[INFO] fetching crate cotton 0.0.14...
[INFO] checking cotton-0.0.14 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate cotton 0.0.14 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cotton 0.0.14 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0f30d0e39051af5f6b64d4635ff684cb596bca2876c3ceac0b5050bdbf686af
[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" "e0f30d0e39051af5f6b64d4635ff684cb596bca2876c3ceac0b5050bdbf686af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0f30d0e39051af5f6b64d4635ff684cb596bca2876c3ceac0b5050bdbf686af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0f30d0e39051af5f6b64d4635ff684cb596bca2876c3ceac0b5050bdbf686af", kill_on_drop: false }`
[INFO] [stdout] e0f30d0e39051af5f6b64d4635ff684cb596bca2876c3ceac0b5050bdbf686af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] a185147ed3525699be8b5fc42e64624961405a33cc5ce652f6e5aa50d16c0698
[INFO] running `Command { std: "docker" "start" "-a" "a185147ed3525699be8b5fc42e64624961405a33cc5ce652f6e5aa50d16c0698", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking error-context v0.1.2
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking linked_hash_set v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking app_dirs2 v2.3.1
[INFO] [stderr]     Checking duct v0.13.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking exec v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking shaman v0.1.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.14.1
[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 43.62s
[INFO] running `Command { std: "docker" "inspect" "a185147ed3525699be8b5fc42e64624961405a33cc5ce652f6e5aa50d16c0698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a185147ed3525699be8b5fc42e64624961405a33cc5ce652f6e5aa50d16c0698", kill_on_drop: false }`
[INFO] [stdout] a185147ed3525699be8b5fc42e64624961405a33cc5ce652f6e5aa50d16c0698