[INFO] cloning repository https://github.com/brson/ferris-fencing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brson/ferris-fencing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fferris-fencing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fferris-fencing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb192e1b74464ab5878c1cba20ff597e51c45796
[INFO] checking brson/ferris-fencing against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fferris-fencing" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brson/ferris-fencing on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-106/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/brson/ferris-fencing
[INFO] finished tweaking git repo https://github.com/brson/ferris-fencing
[INFO] tweaked toml for git repo https://github.com/brson/ferris-fencing written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/brson/ferris-fencing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34a0d22688dcabde65334373f186baedbc8ca28c0ef3e1802a69ce5a546b9a63
[INFO] running `Command { std: "docker" "start" "-a" "34a0d22688dcabde65334373f186baedbc8ca28c0ef3e1802a69ce5a546b9a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34a0d22688dcabde65334373f186baedbc8ca28c0ef3e1802a69ce5a546b9a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a0d22688dcabde65334373f186baedbc8ca28c0ef3e1802a69ce5a546b9a63", kill_on_drop: false }`
[INFO] [stdout] 34a0d22688dcabde65334373f186baedbc8ca28c0ef3e1802a69ce5a546b9a63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a00b4476060f1ded6d2868cf8f96788ff9c88a89d2b22d17a06e6ee458bcdee
[INFO] running `Command { std: "docker" "start" "-a" "3a00b4476060f1ded6d2868cf8f96788ff9c88a89d2b22d17a06e6ee458bcdee", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking ckb-vm-definitions v0.18.0 (https://github.com/brson/ckb-vm.git?rev=f49edd17927d0158289a5f5ed500c86f5e0816c1#f49edd17)
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking b_error v0.1.0 (https://github.com/brson/bloop.git?rev=474fc1309eff36a65113000eb6e0dcd9d9e95316#474fc130)
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking constant_time_eq v0.1.4
[INFO] [stderr]    Compiling ckb_vm_syscall v0.1.0 (/opt/rustwide/workdir/src/ckb_vm_syscall)
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]    Compiling compiler_builtins v0.1.19
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking demo_exe v0.1.0 (/opt/rustwide/workdir/src/demo_exe)
[INFO] [stderr]     Checking httparse v1.3.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `demo_exe` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]  --> src/demo_exe/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn panic(info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]   = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1dd6c19f0820d51d.rlib
[INFO] [stdout]   = note: second definition in the local crate (`demo_exe`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3a00b4476060f1ded6d2868cf8f96788ff9c88a89d2b22d17a06e6ee458bcdee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a00b4476060f1ded6d2868cf8f96788ff9c88a89d2b22d17a06e6ee458bcdee", kill_on_drop: false }`
[INFO] [stdout] 3a00b4476060f1ded6d2868cf8f96788ff9c88a89d2b22d17a06e6ee458bcdee