[INFO] fetching crate bincode-no-std 1.0.0...
[INFO] checking bincode-no-std-1.0.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate bincode-no-std 1.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate bincode-no-std 1.0.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bincode-no-std 1.0.0
[INFO] finished tweaking crates.io crate bincode-no-std 1.0.0
[INFO] tweaked toml for crates.io crate bincode-no-std 1.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1cc6b99a6e33b1fc191adf44f782331a3b90b9f76fe73ca8c442c04fa2b67c9
[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" "a1cc6b99a6e33b1fc191adf44f782331a3b90b9f76fe73ca8c442c04fa2b67c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1cc6b99a6e33b1fc191adf44f782331a3b90b9f76fe73ca8c442c04fa2b67c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1cc6b99a6e33b1fc191adf44f782331a3b90b9f76fe73ca8c442c04fa2b67c9", kill_on_drop: false }`
[INFO] [stdout] a1cc6b99a6e33b1fc191adf44f782331a3b90b9f76fe73ca8c442c04fa2b67c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77290715b0966a15d11ab420004efe53d5f55e70c1503beb51bedcb3fce37618
[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" "77290715b0966a15d11ab420004efe53d5f55e70c1503beb51bedcb3fce37618", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling core_io v0.1.20190701
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr] error: failed to run custom build command for `core_io v0.1.20190701`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/core_io-649792e78ff5b95a/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Unknown compiler version, upgrade core_io?', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core_io-0.1.20190701/build.rs:73:69
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5624e1a48d90 - std::backtrace_rs::backtrace::libunwind::trace::h452faf99f32e7c93
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x5624e1a48d90 - std::backtrace_rs::backtrace::trace_unsynchronized::he40edc71437667a1
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x5624e1a48d90 - std::sys_common::backtrace::_print_fmt::h6c51d6ade71f46bf
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x5624e1a48d90 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3cd15d7003dec37a
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x5624e1a65ccc - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]      5:     0x5624e1a465d7 - std::io::Write::write_fmt::hac61caff894c35ae
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x5624e1a4aec0 - std::sys_common::backtrace::_print::haa2f390fb7957e3e
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x5624e1a4aec0 - std::sys_common::backtrace::print::h48c7cbbad9013bb1
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x5624e1a4aec0 - std::panicking::default_hook::{{closure}}::h8b7ff05a31e71d55
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x5624e1a4ac0c - std::panicking::default_hook::h2f00c78800d98e4c
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x5624e1a4b523 - std::panicking::rust_panic_with_hook::h4eaa635e4694aef3
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x5624e1a4b0f9 - std::panicking::begin_panic_handler::{{closure}}::hec242f1b136b5ff2
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x5624e1a491fc - std::sys_common::backtrace::__rust_end_short_backtrace::h1f3cc383ee6c0374
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x5624e1a4b0b9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x5624e1a64ff1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x5624e1a64d83 - core::option::expect_failed::h6bc6a05976f4cb88
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/core/src/option.rs:1213
[INFO] [stderr]     16:     0x5624e1a1709c - core::option::Option<T>::expect::ha92eabe2371f9913
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/core/src/option.rs:333
[INFO] [stderr]     17:     0x5624e1a133e5 - build_script_build::main::h2d469f2518c1c6ff
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core_io-0.1.20190701/build.rs:73
[INFO] [stderr]     18:     0x5624e1a1569b - core::ops::function::FnOnce::call_once::h0dab5332c802ce89
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x5624e1a1406e - std::sys_common::backtrace::__rust_begin_short_backtrace::h2bf3a49851044b7f
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x5624e1a185b1 - std::rt::lang_start::{{closure}}::h1c022a298f55fbd5
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x5624e1a4b921 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hecc21eb9018cc197
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x5624e1a4b921 - std::panicking::try::do_call::h174ad655d084b5c7
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x5624e1a4b921 - std::panicking::try::h479e6054ce28de10
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x5624e1a4b921 - std::panic::catch_unwind::hb558ddea2b3e9c45
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x5624e1a4b921 - std::rt::lang_start_internal::h163149047f0a8b61
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x5624e1a18587 - std::rt::lang_start::h9d94163d632f71ed
[INFO] [stderr]                                  at /rustc/05c8870159e4f328578a970e125aa76d24f03b56/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x5624e1a13f6a - main
[INFO] [stderr]     28:     0x7f64451160b3 - __libc_start_main
[INFO] [stderr]     29:     0x5624e1a110ae - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "77290715b0966a15d11ab420004efe53d5f55e70c1503beb51bedcb3fce37618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77290715b0966a15d11ab420004efe53d5f55e70c1503beb51bedcb3fce37618", kill_on_drop: false }`
[INFO] [stdout] 77290715b0966a15d11ab420004efe53d5f55e70c1503beb51bedcb3fce37618