[INFO] cloning repository https://github.com/arkaitzj/benchrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arkaitzj/benchrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkaitzj%2Fbenchrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkaitzj%2Fbenchrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de2c763b5c7a456ff34325d1a17e60ac1b251ddb
[INFO] checking arkaitzj/benchrs against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farkaitzj%2Fbenchrs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arkaitzj/benchrs on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arkaitzj/benchrs
[INFO] finished tweaking git repo https://github.com/arkaitzj/benchrs
[INFO] tweaked toml for git repo https://github.com/arkaitzj/benchrs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/arkaitzj/benchrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--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 simplelog v0.8.0
[INFO] [stderr]   Downloaded async-task v3.0.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.19
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.12
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.62
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.62
[INFO] [stderr]   Downloaded gloo-timers v0.2.1
[INFO] [stderr]   Downloaded smol v0.1.10
[INFO] [stderr]   Downloaded piper v0.1.2
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.15
[INFO] [stderr]   Downloaded crossbeam v0.7.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.15
[INFO] [stderr]   Downloaded async-native-tls v0.3.3
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.2
[INFO] [stderr]   Downloaded bumpalo v3.3.0
[INFO] [stderr]   Downloaded async-std v1.6.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.62
[INFO] [stderr]   Downloaded quote v1.0.6
[INFO] [stderr]   Downloaded pin-project-lite v0.1.5
[INFO] [stderr]   Downloaded js-sys v0.3.39
[INFO] [stderr]   Downloaded galvanic-test v0.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.62
[INFO] [stderr]   Downloaded syn v1.0.23
[INFO] [stderr]   Downloaded web-sys v0.3.39
[INFO] [stderr]   Downloaded mktemp v0.4.0
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded pin-project-internal v0.4.17
[INFO] [stderr]   Downloaded pin-project v0.4.17
[INFO] [stderr]   Downloaded wepoll-binding v2.0.1
[INFO] [stderr]   Downloaded scoped-tls-hkt v0.1.2
[INFO] [stderr]   Downloaded wepoll-sys v2.0.0
[INFO] [stderr]   Downloaded send_wrapper v0.4.0
[INFO] [stderr]   Downloaded futures-timer v3.0.2
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.62
[INFO] [stderr]   Downloaded openssl-sys v0.9.56
[INFO] [stderr]   Downloaded thiserror v1.0.19
[INFO] [stderr]   Downloaded hermit-abi v0.1.13
[INFO] [stderr]   Downloaded libc v0.2.70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f30e59e359af6559f67dfb6c239095d21883e48bbcb4d6fc6dc6ac152310e330
[INFO] running `Command { std: "docker" "start" "-a" "f30e59e359af6559f67dfb6c239095d21883e48bbcb4d6fc6dc6ac152310e330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f30e59e359af6559f67dfb6c239095d21883e48bbcb4d6fc6dc6ac152310e330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f30e59e359af6559f67dfb6c239095d21883e48bbcb4d6fc6dc6ac152310e330", kill_on_drop: false }`
[INFO] [stdout] f30e59e359af6559f67dfb6c239095d21883e48bbcb4d6fc6dc6ac152310e330
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 260cd6828751c69071e2879ff25d0a3dfae4b91bc94627ba4ea719c2a5e8135d
[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" "260cd6828751c69071e2879ff25d0a3dfae4b91bc94627ba4ea719c2a5e8135d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.15
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking galvanic-test v0.2.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking mktemp v0.4.0
[INFO] [stderr]     Checking simplelog v0.8.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking piper v0.1.2
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking smol v0.1.10
[INFO] [stderr]     Checking async-std v1.6.0
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking benchrs v0.1.8-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `Command { std: "docker" "inspect" "260cd6828751c69071e2879ff25d0a3dfae4b91bc94627ba4ea719c2a5e8135d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "260cd6828751c69071e2879ff25d0a3dfae4b91bc94627ba4ea719c2a5e8135d", kill_on_drop: false }`
[INFO] [stdout] 260cd6828751c69071e2879ff25d0a3dfae4b91bc94627ba4ea719c2a5e8135d