[INFO] fetching crate mio_httpc 0.9.5...
[INFO] checking mio_httpc-0.9.5 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate mio_httpc 0.9.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mio_httpc 0.9.5 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mio_httpc 0.9.5
[INFO] finished tweaking crates.io crate mio_httpc 0.9.5
[INFO] tweaked toml for crates.io crate mio_httpc 0.9.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mio_httpc 0.9.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ipconfig v0.1.9
[INFO] [stderr]   Downloaded error-chain v0.8.1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4842dce1a5405d99177641323d8acbd835f9c9e3e6fe64ad98a2b0fc79978400
[INFO] running `Command { std: "docker" "start" "-a" "4842dce1a5405d99177641323d8acbd835f9c9e3e6fe64ad98a2b0fc79978400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4842dce1a5405d99177641323d8acbd835f9c9e3e6fe64ad98a2b0fc79978400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4842dce1a5405d99177641323d8acbd835f9c9e3e6fe64ad98a2b0fc79978400", kill_on_drop: false }`
[INFO] [stdout] 4842dce1a5405d99177641323d8acbd835f9c9e3e6fe64ad98a2b0fc79978400
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b9cd764569dd7364d02dd9e1ecdd8b21da6e2f2ba26c7d9d00c0988b9355e80
[INFO] running `Command { std: "docker" "start" "-a" "6b9cd764569dd7364d02dd9e1ecdd8b21da6e2f2ba26c7d9d00c0988b9355e80", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling mio_httpc v0.9.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[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:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     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:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     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 18.34s
[INFO] running `Command { std: "docker" "inspect" "6b9cd764569dd7364d02dd9e1ecdd8b21da6e2f2ba26c7d9d00c0988b9355e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9cd764569dd7364d02dd9e1ecdd8b21da6e2f2ba26c7d9d00c0988b9355e80", kill_on_drop: false }`
[INFO] [stdout] 6b9cd764569dd7364d02dd9e1ecdd8b21da6e2f2ba26c7d9d00c0988b9355e80