[INFO] fetching crate scotty 0.3.4...
[INFO] checking scotty-0.3.4 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate scotty 0.3.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate scotty 0.3.4 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scotty 0.3.4
[INFO] finished tweaking crates.io crate scotty 0.3.4
[INFO] tweaked toml for crates.io crate scotty 0.3.4 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate scotty 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", 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] 3951a0886bcc1d687e572cc69725b87e0d46fabfed5e3f8f0abe0dc10b7fcf62
[INFO] running `Command { std: "docker" "start" "-a" "3951a0886bcc1d687e572cc69725b87e0d46fabfed5e3f8f0abe0dc10b7fcf62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3951a0886bcc1d687e572cc69725b87e0d46fabfed5e3f8f0abe0dc10b7fcf62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3951a0886bcc1d687e572cc69725b87e0d46fabfed5e3f8f0abe0dc10b7fcf62", kill_on_drop: false }`
[INFO] [stdout] 3951a0886bcc1d687e572cc69725b87e0d46fabfed5e3f8f0abe0dc10b7fcf62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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] 4c6f071091e3633f8b7f5689242950538cae11f188fab78de8942fc922d08633
[INFO] running `Command { std: "docker" "start" "-a" "4c6f071091e3633f8b7f5689242950538cae11f188fab78de8942fc922d08633", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking thread_local v1.0.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking getrandom v0.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking directories v3.0.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking rand v0.8.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking scotty v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "4c6f071091e3633f8b7f5689242950538cae11f188fab78de8942fc922d08633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6f071091e3633f8b7f5689242950538cae11f188fab78de8942fc922d08633", kill_on_drop: false }`
[INFO] [stdout] 4c6f071091e3633f8b7f5689242950538cae11f188fab78de8942fc922d08633