[INFO] fetching crate revpfw3 0.5.0...
[INFO] building revpfw3-0.5.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate revpfw3 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate revpfw3 0.5.0
[INFO] finished tweaking crates.io crate revpfw3 0.5.0
[INFO] tweaked toml for crates.io crate revpfw3 0.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate revpfw3 0.5.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate revpfw3 0.5.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ioctl-rs v0.1.6
[INFO] [stderr]   Downloaded serial-windows v0.4.0
[INFO] [stderr]   Downloaded serial-unix v0.4.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded serial-core v0.4.0
[INFO] [stderr]   Downloaded termios v0.2.2
[INFO] [stderr]   Downloaded serial v0.4.0
[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] [stderr]   Downloaded libc v0.2.148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 879296e1180753bb008722389c706afb55de76ba6f5f855952d1adfe8fe807f2
[INFO] running `Command { std: "docker" "start" "-a" "879296e1180753bb008722389c706afb55de76ba6f5f855952d1adfe8fe807f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879296e1180753bb008722389c706afb55de76ba6f5f855952d1adfe8fe807f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879296e1180753bb008722389c706afb55de76ba6f5f855952d1adfe8fe807f2", kill_on_drop: false }`
[INFO] [stdout] 879296e1180753bb008722389c706afb55de76ba6f5f855952d1adfe8fe807f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 231ebaa7f8e8a50e670a200c0c05acb5575aa2bf212fddfb0ea2378a252e8c33
[INFO] running `Command { std: "docker" "start" "-a" "231ebaa7f8e8a50e670a200c0c05acb5575aa2bf212fddfb0ea2378a252e8c33", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling enum-ordinalize v3.1.15
[INFO] [stderr]    Compiling revpfw3 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/connection.rs:139:35
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stdout]     |                                   ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 139 -     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stdout] 139 +     fn as_read(&mut self) -> &mut dyn Read  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/connection.rs:142:36
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stdout]     |                                    ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 142 -     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stdout] 142 +     fn as_write(&mut self) -> &mut dyn Write  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.44s
[INFO] running `Command { std: "docker" "inspect" "231ebaa7f8e8a50e670a200c0c05acb5575aa2bf212fddfb0ea2378a252e8c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "231ebaa7f8e8a50e670a200c0c05acb5575aa2bf212fddfb0ea2378a252e8c33", kill_on_drop: false }`
[INFO] [stdout] 231ebaa7f8e8a50e670a200c0c05acb5575aa2bf212fddfb0ea2378a252e8c33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e22d155eb67aefc0da1cea2fed28eed574f3780add53fb3d08355afac0e9750a
[INFO] running `Command { std: "docker" "start" "-a" "e22d155eb67aefc0da1cea2fed28eed574f3780add53fb3d08355afac0e9750a", kill_on_drop: false }`
[INFO] [stderr]    Compiling revpfw3 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/connection.rs:139:35
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stdout]     |                                   ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 139 -     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stdout] 139 +     fn as_read(&mut self) -> &mut dyn Read  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/connection.rs:142:36
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stdout]     |                                    ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 142 -     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stdout] 142 +     fn as_write(&mut self) -> &mut dyn Write  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/connection.rs:139:35
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stdout]     |                                   ^        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 139 -     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stdout] 139 +     fn as_read(&mut self) -> &mut dyn Read  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/connection.rs:142:36
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stdout]     |                                    ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 142 -     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stdout] 142 +     fn as_write(&mut self) -> &mut dyn Write  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "e22d155eb67aefc0da1cea2fed28eed574f3780add53fb3d08355afac0e9750a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22d155eb67aefc0da1cea2fed28eed574f3780add53fb3d08355afac0e9750a", kill_on_drop: false }`
[INFO] [stdout] e22d155eb67aefc0da1cea2fed28eed574f3780add53fb3d08355afac0e9750a