[INFO] fetching crate rsmatrix 0.2.0...
[INFO] testing rsmatrix-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rsmatrix 0.2.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate rsmatrix 0.2.0 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 rsmatrix 0.2.0
[INFO] finished tweaking crates.io crate rsmatrix 0.2.0
[INFO] tweaked toml for crates.io crate rsmatrix 0.2.0 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate crates.io crate rsmatrix 0.2.0 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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 1999c6ee92677fecf53176f26097ecbaf2c4d71d54b6621989373ab1ee3190cf
[INFO] running `Command { std: "docker" "start" "-a" "1999c6ee92677fecf53176f26097ecbaf2c4d71d54b6621989373ab1ee3190cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1999c6ee92677fecf53176f26097ecbaf2c4d71d54b6621989373ab1ee3190cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1999c6ee92677fecf53176f26097ecbaf2c4d71d54b6621989373ab1ee3190cf", kill_on_drop: false }`
[INFO] [stdout] 1999c6ee92677fecf53176f26097ecbaf2c4d71d54b6621989373ab1ee3190cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] ed583155e8e215d498e324f6a6f6327f9cc56022f1f0ebf7c436c14043adf499
[INFO] running `Command { std: "docker" "start" "-a" "ed583155e8e215d498e324f6a6f6327f9cc56022f1f0ebf7c436c14043adf499", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling inotify v0.9.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling notify v5.0.0-pre.10
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling crossterm v0.19.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling rsmatrix v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.71s
[INFO] running `Command { std: "docker" "inspect" "ed583155e8e215d498e324f6a6f6327f9cc56022f1f0ebf7c436c14043adf499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed583155e8e215d498e324f6a6f6327f9cc56022f1f0ebf7c436c14043adf499", kill_on_drop: false }`
[INFO] [stdout] ed583155e8e215d498e324f6a6f6327f9cc56022f1f0ebf7c436c14043adf499
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 3c157a777672c814e8e29d9a5cc461a286e9a22fa1956eba4a376a3aa7c110fc
[INFO] running `Command { std: "docker" "start" "-a" "3c157a777672c814e8e29d9a5cc461a286e9a22fa1956eba4a376a3aa7c110fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsmatrix v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "3c157a777672c814e8e29d9a5cc461a286e9a22fa1956eba4a376a3aa7c110fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c157a777672c814e8e29d9a5cc461a286e9a22fa1956eba4a376a3aa7c110fc", kill_on_drop: false }`
[INFO] [stdout] 3c157a777672c814e8e29d9a5cc461a286e9a22fa1956eba4a376a3aa7c110fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 6d0f58bfe0d374a654814e7488e7af073932bab0b16d52c05819e89b6c044df5
[INFO] running `Command { std: "docker" "start" "-a" "6d0f58bfe0d374a654814e7488e7af073932bab0b16d52c05819e89b6c044df5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rsmatrix-4720d63f4ee73809)
[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" "6d0f58bfe0d374a654814e7488e7af073932bab0b16d52c05819e89b6c044df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0f58bfe0d374a654814e7488e7af073932bab0b16d52c05819e89b6c044df5", kill_on_drop: false }`
[INFO] [stdout] 6d0f58bfe0d374a654814e7488e7af073932bab0b16d52c05819e89b6c044df5