[INFO] cloning repository https://github.com/MatevzFa/class2json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MatevzFa/class2json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatevzFa%2Fclass2json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatevzFa%2Fclass2json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d117af2ea0837f499261d72093dfc4bdcfdd4bfd
[INFO] building MatevzFa/class2json against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMatevzFa%2Fclass2json" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MatevzFa/class2json on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MatevzFa/class2json
[INFO] finished tweaking git repo https://github.com/MatevzFa/class2json
[INFO] tweaked toml for git repo https://github.com/MatevzFa/class2json written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/MatevzFa/class2json already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.10
[INFO] [stderr]   Downloaded serde v1.0.89
[INFO] [stderr]   Downloaded libc v0.2.42
[INFO] [stderr]   Downloaded clap v2.31.2
[INFO] [stderr]   Downloaded syn v0.15.27
[INFO] [stderr]   Downloaded erased-serde v0.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8aa4421a0b9c15ceee39b7ba799b356c648c3a73460267a3a7423f538278c6c0
[INFO] running `Command { std: "docker" "start" "-a" "8aa4421a0b9c15ceee39b7ba799b356c648c3a73460267a3a7423f538278c6c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aa4421a0b9c15ceee39b7ba799b356c648c3a73460267a3a7423f538278c6c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aa4421a0b9c15ceee39b7ba799b356c648c3a73460267a3a7423f538278c6c0", kill_on_drop: false }`
[INFO] [stdout] 8aa4421a0b9c15ceee39b7ba799b356c648c3a73460267a3a7423f538278c6c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b074b36f38e6bd105d157c1bd9718c8943fdff75c78629a1d979a691d7fb178
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b074b36f38e6bd105d157c1bd9718c8943fdff75c78629a1d979a691d7fb178", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling erased-serde v0.3.9
[INFO] [stderr]    Compiling class2json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/read_util.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_u8(f: &mut Read) -> u8 {
[INFO] [stdout]   |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read_util.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn read_u16(f: &mut Read) -> u16 {
[INFO] [stdout]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read_util.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn read_u32(f: &mut Read) -> u32 {
[INFO] [stdout]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read_util.rs:25:28
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn read_vec_u8(f: &mut Read, length: usize) -> Vec<u8> {
[INFO] [stdout]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/read_util.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn read_vec_u16(f: &mut Read, length: usize) -> Vec<u16> {
[INFO] [stdout]    |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/class_file/constant_pool.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub array: Vec<Box<CpInfo>>,
[INFO] [stdout]    |                        ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/bytecode/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / macro_rules! instruction {
[INFO] [stdout] 2 | |     ($instr:expr, [$(eval $a:expr),*]) => {{
[INFO] [stdout] 3 | |         let mut vector: Vec<i32> = Vec::new();
[INFO] [stdout] 4 | |         $(vector.push($x as u8);)*
[INFO] [stdout] 5 | |         (instr, vector.sum(), vector)
[INFO] [stdout] 6 | |     }};
[INFO] [stdout] 7 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:40:27
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn read_classfile(f: &mut Read) -> ClassFile {
[INFO] [stdout]    |                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:65:31
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn read_constant_pool(f: &mut Read, constant_pool_count: u16) -> ConstantPool {
[INFO] [stdout]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:66:36
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut constant_pool: Vec<Box<CpInfo>> = Vec::new();
[INFO] [stdout]    |                                    ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:73:26
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let cp_info: Box<CpInfo> = match tag {
[INFO] [stdout]    |                          ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:183:24
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn read_fields(f: &mut Read, fields_count: u16) -> Fields {
[INFO] [stdout]     |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:204:25
[INFO] [stdout]     |
[INFO] [stdout] 204 | fn read_methods(f: &mut Read, methods_count: u16) -> Methods {
[INFO] [stdout]     |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:225:28
[INFO] [stdout]     |
[INFO] [stdout] 225 | fn read_attributes(f: &mut Read, attributes_count: u16) -> Attributes {
[INFO] [stdout]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: no implementation for `u8 | std::option::Option<&u8>`
[INFO] [stdout]   --> src/serialization.rs:32:61
[INFO] [stdout]    |
[INFO] [stdout] 32 |                     2 => bytecode_iter.next().unwrap() << 8 | bytecode_iter.next(),
[INFO] [stdout]    |                                                             ^ no implementation for `u8 | std::option::Option<&u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `BitOr<std::option::Option<&u8>>` is not implemented for `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: no implementation for `std::option::Option<&u8> << {integer}`
[INFO] [stdout]   --> src/serialization.rs:33:85
[INFO] [stdout]    |
[INFO] [stdout] 33 | ...   4 => bytecode_iter.next().unwrap() << 24 | bytecode_iter.next() << 16 | bytecode_iter.next() << 8 | bytecode_iter.next().unwrap(),
[INFO] [stdout]    |                                                  -------------------- ^^ -- {integer}
[INFO] [stdout]    |                                                  |
[INFO] [stdout]    |                                                  std::option::Option<&u8>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: no implementation for `std::option::Option<&u8> << {integer}`
[INFO] [stdout]   --> src/serialization.rs:33:114
[INFO] [stdout]    |
[INFO] [stdout] 33 | ...   4 => bytecode_iter.next().unwrap() << 24 | bytecode_iter.next() << 16 | bytecode_iter.next() << 8 | bytecode_iter.next().unwrap(),
[INFO] [stdout]    |                                                                               -------------------- ^^ - {integer}
[INFO] [stdout]    |                                                                               |
[INFO] [stdout]    |                                                                               std::option::Option<&u8>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: `match` arms have incompatible types
[INFO] [stdout]   --> src/serialization.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |                   let arg = match arg_len {
[INFO] [stdout]    |  ___________________________-
[INFO] [stdout] 31 | |                     1 => bytecode_iter.next().unwrap(),
[INFO] [stdout]    | |                          ----------------------------- this is found to be of type `&u8`
[INFO] [stdout] 32 | |                     2 => bytecode_iter.next().unwrap() << 8 | bytecode_iter.next(),
[INFO] [stdout]    | |                          --------------------------------------------------------- this is found to be of type `&u8`
[INFO] [stdout] 33 | |                     4 => bytecode_iter.next().unwrap() << 24 | bytecode_iter.next() << 16 | bytecode_iter.next() << 8 | bytecode_iter.next().unwrap...
[INFO] [stdout]    | |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&u8`, found `u8`
[INFO] [stdout] 34 | |                 };
[INFO] [stdout]    | |_________________- `match` arms have incompatible types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0369.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `class2json`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5b074b36f38e6bd105d157c1bd9718c8943fdff75c78629a1d979a691d7fb178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b074b36f38e6bd105d157c1bd9718c8943fdff75c78629a1d979a691d7fb178", kill_on_drop: false }`
[INFO] [stdout] 5b074b36f38e6bd105d157c1bd9718c8943fdff75c78629a1d979a691d7fb178
