[INFO] fetching crate docker-bisect 0.1.0...
[INFO] checking docker-bisect-0.1.0 against master#e9271846294c4ee5bd7706df68180320c0b5ff20 for pr-119825
[INFO] extracting crate docker-bisect 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate docker-bisect 0.1.0 on toolchain e9271846294c4ee5bd7706df68180320c0b5ff20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docker-bisect 0.1.0
[INFO] finished tweaking crates.io crate docker-bisect 0.1.0
[INFO] tweaked toml for crates.io crate docker-bisect 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded traitobject v0.0.1
[INFO] [stderr]   Downloaded indicatif v0.10.3
[INFO] [stderr]   Downloaded cookie v0.2.5
[INFO] [stderr]   Downloaded backtrace v0.2.3
[INFO] [stderr]   Downloaded named_pipe v0.2.4
[INFO] [stderr]   Downloaded hpack v0.2.0
[INFO] [stderr]   Downloaded error-chain v0.5.0
[INFO] [stderr]   Downloaded number_prefix v0.2.8
[INFO] [stderr]   Downloaded console v0.15.8
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded solicit v0.4.4
[INFO] [stderr]   Downloaded hyper v0.9.18
[INFO] [stderr]   Downloaded backtrace-sys v0.1.23
[INFO] [stderr]   Downloaded dockworker v0.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3922d6f6327c19fcc414f4bd7001ac8139f6da6867e8a17744b75256cd23403
[INFO] running `Command { std: "docker" "start" "-a" "a3922d6f6327c19fcc414f4bd7001ac8139f6da6867e8a17744b75256cd23403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3922d6f6327c19fcc414f4bd7001ac8139f6da6867e8a17744b75256cd23403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3922d6f6327c19fcc414f4bd7001ac8139f6da6867e8a17744b75256cd23403", kill_on_drop: false }`
[INFO] [stdout] a3922d6f6327c19fcc414f4bd7001ac8139f6da6867e8a17744b75256cd23403
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ce7c8a579ac6258e540b8b22b1b05aa5928b271f36c6184f8ef483d1cdd3691
[INFO] running `Command { std: "docker" "start" "-a" "7ce7c8a579ac6258e540b8b22b1b05aa5928b271f36c6184f8ef483d1cdd3691", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking filetime v0.2.23
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking indicatif v0.10.3
[INFO] [stderr]     Checking error-chain v0.5.0
[INFO] [stderr]     Checking xattr v1.2.0
[INFO] [stderr]     Checking is-terminal v0.4.10
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stderr]     Checking tar v0.4.40
[INFO] [stderr]     Checking dockworker v0.0.8
[INFO] [stderr]     Checking docker-bisect v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "7ce7c8a579ac6258e540b8b22b1b05aa5928b271f36c6184f8ef483d1cdd3691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce7c8a579ac6258e540b8b22b1b05aa5928b271f36c6184f8ef483d1cdd3691", kill_on_drop: false }`
[INFO] [stdout] 7ce7c8a579ac6258e540b8b22b1b05aa5928b271f36c6184f8ef483d1cdd3691
[INFO] checking docker-bisect-0.1.0 against try#925e66ec5d7d73da31ddd13e53f21e4674feb4ba for pr-119825
[INFO] extracting crate docker-bisect 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate docker-bisect 0.1.0 on toolchain 925e66ec5d7d73da31ddd13e53f21e4674feb4ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docker-bisect 0.1.0
[INFO] finished tweaking crates.io crate docker-bisect 0.1.0
[INFO] tweaked toml for crates.io crate docker-bisect 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e24f5e72b62e55fdfe8d338e679f5893887ec0b138443b962971cbaf1d8330e1
[INFO] running `Command { std: "docker" "start" "-a" "e24f5e72b62e55fdfe8d338e679f5893887ec0b138443b962971cbaf1d8330e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e24f5e72b62e55fdfe8d338e679f5893887ec0b138443b962971cbaf1d8330e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e24f5e72b62e55fdfe8d338e679f5893887ec0b138443b962971cbaf1d8330e1", kill_on_drop: false }`
[INFO] [stdout] e24f5e72b62e55fdfe8d338e679f5893887ec0b138443b962971cbaf1d8330e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+925e66ec5d7d73da31ddd13e53f21e4674feb4ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f3b64f67667fcf7684b9781c2817d18b4fe3246dd8fd8a78b4bd27619d99288
[INFO] running `Command { std: "docker" "start" "-a" "3f3b64f67667fcf7684b9781c2817d18b4fe3246dd8fd8a78b4bd27619d99288", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking filetime v0.2.23
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stdout] error[E0592]: duplicate definitions with name `downcast_ref_unchecked`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/hyper-0.9.18/src/net.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     unsafe fn downcast_ref_unchecked<T: 'static>(&self) -> &T {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `downcast_ref_unchecked`
[INFO] [stdout] ...
[INFO] [stdout] 157 |     unsafe fn downcast_ref_unchecked<T: 'static>(&self) -> &T {
[INFO] [stdout]     |     --------------------------------------------------------- other definition for `downcast_ref_unchecked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `downcast_mut_unchecked`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/hyper-0.9.18/src/net.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     unsafe fn downcast_mut_unchecked<T: 'static>(&mut self) -> &mut T {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `downcast_mut_unchecked`
[INFO] [stdout] ...
[INFO] [stdout] 161 |     unsafe fn downcast_mut_unchecked<T: 'static>(&mut self) -> &mut T {
[INFO] [stdout]     |     ----------------------------------------------------------------- other definition for `downcast_mut_unchecked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `downcast_unchecked`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/hyper-0.9.18/src/net.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     unsafe fn downcast_unchecked<T: 'static>(self: Box<NetworkStream>) -> Box<T>  {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `downcast_unchecked`
[INFO] [stdout] ...
[INFO] [stdout] 165 |     unsafe fn downcast_unchecked<T: 'static>(self: Box<NetworkStream + Send>) -> Box<T>  {
[INFO] [stdout]     |     ----------------------------------------------------------------------------------- other definition for `downcast_unchecked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `is`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/hyper-0.9.18/src/net.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn is<T: Any>(&self) -> bool {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `is`
[INFO] [stdout] ...
[INFO] [stdout] 174 |     pub fn is<T: Any>(&self) -> bool {
[INFO] [stdout]     |     -------------------------------- other definition for `is`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `downcast_ref`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/hyper-0.9.18/src/net.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn downcast_ref<T: Any>(&self) -> Option<&T> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `downcast_ref`
[INFO] [stdout] ...
[INFO] [stdout] 180 |     pub fn downcast_ref<T: Any>(&self) -> Option<&T> {
[INFO] [stdout]     |     ------------------------------------------------ other definition for `downcast_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `downcast_mut`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/hyper-0.9.18/src/net.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn downcast_mut<T: Any>(&mut self) -> Option<&mut T> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `downcast_mut`
[INFO] [stdout] ...
[INFO] [stdout] 191 |     pub fn downcast_mut<T: Any>(&mut self) -> Option<&mut T> {
[INFO] [stdout]     |     -------------------------------------------------------- other definition for `downcast_mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `downcast`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/hyper-0.9.18/src/net.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     pub fn downcast<T: Any>(self: Box<NetworkStream>)
[INFO] [stdout] 147 | |             -> Result<Box<T>, Box<NetworkStream>> {
[INFO] [stdout]     | |_________________________________________________^ duplicate definitions for `downcast`
[INFO] [stdout] ...
[INFO] [stdout] 201 | /     pub fn downcast<T: Any>(self: Box<NetworkStream + Send>)
[INFO] [stdout] 202 | |             -> Result<Box<T>, Box<NetworkStream + Send>> {
[INFO] [stdout]     | |________________________________________________________- other definition for `downcast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0592`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hyper` (lib) due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3f3b64f67667fcf7684b9781c2817d18b4fe3246dd8fd8a78b4bd27619d99288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f3b64f67667fcf7684b9781c2817d18b4fe3246dd8fd8a78b4bd27619d99288", kill_on_drop: false }`
[INFO] [stdout] 3f3b64f67667fcf7684b9781c2817d18b4fe3246dd8fd8a78b4bd27619d99288