[INFO] fetching crate sylt-std 0.1.0...
[INFO] testing sylt-std-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate sylt-std 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sylt-std 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sylt-std 0.1.0
[INFO] finished tweaking crates.io crate sylt-std 0.1.0
[INFO] tweaked toml for crates.io crate sylt-std 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 763861dca41951b97990723184211a14ab87c6e1064e3d7eb0ad82c653330d7f
[INFO] running `Command { std: "docker" "start" "-a" "763861dca41951b97990723184211a14ab87c6e1064e3d7eb0ad82c653330d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "763861dca41951b97990723184211a14ab87c6e1064e3d7eb0ad82c653330d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763861dca41951b97990723184211a14ab87c6e1064e3d7eb0ad82c653330d7f", kill_on_drop: false }`
[INFO] [stdout] 763861dca41951b97990723184211a14ab87c6e1064e3d7eb0ad82c653330d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e156757e63459fc277920d711351e4592329dbb0365bdb5d9665538eef24110
[INFO] running `Command { std: "docker" "start" "-a" "9e156757e63459fc277920d711351e4592329dbb0365bdb5d9665538eef24110", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling khronos_api v3.1.0
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[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling ttf-parser v0.13.3
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling either v1.6.1
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[INFO] [stderr]    Compiling beef v0.5.1
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[INFO] [stderr]    Compiling linked-hash-map v0.5.4
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[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling riff v1.0.1
[INFO] [stderr]    Compiling owo-colors v2.1.0
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[INFO] [stderr]    Compiling rayon v1.5.1
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[INFO] [stderr]    Compiling gl_generator v0.14.0
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[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
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[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling approx v0.5.0
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[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]    Compiling owned_ttf_parser v0.13.2
[INFO] [stderr]    Compiling ab_glyph v0.2.12
[INFO] [stderr]    Compiling glyph_brush_layout v0.2.3
[INFO] [stderr]    Compiling twox-hash v1.6.1
[INFO] [stderr]    Compiling glyph_brush_draw_cache v0.1.5
[INFO] [stderr]    Compiling glyph_brush v0.7.3
[INFO] [stderr]    Compiling luminance-derive v0.6.3
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling lingon-macro v0.1.0
[INFO] [stderr]    Compiling sylt-macro v0.1.0
[INFO] [stderr]    Compiling luminance v0.43.2
[INFO] [stderr]    Compiling luminance-gl v0.16.1
[INFO] [stderr]    Compiling luminance-glyph v0.2.0
[INFO] [stderr]    Compiling luminance-windowing v0.9.3
[INFO] [stderr]    Compiling luminance-sdl2 v0.2.2
[INFO] [stderr]    Compiling lingon v0.1.0
[INFO] [stderr]    Compiling logos v0.12.0
[INFO] [stderr]    Compiling sylt-tokenizer v0.1.0
[INFO] [stderr]    Compiling sylt-common v0.1.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling sylt-std v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/network.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         global_handles.lock().unwrap().insert(HashMap::new());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/network.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 | /                 server_handle
[INFO] [stdout] 167 | |                     .borrow_mut()
[INFO] [stdout] 168 | |                     .insert(stream);
[INFO] [stdout]     | |____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.55s
[INFO] running `Command { std: "docker" "inspect" "9e156757e63459fc277920d711351e4592329dbb0365bdb5d9665538eef24110", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e156757e63459fc277920d711351e4592329dbb0365bdb5d9665538eef24110", kill_on_drop: false }`
[INFO] [stdout] 9e156757e63459fc277920d711351e4592329dbb0365bdb5d9665538eef24110
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1387d1395fd3fec25e3ae7ebc52a9bc37bb92f3c9d191589a13d379ec4c505b8
[INFO] running `Command { std: "docker" "start" "-a" "1387d1395fd3fec25e3ae7ebc52a9bc37bb92f3c9d191589a13d379ec4c505b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling sylt-std v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/network.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         global_handles.lock().unwrap().insert(HashMap::new());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/network.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 | /                 server_handle
[INFO] [stdout] 167 | |                     .borrow_mut()
[INFO] [stdout] 168 | |                     .insert(stream);
[INFO] [stdout]     | |____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/network.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         global_handles.lock().unwrap().insert(HashMap::new());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stdout]    --> src/network.rs:166:17
[INFO] [stdout]     |
[INFO] [stdout] 166 | /                 server_handle
[INFO] [stdout] 167 | |                     .borrow_mut()
[INFO] [stdout] 168 | |                     .insert(stream);
[INFO] [stdout]     | |____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to set a value, consider assignment instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.06s
[INFO] running `Command { std: "docker" "inspect" "1387d1395fd3fec25e3ae7ebc52a9bc37bb92f3c9d191589a13d379ec4c505b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1387d1395fd3fec25e3ae7ebc52a9bc37bb92f3c9d191589a13d379ec4c505b8", kill_on_drop: false }`
[INFO] [stdout] 1387d1395fd3fec25e3ae7ebc52a9bc37bb92f3c9d191589a13d379ec4c505b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf3850317cbd0bbeb331ce1fb11ce02b8f2f944e4c4311dabbffe97ce2e974af
[INFO] running `Command { std: "docker" "start" "-a" "cf3850317cbd0bbeb331ce1fb11ce02b8f2f944e4c4311dabbffe97ce2e974af", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stderr]    --> src/network.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         global_handles.lock().unwrap().insert(HashMap::new());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to set a value, consider assignment instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Option::<T>::insert` that must be used
[INFO] [stderr]    --> src/network.rs:166:17
[INFO] [stderr]     |
[INFO] [stderr] 166 | /                 server_handle
[INFO] [stderr] 167 | |                     .borrow_mut()
[INFO] [stderr] 168 | |                     .insert(stream);
[INFO] [stderr]     | |____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to set a value, consider assignment instead
[INFO] [stderr] 
[INFO] [stderr] warning: `sylt-std` (lib) generated 2 warnings
[INFO] [stderr] warning: `sylt-std` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sylt_std-1c15a4165484c0b2)
[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] [stderr]    Doc-tests sylt-std
[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" "cf3850317cbd0bbeb331ce1fb11ce02b8f2f944e4c4311dabbffe97ce2e974af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3850317cbd0bbeb331ce1fb11ce02b8f2f944e4c4311dabbffe97ce2e974af", kill_on_drop: false }`
[INFO] [stdout] cf3850317cbd0bbeb331ce1fb11ce02b8f2f944e4c4311dabbffe97ce2e974af