[INFO] crate fibonacci_codec 0.1.1 is already in cache
[INFO] testing fibonacci_codec-0.1.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate fibonacci_codec 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate fibonacci_codec 0.1.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fibonacci_codec 0.1.1
[INFO] finished tweaking crates.io crate fibonacci_codec 0.1.1
[INFO] tweaked toml for crates.io crate fibonacci_codec 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c1865b3a0f07a43d6bcd80048c13e7f2a3fc817f6ade93c6ab5e9d3c3ab1945
[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" "3c1865b3a0f07a43d6bcd80048c13e7f2a3fc817f6ade93c6ab5e9d3c3ab1945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c1865b3a0f07a43d6bcd80048c13e7f2a3fc817f6ade93c6ab5e9d3c3ab1945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c1865b3a0f07a43d6bcd80048c13e7f2a3fc817f6ade93c6ab5e9d3c3ab1945", kill_on_drop: false }`
[INFO] [stdout] 3c1865b3a0f07a43d6bcd80048c13e7f2a3fc817f6ade93c6ab5e9d3c3ab1945
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fa19069679e67b7e17f02fcd2cb399e9603ce1dfe0557eb5b26afb620fa9e10
[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" "1fa19069679e67b7e17f02fcd2cb399e9603ce1dfe0557eb5b26afb620fa9e10", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling fibonacci_codec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "1fa19069679e67b7e17f02fcd2cb399e9603ce1dfe0557eb5b26afb620fa9e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa19069679e67b7e17f02fcd2cb399e9603ce1dfe0557eb5b26afb620fa9e10", kill_on_drop: false }`
[INFO] [stdout] 1fa19069679e67b7e17f02fcd2cb399e9603ce1dfe0557eb5b26afb620fa9e10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b1e29651f50b60b00a597e2c4c6f84f8bdbb983db0504be5ad5d3a5a010a95d
[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" "2b1e29651f50b60b00a597e2c4c6f84f8bdbb983db0504be5ad5d3a5a010a95d", kill_on_drop: false }`
[INFO] [stderr]    Compiling fibonacci_codec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "2b1e29651f50b60b00a597e2c4c6f84f8bdbb983db0504be5ad5d3a5a010a95d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b1e29651f50b60b00a597e2c4c6f84f8bdbb983db0504be5ad5d3a5a010a95d", kill_on_drop: false }`
[INFO] [stdout] 2b1e29651f50b60b00a597e2c4c6f84f8bdbb983db0504be5ad5d3a5a010a95d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] b682a86de423b8c1f31da0939ee9af0c57c4fbfd7a342f4a2353aa8af902bcd3
[INFO] running `Command { std: "docker" "start" "-a" "b682a86de423b8c1f31da0939ee9af0c57c4fbfd7a342f4a2353aa8af902bcd3", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/encode.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/encode.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[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
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fibonacci_codec-82562ab01b30ff60
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/decode-69afb50d3f6fdb57
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_roundtrip_u64 ... ok
[INFO] [stdout] test test_roundtrip_u8 ... ok
[INFO] [stdout] test test_overflow_from_fib_elt ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/encode-2ec16c78c1821fe6
[INFO] [stdout] test test_overflow_from_addition ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_slices_singles ... ok
[INFO] [stdout] test test_slices_multi ... ok
[INFO] [stderr]    Doc-tests fibonacci_codec
[INFO] [stdout] test test_factor_wikipedia ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b682a86de423b8c1f31da0939ee9af0c57c4fbfd7a342f4a2353aa8af902bcd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b682a86de423b8c1f31da0939ee9af0c57c4fbfd7a342f4a2353aa8af902bcd3", kill_on_drop: false }`
[INFO] [stdout] b682a86de423b8c1f31da0939ee9af0c57c4fbfd7a342f4a2353aa8af902bcd3