[INFO] fetching crate framebuffer-manager 0.1.0...
[INFO] testing framebuffer-manager-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate framebuffer-manager 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate framebuffer-manager 0.1.0
[INFO] finished tweaking crates.io crate framebuffer-manager 0.1.0
[INFO] tweaked toml for crates.io crate framebuffer-manager 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate framebuffer-manager 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to highest compatible versions
[INFO] [stderr]       Adding framebuffer v0.1.8 (available: v0.3.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded framebuffer v0.1.8
[INFO] [stderr]   Downloaded memmap v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616
[INFO] running `Command { std: "docker" "start" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling memmap v0.5.2
[INFO] [stderr]    Compiling framebuffer v0.1.8
[INFO] [stderr]    Compiling framebuffer-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling framebuffer-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:261:7
[INFO] [stdout]     |
[INFO] [stdout] 261 |         let mut win = &mut fm.windows[0];
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `win`
[INFO] [stdout]    --> src/lib.rs:261:7
[INFO] [stdout]     |
[INFO] [stdout] 261 |         let mut win = &mut fm.windows[0];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_win`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:261:7
[INFO] [stderr]     |
[INFO] [stderr] 261 |         let mut win = &mut fm.windows[0];
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `win`
[INFO] [stderr]    --> src/lib.rs:261:7
[INFO] [stderr]     |
[INFO] [stderr] 261 |         let mut win = &mut fm.windows[0];
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_win`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `framebuffer-manager` (lib test) generated 2 warnings (run `cargo fix --lib -p framebuffer-manager --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/framebuffer_manager-af2cea98a918c804)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::single_square ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::single_square stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::single_square' (198) panicked at src/lib.rs:168:56:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: FramebufferError { kind: IoError, details: "description() is deprecated; use Display" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59fd02fec231 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x59fd030004da - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x59fd02ff06cc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x59fd02fc8776 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x59fd02fe48e9 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x59fd02f806e0 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x59fd02fe4aa2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x59fd02fc8822 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x59fd02fc15a9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x59fd02fc941d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x59fd03000c0c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x59fd030009e2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x59fd02f73683 - <framebuffer_manager[b8ff5b331a814189]::tests::single_square::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x59fd02f739cb - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x59fd02f81035 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x59fd02f7a8f4 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x59fd02f84192 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x59fd02febb09 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x739174cc0dfa - <unknown>
[INFO] [stdout]   19:     0x739174d543d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::single_square
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616", kill_on_drop: false }`
[INFO] [stdout] b7c6e203338e55106fdf0eecf3859776bee91d34e701e8dd58e9c6d134c33616
