[INFO] fetching crate stem_magnet 0.2.4...
[INFO] testing stem_magnet-0.2.4 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate stem_magnet 0.2.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate stem_magnet 0.2.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate stem_magnet 0.2.4
[INFO] tweaked toml for crates.io crate stem_magnet 0.2.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stem_magnet 0.2.4 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stem_magnet 0.2.4 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f558e542c9ffd5d012aeffb9df52b3ab77481f3507f8e16669a523543677959
[INFO] running `Command { std: "docker" "start" "-a" "7f558e542c9ffd5d012aeffb9df52b3ab77481f3507f8e16669a523543677959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f558e542c9ffd5d012aeffb9df52b3ab77481f3507f8e16669a523543677959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f558e542c9ffd5d012aeffb9df52b3ab77481f3507f8e16669a523543677959", kill_on_drop: false }`
[INFO] [stdout] 7f558e542c9ffd5d012aeffb9df52b3ab77481f3507f8e16669a523543677959
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56314b74015f728cd11a05a5d6e88b2fc79bbafa4be9a44e10ea40e42df7d846
[INFO] running `Command { std: "docker" "start" "-a" "56314b74015f728cd11a05a5d6e88b2fc79bbafa4be9a44e10ea40e42df7d846", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling hashbrown v0.17.0
[INFO] [stderr]    Compiling winnow v1.0.2
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling toml_datetime v1.1.1+spec-1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling typenum v1.20.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling dyn_quantity v0.5.10
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling safe_arch v0.7.4
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling compare_variables v0.3.0
[INFO] [stderr]    Compiling var_quantity v0.3.3
[INFO] [stderr]    Compiling bounding_box v0.5.0
[INFO] [stderr]    Compiling akima_spline v0.1.7
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr] error: failed to run custom build command for `var_quantity v0.3.3`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/var_quantity-dd83eec7ad24ff78/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (447) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/var_quantity-0.3.3/build.rs:18:41:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5db38d7f503a - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5db38d7f503a - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5db38d7f503a - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5db38d7f503a - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5db38d8056ba - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5db38d8056ba - core[35159d6ffb30e017]::fmt::write
[INFO] [stderr]      6:     0x5db38d7f8722 - std[ec419fa8110287d5]::io::default_write_fmt::<std[ec419fa8110287d5]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stderr]      7:     0x5db38d7f8722 - <std[ec419fa8110287d5]::sys::stdio::unix::Stderr as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stderr]      8:     0x5db38d7e088f - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5db38d7e088f - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5db38d7f10d1 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5db38d7f128b - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5db38d7e0948 - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5db38d7d84c9 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5db38d7e112d - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5db38d805d6c - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5db38d805b42 - core[35159d6ffb30e017]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x5db38d7c94d6 - build_script_build[be0fa9bdfd02265c]::main
[INFO] [stderr]     18:     0x5db38d7cad13 - <fn() as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x5db38d7c8b66 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x5db38d7c8eb9 - std[ec419fa8110287d5]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x5db38d7f0717 - <&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x5db38d7f0717 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x5db38d7f0717 - std[ec419fa8110287d5]::panicking::catch_unwind::<i32, &dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x5db38d7f0717 - std[ec419fa8110287d5]::panic::catch_unwind::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x5db38d7f0717 - std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x5db38d7f0717 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x5db38d7f0717 - std[ec419fa8110287d5]::panicking::catch_unwind::<isize, std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x5db38d7f0717 - std[ec419fa8110287d5]::panic::catch_unwind::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x5db38d7f0717 - std[ec419fa8110287d5]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x5db38d7c88f1 - std[ec419fa8110287d5]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x5db38d7cadc5 - main
[INFO] [stderr]     32:     0x7e51c7ca41ca - <unknown>
[INFO] [stderr]     33:     0x7e51c7ca428b - __libc_start_main
[INFO] [stderr]     34:     0x5db38d7c71f5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "56314b74015f728cd11a05a5d6e88b2fc79bbafa4be9a44e10ea40e42df7d846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56314b74015f728cd11a05a5d6e88b2fc79bbafa4be9a44e10ea40e42df7d846", kill_on_drop: false }`
[INFO] [stdout] 56314b74015f728cd11a05a5d6e88b2fc79bbafa4be9a44e10ea40e42df7d846
