[INFO] cloning repository https://github.com/leo60228/perf-checkup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leo60228/perf-checkup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fperf-checkup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fperf-checkup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14bedc7b501e5e4b91e9b053465cdc92114a886e
[INFO] checking leo60228/perf-checkup against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fperf-checkup" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leo60228/perf-checkup on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leo60228/perf-checkup
[INFO] finished tweaking git repo https://github.com/leo60228/perf-checkup
[INFO] tweaked toml for git repo https://github.com/leo60228/perf-checkup written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/leo60228/perf-checkup already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23128201ae1a090aeeaba4fee6396530ec82c448a7488d09d6d29b1e7d6f6e58
[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" "23128201ae1a090aeeaba4fee6396530ec82c448a7488d09d6d29b1e7d6f6e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23128201ae1a090aeeaba4fee6396530ec82c448a7488d09d6d29b1e7d6f6e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23128201ae1a090aeeaba4fee6396530ec82c448a7488d09d6d29b1e7d6f6e58", kill_on_drop: false }`
[INFO] [stdout] 23128201ae1a090aeeaba4fee6396530ec82c448a7488d09d6d29b1e7d6f6e58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5ae2486c135543395ef6acd33db816c412e102b6f7b8c7c3228d9a924007520
[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" "d5ae2486c135543395ef6acd33db816c412e102b6f7b8c7c3228d9a924007520", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling heim-common v0.0.5
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling spin v0.5.1
[INFO] [stderr]    Compiling heim-host v0.0.5
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking macaddr v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking platforms v0.2.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling libdbus-sys v0.2.0
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.1
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking tokio-current-thread v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]     Checking notify-rust v3.6.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.1
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking tokio-reactor v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-threadpool v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.1
[INFO] [stderr]     Checking tokio-tcp v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-uds v0.3.0-alpha.1
[INFO] [stderr]     Checking tokio-udp v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.1
[INFO] [stderr]    Compiling heim-derive v0.0.5
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.1
[INFO] [stderr]    Compiling snafu-derive v0.4.3
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]     Checking tokio v0.2.0-alpha.1
[INFO] [stderr]     Checking snafu v0.4.3
[INFO] [stderr]     Checking heim-cpu v0.0.5
[INFO] [stderr]     Checking heim-disk v0.0.5
[INFO] [stderr]     Checking heim-process v0.0.5
[INFO] [stderr]     Checking heim-net v0.0.5
[INFO] [stderr]     Checking heim-memory v0.0.5
[INFO] [stderr]     Checking heim-virt v0.0.5
[INFO] [stderr]     Checking heim v0.0.5
[INFO] [stderr]     Checking perf-checkup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` 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 1m 37s
[INFO] running `Command { std: "docker" "inspect" "d5ae2486c135543395ef6acd33db816c412e102b6f7b8c7c3228d9a924007520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5ae2486c135543395ef6acd33db816c412e102b6f7b8c7c3228d9a924007520", kill_on_drop: false }`
[INFO] [stdout] d5ae2486c135543395ef6acd33db816c412e102b6f7b8c7c3228d9a924007520