[INFO] fetching crate treelite 0.1.2...
[INFO] testing treelite-0.1.2 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate treelite 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate treelite 0.1.2 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treelite 0.1.2
[INFO] finished tweaking crates.io crate treelite 0.1.2
[INFO] tweaked toml for crates.io crate treelite 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-error v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d90491f7808a3debbdc808d630239db9031fa014b793f01e56bd2bbe1f259a2e
[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" "d90491f7808a3debbdc808d630239db9031fa014b793f01e56bd2bbe1f259a2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d90491f7808a3debbdc808d630239db9031fa014b793f01e56bd2bbe1f259a2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d90491f7808a3debbdc808d630239db9031fa014b793f01e56bd2bbe1f259a2e", kill_on_drop: false }`
[INFO] [stdout] d90491f7808a3debbdc808d630239db9031fa014b793f01e56bd2bbe1f259a2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c6cdbb8dfee702efb476017ba2c526fb6885713d5ed665b54771e50440d8271a
[INFO] running `Command { std: "docker" "start" "-a" "c6cdbb8dfee702efb476017ba2c526fb6885713d5ed665b54771e50440d8271a", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling simple-error v0.2.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling treelite v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `treelite v0.1.2 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/treelite-0a94ea3c15d6acf2/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-lib=treelite
[INFO] [stderr]   cargo:rustc-link-lib=treelite_runtime
[INFO] [stderr]   cargo:rustc-link-search=native=/usr/local/lib
[INFO] [stderr]   cargo:rerun-if-changed=wrapper.h
[INFO] [stderr]   cargo:rerun-if-changed=headers/treelite/c_api_runtime.h
[INFO] [stderr]   cargo:rerun-if-changed=headers/treelite/c_api_common.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/stdio.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/libc-header-start.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/features.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/stdc-predef.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/sys/cdefs.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/long-double.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/gnu/stubs.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/gnu/stubs-64.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-10/lib/clang/10.0.0/include/stddef.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-10/lib/clang/10.0.0/include/stdarg.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/features.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/timesize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/typesizes.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/time64.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types/__FILE.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types/FILE.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/stdio_lim.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/sys_errlist.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-10/lib/clang/10.0.0/include/stdint.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/stdint.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/libc-header-start.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/features.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wchar.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/stdint-intn.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=headers/treelite/entry.h
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Couldn't write bindings!: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:23:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5575bf429fe0 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5575bf429fe0 - std[77c0456e0eb29f0c]::backtrace_rs::backtrace::trace_unsynchronized::<std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5575bf429fe0 - std[77c0456e0eb29f0c]::sys_common::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5575bf429fe0 - <std[77c0456e0eb29f0c]::sys_common::backtrace::_print::DisplayBacktrace as core[ee1ca6415511a9c4]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5575bf44e7dc - core[ee1ca6415511a9c4]::fmt::write
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x5575bf4270c5 - <std[77c0456e0eb29f0c]::sys::unix::stdio::Stderr as std[77c0456e0eb29f0c]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/io/mod.rs:1584:15
[INFO] [stderr]      6:     0x5575bf42c12b - std[77c0456e0eb29f0c]::sys_common::backtrace::_print
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5575bf42c12b - std[77c0456e0eb29f0c]::sys_common::backtrace::print
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5575bf42c12b - std[77c0456e0eb29f0c]::panicking::default_hook::{closure#1}
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5575bf42bc01 - std[77c0456e0eb29f0c]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5575bf42c7d1 - std[77c0456e0eb29f0c]::panicking::rust_panic_with_hook
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x5575bf42c2d7 - std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x5575bf42a4dc - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_end_short_backtrace::<std[77c0456e0eb29f0c]::panicking::begin_panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5575bf42c239 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x5575bef4e871 - core[ee1ca6415511a9c4]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x5575bef4e963 - core[ee1ca6415511a9c4]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x5575bf03b249 - <core[ee1ca6415511a9c4]::result::Result<(), std[77c0456e0eb29f0c]::io::error::Error>>::expect
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x5575bef50a97 - build_script_build[c1e1566ddf854b9]::main
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:21:5
[INFO] [stderr]     18:     0x5575bef4fe3b - <fn() as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x5575bef4fcee - std[77c0456e0eb29f0c]::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x5575bef51451 - std[77c0456e0eb29f0c]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/rt.rs:49:18
[INFO] [stderr]     21:     0x5575bf42ccc9 - <&dyn core[ee1ca6415511a9c4]::ops::function::Fn<(), Output = i32> + std[77c0456e0eb29f0c]::panic::RefUnwindSafe + core[ee1ca6415511a9c4]::marker::Sync as core[ee1ca6415511a9c4]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5575bf42ccc9 - std[77c0456e0eb29f0c]::panicking::try::do_call::<&dyn core[ee1ca6415511a9c4]::ops::function::Fn<(), Output = i32> + std[77c0456e0eb29f0c]::panic::RefUnwindSafe + core[ee1ca6415511a9c4]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x5575bf42ccc9 - std[77c0456e0eb29f0c]::panicking::try::<i32, &dyn core[ee1ca6415511a9c4]::ops::function::Fn<(), Output = i32> + std[77c0456e0eb29f0c]::panic::RefUnwindSafe + core[ee1ca6415511a9c4]::marker::Sync>
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x5575bf42ccc9 - std[77c0456e0eb29f0c]::panic::catch_unwind::<&dyn core[ee1ca6415511a9c4]::ops::function::Fn<(), Output = i32> + std[77c0456e0eb29f0c]::panic::RefUnwindSafe + core[ee1ca6415511a9c4]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/panic.rs:433:14
[INFO] [stderr]     25:     0x5575bf42ccc9 - std[77c0456e0eb29f0c]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/rt.rs:34:21
[INFO] [stderr]     26:     0x5575bef51430 - std[77c0456e0eb29f0c]::rt::lang_start::<()>
[INFO] [stderr]                                  at /rustc/ce59db7a1b1b012fb2793c4641c1bdecad7a128b/library/std/src/rt.rs:48:5
[INFO] [stderr]     27:     0x5575bef50afc - main
[INFO] [stderr]     28:     0x7fb123ad70b3 - __libc_start_main
[INFO] [stderr]     29:     0x5575bef4f06e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c6cdbb8dfee702efb476017ba2c526fb6885713d5ed665b54771e50440d8271a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6cdbb8dfee702efb476017ba2c526fb6885713d5ed665b54771e50440d8271a", kill_on_drop: false }`
[INFO] [stdout] c6cdbb8dfee702efb476017ba2c526fb6885713d5ed665b54771e50440d8271a