[INFO] fetching crate helios-dac 0.1.0...
[INFO] testing helios-dac-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate helios-dac 0.1.0 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate helios-dac 0.1.0 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 helios-dac 0.1.0
[INFO] finished tweaking crates.io crate helios-dac 0.1.0
[INFO] tweaked toml for crates.io crate helios-dac 0.1.0 written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate crates.io crate helios-dac 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 42a0d4f45b99cdde92f87f2fc848809d0a84ffe2e4c49b8fb82226d395f5fbd3
[INFO] running `Command { std: "docker" "start" "-a" "42a0d4f45b99cdde92f87f2fc848809d0a84ffe2e4c49b8fb82226d395f5fbd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42a0d4f45b99cdde92f87f2fc848809d0a84ffe2e4c49b8fb82226d395f5fbd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a0d4f45b99cdde92f87f2fc848809d0a84ffe2e4c49b8fb82226d395f5fbd3", kill_on_drop: false }`
[INFO] [stdout] 42a0d4f45b99cdde92f87f2fc848809d0a84ffe2e4c49b8fb82226d395f5fbd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] c771f8ee9f3c0c12de0399753df226232be6d7ea9fabffadfa2c67cd7dcb19bf
[INFO] running `Command { std: "docker" "start" "-a" "c771f8ee9f3c0c12de0399753df226232be6d7ea9fabffadfa2c67cd7dcb19bf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.1.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.0.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.8.2
[INFO] [stderr]    Compiling helios-dac-sys v0.1.0
[INFO] [stderr]    Compiling helios-dac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.36s
[INFO] running `Command { std: "docker" "inspect" "c771f8ee9f3c0c12de0399753df226232be6d7ea9fabffadfa2c67cd7dcb19bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c771f8ee9f3c0c12de0399753df226232be6d7ea9fabffadfa2c67cd7dcb19bf", kill_on_drop: false }`
[INFO] [stdout] c771f8ee9f3c0c12de0399753df226232be6d7ea9fabffadfa2c67cd7dcb19bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 2517a5e7d67c5ddb67c7d64fa166a72470fdd456cc4861183815e61c68749382
[INFO] running `Command { std: "docker" "start" "-a" "2517a5e7d67c5ddb67c7d64fa166a72470fdd456cc4861183815e61c68749382", kill_on_drop: false }`
[INFO] [stderr]    Compiling helios-dac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Coordinate`
[INFO] [stdout]  --> examples/frames.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use helios_dac::{Frame, Point, Coordinate, Color};
[INFO] [stdout]   |                                ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/frames.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let mut y = (i * 0xFFF / 30) as u16;
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "2517a5e7d67c5ddb67c7d64fa166a72470fdd456cc4861183815e61c68749382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2517a5e7d67c5ddb67c7d64fa166a72470fdd456cc4861183815e61c68749382", kill_on_drop: false }`
[INFO] [stdout] 2517a5e7d67c5ddb67c7d64fa166a72470fdd456cc4861183815e61c68749382
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 096526f82f437caeb4a84b65f9747e0dc51bcae6efb735902a36209b75ca23eb
[INFO] running `Command { std: "docker" "start" "-a" "096526f82f437caeb4a84b65f9747e0dc51bcae6efb735902a36209b75ca23eb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `Coordinate`
[INFO] [stderr]  --> examples/frames.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | use helios_dac::{Frame, Point, Coordinate, Color};
[INFO] [stderr]   |                                ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/frames.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let mut y = (i * 0xFFF / 30) as u16;
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `helios-dac` (example "frames") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/helios_dac-12c3650e1634920f)
[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 helios-dac
[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" "096526f82f437caeb4a84b65f9747e0dc51bcae6efb735902a36209b75ca23eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "096526f82f437caeb4a84b65f9747e0dc51bcae6efb735902a36209b75ca23eb", kill_on_drop: false }`
[INFO] [stdout] 096526f82f437caeb4a84b65f9747e0dc51bcae6efb735902a36209b75ca23eb