[INFO] fetching crate clio 0.1.1...
[INFO] testing clio-0.1.1 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate clio 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate clio 0.1.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clio 0.1.1
[INFO] finished tweaking crates.io crate clio 0.1.1
[INFO] tweaked toml for crates.io crate clio 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4888d0d022703760dca5e9ad6f5a1a94b610d981037d729a77235afac09a52e
[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" "a4888d0d022703760dca5e9ad6f5a1a94b610d981037d729a77235afac09a52e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4888d0d022703760dca5e9ad6f5a1a94b610d981037d729a77235afac09a52e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4888d0d022703760dca5e9ad6f5a1a94b610d981037d729a77235afac09a52e", kill_on_drop: false }`
[INFO] [stdout] a4888d0d022703760dca5e9ad6f5a1a94b610d981037d729a77235afac09a52e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab703e90a12f5304d33bfec35b049f9f078230d30d3b55a591efe3e01c2b58ff
[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" "ab703e90a12f5304d33bfec35b049f9f078230d30d3b55a591efe3e01c2b58ff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling clio v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "ab703e90a12f5304d33bfec35b049f9f078230d30d3b55a591efe3e01c2b58ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab703e90a12f5304d33bfec35b049f9f078230d30d3b55a591efe3e01c2b58ff", kill_on_drop: false }`
[INFO] [stdout] ab703e90a12f5304d33bfec35b049f9f078230d30d3b55a591efe3e01c2b58ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 225a580ad0df61bedfd5da705438e234d0a9815cfc3d2780c90df45735fd6ca6
[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" "225a580ad0df61bedfd5da705438e234d0a9815cfc3d2780c90df45735fd6ca6", kill_on_drop: false }`
[INFO] [stderr]    Compiling clio v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "225a580ad0df61bedfd5da705438e234d0a9815cfc3d2780c90df45735fd6ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "225a580ad0df61bedfd5da705438e234d0a9815cfc3d2780c90df45735fd6ca6", kill_on_drop: false }`
[INFO] [stdout] 225a580ad0df61bedfd5da705438e234d0a9815cfc3d2780c90df45735fd6ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-10-09" "test" "--frozen", 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] 870454e2c231927be18156186e3ef334af692879f10f72bc650027a5632aab9f
[INFO] running `Command { std: "docker" "start" "-a" "870454e2c231927be18156186e3ef334af692879f10f72bc650027a5632aab9f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/clio-7f5d4e9d4449dd62
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests clio
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/input.rs - input::Input::is_empty (line 42) ... FAILED
[INFO] [stdout] test src/input.rs - input::Input::len (line 26) ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/lib.rs - (line 7) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/input.rs - input::Input::is_empty (line 42) stdout ----
[INFO] [stdout] error[E0423]: expected function, found macro `assert_eq`
[INFO] [stdout]  --> src/input.rs:45:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | assert_eq(Some(true), file.is_empty());
[INFO] [stdout]   | ^^^^^^^^^ not a function
[INFO] [stdout]   |
[INFO] [stdout] help: use `!` to invoke the macro
[INFO] [stdout]   |
[INFO] [stdout] 6 | assert_eq!(Some(true), file.is_empty());
[INFO] [stdout]   |          ^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/input.rs:43:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | let file = clio::Input::new("foo.txt")?;
[INFO] [stdout]   |                             ^^^^^^^^^ expected struct `OsStr`, found `str`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected reference `&OsStr`
[INFO] [stdout]              found reference `&'static str`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
[INFO] [stdout]  --> src/input.rs:43:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | / fn main() {
[INFO] [stdout] 4 | | let file = clio::Input::new("foo.txt")?;
[INFO] [stdout]   | |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5 | |
[INFO] [stdout] 6 | | assert_eq(Some(true), file.is_empty());
[INFO] [stdout] 7 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0423.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/input.rs - input::Input::len (line 26) stdout ----
[INFO] [stdout] error[E0423]: expected function, found macro `assert_eq`
[INFO] [stdout]  --> src/input.rs:29:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | assert_eq(Some(0), file.len());
[INFO] [stdout]   | ^^^^^^^^^ not a function
[INFO] [stdout]   |
[INFO] [stdout] help: use `!` to invoke the macro
[INFO] [stdout]   |
[INFO] [stdout] 6 | assert_eq!(Some(0), file.len());
[INFO] [stdout]   |          ^
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/input.rs:27:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | let file = clio::Input::new("foo.txt")?;
[INFO] [stdout]   |                             ^^^^^^^^^ expected struct `OsStr`, found `str`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected reference `&OsStr`
[INFO] [stdout]              found reference `&'static str`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
[INFO] [stdout]  --> src/input.rs:27:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | / fn main() {
[INFO] [stdout] 4 | | let file = clio::Input::new("foo.txt")?;
[INFO] [stdout]   | |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5 | |
[INFO] [stdout] 6 | | assert_eq(Some(0), file.len());
[INFO] [stdout] 7 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0423.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 7) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'index out of bounds: the len is 1 but the index is 1', src/lib.rs:6:37
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55df26033650 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x55df26033650 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55df26033650 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x55df26033650 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x55df2604bd8c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x55df26031582 - std::io::Write::write_fmt::hac97d5cb5753e2ec
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x55df2603577d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    7:     0x55df2603577d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    8:     0x55df2603577d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]    9:     0x55df26035428 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:227
[INFO] [stdout]   10:     0x55df26035e61 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   11:     0x55df26035a09 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   12:     0x55df26033adc - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   13:     0x55df260359c9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   14:     0x55df2604b0a1 - core::panicking::panic_fmt::h5b17d4a0e853d0f5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/panicking.rs:85
[INFO] [stdout]   15:     0x55df2604b062 - core::panicking::panic_bounds_check::h8425c6fb7de41e04
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/panicking.rs:62
[INFO] [stdout]   16:     0x55df2601e658 - <usize as core::slice::index::SliceIndex<[T]>>::index::h71906a3efb618ee6
[INFO] [stdout]   17:     0x55df2601c213 - core::slice::index::<impl core::ops::index::Index<I> for [T]>::index::hd864bd8dd25700d0
[INFO] [stdout]   18:     0x55df2601e773 - <alloc::vec::Vec<T> as core::ops::index::Index<I>>::index::h044fb650a31b3296
[INFO] [stdout]   19:     0x55df2601edbe - rust_out::main::h23bf339f3cf43bd2
[INFO] [stdout]   20:     0x55df2601afe6 - core::ops::function::FnOnce::call_once::h396d8a7789748f63
[INFO] [stdout]   21:     0x55df2601a3f9 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f16a0a35d70fd3d
[INFO] [stdout]   22:     0x55df2601a93c - std::rt::lang_start::{{closure}}::h040a5d8245fd796c
[INFO] [stdout]   23:     0x55df26036287 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h908982dfc31b926f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:259
[INFO] [stdout]   24:     0x55df26036287 - std::panicking::try::do_call::h92777899503b7584
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   25:     0x55df26036287 - std::panicking::try::h8815656b2b76e792
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   26:     0x55df26036287 - std::panic::catch_unwind::h112ab81228f50b46
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   27:     0x55df26036287 - std::rt::lang_start_internal::h1772a706c7575c24
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:51
[INFO] [stdout]   28:     0x55df2601a918 - std::rt::lang_start::h58a57bc6626b5430
[INFO] [stdout]   29:     0x55df2601f0eb - main
[INFO] [stdout]   30:     0x7f9345c910b3 - __libc_start_main
[INFO] [stdout]   31:     0x55df2601a0ae - _start
[INFO] [stdout]   32:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/input.rs - input::Input::is_empty (line 42)
[INFO] [stdout]     src/input.rs - input::Input::len (line 26)
[INFO] [stdout]     src/lib.rs - (line 7)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "870454e2c231927be18156186e3ef334af692879f10f72bc650027a5632aab9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "870454e2c231927be18156186e3ef334af692879f10f72bc650027a5632aab9f", kill_on_drop: false }`
[INFO] [stdout] 870454e2c231927be18156186e3ef334af692879f10f72bc650027a5632aab9f
