[INFO] fetching crate rhack 0.1.0...
[INFO] testing rhack-0.1.0 against 1.86.0 for beta-1.87-1
[INFO] extracting crate rhack 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rhack 0.1.0 on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rhack 0.1.0
[INFO] finished tweaking crates.io crate rhack 0.1.0
[INFO] tweaked toml for crates.io crate rhack 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate rhack 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bc9c3cfd2f38fe9bbdc12b0e23d2676405f2bc4d8db7a913e54bada44223174
[INFO] running `Command { std: "docker" "start" "-a" "5bc9c3cfd2f38fe9bbdc12b0e23d2676405f2bc4d8db7a913e54bada44223174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bc9c3cfd2f38fe9bbdc12b0e23d2676405f2bc4d8db7a913e54bada44223174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc9c3cfd2f38fe9bbdc12b0e23d2676405f2bc4d8db7a913e54bada44223174", kill_on_drop: false }`
[INFO] [stdout] 5bc9c3cfd2f38fe9bbdc12b0e23d2676405f2bc4d8db7a913e54bada44223174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b00246eb0ef5bc64446339dee03d2d2a0ec02a2fe90e86c574d18ca9016bf66e
[INFO] running `Command { std: "docker" "start" "-a" "b00246eb0ef5bc64446339dee03d2d2a0ec02a2fe90e86c574d18ca9016bf66e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling toml_edit v0.2.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling rhack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `handle_err` is never used
[INFO] [stdout]   --> src/error.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait WriteErrorHandler {
[INFO] [stdout]    |           ----------------- method in this trait
[INFO] [stdout] 19 |     fn handle_err(self, device: &str) -> Result<()>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.90s
[INFO] running `Command { std: "docker" "inspect" "b00246eb0ef5bc64446339dee03d2d2a0ec02a2fe90e86c574d18ca9016bf66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b00246eb0ef5bc64446339dee03d2d2a0ec02a2fe90e86c574d18ca9016bf66e", kill_on_drop: false }`
[INFO] [stdout] b00246eb0ef5bc64446339dee03d2d2a0ec02a2fe90e86c574d18ca9016bf66e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cc9914bb4fef849cd6ffdb838988a5676ce8f17aa1de751f73b0d832a0e26aa
[INFO] running `Command { std: "docker" "start" "-a" "9cc9914bb4fef849cd6ffdb838988a5676ce8f17aa1de751f73b0d832a0e26aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rhack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `handle_err` is never used
[INFO] [stdout]   --> src/error.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait WriteErrorHandler {
[INFO] [stdout]    |           ----------------- method in this trait
[INFO] [stdout] 19 |     fn handle_err(self, device: &str) -> Result<()>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "9cc9914bb4fef849cd6ffdb838988a5676ce8f17aa1de751f73b0d832a0e26aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cc9914bb4fef849cd6ffdb838988a5676ce8f17aa1de751f73b0d832a0e26aa", kill_on_drop: false }`
[INFO] [stdout] 9cc9914bb4fef849cd6ffdb838988a5676ce8f17aa1de751f73b0d832a0e26aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15fffe5faaf6676b2643d0153d4041e2c9362fc7b022676028ffb1b8b0f791e8
[INFO] running `Command { std: "docker" "start" "-a" "15fffe5faaf6676b2643d0153d4041e2c9362fc7b022676028ffb1b8b0f791e8", kill_on_drop: false }`
[INFO] [stderr] warning: method `handle_err` is never used
[INFO] [stderr]   --> src/error.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub trait WriteErrorHandler {
[INFO] [stderr]    |           ----------------- method in this trait
[INFO] [stderr] 19 |     fn handle_err(self, device: &str) -> Result<()>;
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rhack` (bin "rhack" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rhack-2e72b32c73e93975)
[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" "15fffe5faaf6676b2643d0153d4041e2c9362fc7b022676028ffb1b8b0f791e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15fffe5faaf6676b2643d0153d4041e2c9362fc7b022676028ffb1b8b0f791e8", kill_on_drop: false }`
[INFO] [stdout] 15fffe5faaf6676b2643d0153d4041e2c9362fc7b022676028ffb1b8b0f791e8