[INFO] fetching crate ft2 0.2.1...
[INFO] checking ft2-0.2.1 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate ft2 0.2.1 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate ft2 0.2.1 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ft2 0.2.1
[INFO] finished tweaking crates.io crate ft2 0.2.1
[INFO] tweaked toml for crates.io crate ft2 0.2.1 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate crates.io crate ft2 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cfd91e98f11dc218e1b670167e985aa446e7cf6fbfd864a19863e7e33a564a2
[INFO] running `Command { std: "docker" "start" "-a" "3cfd91e98f11dc218e1b670167e985aa446e7cf6fbfd864a19863e7e33a564a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cfd91e98f11dc218e1b670167e985aa446e7cf6fbfd864a19863e7e33a564a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cfd91e98f11dc218e1b670167e985aa446e7cf6fbfd864a19863e7e33a564a2", kill_on_drop: false }`
[INFO] [stdout] 3cfd91e98f11dc218e1b670167e985aa446e7cf6fbfd864a19863e7e33a564a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 023cd899a9acbc9a8ebae3be8dc5ab7a5c9df28facbfdd895630c64109c21ae2
[INFO] running `Command { std: "docker" "start" "-a" "023cd899a9acbc9a8ebae3be8dc5ab7a5c9df28facbfdd895630c64109c21ae2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking utf v0.1.6
[INFO] [stderr]     Checking flags v0.1.5
[INFO] [stderr]    Compiling freetype-sys v0.7.1
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]     Checking fallible v0.1.3
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking null-terminated v0.3.15
[INFO] [stderr]     Checking ft2 v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `String: AsRef<null_terminated::Nul<u8>>` is not satisfied
[INFO] [stdout]   --> examples/glyph_outline.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let face = library.new_face(font, 0).unwrap();
[INFO] [stdout]    |                        -------- ^^^^ the trait `AsRef<null_terminated::Nul<u8>>` is not implemented for `String`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following implementations were found:
[INFO] [stdout]              <String as AsRef<OsStr>>
[INFO] [stdout]              <String as AsRef<Path>>
[INFO] [stdout]              <String as AsRef<[u8]>>
[INFO] [stdout]              <String as AsRef<str>>
[INFO] [stdout]    = note: required because of the requirements on the impl of `AsRef<null_terminated::Nul<u8>>` for `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `String: AsRef<null_terminated::Nul<u8>>` is not satisfied
[INFO] [stdout]   --> examples/single_glyph.rs:42:33
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let face = library.new_face(font, 0).unwrap();
[INFO] [stdout]    |                        -------- ^^^^ the trait `AsRef<null_terminated::Nul<u8>>` is not implemented for `String`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following implementations were found:
[INFO] [stdout]              <String as AsRef<OsStr>>
[INFO] [stdout]              <String as AsRef<Path>>
[INFO] [stdout]              <String as AsRef<[u8]>>
[INFO] [stdout]              <String as AsRef<str>>
[INFO] [stdout]    = note: required because of the requirements on the impl of `AsRef<null_terminated::Nul<u8>>` for `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ft2` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "023cd899a9acbc9a8ebae3be8dc5ab7a5c9df28facbfdd895630c64109c21ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "023cd899a9acbc9a8ebae3be8dc5ab7a5c9df28facbfdd895630c64109c21ae2", kill_on_drop: false }`
[INFO] [stdout] 023cd899a9acbc9a8ebae3be8dc5ab7a5c9df28facbfdd895630c64109c21ae2