[INFO] fetching crate resctl-bench 2.0.0...
[INFO] checking resctl-bench-2.0.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate resctl-bench 2.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate resctl-bench 2.0.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate resctl-bench 2.0.0
[INFO] finished tweaking crates.io crate resctl-bench 2.0.0
[INFO] tweaked toml for crates.io crate resctl-bench 2.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate resctl-bench 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linreg v0.2.0
[INFO] [stderr]   Downloaded statistical v1.0.0
[INFO] [stderr]   Downloaded resctl-bench-intf v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd5e6e3f0874f2ce822b3ddddfa1028639d0a5f09bbe7f444e713a33c6d568d3
[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" "dd5e6e3f0874f2ce822b3ddddfa1028639d0a5f09bbe7f444e713a33c6d568d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd5e6e3f0874f2ce822b3ddddfa1028639d0a5f09bbe7f444e713a33c6d568d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5e6e3f0874f2ce822b3ddddfa1028639d0a5f09bbe7f444e713a33c6d568d3", kill_on_drop: false }`
[INFO] [stdout] dd5e6e3f0874f2ce822b3ddddfa1028639d0a5f09bbe7f444e713a33c6d568d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fdc4c7ecb6761d38861c285f7669a7165f215956c1eda40e8232c809c4847ef
[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" "3fdc4c7ecb6761d38861c285f7669a7165f215956c1eda40e8232c809c4847ef", kill_on_drop: false }`
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[INFO] [stderr]     Checking failure v0.1.8
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[INFO] [stderr]    Compiling rustbus_derive v0.1.2
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[INFO] [stderr]     Checking rustbus v0.12.0
[INFO] [stderr]     Checking chrono v0.4.19
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[INFO] [stderr]    Compiling vergen v5.1.9
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[INFO] [stderr]    Compiling rd-util v2.0.0
[INFO] [stderr]     Checking rd-hashd-intf v2.0.0
[INFO] [stderr]     Checking rd-agent-intf v2.0.0
[INFO] [stderr]     Checking resctl-bench-intf v2.0.0
[INFO] [stderr]     Checking resctl-bench v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `JobData`, `MergeSrc`
[INFO] [stdout]    --> src/bench/iocost_tune/merge.rs:187:36
[INFO] [stdout]     |
[INFO] [stdout] 187 |     use super::{IoCostModelParams, JobData, MergeSrc};
[INFO] [stdout]     |                                    ^^^^^^^  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::bench::find_bench`
[INFO] [stdout]    --> src/bench/iocost_tune/merge.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |     use crate::bench::find_bench;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::job::SysInfo`
[INFO] [stdout]    --> src/bench/iocost_tune/merge.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |     use crate::job::SysInfo;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rd_agent_intf::IoCostModelReport`
[INFO] [stdout]    --> src/bench/iocost_tune/merge.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |     use rd_agent_intf::IoCostModelReport;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 11s
[INFO] running `Command { std: "docker" "inspect" "3fdc4c7ecb6761d38861c285f7669a7165f215956c1eda40e8232c809c4847ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fdc4c7ecb6761d38861c285f7669a7165f215956c1eda40e8232c809c4847ef", kill_on_drop: false }`
[INFO] [stdout] 3fdc4c7ecb6761d38861c285f7669a7165f215956c1eda40e8232c809c4847ef