[INFO] fetching crate shellcaster 0.8.2...
[INFO] checking shellcaster-0.8.2 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate shellcaster 0.8.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate shellcaster 0.8.2 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shellcaster 0.8.2
[INFO] finished tweaking crates.io crate shellcaster 0.8.2
[INFO] tweaked toml for crates.io crate shellcaster 0.8.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate shellcaster 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c16e8895a723bd189da14c273f9e3401a1f4b0eff176e02c92219a49aa64eb8
[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" "3c16e8895a723bd189da14c273f9e3401a1f4b0eff176e02c92219a49aa64eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c16e8895a723bd189da14c273f9e3401a1f4b0eff176e02c92219a49aa64eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c16e8895a723bd189da14c273f9e3401a1f4b0eff176e02c92219a49aa64eb8", kill_on_drop: false }`
[INFO] [stdout] 3c16e8895a723bd189da14c273f9e3401a1f4b0eff176e02c92219a49aa64eb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09cd16869ea1d52ae1771a8b0fffd03ef89bddf80e8292bcecc4346042dcd2a9
[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" "09cd16869ea1d52ae1771a8b0fffd03ef89bddf80e8292bcecc4346042dcd2a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking qstring v0.7.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking sanitize-filename v0.2.1
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking ureq v1.3.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking rss v1.9.0
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking shellcaster v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "09cd16869ea1d52ae1771a8b0fffd03ef89bddf80e8292bcecc4346042dcd2a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09cd16869ea1d52ae1771a8b0fffd03ef89bddf80e8292bcecc4346042dcd2a9", kill_on_drop: false }`
[INFO] [stdout] 09cd16869ea1d52ae1771a8b0fffd03ef89bddf80e8292bcecc4346042dcd2a9