[INFO] cloning repository https://github.com/fol21/rust-broadcast-buffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fol21/rust-broadcast-buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffol21%2Frust-broadcast-buffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffol21%2Frust-broadcast-buffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1491c0a44a6a0fa47d8d4005dcdef3f6deb80337
[INFO] testing fol21/rust-broadcast-buffer against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffol21%2Frust-broadcast-buffer" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fol21/rust-broadcast-buffer on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fol21/rust-broadcast-buffer
[INFO] finished tweaking git repo https://github.com/fol21/rust-broadcast-buffer
[INFO] tweaked toml for git repo https://github.com/fol21/rust-broadcast-buffer written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/fol21/rust-broadcast-buffer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4173d451d9a93f0437bba2112e93f734e17691bd96de8e68560b9b0fc8b6985a
[INFO] running `Command { std: "docker" "start" "-a" "4173d451d9a93f0437bba2112e93f734e17691bd96de8e68560b9b0fc8b6985a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4173d451d9a93f0437bba2112e93f734e17691bd96de8e68560b9b0fc8b6985a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4173d451d9a93f0437bba2112e93f734e17691bd96de8e68560b9b0fc8b6985a", kill_on_drop: false }`
[INFO] [stdout] 4173d451d9a93f0437bba2112e93f734e17691bd96de8e68560b9b0fc8b6985a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96cc6cb896f59ee759a8eeddc72351f207efe78fcfbc9568f913aa06f6b1d730
[INFO] running `Command { std: "docker" "start" "-a" "96cc6cb896f59ee759a8eeddc72351f207efe78fcfbc9568f913aa06f6b1d730", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rust-broadcast-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `numprod`
[INFO] [stdout]   --> src/buffer.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     numprod: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `data`
[INFO] [stdout]    --> src/buffer.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn data(&self, index: usize) -> Option<T>
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/buffer.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn len(&self) -> usize
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `numpos`
[INFO] [stdout]    --> src/buffer.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn numpos(&self) -> usize {self.numpos} 
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `numprod`
[INFO] [stdout]    --> src/buffer.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn numprod(&self) -> usize {self.numprod}
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `numcons`
[INFO] [stdout]    --> src/buffer.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn numcons(&self) -> usize {self.numcons}
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `free_slots`
[INFO] [stdout]    --> src/buffer.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn free_slots(&self) -> usize {self.free_slots}
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/buffer.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         write!(f, "Buffer[ ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/buffer.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |             write!(f, "{}({}); ", d.data.unwrap_or_default(), d.to_read);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "96cc6cb896f59ee759a8eeddc72351f207efe78fcfbc9568f913aa06f6b1d730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96cc6cb896f59ee759a8eeddc72351f207efe78fcfbc9568f913aa06f6b1d730", kill_on_drop: false }`
[INFO] [stdout] 96cc6cb896f59ee759a8eeddc72351f207efe78fcfbc9568f913aa06f6b1d730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7951e2136f11bc8344b83f2c97d2f45e8a0367f015908f85edd4fcf7f6931d21
[INFO] running `Command { std: "docker" "start" "-a" "7951e2136f11bc8344b83f2c97d2f45e8a0367f015908f85edd4fcf7f6931d21", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-broadcast-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/buffer.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn len(&self) -> usize
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `free_slots`
[INFO] [stdout]    --> src/buffer.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn free_slots(&self) -> usize {self.free_slots}
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/buffer.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         write!(f, "Buffer[ ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/buffer.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |             write!(f, "{}({}); ", d.data.unwrap_or_default(), d.to_read);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "7951e2136f11bc8344b83f2c97d2f45e8a0367f015908f85edd4fcf7f6931d21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7951e2136f11bc8344b83f2c97d2f45e8a0367f015908f85edd4fcf7f6931d21", kill_on_drop: false }`
[INFO] [stdout] 7951e2136f11bc8344b83f2c97d2f45e8a0367f015908f85edd4fcf7f6931d21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 85124a69d3729ed1a0f94b5b18809872d63fb6a4c4c830d86fefafeb644af5a1
[INFO] running `Command { std: "docker" "start" "-a" "85124a69d3729ed1a0f94b5b18809872d63fb6a4c4c830d86fefafeb644af5a1", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]    --> src/buffer.rs:115:12
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub fn len(&self) -> usize
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `free_slots`
[INFO] [stderr]    --> src/buffer.rs:136:12
[INFO] [stderr]     |
[INFO] [stderr] 136 |     pub fn free_slots(&self) -> usize {self.free_slots}
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/buffer.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         write!(f, "Buffer[ ");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/buffer.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |             write!(f, "{}({}); ", d.data.unwrap_or_default(), d.to_read);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-broadcast-buffer` (bin "rust-broadcast-buffer" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_broadcast_buffer-cbbc6c4844d77333)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::tests::test_pop_from_buffer ... ok
[INFO] [stdout] test test::tests::test_create_buffer ... ok
[INFO] [stdout] test test::tests::test_push_to_buffer ... ok
[INFO] [stdout] test test::tests::test_consume ... ok
[INFO] [stdout] test test::tests::test_deposit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "85124a69d3729ed1a0f94b5b18809872d63fb6a4c4c830d86fefafeb644af5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85124a69d3729ed1a0f94b5b18809872d63fb6a4c4c830d86fefafeb644af5a1", kill_on_drop: false }`
[INFO] [stdout] 85124a69d3729ed1a0f94b5b18809872d63fb6a4c4c830d86fefafeb644af5a1