[INFO] fetching crate io-synesthesist 0.1.1...
[INFO] testing io-synesthesist-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate io-synesthesist 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate io-synesthesist 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-synesthesist 0.1.1
[INFO] finished tweaking crates.io crate io-synesthesist 0.1.1
[INFO] tweaked toml for crates.io crate io-synesthesist 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2aa94d7b598c8ced9dc4b4323beac33aee92676880da258b36cc70d9d2ac59af
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2aa94d7b598c8ced9dc4b4323beac33aee92676880da258b36cc70d9d2ac59af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aa94d7b598c8ced9dc4b4323beac33aee92676880da258b36cc70d9d2ac59af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa94d7b598c8ced9dc4b4323beac33aee92676880da258b36cc70d9d2ac59af", kill_on_drop: false }`
[INFO] [stdout] 2aa94d7b598c8ced9dc4b4323beac33aee92676880da258b36cc70d9d2ac59af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 450348e04704a314f8cc36d36ca3ad6492700317d16c82fcab8404f16a819c40
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "450348e04704a314f8cc36d36ca3ad6492700317d16c82fcab8404f16a819c40", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-synesthesist v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ffi.rs:182:1
[INFO] [stdout]     |
[INFO] [stdout] 182 | / /// The `C` extern is list of system call from libc required
[INFO] [stdout] 183 | | /// by the standard in/out put.
[INFO] [stdout]     | |_______________________________^
[INFO] [stdout] ...
[INFO] [stdout] 186 | / extern "C" {
[INFO] [stdout] 187 | |     pub fn write(fd: i32, buf: *const i8, len: i32) -> i32;
[INFO] [stdout] 188 | |     pub fn lseek(fd: i32, offset: u64, whence: i32) -> u64;
[INFO] [stdout] 189 | |     pub fn read(fd: i32, buf: *mut i8, len: i32) -> i32;
[INFO] [stdout] 190 | |     pub fn ioctl(fd: i32, req: u64, term: *mut Termios) -> i32;
[INFO] [stdout] 191 | | }
[INFO] [stdout]     | |_- rustdoc does not generate documentation for extern block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "450348e04704a314f8cc36d36ca3ad6492700317d16c82fcab8404f16a819c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "450348e04704a314f8cc36d36ca3ad6492700317d16c82fcab8404f16a819c40", kill_on_drop: false }`
[INFO] [stdout] 450348e04704a314f8cc36d36ca3ad6492700317d16c82fcab8404f16a819c40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a65b7bceef32ed2167f80649933cfc120bc642ccaa98bb45e53b33e3c83246c0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a65b7bceef32ed2167f80649933cfc120bc642ccaa98bb45e53b33e3c83246c0", kill_on_drop: false }`
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ffi.rs:182:1
[INFO] [stdout]     |
[INFO] [stdout] 182 | / /// The `C` extern is list of system call from libc required
[INFO] [stdout] 183 | | /// by the standard in/out put.
[INFO] [stdout]     | |_______________________________^
[INFO] [stdout] ...
[INFO] [stdout] 186 | / extern "C" {
[INFO] [stdout] 187 | |     pub fn write(fd: i32, buf: *const i8, len: i32) -> i32;
[INFO] [stdout] 188 | |     pub fn lseek(fd: i32, offset: u64, whence: i32) -> u64;
[INFO] [stdout] 189 | |     pub fn read(fd: i32, buf: *mut i8, len: i32) -> i32;
[INFO] [stdout] 190 | |     pub fn ioctl(fd: i32, req: u64, term: *mut Termios) -> i32;
[INFO] [stdout] 191 | | }
[INFO] [stdout]     | |_- rustdoc does not generate documentation for extern block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling io-synesthesist v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/ffi.rs:182:1
[INFO] [stdout]     |
[INFO] [stdout] 182 | / /// The `C` extern is list of system call from libc required
[INFO] [stdout] 183 | | /// by the standard in/out put.
[INFO] [stdout]     | |_______________________________^
[INFO] [stdout] ...
[INFO] [stdout] 186 | / extern "C" {
[INFO] [stdout] 187 | |     pub fn write(fd: i32, buf: *const i8, len: i32) -> i32;
[INFO] [stdout] 188 | |     pub fn lseek(fd: i32, offset: u64, whence: i32) -> u64;
[INFO] [stdout] 189 | |     pub fn read(fd: i32, buf: *mut i8, len: i32) -> i32;
[INFO] [stdout] 190 | |     pub fn ioctl(fd: i32, req: u64, term: *mut Termios) -> i32;
[INFO] [stdout] 191 | | }
[INFO] [stdout]     | |_- rustdoc does not generate documentation for extern block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.80s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/io_synesthesist-720701a242506316)
[INFO] running `Command { std: "docker" "inspect" "a65b7bceef32ed2167f80649933cfc120bc642ccaa98bb45e53b33e3c83246c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a65b7bceef32ed2167f80649933cfc120bc642ccaa98bb45e53b33e3c83246c0", kill_on_drop: false }`
[INFO] [stdout] a65b7bceef32ed2167f80649933cfc120bc642ccaa98bb45e53b33e3c83246c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e79c1489e919aa5a784f44b334cf6c0e23160271475627ab1adc62cda08053ec
[INFO] running `Command { std: "docker" "start" "-a" "e79c1489e919aa5a784f44b334cf6c0e23160271475627ab1adc62cda08053ec", kill_on_drop: false }`
[INFO] [stderr] warning: unused doc comment
[INFO] [stdout] 
[INFO] [stderr]    --> src/ffi.rs:182:1
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 182 | / /// The `C` extern is list of system call from libc required
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 183 | | /// by the standard in/out put.
[INFO] [stdout] 
[INFO] [stderr]     | |_______________________________^
[INFO] [stderr] ...
[INFO] [stderr] 186 | / extern "C" {
[INFO] [stderr] 187 | |     pub fn write(fd: i32, buf: *const i8, len: i32) -> i32;
[INFO] [stderr] 188 | |     pub fn lseek(fd: i32, offset: u64, whence: i32) -> u64;
[INFO] [stderr] 189 | |     pub fn read(fd: i32, buf: *mut i8, len: i32) -> i32;
[INFO] [stderr] 190 | |     pub fn ioctl(fd: i32, req: u64, term: *mut Termios) -> i32;
[INFO] [stderr] 191 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for extern block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: use `//` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: `io-synesthesist` (lib) generated 1 warning
[INFO] [stderr] warning: `io-synesthesist` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/io_synesthesist-720701a242506316)
[INFO] [stderr]    Doc-tests io-synesthesist
[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" "e79c1489e919aa5a784f44b334cf6c0e23160271475627ab1adc62cda08053ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79c1489e919aa5a784f44b334cf6c0e23160271475627ab1adc62cda08053ec", kill_on_drop: false }`
[INFO] [stdout] e79c1489e919aa5a784f44b334cf6c0e23160271475627ab1adc62cda08053ec