[INFO] updating cached repository https://github.com/pfernie/synacor-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c2677d8145793b1085adcae0aa1b1cb73bef1dc
[INFO] testing pfernie/synacor-rs against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpfernie%2Fsynacor-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pfernie/synacor-rs on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pfernie/synacor-rs
[INFO] finished tweaking git repo https://github.com/pfernie/synacor-rs
[INFO] tweaked toml for git repo https://github.com/pfernie/synacor-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/pfernie/synacor-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b44c0b529aea08c6951219a0a4f5e9265499fa1a4c380e2a7959c126d8a9fb75
[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" "b44c0b529aea08c6951219a0a4f5e9265499fa1a4c380e2a7959c126d8a9fb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b44c0b529aea08c6951219a0a4f5e9265499fa1a4c380e2a7959c126d8a9fb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44c0b529aea08c6951219a0a4f5e9265499fa1a4c380e2a7959c126d8a9fb75", kill_on_drop: false }`
[INFO] [stdout] b44c0b529aea08c6951219a0a4f5e9265499fa1a4c380e2a7959c126d8a9fb75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88048a987cfe4eab45f706c50c41e686e3eb1f01012823624c520a9e34172d43
[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" "88048a987cfe4eab45f706c50c41e686e3eb1f01012823624c520a9e34172d43", kill_on_drop: false }`
[INFO] [stderr]    Compiling try_from v0.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling env_logger v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling synacor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/bin/foo.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let t = thread::Builder::new().stack_size(1024 * 1024 * 32).spawn(move || {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/debugger/mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl AsMut<Inspectable + 'static> for VmState {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/debugger/mod.rs:25:35
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn as_mut(&mut self) -> &mut (Inspectable + 'static) {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/debugger/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl AsRef<Inspectable + 'static> for VmState {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/debugger/mod.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn as_ref(&self) -> &(Inspectable + 'static) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Inspectable + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/memory.rs:326:14
[INFO] [stdout]     |
[INFO] [stdout] 326 |             0...MAX_ADDR => Ok(Value::Literal(u)),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/memory.rs:327:18
[INFO] [stdout]     |
[INFO] [stdout] 327 |             32768...32776 => Register::try_from(u).map(Value::FromRegister),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stdout]  --> src/debugger/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / error_chain!{
[INFO] [stdout] 3  | |     foreign_links {
[INFO] [stdout] 4  | |         Io(::std::io::Error);
[INFO] [stdout] 5  | |         ParseInt(::std::num::ParseIntError);
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / error_chain!{
[INFO] [stdout] 3  | |     foreign_links {
[INFO] [stdout] 4  | |         Io(::std::io::Error);
[INFO] [stdout] 5  | |         ParseInt(::std::num::ParseIntError);
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     }
[INFO] [stdout] 42 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/debugger/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.synacor.21y6zwd3-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4" "/opt/rustwide/target/debug/deps/synacor-305f3417205981c4.4er9sjh6ecclftm9.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libtry_from-0531c32aae099d71.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-35f720c6c582d609.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-c67a9715b1a06cdf.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-2c5b9b8328593bcc.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-78aeb5d56643d06e.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-30cba4ee85dcefbb.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-25917302f706a38d.rlib" "/opt/rustwide/target/debug/deps/libwinapi-0f165c0ed5b63ae2.rlib" "/opt/rustwide/target/debug/deps/libkernel32-a7da0be504f2a82f.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-a3728626eb1598ea.rlib" "/opt/rustwide/target/debug/deps/libregex-454c0ea5b772039e.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-526801e80c910ae2.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-4bdda78dff7c10d9.rlib" "/opt/rustwide/target/debug/deps/libthread_local-e03cbe00d0bd5226.rlib" "/opt/rustwide/target/debug/deps/libunreachable-c7793b6ba89da5ee.rlib" "/opt/rustwide/target/debug/deps/libvoid-e31c15de66dcb358.rlib" "/opt/rustwide/target/debug/deps/libthread_id-a0283893de906cb0.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-de81ecb73c6e3ef1.rlib" "/opt/rustwide/target/debug/deps/libmemchr-c8e87662af87adbe.rlib" "/opt/rustwide/target/debug/deps/liblibc-ed671c4d701c0489.rlib" "/opt/rustwide/target/debug/deps/liblog-b6c9602071a96db3.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-7b7d4c1cf1b51873.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8bb11f807a7b6b4c.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-ca8087507780d964.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-259c92b387c1c166.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-16e0a2fbbb8e14b3.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-8a1651b8e23d2aaf.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-23bdd98b0574083e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-855a92055ec33e2e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-24c70dd44fbacdfb.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-b326273841bae587.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ac3c1f0e16507051.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5729542b65954aa.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-09bd1119ab1cad7d.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9a787681bfbeaf61.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-5a0398ee67f74664.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-c67a9715b1a06cdf.rlib(backtrace-c67a9715b1a06cdf.backtrace.elns5dkv-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-c67a9715b1a06cdf.rlib(backtrace-c67a9715b1a06cdf.backtrace.elns5dkv-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synacor`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "88048a987cfe4eab45f706c50c41e686e3eb1f01012823624c520a9e34172d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88048a987cfe4eab45f706c50c41e686e3eb1f01012823624c520a9e34172d43", kill_on_drop: false }`
[INFO] [stdout] 88048a987cfe4eab45f706c50c41e686e3eb1f01012823624c520a9e34172d43