[INFO] fetching crate flexlint 0.2.6...
[INFO] checking flexlint-0.2.6 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate flexlint 0.2.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate flexlint 0.2.6 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flexlint 0.2.6
[INFO] finished tweaking crates.io crate flexlint 0.2.6
[INFO] tweaked toml for crates.io crate flexlint 0.2.6 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate flexlint 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c32500bfb448cb3e9281f242b8fc7f58883a27f612bc902efb820e4231250007
[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" "c32500bfb448cb3e9281f242b8fc7f58883a27f612bc902efb820e4231250007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c32500bfb448cb3e9281f242b8fc7f58883a27f612bc902efb820e4231250007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32500bfb448cb3e9281f242b8fc7f58883a27f612bc902efb820e4231250007", kill_on_drop: false }`
[INFO] [stdout] c32500bfb448cb3e9281f242b8fc7f58883a27f612bc902efb820e4231250007
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d443c852d09d594ce3af2b9297e5b55933509aaa8a54964f4d2e32670cdbb8eb
[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" "d443c852d09d594ce3af2b9297e5b55933509aaa8a54964f4d2e32670cdbb8eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.1
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking flexlint v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.64s
[INFO] running `Command { std: "docker" "inspect" "d443c852d09d594ce3af2b9297e5b55933509aaa8a54964f4d2e32670cdbb8eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d443c852d09d594ce3af2b9297e5b55933509aaa8a54964f4d2e32670cdbb8eb", kill_on_drop: false }`
[INFO] [stdout] d443c852d09d594ce3af2b9297e5b55933509aaa8a54964f4d2e32670cdbb8eb