[INFO] fetching crate dockerfile-parser 0.7.1...
[INFO] checking dockerfile-parser-0.7.1 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate dockerfile-parser 0.7.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dockerfile-parser 0.7.1 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dockerfile-parser 0.7.1
[INFO] finished tweaking crates.io crate dockerfile-parser 0.7.1
[INFO] tweaked toml for crates.io crate dockerfile-parser 0.7.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate dockerfile-parser 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.6.9
[INFO] [stderr]   Downloaded enquote v1.0.3
[INFO] [stderr]   Downloaded unindent v0.1.7
[INFO] [stderr]   Downloaded snafu v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ea28d2afef6681701152b07493e4c90c0d41a913189eb5053f7dbcbf6bac840
[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" "0ea28d2afef6681701152b07493e4c90c0d41a913189eb5053f7dbcbf6bac840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ea28d2afef6681701152b07493e4c90c0d41a913189eb5053f7dbcbf6bac840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ea28d2afef6681701152b07493e4c90c0d41a913189eb5053f7dbcbf6bac840", kill_on_drop: false }`
[INFO] [stdout] 0ea28d2afef6681701152b07493e4c90c0d41a913189eb5053f7dbcbf6bac840
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 243c7bb59ad945df8e4cda4689948c22b6dd50e7b14dbcc1b0a27cb142bae55a
[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" "243c7bb59ad945df8e4cda4689948c22b6dd50e7b14dbcc1b0a27cb142bae55a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]     Checking enquote v1.0.3
[INFO] [stderr]     Checking doc-comment v0.3.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling snafu-derive v0.6.9
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking snafu v0.6.9
[INFO] [stderr]     Checking dockerfile-parser v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.80s
[INFO] running `Command { std: "docker" "inspect" "243c7bb59ad945df8e4cda4689948c22b6dd50e7b14dbcc1b0a27cb142bae55a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "243c7bb59ad945df8e4cda4689948c22b6dd50e7b14dbcc1b0a27cb142bae55a", kill_on_drop: false }`
[INFO] [stdout] 243c7bb59ad945df8e4cda4689948c22b6dd50e7b14dbcc1b0a27cb142bae55a