[INFO] fetching crate class2json 0.1.0...
[INFO] checking class2json-0.1.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate class2json 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate class2json 0.1.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate class2json 0.1.0
[INFO] finished tweaking crates.io crate class2json 0.1.0
[INFO] tweaked toml for crates.io crate class2json 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f10192347801346f8deca7f54ba84dd255451fc741425a465a75d53d5e89a62e
[INFO] running `"docker" "start" "-a" "f10192347801346f8deca7f54ba84dd255451fc741425a465a75d53d5e89a62e"`
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]     Checking class2json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/read_util.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn read_u8(f: &mut Read) -> u8 {
[INFO] [stderr]   |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:11:25
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn read_u16(f: &mut Read) -> u16 {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:18:25
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn read_u32(f: &mut Read) -> u32 {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn read_vec_u8(f: &mut Read, length: usize) -> Vec<u8> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:32:29
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn read_vec_u16(f: &mut Read, length: usize) -> Vec<u16> {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/class_file/constant_pool.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub array: Vec<Box<CpInfo>>,
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:39:27
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn read_classfile(f: &mut Read) -> ClassFile {
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:64:31
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn read_constant_pool(f: &mut Read, constant_pool_count: u16) -> ConstantPool {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:65:36
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let mut constant_pool: Vec<Box<CpInfo>> = Vec::new();
[INFO] [stderr]    |                                    ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:72:26
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let cp_info: Box<CpInfo> = match tag {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:182:24
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn read_fields(f: &mut Read, fields_count: u16) -> Fields {
[INFO] [stderr]     |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:203:25
[INFO] [stderr]     |
[INFO] [stderr] 203 | fn read_methods(f: &mut Read, methods_count: u16) -> Methods {
[INFO] [stderr]     |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:224:28
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn read_attributes(f: &mut Read, attributes_count: u16) -> Attributes {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/read_util.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn read_u8(f: &mut Read) -> u8 {
[INFO] [stderr]   |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:11:25
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn read_u16(f: &mut Read) -> u16 {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:18:25
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn read_u32(f: &mut Read) -> u32 {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn read_vec_u8(f: &mut Read, length: usize) -> Vec<u8> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read_util.rs:32:29
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn read_vec_u16(f: &mut Read, length: usize) -> Vec<u16> {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/class_file/constant_pool.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub array: Vec<Box<CpInfo>>,
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:39:27
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn read_classfile(f: &mut Read) -> ClassFile {
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:64:31
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn read_constant_pool(f: &mut Read, constant_pool_count: u16) -> ConstantPool {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:65:36
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let mut constant_pool: Vec<Box<CpInfo>> = Vec::new();
[INFO] [stderr]    |                                    ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:72:26
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let cp_info: Box<CpInfo> = match tag {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn CpInfo`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:182:24
[INFO] [stderr]     |
[INFO] [stderr] 182 | fn read_fields(f: &mut Read, fields_count: u16) -> Fields {
[INFO] [stderr]     |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:203:25
[INFO] [stderr]     |
[INFO] [stderr] 203 | fn read_methods(f: &mut Read, methods_count: u16) -> Methods {
[INFO] [stderr]     |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:224:28
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn read_attributes(f: &mut Read, attributes_count: u16) -> Attributes {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `"docker" "inspect" "f10192347801346f8deca7f54ba84dd255451fc741425a465a75d53d5e89a62e"`
[INFO] running `"docker" "rm" "-f" "f10192347801346f8deca7f54ba84dd255451fc741425a465a75d53d5e89a62e"`
[INFO] [stdout] f10192347801346f8deca7f54ba84dd255451fc741425a465a75d53d5e89a62e