[INFO] cloning repository https://github.com/Xianzhan/rust-jvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Xianzhan/rust-jvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXianzhan%2Frust-jvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXianzhan%2Frust-jvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7665921c07e545ba7103e015bf6b0d39a0952333
[INFO] checking Xianzhan/rust-jvm against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXianzhan%2Frust-jvm" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Xianzhan/rust-jvm on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Xianzhan/rust-jvm
[INFO] finished tweaking git repo https://github.com/Xianzhan/rust-jvm
[INFO] tweaked toml for git repo https://github.com/Xianzhan/rust-jvm written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Xianzhan/rust-jvm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.10
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] [stderr]   Downloaded vec_map v0.8.2
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded syn v1.0.64
[INFO] [stderr]   Downloaded libc v0.2.88
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded zip v0.5.11
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded flate2 v1.0.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 777c271242d82e3ef15ab5dd068026ab153959ae2aa22fd16c070c7a75b862b9
[INFO] running `Command { std: "docker" "start" "-a" "777c271242d82e3ef15ab5dd068026ab153959ae2aa22fd16c070c7a75b862b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "777c271242d82e3ef15ab5dd068026ab153959ae2aa22fd16c070c7a75b862b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "777c271242d82e3ef15ab5dd068026ab153959ae2aa22fd16c070c7a75b862b9", kill_on_drop: false }`
[INFO] [stdout] 777c271242d82e3ef15ab5dd068026ab153959ae2aa22fd16c070c7a75b862b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aefdd66dac25eb3461f1669a00cda23d8698a98edb00610e63dca726f537f83f
[INFO] running `Command { std: "docker" "start" "-a" "aefdd66dac25eb3461f1669a00cda23d8698a98edb00610e63dca726f537f83f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.10+1.0.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking zip v0.5.11
[INFO] [stderr]     Checking java v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/classfile/loader/entry.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn new(path: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/classfile/loader/entry.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn new(path: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_class_path_entry`
[INFO] [stdout]   --> src/classfile/loader/mod.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn create_class_path_entry(path: &str) -> Box<dyn ClassPathEntry> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u8`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn get_u8(&mut self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u16`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn get_u16(&mut self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u32`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn get_u32(&mut self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u64`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn get_u64(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_data`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn print_data(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `as_u16_be`
[INFO] [stdout]   --> src/classfile/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn as_u16_be(v: &[u8], offset: usize) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `as_u32_be`
[INFO] [stdout]   --> src/classfile/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn as_u32_be(v: &[u8], offset: usize) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `as_u64_be`
[INFO] [stdout]   --> src/classfile/mod.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn as_u64_be(v: &[u8], offset: usize) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u8`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn get_u8(&mut self) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u16`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn get_u16(&mut self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u32`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn get_u32(&mut self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_u64`
[INFO] [stdout]   --> src/classfile/stream/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn get_u64(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.34s
[INFO] running `Command { std: "docker" "inspect" "aefdd66dac25eb3461f1669a00cda23d8698a98edb00610e63dca726f537f83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aefdd66dac25eb3461f1669a00cda23d8698a98edb00610e63dca726f537f83f", kill_on_drop: false }`
[INFO] [stdout] aefdd66dac25eb3461f1669a00cda23d8698a98edb00610e63dca726f537f83f