[INFO] fetching crate stack-machine 0.1.0...
[INFO] testing stack-machine-0.1.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate stack-machine 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate stack-machine 0.1.0
[INFO] finished tweaking crates.io crate stack-machine 0.1.0
[INFO] tweaked toml for crates.io crate stack-machine 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stack-machine 0.1.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stack-machine 0.1.0 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 998ae263996453918a14fd1de3fc665cd9eeddbaaac74a102567af85bc628bba
[INFO] running `Command { std: "docker" "start" "-a" "998ae263996453918a14fd1de3fc665cd9eeddbaaac74a102567af85bc628bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "998ae263996453918a14fd1de3fc665cd9eeddbaaac74a102567af85bc628bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998ae263996453918a14fd1de3fc665cd9eeddbaaac74a102567af85bc628bba", kill_on_drop: false }`
[INFO] [stdout] 998ae263996453918a14fd1de3fc665cd9eeddbaaac74a102567af85bc628bba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a6d95ef9bfb3f55103c2d0104e2094bf27b2526b9ce199cb4bf41e6af204390
[INFO] running `Command { std: "docker" "start" "-a" "4a6d95ef9bfb3f55103c2d0104e2094bf27b2526b9ce199cb4bf41e6af204390", kill_on_drop: false }`
[INFO] [stderr]    Compiling stack-machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `mut1_err` is never used
[INFO] [stdout]   --> src/main.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | trait SpecialStack {
[INFO] [stdout]    |       ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn mut1_err(&mut self, f: fn(i64) -> Result<Vec<i64>, String>) -> StackResponse;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "4a6d95ef9bfb3f55103c2d0104e2094bf27b2526b9ce199cb4bf41e6af204390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a6d95ef9bfb3f55103c2d0104e2094bf27b2526b9ce199cb4bf41e6af204390", kill_on_drop: false }`
[INFO] [stdout] 4a6d95ef9bfb3f55103c2d0104e2094bf27b2526b9ce199cb4bf41e6af204390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0098a70c044222fd069e6c7be0fd0ad77832029c1a79fb79b3c218e7593784b
[INFO] running `Command { std: "docker" "start" "-a" "d0098a70c044222fd069e6c7be0fd0ad77832029c1a79fb79b3c218e7593784b", kill_on_drop: false }`
[INFO] [stderr]    Compiling stack-machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `mut1_err` is never used
[INFO] [stdout]   --> src/main.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | trait SpecialStack {
[INFO] [stdout]    |       ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn mut1_err(&mut self, f: fn(i64) -> Result<Vec<i64>, String>) -> StackResponse;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "d0098a70c044222fd069e6c7be0fd0ad77832029c1a79fb79b3c218e7593784b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0098a70c044222fd069e6c7be0fd0ad77832029c1a79fb79b3c218e7593784b", kill_on_drop: false }`
[INFO] [stdout] d0098a70c044222fd069e6c7be0fd0ad77832029c1a79fb79b3c218e7593784b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] de2ef9d84060d24f9ebacde0cef1699c76c96fea0a7e938274ac13808cb9b2f5
[INFO] running `Command { std: "docker" "start" "-a" "de2ef9d84060d24f9ebacde0cef1699c76c96fea0a7e938274ac13808cb9b2f5", kill_on_drop: false }`
[INFO] [stderr] warning: method `mut1_err` is never used
[INFO] [stderr]   --> src/main.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 50 | trait SpecialStack {
[INFO] [stderr]    |       ------------ method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 55 |     fn mut1_err(&mut self, f: fn(i64) -> Result<Vec<i64>, String>) -> StackResponse;
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stack-machine` (bin "stack-machine" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/stack_machine-8c6387c84e57bcda)
[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" "de2ef9d84060d24f9ebacde0cef1699c76c96fea0a7e938274ac13808cb9b2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de2ef9d84060d24f9ebacde0cef1699c76c96fea0a7e938274ac13808cb9b2f5", kill_on_drop: false }`
[INFO] [stdout] de2ef9d84060d24f9ebacde0cef1699c76c96fea0a7e938274ac13808cb9b2f5
