[INFO] fetching crate revpfw3 0.5.0...
[INFO] testing revpfw3-0.5.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate revpfw3 0.5.0 into /workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate revpfw3 0.5.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termios v0.2.2
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.15
[INFO] [stderr]   Downloaded ioctl-rs v0.1.6
[INFO] [stderr]   Downloaded serial-core v0.4.0
[INFO] [stderr]   Downloaded serial v0.4.0
[INFO] [stderr]   Downloaded serial-windows v0.4.0
[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] [stderr]   Downloaded serial-unix v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7803c4fd64587de356212a6a44c76f889fe488424d6aa0eb80bf5efd0c69cfc
[INFO] running `Command { std: "docker" "start" "-a" "e7803c4fd64587de356212a6a44c76f889fe488424d6aa0eb80bf5efd0c69cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7803c4fd64587de356212a6a44c76f889fe488424d6aa0eb80bf5efd0c69cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7803c4fd64587de356212a6a44c76f889fe488424d6aa0eb80bf5efd0c69cfc", kill_on_drop: false }`
[INFO] [stdout] e7803c4fd64587de356212a6a44c76f889fe488424d6aa0eb80bf5efd0c69cfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f7a36406aeed601fa6cac3b464f3968324eb03da330e7f1ed06613725c0c7b1
[INFO] running `Command { std: "docker" "start" "-a" "4f7a36406aeed601fa6cac3b464f3968324eb03da330e7f1ed06613725c0c7b1", 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 syn v2.0.37
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-unix v0.4.0
[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)]` 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 7.12s
[INFO] running `Command { std: "docker" "inspect" "4f7a36406aeed601fa6cac3b464f3968324eb03da330e7f1ed06613725c0c7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7a36406aeed601fa6cac3b464f3968324eb03da330e7f1ed06613725c0c7b1", kill_on_drop: false }`
[INFO] [stdout] 4f7a36406aeed601fa6cac3b464f3968324eb03da330e7f1ed06613725c0c7b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7cc0682af20d4fa8a53563a96d8683d6a7b4ecbaefaa96aa64f5dd9363c4a5f
[INFO] running `Command { std: "docker" "start" "-a" "c7cc0682af20d4fa8a53563a96d8683d6a7b4ecbaefaa96aa64f5dd9363c4a5f", kill_on_drop: false }`
[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)]` 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]    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)]` 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 0.47s
[INFO] running `Command { std: "docker" "inspect" "c7cc0682af20d4fa8a53563a96d8683d6a7b4ecbaefaa96aa64f5dd9363c4a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7cc0682af20d4fa8a53563a96d8683d6a7b4ecbaefaa96aa64f5dd9363c4a5f", kill_on_drop: false }`
[INFO] [stdout] c7cc0682af20d4fa8a53563a96d8683d6a7b4ecbaefaa96aa64f5dd9363c4a5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 55bd187f8a9e42a45966a7cc28b8be72e76c371f64ec2f9e7b53df2fd8d3dcfc
[INFO] running `Command { std: "docker" "start" "-a" "55bd187f8a9e42a45966a7cc28b8be72e76c371f64ec2f9e7b53df2fd8d3dcfc", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/connection.rs:139:35
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stderr]     |                                   ^        ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 139 -     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stderr] 139 +     fn as_read(&mut self) -> &mut dyn Read {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/connection.rs:142:36
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stderr]     |                                    ^         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 142 -     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stderr] 142 +     fn as_write(&mut self) -> &mut dyn Write {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `revpfw3` (lib) generated 2 warnings (run `cargo fix --lib -p revpfw3` to apply 2 suggestions)
[INFO] [stderr] warning: `revpfw3` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/revpfw3-baa3ee7cce3c5f48)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/revpfw3-9cd4c0aa1f421e33)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests revpfw3
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/connection.rs:139:35
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stderr]     |                                   ^        ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 139 -     fn as_read(&mut self) -> &mut (dyn Read) {
[INFO] [stderr] 139 +     fn as_read(&mut self) -> &mut dyn Read {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/connection.rs:142:36
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stderr]     |                                    ^         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 142 -     fn as_write(&mut self) -> &mut (dyn Write) {
[INFO] [stderr] 142 +     fn as_write(&mut self) -> &mut dyn Write {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "55bd187f8a9e42a45966a7cc28b8be72e76c371f64ec2f9e7b53df2fd8d3dcfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55bd187f8a9e42a45966a7cc28b8be72e76c371f64ec2f9e7b53df2fd8d3dcfc", kill_on_drop: false }`
[INFO] [stdout] 55bd187f8a9e42a45966a7cc28b8be72e76c371f64ec2f9e7b53df2fd8d3dcfc