[INFO] fetching crate readings-probe 0.1.3... [INFO] testing readings-probe-0.1.3 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] extracting crate readings-probe 0.1.3 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate readings-probe 0.1.3 on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate readings-probe 0.1.3 [INFO] finished tweaking crates.io crate readings-probe 0.1.3 [INFO] tweaked toml for crates.io crate readings-probe 0.1.3 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate crates.io crate readings-probe 0.1.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 5425e559264688354433b48d9fe80d3bfe52d73d0d335817b721aa6aa6d2492d [INFO] running `Command { std: "docker" "start" "-a" "5425e559264688354433b48d9fe80d3bfe52d73d0d335817b721aa6aa6d2492d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5425e559264688354433b48d9fe80d3bfe52d73d0d335817b721aa6aa6d2492d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5425e559264688354433b48d9fe80d3bfe52d73d0d335817b721aa6aa6d2492d", kill_on_drop: false }` [INFO] [stdout] 5425e559264688354433b48d9fe80d3bfe52d73d0d335817b721aa6aa6d2492d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b6e420c920e1295dced11b7215af8a58d8098b521173f79c28ff602358b8606f [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" "b6e420c920e1295dced11b7215af8a58d8098b521173f79c28ff602358b8606f", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.63 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Compiling thiserror v1.0.24 [INFO] [stderr] Compiling readings-probe v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.93s [INFO] running `Command { std: "docker" "inspect" "b6e420c920e1295dced11b7215af8a58d8098b521173f79c28ff602358b8606f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b6e420c920e1295dced11b7215af8a58d8098b521173f79c28ff602358b8606f", kill_on_drop: false }` [INFO] [stdout] b6e420c920e1295dced11b7215af8a58d8098b521173f79c28ff602358b8606f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d66e582ae7abc9f90e04e33196d85ed3f22a005b49ed82a98af6d2beeca19b2 [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" "1d66e582ae7abc9f90e04e33196d85ed3f22a005b49ed82a98af6d2beeca19b2", kill_on_drop: false }` [INFO] [stderr] Compiling fs_extra v1.2.0 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Compiling jemalloc-sys v0.3.2 [INFO] [stderr] Compiling jemallocator v0.3.2 [INFO] [stderr] Compiling readings-probe v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1m 32s [INFO] running `Command { std: "docker" "inspect" "1d66e582ae7abc9f90e04e33196d85ed3f22a005b49ed82a98af6d2beeca19b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d66e582ae7abc9f90e04e33196d85ed3f22a005b49ed82a98af6d2beeca19b2", kill_on_drop: false }` [INFO] [stdout] 1d66e582ae7abc9f90e04e33196d85ed3f22a005b49ed82a98af6d2beeca19b2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8845d726541be3555cb7b6fbf88b2fa97508e5573267f563a33f63f76a193db6 [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" "8845d726541be3555cb7b6fbf88b2fa97508e5573267f563a33f63f76a193db6", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/readings_probe-d8ed61155491788d) [INFO] [stdout] [INFO] [stderr] Doc-tests readings-probe [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] [stdout] test src/lib.rs - (line 13) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 13) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/lib.rs:10:74 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55dafa4c28dc - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55dafa4c28dc - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55dafa4c28dc - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55dafa4c28dc - ::fmt::h82b0e3aaf8a96140 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55dafa4e161c - core::fmt::write::h72801a82c94e6ff1 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/fmt/mod.rs:1149:17 [INFO] [stdout] 5: 0x55dafa4bfdd5 - std::io::Write::write_fmt::hc2da38dc44811df8 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/io/mod.rs:1697:15 [INFO] [stdout] 6: 0x55dafa4c4070 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55dafa4c4070 - std::sys_common::backtrace::print::h7ce8802039fa9d0e [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55dafa4c4070 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x55dafa4c3c1b - std::panicking::default_hook::hf4f180b00076f2b2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:228:9 [INFO] [stdout] 10: 0x55dafa4c4724 - std::panicking::rust_panic_with_hook::he85ce8435493b711 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x55dafa4c4200 - std::panicking::begin_panic_handler::{{closure}}::h31e15f69e6235bd2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:502:13 [INFO] [stdout] 12: 0x55dafa4c2d94 - std::sys_common::backtrace::__rust_end_short_backtrace::hfce2fadb61aaa3ae [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x55dafa4c4169 - rust_begin_unwind [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x55dafa489d31 - core::panicking::panic_fmt::h7b8580d81fcbbacd [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/panicking.rs:107:14 [INFO] [stdout] 15: 0x55dafa489e23 - core::result::unwrap_failed::h885d3f7beb571353 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/result.rs:1613:5 [INFO] [stdout] 16: 0x55dafa48d959 - core::result::Result::unwrap::h709c328c8fa863f8 [INFO] [stdout] 17: 0x55dafa48f538 - rust_out::main::h932383b6fe7e8fba [INFO] [stdout] 18: 0x55dafa48c60e - core::ops::function::FnOnce::call_once::h2313f83b51b9bd24 [INFO] [stdout] 19: 0x55dafa48b096 - std::sys_common::backtrace::__rust_begin_short_backtrace::h8f0a9a03e3905f8e [INFO] [stdout] 20: 0x55dafa48bc71 - std::rt::lang_start::{{closure}}::h7b90b0932b470b77 [INFO] [stdout] 21: 0x55dafa4c2121 - core::ops::function::impls:: for &F>::call_once::h0e73392810ecd318 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 22: 0x55dafa4c2121 - std::panicking::try::do_call::h12dcb4a4f352a507 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40 [INFO] [stdout] 23: 0x55dafa4c2121 - std::panicking::try::h0d978c76ab4a3863 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19 [INFO] [stdout] 24: 0x55dafa4c2121 - std::panic::catch_unwind::hab40227675186980 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14 [INFO] [stdout] 25: 0x55dafa4c2121 - std::rt::lang_start_internal::{{closure}}::hc34786299e7d2cf7 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/rt.rs:128:48 [INFO] [stdout] 26: 0x55dafa4c2121 - std::panicking::try::do_call::h38e7a9128f21d387 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40 [INFO] [stdout] 27: 0x55dafa4c2121 - std::panicking::try::h32d4e72fd8922bce [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19 [INFO] [stdout] 28: 0x55dafa4c2121 - std::panic::catch_unwind::h9a345671d889d41f [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14 [INFO] [stdout] 29: 0x55dafa4c2121 - std::rt::lang_start_internal::h9e691a4f557eb2a3 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/rt.rs:128:20 [INFO] [stdout] 30: 0x55dafa48bc51 - std::rt::lang_start::h1de3da83bc8b9e6e [INFO] [stdout] 31: 0x55dafa48fc03 - main [INFO] [stdout] 32: 0x7fce853000b3 - __libc_start_main [INFO] [stdout] 33: 0x55dafa48a4ce - _start [INFO] [stdout] 34: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 13) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8845d726541be3555cb7b6fbf88b2fa97508e5573267f563a33f63f76a193db6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8845d726541be3555cb7b6fbf88b2fa97508e5573267f563a33f63f76a193db6", kill_on_drop: false }` [INFO] [stdout] 8845d726541be3555cb7b6fbf88b2fa97508e5573267f563a33f63f76a193db6