[INFO] fetching crate layered-io 0.13.0...
[INFO] testing layered-io-0.13.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate layered-io 0.13.0 into /workspace/builds/worker-116/source
[INFO] validating manifest of crates.io crate layered-io 0.13.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate layered-io 0.13.0
[INFO] finished tweaking crates.io crate layered-io 0.13.0
[INFO] tweaked toml for crates.io crate layered-io 0.13.0 written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] adabf33e03c6b4f255fefd65b169c2f59d692f85097248806f0b30ea46cd6e23
[INFO] running `Command { std: "docker" "start" "-a" "adabf33e03c6b4f255fefd65b169c2f59d692f85097248806f0b30ea46cd6e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adabf33e03c6b4f255fefd65b169c2f59d692f85097248806f0b30ea46cd6e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adabf33e03c6b4f255fefd65b169c2f59d692f85097248806f0b30ea46cd6e23", kill_on_drop: false }`
[INFO] [stdout] adabf33e03c6b4f255fefd65b169c2f59d692f85097248806f0b30ea46cd6e23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b56320a8f68f667bf8fc46b718f306ddce843bd88186b4c5ae787fc56251841
[INFO] running `Command { std: "docker" "start" "-a" "2b56320a8f68f667bf8fc46b718f306ddce843bd88186b4c5ae787fc56251841", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling io-lifetimes v0.6.1
[INFO] [stderr]    Compiling io-extras v0.14.0
[INFO] [stderr]    Compiling layered-io v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling duplex v0.12.0
[INFO] [stderr]    Compiling os_pipe v1.0.1
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/bufferable.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn abandon(&mut self) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 104 |         self.as_mut().abandon()
[INFO] [stdout]     |         ----------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "2b56320a8f68f667bf8fc46b718f306ddce843bd88186b4c5ae787fc56251841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b56320a8f68f667bf8fc46b718f306ddce843bd88186b4c5ae787fc56251841", kill_on_drop: false }`
[INFO] [stdout] 2b56320a8f68f667bf8fc46b718f306ddce843bd88186b4c5ae787fc56251841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb332cf7a46e34e0efc6563b9998a3db87dce72329a6758f80aa97d7c6ca8d7f
[INFO] running `Command { std: "docker" "start" "-a" "fb332cf7a46e34e0efc6563b9998a3db87dce72329a6758f80aa97d7c6ca8d7f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling layered-io v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/bufferable.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn abandon(&mut self) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 104 |         self.as_mut().abandon()
[INFO] [stdout]     |         ----------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/bufferable.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn abandon(&mut self) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 104 |         self.as_mut().abandon()
[INFO] [stdout]     |         ----------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.89s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/layered_io-22c537557f021ccf)
[INFO] running `Command { std: "docker" "inspect" "fb332cf7a46e34e0efc6563b9998a3db87dce72329a6758f80aa97d7c6ca8d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb332cf7a46e34e0efc6563b9998a3db87dce72329a6758f80aa97d7c6ca8d7f", kill_on_drop: false }`
[INFO] [stdout] fb332cf7a46e34e0efc6563b9998a3db87dce72329a6758f80aa97d7c6ca8d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 213d6956f646ac8cb1900e56084a9d28a88d1f3534141a1a1b57089ed15949d9
[INFO] running `Command { std: "docker" "start" "-a" "213d6956f646ac8cb1900e56084a9d28a88d1f3534141a1a1b57089ed15949d9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/bufferable.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn abandon(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 104 |         self.as_mut().abandon()
[INFO] [stderr]     |         ----------------------- recursive call site
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: `layered-io` (lib) generated 1 warning
[INFO] [stderr] warning: `layered-io` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/layered_io-22c537557f021ccf)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test layered_duplexer::test_layered_duplexion ... ok
[INFO] [stdout] test slice_reader::test_slice_read ... ok
[INFO] [stdout] test layered_reader::test_layered_reader ... ok
[INFO] [stdout] test slice_reader::test_slice_read_with_status ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests layered-io
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "213d6956f646ac8cb1900e56084a9d28a88d1f3534141a1a1b57089ed15949d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213d6956f646ac8cb1900e56084a9d28a88d1f3534141a1a1b57089ed15949d9", kill_on_drop: false }`
[INFO] [stdout] 213d6956f646ac8cb1900e56084a9d28a88d1f3534141a1a1b57089ed15949d9