crate data_vault 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate data_vault 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89da3085e88e47dd726e3a808bd7fcf0adcd0dcbf1f7a2ceff82f2fd6c5a4247
[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" "89da3085e88e47dd726e3a808bd7fcf0adcd0dcbf1f7a2ceff82f2fd6c5a4247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89da3085e88e47dd726e3a808bd7fcf0adcd0dcbf1f7a2ceff82f2fd6c5a4247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89da3085e88e47dd726e3a808bd7fcf0adcd0dcbf1f7a2ceff82f2fd6c5a4247", kill_on_drop: false }`
[INFO] [stdout] 89da3085e88e47dd726e3a808bd7fcf0adcd0dcbf1f7a2ceff82f2fd6c5a4247
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0d96c708afeac85992158f9144e7db1d0b79694720496eea76319116ed7edcf
[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" "c0d96c708afeac85992158f9144e7db1d0b79694720496eea76319116ed7edcf", kill_on_drop: false }`
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[INFO] [stderr]     Checking data_vault v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `criterion_store_credit_card`
[INFO] [stdout]   --> benches/data_vault_benchmark.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn criterion_store_credit_card(c: &mut Criterion) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `criterion_retrieve_credit_card`
[INFO] [stdout]   --> benches/data_vault_benchmark.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn criterion_retrieve_credit_card(c: &mut Criterion) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 58s
[INFO] running `Command { std: "docker" "inspect" "c0d96c708afeac85992158f9144e7db1d0b79694720496eea76319116ed7edcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d96c708afeac85992158f9144e7db1d0b79694720496eea76319116ed7edcf", kill_on_drop: false }`
[INFO] [stdout] c0d96c708afeac85992158f9144e7db1d0b79694720496eea76319116ed7edcf