[INFO] cloning repository https://github.com/LucioFranco/assets-benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LucioFranco/assets-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucioFranco%2Fassets-benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucioFranco%2Fassets-benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8262c1864a0bef122cd555f9cde8b6128f93b91f
[INFO] checking LucioFranco/assets-benchmark against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucioFranco%2Fassets-benchmark" "/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/LucioFranco/assets-benchmark on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LucioFranco/assets-benchmark
[INFO] finished tweaking git repo https://github.com/LucioFranco/assets-benchmark
[INFO] tweaked toml for git repo https://github.com/LucioFranco/assets-benchmark written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/LucioFranco/assets-benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49f6ef3c02b8dbaf0e2dcee8c43da26d5e7f2a1f3eec03c65680f00e6bb9dad1
[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" "49f6ef3c02b8dbaf0e2dcee8c43da26d5e7f2a1f3eec03c65680f00e6bb9dad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49f6ef3c02b8dbaf0e2dcee8c43da26d5e7f2a1f3eec03c65680f00e6bb9dad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f6ef3c02b8dbaf0e2dcee8c43da26d5e7f2a1f3eec03c65680f00e6bb9dad1", kill_on_drop: false }`
[INFO] [stdout] 49f6ef3c02b8dbaf0e2dcee8c43da26d5e7f2a1f3eec03c65680f00e6bb9dad1
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1f7fd57ffd8fff813070c5f9860547037c1b6b4e8b9c6dc93ab590a51840ebf
[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" "c1f7fd57ffd8fff813070c5f9860547037c1b6b4e8b9c6dc93ab590a51840ebf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.2
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking tokio-timer v0.2.8
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking crossbeam-deque v0.6.2
[INFO] [stderr]     Checking criterion-plot v0.2.5
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]     Checking memchr v2.1.1
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking criterion-stats v0.2.5
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking csv v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]     Checking handlebars v0.32.4
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking speedometer v0.2.2
[INFO] [stderr]     Checking assets-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_as_u128)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `assets-benchmark` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c1f7fd57ffd8fff813070c5f9860547037c1b6b4e8b9c6dc93ab590a51840ebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1f7fd57ffd8fff813070c5f9860547037c1b6b4e8b9c6dc93ab590a51840ebf", kill_on_drop: false }`
[INFO] [stdout] c1f7fd57ffd8fff813070c5f9860547037c1b6b4e8b9c6dc93ab590a51840ebf
