[INFO] cloning repository https://github.com/boluobanana/rust_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boluobanana/rust_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboluobanana%2Frust_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboluobanana%2Frust_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62d1f85c60115ac7185bc7c5e6972c1724419ec2
[INFO] testing boluobanana/rust_example against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboluobanana%2Frust_example" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boluobanana/rust_example on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/boluobanana/rust_example
[INFO] finished tweaking git repo https://github.com/boluobanana/rust_example
[INFO] tweaked toml for git repo https://github.com/boluobanana/rust_example written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/boluobanana/rust_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fa4914a45ec676c241f48a3ebb2772257a62f79550ef13845d8508fe801b010
[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" "6fa4914a45ec676c241f48a3ebb2772257a62f79550ef13845d8508fe801b010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fa4914a45ec676c241f48a3ebb2772257a62f79550ef13845d8508fe801b010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fa4914a45ec676c241f48a3ebb2772257a62f79550ef13845d8508fe801b010", kill_on_drop: false }`
[INFO] [stdout] 6fa4914a45ec676c241f48a3ebb2772257a62f79550ef13845d8508fe801b010
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd0163c2984b4ea0ffcac3870418c3f33af00a098dcc709d15b0dd2c1c703beb
[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" "cd0163c2984b4ea0ffcac3870418c3f33af00a098dcc709d15b0dd2c1c703beb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling winit v0.23.0
[INFO] [stderr]    Compiling run_dylib_example v0.1.0 (/opt/rustwide/workdir/run_dylib_example)
[INFO] [stderr]    Compiling btree v0.1.0 (/opt/rustwide/workdir/btree)
[INFO] [stderr]    Compiling system_api_test v0.1.0 (/opt/rustwide/workdir/system_api_test)
[INFO] [stderr]    Compiling empty_test v0.1.0 (/opt/rustwide/workdir/empty_test)
[INFO] [stderr]    Compiling hash_test v0.1.0 (/opt/rustwide/workdir/hash_test)
[INFO] [stderr]    Compiling option_test v0.1.0 (/opt/rustwide/workdir/option_test)
[INFO] [stderr]    Compiling wayland-sys v0.28.2
[INFO] [stderr]    Compiling libloading v0.6.6
[INFO] [stderr]    Compiling lazy_init_test v0.1.0 (/opt/rustwide/workdir/lazy_init_test)
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling andrew v0.3.1
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]  --> btree/src/main.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut root = Node::new(12);
[INFO] [stdout]   |             ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> btree/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut root = Node::new(12);
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wayland-scanner v0.28.2
[INFO] [stdout] warning: unused import: `collections::hash_map::DefaultHasher`
[INFO] [stdout]  --> hash_test/src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::hash_map::DefaultHasher, hash::{Hash, Hasher}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> hash_test/src/main.rs:11:31
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn hash<H: Hasher>(&self, state: &mut H) {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Command`, `Output`, `io`
[INFO] [stdout]  --> system_api_test/src/os/process.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, process::{Command, Output}};
[INFO] [stdout]   |           ^^            ^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_env`
[INFO] [stdout]  --> run_dylib_example/src/utils.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn print_env() {
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.run_dylib_example.8c66a449-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c.2duenhncw5c0nqek.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-ldylib_window_example" "-Wl,--start-group" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-008055cc7d873802.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-06f01ac2578bda94.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f9a3c3274a1835e0.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d4cbb754ee9f4daa.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-95c14e1c1e3ebcc4.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d489f0ca872880cc.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-75f07df0b18fea39.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-0c35b278736219a2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e530649c9a06e3c6.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-6b148909d375a785.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-cd15fa647f4775d1.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74be3a703f788ba2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8f2c5b445c28b2e3.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8480e85e0be96197.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-ac23a75f6f42004e.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-557ba8776e04d182.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-4beb03d03503c439.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-dd7db1bec6909f24.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/run_dylib_example-750fd7d0b560020c" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -ldylib_window_example
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `run_dylib_example` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cd0163c2984b4ea0ffcac3870418c3f33af00a098dcc709d15b0dd2c1c703beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd0163c2984b4ea0ffcac3870418c3f33af00a098dcc709d15b0dd2c1c703beb", kill_on_drop: false }`
[INFO] [stdout] cd0163c2984b4ea0ffcac3870418c3f33af00a098dcc709d15b0dd2c1c703beb