[INFO] fetching crate pkgar 0.1.6...
[INFO] checking pkgar-0.1.6 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate pkgar 0.1.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate pkgar 0.1.6 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pkgar 0.1.6
[INFO] finished tweaking crates.io crate pkgar 0.1.6
[INFO] tweaked toml for crates.io crate pkgar 0.1.6 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate pkgar 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded index-fixed v0.3.0
[INFO] [stderr]   Downloaded sodalite v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11407e22731168c2ccb3ea87e585e0ffb1012ea1f5ce8971cc0a485a71b368c0
[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" "11407e22731168c2ccb3ea87e585e0ffb1012ea1f5ce8971cc0a485a71b368c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11407e22731168c2ccb3ea87e585e0ffb1012ea1f5ce8971cc0a485a71b368c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11407e22731168c2ccb3ea87e585e0ffb1012ea1f5ce8971cc0a485a71b368c0", kill_on_drop: false }`
[INFO] [stdout] 11407e22731168c2ccb3ea87e585e0ffb1012ea1f5ce8971cc0a485a71b368c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b59254377f25a85a65276190b550d0dbae28382ccb8c52b1731795d71720bed5
[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" "b59254377f25a85a65276190b550d0dbae28382ccb8c52b1731795d71720bed5", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking index-fixed v0.3.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling blake3 v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking sodalite v0.3.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking pkgar v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.68s
[INFO] running `Command { std: "docker" "inspect" "b59254377f25a85a65276190b550d0dbae28382ccb8c52b1731795d71720bed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b59254377f25a85a65276190b550d0dbae28382ccb8c52b1731795d71720bed5", kill_on_drop: false }`
[INFO] [stdout] b59254377f25a85a65276190b550d0dbae28382ccb8c52b1731795d71720bed5