[INFO] fetching crate id_tree_layout 2.0.4...
[INFO] testing id_tree_layout-2.0.4 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate id_tree_layout 2.0.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate id_tree_layout 2.0.4 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate id_tree_layout 2.0.4
[INFO] finished tweaking crates.io crate id_tree_layout 2.0.4
[INFO] tweaked toml for crates.io crate id_tree_layout 2.0.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate id_tree_layout 2.0.4 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xml_writer v0.4.0
[INFO] [stderr]   Downloaded snowflake v1.3.0
[INFO] [stderr]   Downloaded id_tree v1.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b482c28bed91f5e2969e4594e2057f71ffa2caadce8712d76e81483cbfd1861
[INFO] running `Command { std: "docker" "start" "-a" "5b482c28bed91f5e2969e4594e2057f71ffa2caadce8712d76e81483cbfd1861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b482c28bed91f5e2969e4594e2057f71ffa2caadce8712d76e81483cbfd1861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b482c28bed91f5e2969e4594e2057f71ffa2caadce8712d76e81483cbfd1861", kill_on_drop: false }`
[INFO] [stdout] 5b482c28bed91f5e2969e4594e2057f71ffa2caadce8712d76e81483cbfd1861
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] caa04d3d5d737da53f54e8a546b4b1d44439819ef4b5f0f85cd24b4365b6e320
[INFO] running `Command { std: "docker" "start" "-a" "caa04d3d5d737da53f54e8a546b4b1d44439819ef4b5f0f85cd24b4365b6e320", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling xml_writer v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling id_tree v1.8.0
[INFO] [stderr]    Compiling id_tree_layout v2.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.66s
[INFO] running `Command { std: "docker" "inspect" "caa04d3d5d737da53f54e8a546b4b1d44439819ef4b5f0f85cd24b4365b6e320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa04d3d5d737da53f54e8a546b4b1d44439819ef4b5f0f85cd24b4365b6e320", kill_on_drop: false }`
[INFO] [stdout] caa04d3d5d737da53f54e8a546b4b1d44439819ef4b5f0f85cd24b4365b6e320
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dd469426b31c587be83647f0bafefa222bd080dbaa9e226da315293ea16751a
[INFO] running `Command { std: "docker" "start" "-a" "2dd469426b31c587be83647f0bafefa222bd080dbaa9e226da315293ea16751a", kill_on_drop: false }`
[INFO] [stderr]    Compiling id_tree_layout v2.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "2dd469426b31c587be83647f0bafefa222bd080dbaa9e226da315293ea16751a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd469426b31c587be83647f0bafefa222bd080dbaa9e226da315293ea16751a", kill_on_drop: false }`
[INFO] [stdout] 2dd469426b31c587be83647f0bafefa222bd080dbaa9e226da315293ea16751a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c10d66abf716968073c23e3e873c31c3f3163882f4c9f6775e2b530345f05c4e
[INFO] running `Command { std: "docker" "start" "-a" "c10d66abf716968073c23e3e873c31c3f3163882f4c9f6775e2b530345f05c4e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/id_tree_layout-0f87b967ae04fec6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/embedder_tests.rs (/opt/rustwide/target/debug/deps/embedder_tests-8cecbf2cbc52db21)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test empty_tree ... ok
[INFO] [stdout] test more_complex_tree ... ok
[INFO] [stdout] test moved_nodes ... ok
[INFO] [stdout] test tree_with_single_node ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests id_tree_layout
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::with_drawer (line 87) ... ok
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::new (line 30) ... ok
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::with_file_path (line 57) ... ok
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::write (line 128) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::write (line 128) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/layouter.rs:20:14:
[INFO] [stdout] Failed writing layout: LayouterError { description: "IoError", io_error: Some(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }) }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55eeb32e66e5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x55eeb32e66e5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55eeb32e66e5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55eeb32e66e5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55eeb33078fb - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x55eeb33078fb - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x55eeb32e496f - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x55eeb32e64be - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55eeb32e64be - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55eeb32e7829 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x55eeb32e756d - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x55eeb32e7cc3 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x55eeb32e7ba4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x55eeb32e6ba9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x55eeb32e78d7 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x55eeb32a1bb3 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x55eeb32a20e6 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x55eeb32a6453 - core::result::Result<T,E>::expect::h7d57764be985fece
[INFO] [stdout]   18:     0x55eeb32aaa4b - rust_out::main::_doctest_main_src_layouter_rs_128_0::h601f7825d87297b1
[INFO] [stdout]   19:     0x55eeb32aa966 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   20:     0x55eeb32a4923 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   21:     0x55eeb32a3d66 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   22:     0x55eeb32a3dc9 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   23:     0x55eeb32e267d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   24:     0x55eeb32e267d - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   25:     0x55eeb32e267d - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   26:     0x55eeb32e267d - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   27:     0x55eeb32e267d - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   28:     0x55eeb32e267d - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   29:     0x55eeb32e267d - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   30:     0x55eeb32e267d - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   31:     0x55eeb32e267d - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   32:     0x55eeb32a3da7 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   33:     0x55eeb32aaac5 - main
[INFO] [stdout]   34:     0x7f68df1ffd90 - <unknown>
[INFO] [stdout]   35:     0x7f68df1ffe40 - __libc_start_main
[INFO] [stdout]   36:     0x55eeb32a23c5 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::write (line 128)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "c10d66abf716968073c23e3e873c31c3f3163882f4c9f6775e2b530345f05c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c10d66abf716968073c23e3e873c31c3f3163882f4c9f6775e2b530345f05c4e", kill_on_drop: false }`
[INFO] [stdout] c10d66abf716968073c23e3e873c31c3f3163882f4c9f6775e2b530345f05c4e
[INFO] testing id_tree_layout-2.0.4 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate id_tree_layout 2.0.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate id_tree_layout 2.0.4 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate id_tree_layout 2.0.4
[INFO] finished tweaking crates.io crate id_tree_layout 2.0.4
[INFO] tweaked toml for crates.io crate id_tree_layout 2.0.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate id_tree_layout 2.0.4 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff90a85d3c23e9f0c59ba8517e02f336337dc1c5a2b14e55b7bcfd5f3d2f8af0
[INFO] running `Command { std: "docker" "start" "-a" "ff90a85d3c23e9f0c59ba8517e02f336337dc1c5a2b14e55b7bcfd5f3d2f8af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff90a85d3c23e9f0c59ba8517e02f336337dc1c5a2b14e55b7bcfd5f3d2f8af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff90a85d3c23e9f0c59ba8517e02f336337dc1c5a2b14e55b7bcfd5f3d2f8af0", kill_on_drop: false }`
[INFO] [stdout] ff90a85d3c23e9f0c59ba8517e02f336337dc1c5a2b14e55b7bcfd5f3d2f8af0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a5274f642f313e02520963ebfc71db5bdb91ec402df0aa04fa67aff2142ebce
[INFO] running `Command { std: "docker" "start" "-a" "0a5274f642f313e02520963ebfc71db5bdb91ec402df0aa04fa67aff2142ebce", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling xml_writer v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling id_tree v1.8.0
[INFO] [stderr]    Compiling id_tree_layout v2.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "0a5274f642f313e02520963ebfc71db5bdb91ec402df0aa04fa67aff2142ebce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5274f642f313e02520963ebfc71db5bdb91ec402df0aa04fa67aff2142ebce", kill_on_drop: false }`
[INFO] [stdout] 0a5274f642f313e02520963ebfc71db5bdb91ec402df0aa04fa67aff2142ebce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8179a9e2d395ffdbadd9bff4073f6c53df558d977b7f8249ad63f6e1e834f383
[INFO] running `Command { std: "docker" "start" "-a" "8179a9e2d395ffdbadd9bff4073f6c53df558d977b7f8249ad63f6e1e834f383", kill_on_drop: false }`
[INFO] [stderr]    Compiling id_tree_layout v2.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "8179a9e2d395ffdbadd9bff4073f6c53df558d977b7f8249ad63f6e1e834f383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8179a9e2d395ffdbadd9bff4073f6c53df558d977b7f8249ad63f6e1e834f383", kill_on_drop: false }`
[INFO] [stdout] 8179a9e2d395ffdbadd9bff4073f6c53df558d977b7f8249ad63f6e1e834f383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d666dd467a6bb090e0759d60eea9da65b1eda0690742197098b2e3a70131aa0f
[INFO] running `Command { std: "docker" "start" "-a" "d666dd467a6bb090e0759d60eea9da65b1eda0690742197098b2e3a70131aa0f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/id_tree_layout-0f87b967ae04fec6)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/embedder_tests.rs (/opt/rustwide/target/debug/deps/embedder_tests-8cecbf2cbc52db21)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[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 4 tests
[INFO] [stdout] test more_complex_tree ... ok
[INFO] [stdout] test empty_tree ... ok
[INFO] [stderr]    Doc-tests id_tree_layout
[INFO] [stdout] test moved_nodes ... ok
[INFO] [stdout] test tree_with_single_node ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::new (line 30) ... ok
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::with_file_path (line 57) ... ok
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::with_drawer (line 87) ... ok
[INFO] [stdout] test src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::write (line 128) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::write (line 128) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/layouter.rs:20:14:
[INFO] [stdout] Failed writing layout: LayouterError { description: "IoError", io_error: Some(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }) }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x556028915805 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x556028915805 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x556028915805 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x556028915805 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x5560289369cb - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x5560289369cb - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x5560289139df - std::io::Write::write_fmt::h456b7988df61daf3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x5560289155de - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5560289155de - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x556028916889 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x556028916658 - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x556028916d23 - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x556028916c04 - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x556028915cc9 - std::sys_common::backtrace::__rust_end_short_backtrace::h19508a8f8ae71dc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x556028916937 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x5560288d0b93 - core::panicking::panic_fmt::h2ba8af99174d83ea
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x5560288d10c6 - core::result::unwrap_failed::h52f3bbb78b59f71d
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x5560288d53b3 - core::result::Result<T,E>::expect::h0578e348c498b3a4
[INFO] [stdout]   18:     0x5560288d9a5b - rust_out::main::_doctest_main_src_layouter_rs_128_0::he039097821d202d2
[INFO] [stdout]   19:     0x5560288d9976 - rust_out::main::h90fc46ea9798ded1
[INFO] [stdout]   20:     0x5560288d3903 - core::ops::function::FnOnce::call_once::h48eb9b1eb2de063c
[INFO] [stdout]   21:     0x5560288d2d46 - std::sys_common::backtrace::__rust_begin_short_backtrace::h747a6d1e1b11dda9
[INFO] [stdout]   22:     0x5560288d2da9 - std::rt::lang_start::{{closure}}::hc32502aff423e72f
[INFO] [stdout]   23:     0x55602891179d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hac8b4a62b6f52371
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   24:     0x55602891179d - std::panicking::try::do_call::h6fc24bc97db29d34
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   25:     0x55602891179d - std::panicking::try::hc544b64aa2eea933
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   26:     0x55602891179d - std::panic::catch_unwind::hefb17e81fb559b9c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   27:     0x55602891179d - std::rt::lang_start_internal::{{closure}}::h834103e2d23d958b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:48
[INFO] [stdout]   28:     0x55602891179d - std::panicking::try::do_call::he39c25d597788515
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   29:     0x55602891179d - std::panicking::try::hf4ef8dd97697f2c7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   30:     0x55602891179d - std::panic::catch_unwind::haa22d191a5c8abfb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   31:     0x55602891179d - std::rt::lang_start_internal::h8104aca277c551bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:20
[INFO] [stdout]   32:     0x5560288d2d87 - std::rt::lang_start::h363611def46ee6df
[INFO] [stdout]   33:     0x5560288d9ad5 - main
[INFO] [stdout]   34:     0x7f47771e9d90 - <unknown>
[INFO] [stdout]   35:     0x7f47771e9e40 - __libc_start_main
[INFO] [stdout]   36:     0x5560288d13a5 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/layouter.rs - layouter::Layouter<'a,'b,'c,T>::write (line 128)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d666dd467a6bb090e0759d60eea9da65b1eda0690742197098b2e3a70131aa0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d666dd467a6bb090e0759d60eea9da65b1eda0690742197098b2e3a70131aa0f", kill_on_drop: false }`
[INFO] [stdout] d666dd467a6bb090e0759d60eea9da65b1eda0690742197098b2e3a70131aa0f
