[INFO] cloning repository https://github.com/DocRAID/mysql-connection-study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DocRAID/mysql-connection-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDocRAID%2Fmysql-connection-study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDocRAID%2Fmysql-connection-study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e496801f88f2cecaa1d2029f6bdd4f98c92dba0f
[INFO] checking DocRAID/mysql-connection-study against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDocRAID%2Fmysql-connection-study" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DocRAID/mysql-connection-study
[INFO] finished tweaking git repo https://github.com/DocRAID/mysql-connection-study
[INFO] tweaked toml for git repo https://github.com/DocRAID/mysql-connection-study written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DocRAID/mysql-connection-study on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DocRAID/mysql-connection-study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cbef770d0a39b4f4d648df444f755bbe19678a8d55255e53688e072cd3e858b
[INFO] running `Command { std: "docker" "start" "-a" "2cbef770d0a39b4f4d648df444f755bbe19678a8d55255e53688e072cd3e858b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cbef770d0a39b4f4d648df444f755bbe19678a8d55255e53688e072cd3e858b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cbef770d0a39b4f4d648df444f755bbe19678a8d55255e53688e072cd3e858b", kill_on_drop: false }`
[INFO] [stdout] 2cbef770d0a39b4f4d648df444f755bbe19678a8d55255e53688e072cd3e858b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c7e2247109f9b8a6a85d955efed881cba3bd1ffe2c9ac7dcaf401dfb093a416
[INFO] running `Command { std: "docker" "start" "-a" "4c7e2247109f9b8a6a85d955efed881cba3bd1ffe2c9ac7dcaf401dfb093a416", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
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[INFO] [stderr]    Compiling rocket v0.5.0-rc.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling mysql v17.0.0
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]    Compiling hyper v0.14.20
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[INFO] [stderr]     Checking tokio-util v0.7.3
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[INFO] [stderr]    Compiling rocket_http v0.5.0-rc.2
[INFO] [stderr]     Checking bigdecimal v0.1.2
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[INFO] [stderr]     Checking ubyte v0.10.3
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[INFO] [stderr]    Compiling rocket_codegen v0.5.0-rc.2
[INFO] [stderr]     Checking mysql_common v0.19.2
[INFO] [stdout] error: zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hyper-0.14.20/src/proto/h2/mod.rs:452:5
[INFO] [stdout]     |
[INFO] [stdout] 452 |     impossible: Impossible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this field contains `Impossible`, which is not inhabited, and makes it not a breaking change to become non-zero-sized in the future.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hyper` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4c7e2247109f9b8a6a85d955efed881cba3bd1ffe2c9ac7dcaf401dfb093a416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7e2247109f9b8a6a85d955efed881cba3bd1ffe2c9ac7dcaf401dfb093a416", kill_on_drop: false }`
[INFO] [stdout] 4c7e2247109f9b8a6a85d955efed881cba3bd1ffe2c9ac7dcaf401dfb093a416