[INFO] fetching crate cortex-dispatcher 0.1.2...
[INFO] testing cortex-dispatcher-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cortex-dispatcher 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cortex-dispatcher 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cortex-dispatcher 0.1.2
[INFO] finished tweaking crates.io crate cortex-dispatcher 0.1.2
[INFO] tweaked toml for crates.io crate cortex-dispatcher 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.130
[INFO] [stderr]   Downloaded fnv v1.0.7
[INFO] [stderr]   Downloaded winapi-build v0.1.1
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[INFO] [stderr]   Downloaded vec_map v0.8.2
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded config v0.9.3
[INFO] [stderr]   Downloaded serde_test v0.8.23
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[INFO] [stderr]   Downloaded nom v4.2.3
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[INFO] [stderr]   Downloaded serde-hjson v0.8.2
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[INFO] [stderr]   Downloaded parking_lot_core v0.6.2
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[INFO] [stderr]   Downloaded num-traits v0.2.14
[INFO] [stderr]   Downloaded tokio-reactor v0.1.12
[INFO] [stderr]   Downloaded fuchsia-zircon v0.3.3
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded num_cpus v1.13.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.57
[INFO] [stderr]   Downloaded futures v0.1.31
[INFO] [stderr]   Downloaded kernel32-sys v0.2.2
[INFO] [stderr]   Downloaded ws2_32-sys v0.2.1
[INFO] [stderr]   Downloaded miow v0.2.2
[INFO] [stderr]   Downloaded mio v0.6.23
[INFO] [stderr]   Downloaded net2 v0.2.37
[INFO] [stderr]   Downloaded tokio-sync v0.1.8
[INFO] [stderr]   Downloaded inotify v0.6.1
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[INFO] [stderr]   Downloaded parking_lot v0.9.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.2
[INFO] [stderr]   Downloaded libc v0.2.101
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded bytes v0.4.12
[INFO] [stderr]   Downloaded smallvec v0.6.14
[INFO] [stderr]   Downloaded tokio-io v0.1.13
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded winapi v0.2.8
[INFO] [stderr]   Downloaded scopeguard v1.1.0
[INFO] [stderr]   Downloaded lock_api v0.3.4
[INFO] [stderr]   Downloaded maybe-uninit v2.0.0
[INFO] [stderr]   Downloaded slab v0.4.4
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded serde_derive v1.0.130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0309038ee954e4e01a09ff0a926b22249d25c893fc2996ce3a97772bc6e85ed
[INFO] running `Command { std: "docker" "start" "-a" "e0309038ee954e4e01a09ff0a926b22249d25c893fc2996ce3a97772bc6e85ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0309038ee954e4e01a09ff0a926b22249d25c893fc2996ce3a97772bc6e85ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0309038ee954e4e01a09ff0a926b22249d25c893fc2996ce3a97772bc6e85ed", kill_on_drop: false }`
[INFO] [stdout] e0309038ee954e4e01a09ff0a926b22249d25c893fc2996ce3a97772bc6e85ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb6afb649d2012fbf01f4d221b85fb4c0fb2e2ee56065f720a3a5f1efef011bf
[INFO] running `Command { std: "docker" "start" "-a" "fb6afb649d2012fbf01f4d221b85fb4c0fb2e2ee56065f720a3a5f1efef011bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling serde_regex v0.3.1
[INFO] [stderr]    Compiling config v0.9.3
[INFO] [stderr]    Compiling cortex-dispatcher v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:71:15
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if let Ok(c) = merge_result {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.57s
[INFO] running `Command { std: "docker" "inspect" "fb6afb649d2012fbf01f4d221b85fb4c0fb2e2ee56065f720a3a5f1efef011bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb6afb649d2012fbf01f4d221b85fb4c0fb2e2ee56065f720a3a5f1efef011bf", kill_on_drop: false }`
[INFO] [stdout] fb6afb649d2012fbf01f4d221b85fb4c0fb2e2ee56065f720a3a5f1efef011bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b77cdc6821c44f9b5cdf61e3c01ccd64fc0e105cf1c68284ef1514e2b6f8786e
[INFO] running `Command { std: "docker" "start" "-a" "b77cdc6821c44f9b5cdf61e3c01ccd64fc0e105cf1c68284ef1514e2b6f8786e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-dispatcher v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:71:15
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if let Ok(c) = merge_result {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "b77cdc6821c44f9b5cdf61e3c01ccd64fc0e105cf1c68284ef1514e2b6f8786e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77cdc6821c44f9b5cdf61e3c01ccd64fc0e105cf1c68284ef1514e2b6f8786e", kill_on_drop: false }`
[INFO] [stdout] b77cdc6821c44f9b5cdf61e3c01ccd64fc0e105cf1c68284ef1514e2b6f8786e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 83b8a39074d07bbf6187a86d7533e4974ac8057618b34f661ee96860dde01785
[INFO] running `Command { std: "docker" "start" "-a" "83b8a39074d07bbf6187a86d7533e4974ac8057618b34f661ee96860dde01785", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:71:15
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 71 |     if let Ok(c) = merge_result {
[INFO] [stdout] 
[INFO] [stderr]    |               ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cortex-dispatcher` (bin "cortex-dispatcher" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cortex_dispatcher-19e11b6e54570b63)
[INFO] running `Command { std: "docker" "inspect" "83b8a39074d07bbf6187a86d7533e4974ac8057618b34f661ee96860dde01785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83b8a39074d07bbf6187a86d7533e4974ac8057618b34f661ee96860dde01785", kill_on_drop: false }`
[INFO] [stdout] 83b8a39074d07bbf6187a86d7533e4974ac8057618b34f661ee96860dde01785