[INFO] fetching crate cotton 0.0.14...
[INFO] checking cotton-0.0.14 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] extracting crate cotton 0.0.14 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cotton 0.0.14 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cotton 0.0.14
[INFO] finished tweaking crates.io crate cotton 0.0.14
[INFO] tweaked toml for crates.io crate cotton 0.0.14 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded problem v5.3.0
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded error-context v0.1.2
[INFO] [stderr]   Downloaded exec v0.3.1
[INFO] [stderr]   Downloaded duct v0.13.5
[INFO] [stderr]   Downloaded shaman v0.1.0
[INFO] [stderr]   Downloaded app_dirs2 v2.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+4a23c45c7893f1416456144e3883cc48ea91722e" "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] 964b3d583ce60e7c0913c6ad5dd4f3584c5f53b7451f7c681ded8ba72322a1cf
[INFO] running `Command { std: "docker" "start" "-a" "964b3d583ce60e7c0913c6ad5dd4f3584c5f53b7451f7c681ded8ba72322a1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "964b3d583ce60e7c0913c6ad5dd4f3584c5f53b7451f7c681ded8ba72322a1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964b3d583ce60e7c0913c6ad5dd4f3584c5f53b7451f7c681ded8ba72322a1cf", kill_on_drop: false }`
[INFO] [stdout] 964b3d583ce60e7c0913c6ad5dd4f3584c5f53b7451f7c681ded8ba72322a1cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48d5c53899f328947ab41da34e687e5de34bfc79c3ae9fba1cf0c9bb8fe7691a
[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" "48d5c53899f328947ab41da34e687e5de34bfc79c3ae9fba1cf0c9bb8fe7691a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking error-context v0.1.2
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking linked_hash_set v0.1.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking app_dirs2 v2.3.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking exec v0.3.1
[INFO] [stderr]     Checking duct v0.13.5
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking shaman v0.1.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking problem v5.3.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking cotton v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.33s
[INFO] running `Command { std: "docker" "inspect" "48d5c53899f328947ab41da34e687e5de34bfc79c3ae9fba1cf0c9bb8fe7691a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48d5c53899f328947ab41da34e687e5de34bfc79c3ae9fba1cf0c9bb8fe7691a", kill_on_drop: false }`
[INFO] [stdout] 48d5c53899f328947ab41da34e687e5de34bfc79c3ae9fba1cf0c9bb8fe7691a