[INFO] fetching crate byte_buffer 0.1.2...
[INFO] testing byte_buffer-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate byte_buffer 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate byte_buffer 0.1.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byte_buffer 0.1.2
[INFO] finished tweaking crates.io crate byte_buffer 0.1.2
[INFO] tweaked toml for crates.io crate byte_buffer 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate byte_buffer 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 537deace27cfcb13a33bc1665f03aca9cfd1dfa3d0b8a95a04a3c95a015bcd13
[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" "537deace27cfcb13a33bc1665f03aca9cfd1dfa3d0b8a95a04a3c95a015bcd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "537deace27cfcb13a33bc1665f03aca9cfd1dfa3d0b8a95a04a3c95a015bcd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "537deace27cfcb13a33bc1665f03aca9cfd1dfa3d0b8a95a04a3c95a015bcd13", kill_on_drop: false }`
[INFO] [stdout] 537deace27cfcb13a33bc1665f03aca9cfd1dfa3d0b8a95a04a3c95a015bcd13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 547a4825403f43b7d47929262a0127575c36a4c93cc762fc808c50861610c79b
[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" "547a4825403f43b7d47929262a0127575c36a4c93cc762fc808c50861610c79b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling byte_buffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "547a4825403f43b7d47929262a0127575c36a4c93cc762fc808c50861610c79b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547a4825403f43b7d47929262a0127575c36a4c93cc762fc808c50861610c79b", kill_on_drop: false }`
[INFO] [stdout] 547a4825403f43b7d47929262a0127575c36a4c93cc762fc808c50861610c79b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4567823e96a266e955e4a7b6625015cf1a5e83f2ff810646b20fa0391dcfd96d
[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" "4567823e96a266e955e4a7b6625015cf1a5e83f2ff810646b20fa0391dcfd96d", kill_on_drop: false }`
[INFO] [stderr]    Compiling byte_buffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "4567823e96a266e955e4a7b6625015cf1a5e83f2ff810646b20fa0391dcfd96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4567823e96a266e955e4a7b6625015cf1a5e83f2ff810646b20fa0391dcfd96d", kill_on_drop: false }`
[INFO] [stdout] 4567823e96a266e955e4a7b6625015cf1a5e83f2ff810646b20fa0391dcfd96d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] e68c2316d66e9db9a7901443b6ea91495d1b9f81add0ca67eecbcb7b63cd1739
[INFO] running `Command { std: "docker" "start" "-a" "e68c2316d66e9db9a7901443b6ea91495d1b9f81add0ca67eecbcb7b63cd1739", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/byte_buffer-49b11beaa2e08e3a
[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] [stderr]    Doc-tests byte_buffer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 15) stdout ----
[INFO] [stdout] error[E0599]: no method named `as_readable` found for struct `BufferSlice` in the current scope
[INFO] [stdout]   --> src/lib.rs:31:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |   assert_eq!(buffer.as_readable().unwrap(), [0b101, 0b101, 0b101]);
[INFO] [stdout]    |                     ^^^^^^^^^^^ method not found in `BufferSlice`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 15)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "e68c2316d66e9db9a7901443b6ea91495d1b9f81add0ca67eecbcb7b63cd1739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e68c2316d66e9db9a7901443b6ea91495d1b9f81add0ca67eecbcb7b63cd1739", kill_on_drop: false }`
[INFO] [stdout] e68c2316d66e9db9a7901443b6ea91495d1b9f81add0ca67eecbcb7b63cd1739