[INFO] cloning repository https://github.com/woodgear/rust-lab [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/woodgear/rust-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodgear%2Frust-lab", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodgear%2Frust-lab'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0f8df2be96ba2331b3b0e065f21dd2a7f3a505d3 [INFO] testing woodgear/rust-lab against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodgear%2Frust-lab" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/woodgear/rust-lab on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/woodgear/rust-lab [INFO] finished tweaking git repo https://github.com/woodgear/rust-lab [INFO] tweaked toml for git repo https://github.com/woodgear/rust-lab written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/woodgear/rust-lab already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4445ea5765fc2dd7fe44ac99c7e484d0942503d368378bb45e6a4b3e21d854af [INFO] running `Command { std: "docker" "start" "-a" "4445ea5765fc2dd7fe44ac99c7e484d0942503d368378bb45e6a4b3e21d854af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4445ea5765fc2dd7fe44ac99c7e484d0942503d368378bb45e6a4b3e21d854af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4445ea5765fc2dd7fe44ac99c7e484d0942503d368378bb45e6a4b3e21d854af", kill_on_drop: false }` [INFO] [stdout] 4445ea5765fc2dd7fe44ac99c7e484d0942503d368378bb45e6a4b3e21d854af [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5987197ccb81de30b4a6bc127215390aa5588f67146b321e7c2776de763e9924 [INFO] running `Command { std: "docker" "start" "-a" "5987197ccb81de30b4a6bc127215390aa5588f67146b321e7c2776de763e9924", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling futures v0.1.28 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling owning_ref v0.4.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling lock_api v0.1.5 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling cc v1.0.41 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling tokio-executor v0.1.8 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling tokio-sync v0.1.6 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling dirs-sys v0.3.4 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling tokio-threadpool v0.1.15 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-reactor v0.1.9 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling term v0.6.1 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio-fs v0.1.6 [INFO] [stderr] Compiling tokio-uds v0.2.5 [INFO] [stderr] Compiling tokio-udp v0.1.5 [INFO] [stderr] Compiling chrono v0.4.9 [INFO] [stderr] Compiling backtrace v0.3.37 [INFO] [stderr] Compiling tokio-current-thread v0.1.6 [INFO] [stderr] Compiling tokio-timer v0.2.11 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling simplelog v0.7.1 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling tokio-demo v0.1.0 (/opt/rustwide/workdir/tokio-demo) [INFO] [stdout] warning: unused import: `Config` [INFO] [stdout] --> tokio-demo/src/main.rs:1:42 [INFO] [stdout] | [INFO] [stdout] 1 | use simplelog::{TermLogger, LevelFilter, Config, TerminalMode, ConfigBuilder}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `try_ready` [INFO] [stdout] --> tokio-demo/src/main.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | use futures::{Async, Poll, Stream, try_ready}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `File`, `io::SeekFrom`, `io::prelude::*`, `path::*`, and `self` [INFO] [stdout] --> tokio-demo/src/main.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{fs::{self, File}, path::*, io::SeekFrom, io::prelude::*, thread}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^ ^^^^^^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ffi::OsStr` [INFO] [stdout] --> tokio-demo/src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ffi::OsStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> tokio-demo/src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc::SendError` [INFO] [stdout] --> tokio-demo/src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::sync::mpsc::SendError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> tokio-demo/src/main.rs:73:40 [INFO] [stdout] | [INFO] [stdout] 73 | ... Ok((())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 73 - Ok((())) [INFO] [stdout] 73 + Ok(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> tokio-demo/src/main.rs:75:37 [INFO] [stdout] | [INFO] [stdout] 75 | ... Err(e) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> tokio-demo/src/main.rs:101:21 [INFO] [stdout] | [INFO] [stdout] 101 | }).map_err(|e|()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> tokio-demo/src/main.rs:107:25 [INFO] [stdout] | [INFO] [stdout] 107 | }).map_err(|e|())) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tokio-demo/src/main.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | let mut t = Test::new(); [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] [stdout] warning: field `thread_handle` is never read [INFO] [stdout] --> tokio-demo/src/main.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct Test { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 21 | thread_handle: JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> tokio-demo/src/main.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 94 | TermLogger::init(LevelFilter::Debug, log_config, TerminalMode::Mixed); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 94 | let _ = TermLogger::init(LevelFilter::Debug, log_config, TerminalMode::Mixed); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/tmp/rustcnfORY1/symbols.o" "<3 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libtokio-d6ce4c1a7ac85741.rlib,libtokio_uds-32f6cd8def80f905.rlib,libmio_uds-13eb208a1322de68.rlib,libtokio_udp-e3e68c507272df4e.rlib,libtokio_timer-f15add3f3474e5f1.rlib,libtokio_tcp-df2292f98b3bfc12.rlib,libtokio_reactor-1957eb83ecb29c1a.rlib,libtokio_sync-c1131176d7534968.rlib,libfnv-12606c81bfa8a024.rlib,libparking_lot-3f098e592d70485b.rlib,libparking_lot_core-3dafee0c9e09faa9.rlib,libsmallvec-9f037b58cbf1e40f.rlib,liblock_api-2d29921e5a6c6f49.rlib,libowning_ref-4fa29b479323ad4a.rlib,libstable_deref_trait-226dec03df659ba2.rlib,libscopeguard-ace9bd6bf0f8ab9a.rlib,libtokio_fs-f76c758b07a1b8c4.rlib,libtokio_threadpool-214dfb5ba22f1b6b.rlib,librand-1d1c12eb704b5c24.rlib,librand_xorshift-14e9b45bdf59ad1d.rlib,librand_pcg-d6877c773b5e31e6.rlib,librand_hc-8c6bc8b58dca19e2.rlib,librand_chacha-3d9427ae9c67005b.rlib,librand_isaac-d86d4a8db0c58845.rlib,librand_core-a81fe7808f612aa2.rlib,librand_os-ee92381dac961d85.rlib,librand_jitter-7a2811bedef919f4.rlib,librand_core-071c4ecd390d5ba3.rlib,libcrossbeam_queue-7093673afe4c15b0.rlib,libcrossbeam_deque-326fcdef0740fa89.rlib,libcrossbeam_epoch-36802f51237187f7.rlib,libscopeguard-f56127f537038ddd.rlib,libmemoffset-287c10baa1147c75.rlib,libarrayvec-02675be8ce4d5b9f.rlib,libnodrop-cafe9826e2221570.rlib,libtokio_current_thread-edb9f1fea472f287.rlib,libtokio_executor-09199d8310225d24.rlib,libcrossbeam_utils-9c29bf6765de66ca.rlib,liblazy_static-2bb390fee0230a38.rlib,libtokio_codec-6437effb0a02bfc1.rlib,libtokio_io-f68f0415c5e9a165.rlib,libnum_cpus-2c48e4efd23e05ec.rlib,libmio-e4073e544b303e92.rlib,libslab-ab64617c0d711aec.rlib,libnet2-d7468f04135efb11.rlib,libbytes-fb767a902a63e681.rlib,libiovec-02b9efe991315f29.rlib,libbyteorder-585ffbd7ef95343a.rlib,libfailure-13a126baa78fe32b.rlib,libbacktrace-ec7cb4e75644b2fb.rlib,libbacktrace_sys-3baf7a40df6edd4d.rlib,librustc_demangle-103a08d995311eb3.rlib,libfutures-e0825e34bc95126d.rlib,libsimplelog-3af43b306c52b79f.rlib,libterm-da3430329744a3bf.rlib,libdirs-32aec6033e096028.rlib,libdirs_sys-0e43ce4084fbdaed.rlib,libchrono-31cb0c3d1cbdf819.rlib,libnum_integer-1c3bd545e523da3b.rlib,libnum_traits-35d5d81629a3444e.rlib,libtime-2b819c5e56a2ef40.rlib,liblibc-821461116f47a5cd.rlib,liblog-cba21d00199bcb5f.rlib,libcfg_if-20e4ba4f697c33fe.rlib}.rlib" "/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcnfORY1/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,-znostart-stop-gc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-5fc4445d3353c31f/out" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/tokio_demo-d2b699402ada2150" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs" [INFO] [stdout] = note: some arguments are omitted. use `--verbose` to show all linker arguments [INFO] [stdout] = note: PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. [INFO] [stdout] collect2: fatal error: ld terminated with signal 7 [Bus error], core dumped [INFO] [stdout] compilation terminated. [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tokio-demo` (bin "tokio-demo") due to 1 previous error; 13 warnings emitted [INFO] running `Command { std: "docker" "inspect" "5987197ccb81de30b4a6bc127215390aa5588f67146b321e7c2776de763e9924", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5987197ccb81de30b4a6bc127215390aa5588f67146b321e7c2776de763e9924", kill_on_drop: false }` [INFO] [stdout] 5987197ccb81de30b4a6bc127215390aa5588f67146b321e7c2776de763e9924