[INFO] fetching crate byteio 0.2.3...
[INFO] testing byteio-0.2.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate byteio 0.2.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate byteio 0.2.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byteio 0.2.3
[INFO] finished tweaking crates.io crate byteio 0.2.3
[INFO] tweaked toml for crates.io crate byteio 0.2.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck_macros v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d08f6c9a2baa9e682d29b129ab79cfa9981298480dee9989e6295700abe4515
[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" "8d08f6c9a2baa9e682d29b129ab79cfa9981298480dee9989e6295700abe4515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d08f6c9a2baa9e682d29b129ab79cfa9981298480dee9989e6295700abe4515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d08f6c9a2baa9e682d29b129ab79cfa9981298480dee9989e6295700abe4515", kill_on_drop: false }`
[INFO] [stdout] 8d08f6c9a2baa9e682d29b129ab79cfa9981298480dee9989e6295700abe4515
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3ed3c11e2c833f6efc4f4bd28abe40715cfe89d1f32cfdb071cf38c4199b30a
[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" "f3ed3c11e2c833f6efc4f4bd28abe40715cfe89d1f32cfdb071cf38c4199b30a", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteio v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "f3ed3c11e2c833f6efc4f4bd28abe40715cfe89d1f32cfdb071cf38c4199b30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ed3c11e2c833f6efc4f4bd28abe40715cfe89d1f32cfdb071cf38c4199b30a", kill_on_drop: false }`
[INFO] [stdout] f3ed3c11e2c833f6efc4f4bd28abe40715cfe89d1f32cfdb071cf38c4199b30a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c91f16ca2024e24c86ec6b9b0ce7061aa1978d2bb5f19710949fbbde9caa1468
[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" "c91f16ca2024e24c86ec6b9b0ce7061aa1978d2bb5f19710949fbbde9caa1468", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling byteio v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.33s
[INFO] running `Command { std: "docker" "inspect" "c91f16ca2024e24c86ec6b9b0ce7061aa1978d2bb5f19710949fbbde9caa1468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c91f16ca2024e24c86ec6b9b0ce7061aa1978d2bb5f19710949fbbde9caa1468", kill_on_drop: false }`
[INFO] [stdout] c91f16ca2024e24c86ec6b9b0ce7061aa1978d2bb5f19710949fbbde9caa1468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2021-01-01" "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] e5e2f4a7e35b8dc8ebcd740533ca2fe7e3c641c3374020ab5f1a15529c6a2198
[INFO] running `Command { std: "docker" "start" "-a" "e5e2f4a7e35b8dc8ebcd740533ca2fe7e3c641c3374020ab5f1a15529c6a2198", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/byteio-55fa8cf0b16dfeaa
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::display_error_end_of_stream ... ok
[INFO] [stdout] test test::io_error_from_error_end_of_stream ... ok
[INFO] [stdout] test test::io_error_from_error_nonexhaustive ... ok
[INFO] [stdout] test test::display_error_nonexhaustive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests byteio
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/lib.rs - Reader (line 849) ... ok
[INFO] [stdout] test src/lib.rs - Writer<W>::into_inner (line 1652) ... ok
[INFO] [stdout] test src/lib.rs - ReadBytes (line 250) ... ok
[INFO] [stdout] test src/lib.rs - Writer<W>::new (line 1617) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] test src/lib.rs - Reader::num_bytes_read (line 898) ... ok
[INFO] [stdout] test src/lib.rs - ReadBytes (line 268) ... ok
[INFO] [stdout] test src/lib.rs - WriteBytes (line 992) ... ok
[INFO] [stdout] test src/lib.rs - Writer<W>::num_bytes_written (line 1634) ... ok
[INFO] [stdout] test src/lib.rs - Reader::into_inner (line 918) ... ok
[INFO] [stdout] test src/lib.rs - ReadBytesExt (line 385) ... ok
[INFO] [stdout] test src/lib.rs - Writer (line 1581) ... ok
[INFO] [stdout] test src/lib.rs - Result (line 138) ... ok
[INFO] [stdout] test src/lib.rs - Error::EndOfStream (line 184) ... ok
[INFO] [stdout] test src/lib.rs - WriteBytesExt (line 1103) ... ok
[INFO] [stdout] test src/lib.rs - Reader::new (line 881) ... ok
[INFO] [stdout] test src/lib.rs - prelude (line 115) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5e2f4a7e35b8dc8ebcd740533ca2fe7e3c641c3374020ab5f1a15529c6a2198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e2f4a7e35b8dc8ebcd740533ca2fe7e3c641c3374020ab5f1a15529c6a2198", kill_on_drop: false }`
[INFO] [stdout] e5e2f4a7e35b8dc8ebcd740533ca2fe7e3c641c3374020ab5f1a15529c6a2198