[INFO] fetching crate mio_httpc 0.9.3...
[INFO] checking mio_httpc-0.9.3 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate mio_httpc 0.9.3 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate mio_httpc 0.9.3 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mio_httpc 0.9.3
[INFO] finished tweaking crates.io crate mio_httpc 0.9.3
[INFO] tweaked toml for crates.io crate mio_httpc 0.9.3 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate mio_httpc 0.9.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "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] 736bc27d635f03c49abd366d710daab8cf90efde1dcd30b222978db85e546155
[INFO] running `Command { std: "docker" "start" "-a" "736bc27d635f03c49abd366d710daab8cf90efde1dcd30b222978db85e546155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "736bc27d635f03c49abd366d710daab8cf90efde1dcd30b222978db85e546155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "736bc27d635f03c49abd366d710daab8cf90efde1dcd30b222978db85e546155", kill_on_drop: false }`
[INFO] [stdout] 736bc27d635f03c49abd366d710daab8cf90efde1dcd30b222978db85e546155
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cec898b640c12b7c73b38dd544ecd8c5fe591280279142fbd99d6a9f52689ad
[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" "1cec898b640c12b7c73b38dd544ecd8c5fe591280279142fbd99d6a9f52689ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling mio_httpc v0.9.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking smallvec v1.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking libflate v1.0.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stdout] warning: field is never read: `send_encoding`
[INFO] [stdout]   --> src/call.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     send_encoding: TransferEncoding,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `send_encoding`
[INFO] [stdout]   --> src/call.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     send_encoding: TransferEncoding,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.71s
[INFO] running `Command { std: "docker" "inspect" "1cec898b640c12b7c73b38dd544ecd8c5fe591280279142fbd99d6a9f52689ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cec898b640c12b7c73b38dd544ecd8c5fe591280279142fbd99d6a9f52689ad", kill_on_drop: false }`
[INFO] [stdout] 1cec898b640c12b7c73b38dd544ecd8c5fe591280279142fbd99d6a9f52689ad