[INFO] fetching crate sringbuf 0.1.2...
[INFO] testing sringbuf-0.1.2 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate sringbuf 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate sringbuf 0.1.2
[INFO] finished tweaking crates.io crate sringbuf 0.1.2
[INFO] tweaked toml for crates.io crate sringbuf 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sringbuf 0.1.2 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sringbuf 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 656ef95d310430e9e257725f0ddb81fa1233dcd13bdee2483a8430b823fe034f
[INFO] running `Command { std: "docker" "start" "-a" "656ef95d310430e9e257725f0ddb81fa1233dcd13bdee2483a8430b823fe034f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "656ef95d310430e9e257725f0ddb81fa1233dcd13bdee2483a8430b823fe034f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "656ef95d310430e9e257725f0ddb81fa1233dcd13bdee2483a8430b823fe034f", kill_on_drop: false }`
[INFO] [stdout] 656ef95d310430e9e257725f0ddb81fa1233dcd13bdee2483a8430b823fe034f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a94c5431f1195d74e0b1cd601903f2994bff64e34857a9ebdede5f0482d26b6a
[INFO] running `Command { std: "docker" "start" "-a" "a94c5431f1195d74e0b1cd601903f2994bff64e34857a9ebdede5f0482d26b6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling sringbuf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "a94c5431f1195d74e0b1cd601903f2994bff64e34857a9ebdede5f0482d26b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94c5431f1195d74e0b1cd601903f2994bff64e34857a9ebdede5f0482d26b6a", kill_on_drop: false }`
[INFO] [stdout] a94c5431f1195d74e0b1cd601903f2994bff64e34857a9ebdede5f0482d26b6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6649b283670dbe6a85b09382e7cc295f81e3d3ff458de72ec606f44e02168cf7
[INFO] running `Command { std: "docker" "start" "-a" "6649b283670dbe6a85b09382e7cc295f81e3d3ff458de72ec606f44e02168cf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling sringbuf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `read_wrap_around` is never used
[INFO] [stdout]    --> src/lib.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn read_wrap_around() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "6649b283670dbe6a85b09382e7cc295f81e3d3ff458de72ec606f44e02168cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6649b283670dbe6a85b09382e7cc295f81e3d3ff458de72ec606f44e02168cf7", kill_on_drop: false }`
[INFO] [stdout] 6649b283670dbe6a85b09382e7cc295f81e3d3ff458de72ec606f44e02168cf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b81e1fc3c967f736759817b0aaac7a2d0f2bf5400ed6f227757bc4030d98030e
[INFO] running `Command { std: "docker" "start" "-a" "b81e1fc3c967f736759817b0aaac7a2d0f2bf5400ed6f227757bc4030d98030e", kill_on_drop: false }`
[INFO] [stderr] warning: function `read_wrap_around` is never used
[INFO] [stderr]    --> src/lib.rs:159:8
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn read_wrap_around() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sringbuf` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sringbuf-3771afd01088ae15)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::read_empty ... ok
[INFO] [stdout] test tests::write_wrap_around ... ok
[INFO] [stdout] test tests::new_valid_inputs ... ok
[INFO] [stdout] test tests::read_first ... ok
[INFO] [stdout] test tests::write_valid_inputs_first ... ok
[INFO] [stdout] test tests::new_invalid_input - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sringbuf
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - RingBuffer<T,N>::read (line 58) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T,N>::new (line 19) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T,N>::write (line 39) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b81e1fc3c967f736759817b0aaac7a2d0f2bf5400ed6f227757bc4030d98030e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b81e1fc3c967f736759817b0aaac7a2d0f2bf5400ed6f227757bc4030d98030e", kill_on_drop: false }`
[INFO] [stdout] b81e1fc3c967f736759817b0aaac7a2d0f2bf5400ed6f227757bc4030d98030e