[INFO] fetching crate slipbridge 0.0.1...
[INFO] testing slipbridge-0.0.1 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate slipbridge 0.0.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate slipbridge 0.0.1
[INFO] finished tweaking crates.io crate slipbridge 0.0.1
[INFO] tweaked toml for crates.io crate slipbridge 0.0.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate slipbridge 0.0.1 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slipbridge 0.0.1 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e47c60a9c85ac4696444344d931ec87893d9a9c99da15055e5bfce6f5838de1
[INFO] running `Command { std: "docker" "start" "-a" "9e47c60a9c85ac4696444344d931ec87893d9a9c99da15055e5bfce6f5838de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e47c60a9c85ac4696444344d931ec87893d9a9c99da15055e5bfce6f5838de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e47c60a9c85ac4696444344d931ec87893d9a9c99da15055e5bfce6f5838de1", kill_on_drop: false }`
[INFO] [stdout] 9e47c60a9c85ac4696444344d931ec87893d9a9c99da15055e5bfce6f5838de1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8447956358dc525e48c73a124f86e707e93ba2f3e6474da5fcb0857a4b0eee91
[INFO] running `Command { std: "docker" "start" "-a" "8447956358dc525e48c73a124f86e707e93ba2f3e6474da5fcb0857a4b0eee91", kill_on_drop: false }`
[INFO] [stderr]    Compiling slipbridge v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Printer` is never constructed
[INFO] [stdout]  --> src/printer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Printer {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `discover` and `print_raw` are never used
[INFO] [stdout]   --> src/printer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Printer {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout]  9 |     /// Discover available printers on the system.
[INFO] [stdout] 10 |     pub fn discover() -> Result<Vec<Printer>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn print_raw(&self, _data: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "8447956358dc525e48c73a124f86e707e93ba2f3e6474da5fcb0857a4b0eee91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8447956358dc525e48c73a124f86e707e93ba2f3e6474da5fcb0857a4b0eee91", kill_on_drop: false }`
[INFO] [stdout] 8447956358dc525e48c73a124f86e707e93ba2f3e6474da5fcb0857a4b0eee91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b96dc462db2004c9117194aaf9c8a1ff55f1d864820522854b5761faf8e4863e
[INFO] running `Command { std: "docker" "start" "-a" "b96dc462db2004c9117194aaf9c8a1ff55f1d864820522854b5761faf8e4863e", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Printer` is never constructed
[INFO] [stdout]  --> src/printer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Printer {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `discover` and `print_raw` are never used
[INFO] [stdout]   --> src/printer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Printer {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout]  9 |     /// Discover available printers on the system.
[INFO] [stdout] 10 |     pub fn discover() -> Result<Vec<Printer>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn print_raw(&self, _data: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slipbridge v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Printer` is never constructed
[INFO] [stdout]  --> src/printer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Printer {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `discover` and `print_raw` are never used
[INFO] [stdout]   --> src/printer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Printer {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout]  9 |     /// Discover available printers on the system.
[INFO] [stdout] 10 |     pub fn discover() -> Result<Vec<Printer>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn print_raw(&self, _data: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "b96dc462db2004c9117194aaf9c8a1ff55f1d864820522854b5761faf8e4863e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96dc462db2004c9117194aaf9c8a1ff55f1d864820522854b5761faf8e4863e", kill_on_drop: false }`
[INFO] [stdout] b96dc462db2004c9117194aaf9c8a1ff55f1d864820522854b5761faf8e4863e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3653c9f412ceb8311041effbdfe584cb0dee03e063cdda1f240f802abdb33ddb
[INFO] running `Command { std: "docker" "start" "-a" "3653c9f412ceb8311041effbdfe584cb0dee03e063cdda1f240f802abdb33ddb", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Printer` is never constructed
[INFO] [stderr]  --> src/printer.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Printer {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `discover` and `print_raw` are never used
[INFO] [stderr]   --> src/printer.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr]  8 | impl Printer {
[INFO] [stderr]    | ------------ associated items in this implementation
[INFO] [stderr]  9 |     /// Discover available printers on the system.
[INFO] [stderr] 10 |     pub fn discover() -> Result<Vec<Printer>, Box<dyn std::error::Error>> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 15 |     pub fn print_raw(&self, _data: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `slipbridge` (lib) generated 2 warnings
[INFO] [stderr] warning: `slipbridge` (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/slipbridge-65302a24bb6c9596)
[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/slipbridge-7efe8794a0bae378)
[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]    Doc-tests slipbridge
[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" "3653c9f412ceb8311041effbdfe584cb0dee03e063cdda1f240f802abdb33ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3653c9f412ceb8311041effbdfe584cb0dee03e063cdda1f240f802abdb33ddb", kill_on_drop: false }`
[INFO] [stdout] 3653c9f412ceb8311041effbdfe584cb0dee03e063cdda1f240f802abdb33ddb
