[INFO] fetching crate revpfw3 0.5.0...
[INFO] building revpfw3-0.5.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate revpfw3 0.5.0 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate revpfw3 0.5.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a762bc4c54bd86ba99db272aaf31dd207ad8354abebea766b6e161789ec1e38
[INFO] running `Command { std: "docker" "start" "-a" "4a762bc4c54bd86ba99db272aaf31dd207ad8354abebea766b6e161789ec1e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a762bc4c54bd86ba99db272aaf31dd207ad8354abebea766b6e161789ec1e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a762bc4c54bd86ba99db272aaf31dd207ad8354abebea766b6e161789ec1e38", kill_on_drop: false }`
[INFO] [stdout] 4a762bc4c54bd86ba99db272aaf31dd207ad8354abebea766b6e161789ec1e38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b50eed531c1ed8798a0360b85c85bca932110a129fa9181f0daa9d95dc864968
[INFO] running `Command { std: "docker" "start" "-a" "b50eed531c1ed8798a0360b85c85bca932110a129fa9181f0daa9d95dc864968", 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 quote v1.0.33
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling serial v0.4.0
[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 6.31s
[INFO] running `Command { std: "docker" "inspect" "b50eed531c1ed8798a0360b85c85bca932110a129fa9181f0daa9d95dc864968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b50eed531c1ed8798a0360b85c85bca932110a129fa9181f0daa9d95dc864968", kill_on_drop: false }`
[INFO] [stdout] b50eed531c1ed8798a0360b85c85bca932110a129fa9181f0daa9d95dc864968
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d03e1c99f683a126673b9351eec56718559d0019e7bec60b277e99702cb094
[INFO] running `Command { std: "docker" "start" "-a" "83d03e1c99f683a126673b9351eec56718559d0019e7bec60b277e99702cb094", 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 0.53s
[INFO] running `Command { std: "docker" "inspect" "83d03e1c99f683a126673b9351eec56718559d0019e7bec60b277e99702cb094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d03e1c99f683a126673b9351eec56718559d0019e7bec60b277e99702cb094", kill_on_drop: false }`
[INFO] [stdout] 83d03e1c99f683a126673b9351eec56718559d0019e7bec60b277e99702cb094