[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 try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fferris-fencing" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brson/ferris-fencing on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-15/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-15/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/brson/bloop.git`
[INFO] [stderr]     Updating git repository `https://github.com/brson/ckb-vm.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex v0.4.0
[INFO] [stderr]   Downloaded scroll v0.9.2
[INFO] [stderr]   Downloaded structopt-derive v0.3.3
[INFO] [stderr]   Downloaded structopt v0.3.3
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded compiler_builtins v0.1.19
[INFO] [stderr]   Downloaded scroll_derive v0.9.5
[INFO] [stderr]   Downloaded goblin v0.0.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33c691ffd915d261cd25a4a088718898397931bcf83f8ebad46ab97214d1cd70
[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" "33c691ffd915d261cd25a4a088718898397931bcf83f8ebad46ab97214d1cd70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33c691ffd915d261cd25a4a088718898397931bcf83f8ebad46ab97214d1cd70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c691ffd915d261cd25a4a088718898397931bcf83f8ebad46ab97214d1cd70", kill_on_drop: false }`
[INFO] [stdout] 33c691ffd915d261cd25a4a088718898397931bcf83f8ebad46ab97214d1cd70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd191dcbe5e7aca321c97f79f4a0f549a2a1d5a0007ea14e0b9d02aa10a0b9be
[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" "cd191dcbe5e7aca321c97f79f4a0f549a2a1d5a0007ea14e0b9d02aa10a0b9be", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[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 regex-syntax v0.6.12
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking ckb-vm-definitions v0.18.0 (https://github.com/brson/ckb-vm.git?rev=f49edd17927d0158289a5f5ed500c86f5e0816c1#f49edd17)
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking b_error v0.1.0 (https://github.com/brson/bloop.git?rev=474fc1309eff36a65113000eb6e0dcd9d9e95316#474fc130)
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[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 smallvec v0.6.10
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling ckb_vm_syscall v0.1.0 (/opt/rustwide/workdir/src/ckb_vm_syscall)
[INFO] [stderr]     Checking constant_time_eq v0.1.4
[INFO] [stderr]    Compiling compiler_builtins v0.1.19
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking demo_exe v0.1.0 (/opt/rustwide/workdir/src/demo_exe)
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr] error: could not compile `demo_exe`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/3bb2879ea9e58d65b875f9a98df44f4a43ce2597/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-21256c14e4504640.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" "cd191dcbe5e7aca321c97f79f4a0f549a2a1d5a0007ea14e0b9d02aa10a0b9be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd191dcbe5e7aca321c97f79f4a0f549a2a1d5a0007ea14e0b9d02aa10a0b9be", kill_on_drop: false }`
[INFO] [stdout] cd191dcbe5e7aca321c97f79f4a0f549a2a1d5a0007ea14e0b9d02aa10a0b9be