[INFO] fetching crate stringzilla 4.4.0...
[INFO] checking stringzilla-4.4.0 against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] extracting crate stringzilla 4.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate stringzilla 4.4.0
[INFO] finished tweaking crates.io crate stringzilla 4.4.0
[INFO] tweaked toml for crates.io crate stringzilla 4.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stringzilla 4.4.0 on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stringzilla 4.4.0 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46887eb6822282773be9c5e163bd80deee2693789b58ae701d87941e3950b4ae
[INFO] running `Command { std: "docker" "start" "-a" "46887eb6822282773be9c5e163bd80deee2693789b58ae701d87941e3950b4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46887eb6822282773be9c5e163bd80deee2693789b58ae701d87941e3950b4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46887eb6822282773be9c5e163bd80deee2693789b58ae701d87941e3950b4ae", kill_on_drop: false }`
[INFO] [stdout] 46887eb6822282773be9c5e163bd80deee2693789b58ae701d87941e3950b4ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e61facaaaebbcfc1f94ee8f9f4629a019d4ed0e2fdc950a30601c1066e278949
[INFO] running `Command { std: "docker" "start" "-a" "e61facaaaebbcfc1f94ee8f9f4629a019d4ed0e2fdc950a30601c1066e278949", kill_on_drop: false }`
[INFO] [stderr]    Compiling stringzilla v4.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> rust/stringzilla.rs:3278:28
[INFO] [stdout]      |
[INFO] [stdout] 3278 |         assert_eq!(splits, vec![b"a", &b""[..], b"b", &b""[..]]);
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |                            |
[INFO] [stdout]      |                            expected `[&[u8; 1]; _]`, found `[&[u8]; 4]`
[INFO] [stdout]      |                            arguments to this function are incorrect
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected array `[&[u8; 1]; _]`
[INFO] [stdout]                 found array `[&[u8]; 4]`
[INFO] [stdout] help: the return type of this call is `[&[u8]; 4]` due to the type of the argument passed
[INFO] [stdout]     --> rust/stringzilla.rs:3278:28
[INFO] [stdout]      |
[INFO] [stdout] 3278 |         assert_eq!(splits, vec![b"a", &b""[..], b"b", &b""[..]]);
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this argument influences the return type of `write_box_via_move`
[INFO] [stdout] note: function defined here
[INFO] [stdout]     --> /rustc/87f2ecc56b5f6032b075c8934ebc77f28d57183c/library/alloc/src/intrinsics.rs:15:7
[INFO] [stdout]      = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> rust/stringzilla.rs:3968:27
[INFO] [stdout]      |
[INFO] [stdout] 3968 |         assert_eq!(lines, vec![b"a", b"b", b"c", &b""[..], b"d"]);
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |                           |
[INFO] [stdout]      |                           expected `[&[u8; 1]; _]`, found `[&[u8]; 5]`
[INFO] [stdout]      |                           arguments to this function are incorrect
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected array `[&[u8; 1]; _]`
[INFO] [stdout]                 found array `[&[u8]; 5]`
[INFO] [stdout] help: the return type of this call is `[&[u8]; 5]` due to the type of the argument passed
[INFO] [stdout]     --> rust/stringzilla.rs:3968:27
[INFO] [stdout]      |
[INFO] [stdout] 3968 |         assert_eq!(lines, vec![b"a", b"b", b"c", &b""[..], b"d"]);
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this argument influences the return type of `write_box_via_move`
[INFO] [stdout] note: function defined here
[INFO] [stdout]     --> /rustc/87f2ecc56b5f6032b075c8934ebc77f28d57183c/library/alloc/src/intrinsics.rs:15:7
[INFO] [stdout]      = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stringzilla` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e61facaaaebbcfc1f94ee8f9f4629a019d4ed0e2fdc950a30601c1066e278949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61facaaaebbcfc1f94ee8f9f4629a019d4ed0e2fdc950a30601c1066e278949", kill_on_drop: false }`
[INFO] [stdout] e61facaaaebbcfc1f94ee8f9f4629a019d4ed0e2fdc950a30601c1066e278949