[INFO] fetching crate cotton 0.0.16...
[INFO] checking cotton-0.0.16 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate cotton 0.0.16 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cotton 0.0.16 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cotton 0.0.16
[INFO] finished tweaking crates.io crate cotton 0.0.16
[INFO] tweaked toml for crates.io crate cotton 0.0.16 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 765927e8c2f18fb5aed2adf2159d421b03b578beb46e13465e76633ea87578a8
[INFO] running `Command { std: "docker" "start" "-a" "765927e8c2f18fb5aed2adf2159d421b03b578beb46e13465e76633ea87578a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "765927e8c2f18fb5aed2adf2159d421b03b578beb46e13465e76633ea87578a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765927e8c2f18fb5aed2adf2159d421b03b578beb46e13465e76633ea87578a8", kill_on_drop: false }`
[INFO] [stdout] 765927e8c2f18fb5aed2adf2159d421b03b578beb46e13465e76633ea87578a8
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87922cbd396a961645ab8add40514989cc1e962049e8b27eebf907b568af8517
[INFO] running `Command { std: "docker" "start" "-a" "87922cbd396a961645ab8add40514989cc1e962049e8b27eebf907b568af8517", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking error-context v0.1.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking linked_hash_set v0.1.4
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking app_dirs2 v2.3.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking object v0.25.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking shared_child v0.3.5
[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 file-mode v0.1.2
[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 chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking uninterruptible v0.1.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking shaman v0.1.0
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking backtrace v0.3.60
[INFO] [stderr]     Checking problem v5.3.0
[INFO] [stderr]     Checking file-owner v0.1.0
[INFO] [stderr]     Checking cotton v0.0.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.27s
[INFO] running `Command { std: "docker" "inspect" "87922cbd396a961645ab8add40514989cc1e962049e8b27eebf907b568af8517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87922cbd396a961645ab8add40514989cc1e962049e8b27eebf907b568af8517", kill_on_drop: false }`
[INFO] [stdout] 87922cbd396a961645ab8add40514989cc1e962049e8b27eebf907b568af8517