[INFO] updating cached repository https://github.com/ahouts/mbuffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e198c4cd8762a038dde0af1710f32f20a0986edf
[INFO] testing ahouts/mbuffer against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahouts%2Fmbuffer" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahouts/mbuffer on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ahouts/mbuffer
[INFO] finished tweaking git repo https://github.com/ahouts/mbuffer
[INFO] tweaked toml for git repo https://github.com/ahouts/mbuffer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ahouts/mbuffer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a9df782b4c5c3c05ee52f4f6571e7af5d01cd0a7578b26016216664b628de5f
[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" "7a9df782b4c5c3c05ee52f4f6571e7af5d01cd0a7578b26016216664b628de5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a9df782b4c5c3c05ee52f4f6571e7af5d01cd0a7578b26016216664b628de5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a9df782b4c5c3c05ee52f4f6571e7af5d01cd0a7578b26016216664b628de5f", kill_on_drop: false }`
[INFO] [stdout] 7a9df782b4c5c3c05ee52f4f6571e7af5d01cd0a7578b26016216664b628de5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d938f3e256dbea7ac870b1a123fab0224cc8347d3f6bce6327392c99d9876a8
[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" "0d938f3e256dbea7ac870b1a123fab0224cc8347d3f6bce6327392c99d9876a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling mbuffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buff/mod.rs:17:70
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(segment_length: usize, buffer_size: usize, mut r: Box<Read + Send>, mut w: Box<Write + Send>) -> Self {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn Read + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buff/mod.rs:17:95
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(segment_length: usize, buffer_size: usize, mut r: Box<Read + Send>, mut w: Box<Write + Send>) -> Self {
[INFO] [stdout]    |                                                                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Write + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
[INFO] running `Command { std: "docker" "inspect" "0d938f3e256dbea7ac870b1a123fab0224cc8347d3f6bce6327392c99d9876a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d938f3e256dbea7ac870b1a123fab0224cc8347d3f6bce6327392c99d9876a8", kill_on_drop: false }`
[INFO] [stdout] 0d938f3e256dbea7ac870b1a123fab0224cc8347d3f6bce6327392c99d9876a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71cdec693a08d8a633bb5023ea9a79dff316cff84ba70520854bb6bc53e364cd
[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" "71cdec693a08d8a633bb5023ea9a79dff316cff84ba70520854bb6bc53e364cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling mbuffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buff/mod.rs:17:70
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(segment_length: usize, buffer_size: usize, mut r: Box<Read + Send>, mut w: Box<Write + Send>) -> Self {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn Read + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buff/mod.rs:17:95
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(segment_length: usize, buffer_size: usize, mut r: Box<Read + Send>, mut w: Box<Write + Send>) -> Self {
[INFO] [stdout]    |                                                                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Write + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "71cdec693a08d8a633bb5023ea9a79dff316cff84ba70520854bb6bc53e364cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71cdec693a08d8a633bb5023ea9a79dff316cff84ba70520854bb6bc53e364cd", kill_on_drop: false }`
[INFO] [stdout] 71cdec693a08d8a633bb5023ea9a79dff316cff84ba70520854bb6bc53e364cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.45.2" "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] 96b73005ca756ab70a8aa324e455fb9b459fef2561eb4bfaa753a1ead6e998a1
[INFO] running `Command { std: "docker" "start" "-a" "96b73005ca756ab70a8aa324e455fb9b459fef2561eb4bfaa753a1ead6e998a1", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buff/mod.rs:17:70
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(segment_length: usize, buffer_size: usize, mut r: Box<Read + Send>, mut w: Box<Write + Send>) -> Self {
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn Read + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buff/mod.rs:17:95
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(segment_length: usize, buffer_size: usize, mut r: Box<Read + Send>, mut w: Box<Write + Send>) -> Self {
[INFO] [stderr]    |                                                                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn Write + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mbuffer-9e97d4e16edee8f1
[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" "96b73005ca756ab70a8aa324e455fb9b459fef2561eb4bfaa753a1ead6e998a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b73005ca756ab70a8aa324e455fb9b459fef2561eb4bfaa753a1ead6e998a1", kill_on_drop: false }`
[INFO] [stdout] 96b73005ca756ab70a8aa324e455fb9b459fef2561eb4bfaa753a1ead6e998a1