[INFO] fetching crate creoboros 0.1.0...
[INFO] checking creoboros-0.1.0 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate creoboros 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate creoboros 0.1.0 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate creoboros 0.1.0
[INFO] finished tweaking crates.io crate creoboros 0.1.0
[INFO] tweaked toml for crates.io crate creoboros 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate creoboros 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-humanize-rs v0.1.1
[INFO] [stderr]   Downloaded templar v0.1.0
[INFO] [stderr]   Downloaded unstructured v0.3.1
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5868436723d78b48fa70d35900040f5bec61bcc052eda16be34b4d4b2c1d8948
[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" "5868436723d78b48fa70d35900040f5bec61bcc052eda16be34b4d4b2c1d8948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5868436723d78b48fa70d35900040f5bec61bcc052eda16be34b4d4b2c1d8948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5868436723d78b48fa70d35900040f5bec61bcc052eda16be34b4d4b2c1d8948", kill_on_drop: false }`
[INFO] [stdout] 5868436723d78b48fa70d35900040f5bec61bcc052eda16be34b4d4b2c1d8948
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cde9100cbdb16ab0db5a1f352cdb5ce1a2ebc8e1b6441f51acfbb9063c48e3d
[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" "2cde9100cbdb16ab0db5a1f352cdb5ce1a2ebc8e1b6441f51acfbb9063c48e3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking arc-swap v0.4.3
[INFO] [stderr]     Checking humanize-rs v0.1.5
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking pest v2.1.2
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking async-macros v1.0.0
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking async-task v1.0.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking futures-timer v0.4.0
[INFO] [stderr]     Checking async-std v0.99.8
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling structopt-derive v0.3.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]     Checking structopt v0.3.2
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking unstructured v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking serde-humanize-rs v0.1.1
[INFO] [stderr]     Checking templar v0.1.0
[INFO] [stderr]     Checking creoboros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 05s
[INFO] running `Command { std: "docker" "inspect" "2cde9100cbdb16ab0db5a1f352cdb5ce1a2ebc8e1b6441f51acfbb9063c48e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cde9100cbdb16ab0db5a1f352cdb5ce1a2ebc8e1b6441f51acfbb9063c48e3d", kill_on_drop: false }`
[INFO] [stdout] 2cde9100cbdb16ab0db5a1f352cdb5ce1a2ebc8e1b6441f51acfbb9063c48e3d