[INFO] fetching crate protosocks 0.7.0...
[INFO] testing protosocks-0.7.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate protosocks 0.7.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate protosocks 0.7.0
[INFO] finished tweaking crates.io crate protosocks 0.7.0
[INFO] tweaked toml for crates.io crate protosocks 0.7.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate protosocks 0.7.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to highest compatible versions
[INFO] [stderr]       Adding bytes v0.5.6 (available: v1.12.1)
[INFO] [stderr]       Adding num-derive v0.3.3 (available: v0.5.1)
[INFO] [stderr]       Adding smoltcp v0.6.0 (available: v0.14.0)
[INFO] [stderr]       Adding snafu v0.4.4 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 | homepage = "https://github.com/hlzhang/protosocks/"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 | repository = "https://github.com/hlzhang/protosocks/"
[INFO] [stderr]    |              ----------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `protosocks` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73
[INFO] running `Command { std: "docker" "start" "299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 | homepage = "https://github.com/hlzhang/protosocks/"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 | repository = "https://github.com/hlzhang/protosocks/"
[INFO] [stderr]    |              ----------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `protosocks` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling managed v0.7.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling smoltcp v0.6.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling smolsocket v0.3.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling snafu-derive v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling snafu v0.4.4
[INFO] [stderr]    Compiling protosocks v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde::export`
[INFO] [stdout]  --> src/protocol/addr.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::export::Formatter;
[INFO] [stdout]   |            ^^^^^^ could not find `export` in `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protosocks` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73", kill_on_drop: false }`
[INFO] [stdout] 299c95c5383b39cbf65f9ca506faac8b563225a8282b1d13bc3e9b596d0f8b73
