[INFO] fetching crate varint 0.9.0...
[INFO] testing varint-0.9.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate varint 0.9.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate varint 0.9.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate varint 0.9.0
[INFO] finished tweaking crates.io crate varint 0.9.0
[INFO] tweaked toml for crates.io crate varint 0.9.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded io_operations v0.2.0
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8882bb3022a0befa6f5a86cf4a9eca85901beb1c8424226d9d18a2b07bbc7a4d
[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" "8882bb3022a0befa6f5a86cf4a9eca85901beb1c8424226d9d18a2b07bbc7a4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8882bb3022a0befa6f5a86cf4a9eca85901beb1c8424226d9d18a2b07bbc7a4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8882bb3022a0befa6f5a86cf4a9eca85901beb1c8424226d9d18a2b07bbc7a4d", kill_on_drop: false }`
[INFO] [stdout] 8882bb3022a0befa6f5a86cf4a9eca85901beb1c8424226d9d18a2b07bbc7a4d
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2df4d62992282428a2053de09a5f92259a6295345d7b2cfee6c9ec577266d10
[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" "e2df4d62992282428a2053de09a5f92259a6295345d7b2cfee6c9ec577266d10", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit_utils v0.1.1
[INFO] [stderr]    Compiling varint v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `next_byte` is never read
[INFO] [stdout]   --> src/rawio.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut next_byte: u8 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "e2df4d62992282428a2053de09a5f92259a6295345d7b2cfee6c9ec577266d10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2df4d62992282428a2053de09a5f92259a6295345d7b2cfee6c9ec577266d10", kill_on_drop: false }`
[INFO] [stdout] e2df4d62992282428a2053de09a5f92259a6295345d7b2cfee6c9ec577266d10
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de2c0ded6c84aff33de26c8699ac761a5f042468f3ce929efd3f64d7d3832610
[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" "de2c0ded6c84aff33de26c8699ac761a5f042468f3ce929efd3f64d7d3832610", kill_on_drop: false }`
[INFO] [stderr]    Compiling varint v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `next_byte` is never read
[INFO] [stdout]   --> src/rawio.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut next_byte: u8 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `next_byte` is never read
[INFO] [stdout]   --> src/rawio.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut next_byte: u8 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "de2c0ded6c84aff33de26c8699ac761a5f042468f3ce929efd3f64d7d3832610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de2c0ded6c84aff33de26c8699ac761a5f042468f3ce929efd3f64d7d3832610", kill_on_drop: false }`
[INFO] [stdout] de2c0ded6c84aff33de26c8699ac761a5f042468f3ce929efd3f64d7d3832610
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b4e00ea410325258f509aa06c13b4810ca1b39f9a520e2c168cde0e48001799
[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" "6b4e00ea410325258f509aa06c13b4810ca1b39f9a520e2c168cde0e48001799", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `next_byte` is never read
[INFO] [stderr]   --> src/rawio.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut next_byte: u8 = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_byte` is never read
[INFO] [stderr]   --> src/rawio.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut next_byte: u8 = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/varint-08c9777ddc370645
[INFO] [stdout] running 7 tests
[INFO] [stdout] test zigzag::tests::test_u8_i8_zigzag ... ok
[INFO] [stdout] test zigzag::tests::test_u64_i64_zigzag ... ok
[INFO] [stdout] test zigzag::tests::test_u16_i16_zigzag ... ok
[INFO] [stdout] test rawio::test::test_read_write_unsigned_varint_32 ... ok
[INFO] [stdout] test rawio::test::test_read_write_signed_varint_32 ... ok
[INFO] [stdout] test zigzag::tests::test_u32_i32_zigzag ... ok
[INFO] [stdout] test rawio::test::test_read_write_lots_of_unsigned_varint_32 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests varint
[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] running `Command { std: "docker" "inspect" "6b4e00ea410325258f509aa06c13b4810ca1b39f9a520e2c168cde0e48001799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b4e00ea410325258f509aa06c13b4810ca1b39f9a520e2c168cde0e48001799", kill_on_drop: false }`
[INFO] [stdout] 6b4e00ea410325258f509aa06c13b4810ca1b39f9a520e2c168cde0e48001799
