[INFO] fetching crate liberty-parse 0.1.0...
[INFO] checking liberty-parse-0.1.0 against beta for pr-78714
[INFO] extracting crate liberty-parse 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate liberty-parse 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate liberty-parse 0.1.0
[INFO] finished tweaking crates.io crate liberty-parse 0.1.0
[INFO] tweaked toml for crates.io crate liberty-parse 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate liberty-parse 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9710a097e9d171eded30b6e57176bae09f7c97cf4802785989826e6be5931993
[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" "9710a097e9d171eded30b6e57176bae09f7c97cf4802785989826e6be5931993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9710a097e9d171eded30b6e57176bae09f7c97cf4802785989826e6be5931993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9710a097e9d171eded30b6e57176bae09f7c97cf4802785989826e6be5931993", kill_on_drop: false }`
[INFO] [stdout] 9710a097e9d171eded30b6e57176bae09f7c97cf4802785989826e6be5931993
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 70a7b5b8bf2cb899e07629b8e87091d17279ce9e0eca1e2b5adeb27469270d7c
[INFO] running `Command { std: "docker" "start" "-a" "70a7b5b8bf2cb899e07629b8e87091d17279ce9e0eca1e2b5adeb27469270d7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling nom v5.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling stackvector v1.0.6
[INFO] [stderr]    Compiling lexical-core v0.4.2
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bstr v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking liberty-parse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.76s
[INFO] running `Command { std: "docker" "inspect" "70a7b5b8bf2cb899e07629b8e87091d17279ce9e0eca1e2b5adeb27469270d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a7b5b8bf2cb899e07629b8e87091d17279ce9e0eca1e2b5adeb27469270d7c", kill_on_drop: false }`
[INFO] [stdout] 70a7b5b8bf2cb899e07629b8e87091d17279ce9e0eca1e2b5adeb27469270d7c