[INFO] fetching crate template_cp 0.1.3...
[INFO] testing template_cp-0.1.3 against 1.91.0 for beta-1.92-2
[INFO] extracting crate template_cp 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate template_cp 0.1.3
[INFO] finished tweaking crates.io crate template_cp 0.1.3
[INFO] tweaked toml for crates.io crate template_cp 0.1.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate template_cp 0.1.3 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate template_cp 0.1.3 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6add777a99055220f31cf011d7231bcadb6430f0c74ccb5e7bc81cda7906bd42
[INFO] running `Command { std: "docker" "start" "-a" "6add777a99055220f31cf011d7231bcadb6430f0c74ccb5e7bc81cda7906bd42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6add777a99055220f31cf011d7231bcadb6430f0c74ccb5e7bc81cda7906bd42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6add777a99055220f31cf011d7231bcadb6430f0c74ccb5e7bc81cda7906bd42", kill_on_drop: false }`
[INFO] [stdout] 6add777a99055220f31cf011d7231bcadb6430f0c74ccb5e7bc81cda7906bd42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf31837fb011d4a6c70daac301c7da4e43abd130e7c3492154700a025b9bb27e
[INFO] running `Command { std: "docker" "start" "-a" "cf31837fb011d4a6c70daac301c7da4e43abd130e7c3492154700a025b9bb27e", kill_on_drop: false }`
[INFO] [stderr]    Compiling template_cp v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "cf31837fb011d4a6c70daac301c7da4e43abd130e7c3492154700a025b9bb27e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf31837fb011d4a6c70daac301c7da4e43abd130e7c3492154700a025b9bb27e", kill_on_drop: false }`
[INFO] [stdout] cf31837fb011d4a6c70daac301c7da4e43abd130e7c3492154700a025b9bb27e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87c2148e3ca9e9a16240415b3eb742b2a9f5c3563a55e8a6dc11b126ff24e0b5
[INFO] running `Command { std: "docker" "start" "-a" "87c2148e3ca9e9a16240415b3eb742b2a9f5c3563a55e8a6dc11b126ff24e0b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling template_cp v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "87c2148e3ca9e9a16240415b3eb742b2a9f5c3563a55e8a6dc11b126ff24e0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87c2148e3ca9e9a16240415b3eb742b2a9f5c3563a55e8a6dc11b126ff24e0b5", kill_on_drop: false }`
[INFO] [stdout] 87c2148e3ca9e9a16240415b3eb742b2a9f5c3563a55e8a6dc11b126ff24e0b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c63db03cf286442649bc8e4c1fb12576264571cafd400284a888c689ec9b4542
[INFO] running `Command { std: "docker" "start" "-a" "c63db03cf286442649bc8e4c1fb12576264571cafd400284a888c689ec9b4542", 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/template_cp-3dc0375c59b8f337)
[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 unittests src/bin/new-bin.rs (/opt/rustwide/target/debug/deps/new_bin-c4403daba650e58d)
[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 unittests src/bin/rust-bin.rs (/opt/rustwide/target/debug/deps/rust_bin-7a68054c8f8b8cce)
[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 unittests src/bin/template.rs (/opt/rustwide/target/debug/deps/template-00fb2f9215f652d6)
[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 unittests src/bin/template_local.rs (/opt/rustwide/target/debug/deps/template_local-5d644b6aecc4b628)
[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 unittests src/bin/template_safe.rs (/opt/rustwide/target/debug/deps/template_safe-3df9f4365350ce07)
[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]    Doc-tests template_cp
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/iom.rs - iom::Scanner<R>::tok (line 72) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::Scanner<R>::tok (line 78) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::Scanner<R>::new (line 49) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::Scanner<R>::new (line 54) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::Scanner (line 8) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::Scanner (line 24) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::file_writer (line 116) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::file_reader (line 103) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/iom.rs - iom::Scanner<R>::tok (line 72) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]  --> src/iom.rs:73:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cp_template::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `cp_template`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 - use cp_template::Scanner;
[INFO] [stdout] 3 + use template_cp::Scanner;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/iom.rs - iom::Scanner<R>::tok (line 78) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]  --> src/iom.rs:79:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cp_template::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `cp_template`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 - use cp_template::Scanner;
[INFO] [stdout] 3 + use template_cp::Scanner;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/iom.rs - iom::Scanner<R>::new (line 49) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]  --> src/iom.rs:50:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cp_template::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `cp_template`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 - use cp_template::Scanner;
[INFO] [stdout] 3 + use template_cp::Scanner;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/iom.rs - iom::Scanner<R>::new (line 54) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]  --> src/iom.rs:55:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cp_template::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `cp_template`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 - use cp_template::Scanner;
[INFO] [stdout] 3 + use template_cp::Scanner;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `filename` in this scope
[INFO] [stdout]  --> src/iom.rs:57:32
[INFO] [stdout]   |
[INFO] [stdout] 5 | let file = std::fs::File::open(filename)?;
[INFO] [stdout]   |                                ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `io`
[INFO] [stdout]  --> src/iom.rs:58:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | Scanner::new(io::BufReader::new(file))
[INFO] [stdout]   |              ^^ use of unresolved module or unlinked crate `io`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `io`, use `cargo add io` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::io::BufReader;
[INFO] [stdout]   |
[INFO] [stdout] help: if you import `BufReader`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 6 - Scanner::new(io::BufReader::new(file))
[INFO] [stdout] 6 + Scanner::new(BufReader::new(file))
[INFO] [stdout]   |
[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 `FromResidual`)
[INFO] [stdout]  --> src/iom.rs:57:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_iom_rs_54_0() {
[INFO] [stdout]   |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 5 | let file = std::fs::File::open(filename)?;
[INFO] [stdout]   |                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_iom_rs_54_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                         +++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/iom.rs - iom::Scanner (line 8) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]  --> src/iom.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use cp_template::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `cp_template`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 2 - use cp_template::Scanner;
[INFO] [stdout] 2 + use template_cp::Scanner;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/iom.rs - iom::Scanner (line 24) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]  --> src/iom.rs:25:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use cp_template::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `cp_template`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 2 - use cp_template::Scanner;
[INFO] [stdout] 2 + use template_cp::Scanner;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `read_file` in this scope
[INFO] [stdout]  --> src/iom.rs:29:20
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut scan = read_file("in.txt").unwrap();
[INFO] [stdout]   |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `writer_file` in this scope
[INFO] [stdout]  --> src/iom.rs:30:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut out = writer_file("out.txt").unwrap();
[INFO] [stdout]   |                   ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/iom.rs - iom::file_writer (line 116) stdout ----
[INFO] [stdout] error[E0599]: cannot write into `BufWriter<File>`
[INFO] [stdout]  --> src/iom.rs:122:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | writeln!(out, "{}", n).ok();
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   |
[INFO] [stdout]  --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1950:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: the method is available for `BufWriter<File>` here
[INFO] [stdout] note: must implement `io::Write`, `fmt::Write`, or have a `write_fmt` method
[INFO] [stdout]  --> src/iom.rs:122:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | writeln!(out, "{}", n).ok();
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Write` which provides `write_fmt` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::io::Write;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/iom.rs - iom::file_reader (line 103) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (79) panicked at src/iom.rs:7:38:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x570ca922b4e2 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x570ca922b4e2 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x570ca922b4e2 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x570ca922b4e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4e0a3aeea0f9c085
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x570ca923a1ff - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x570ca923a1ff - core::fmt::write::hecf68a131630c74d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x570ca9209971 - std::io::default_write_fmt::haf8355dc2afbec95
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x570ca9209971 - std::io::Write::write_fmt::h93c9a261259c931a
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x570ca920ece2 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x570ca921053c - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x570ca9210396 - std::panicking::default_hook::h63f9bf8161c5d325
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x570ca9210bc5 - std::panicking::panic_with_hook::h3173740e06bd0752
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x570ca9210a5a - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x570ca920ee19 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x570ca91fe3dd - __rustc[de0091b922c53d7e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x570ca923d620 - core::panicking::panic_fmt::h5138da2ef87be35b
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x570ca923ce86 - core::result::unwrap_failed::h5d9b16b0b732a2ac
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/result.rs:1855:5
[INFO] [stdout]   17:     0x570ca91fb428 - rust_out::main::_doctest_main_src_iom_rs_103_0::he56549c805057a3b
[INFO] [stdout]   18:     0x570ca91fb3a6 - rust_out::main::hcbdc0960c876f2af
[INFO] [stdout]   19:     0x570ca91fa5f3 - core::ops::function::FnOnce::call_once::hfb4119cacd246208
[INFO] [stdout]   20:     0x570ca91f9bd6 - std::sys::backtrace::__rust_begin_short_backtrace::h410c329a888fe2f7
[INFO] [stdout]   21:     0x570ca91f9bb9 - std::rt::lang_start::{{closure}}::h39fc2126d871a896
[INFO] [stdout]   22:     0x570ca920ad60 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc7ed5622678f5124
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x570ca920ad60 - std::panicking::catch_unwind::do_call::hc59414a11cf2a25a
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   24:     0x570ca920ad60 - std::panicking::catch_unwind::hff67b45e0819a036
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   25:     0x570ca920ad60 - std::panic::catch_unwind::hec0fb0db85f7fd60
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x570ca920ad60 - std::rt::lang_start_internal::{{closure}}::h74bea026352620a3
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x570ca920ad60 - std::panicking::catch_unwind::do_call::h931ef1bf7bdfcae2
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   28:     0x570ca920ad60 - std::panicking::catch_unwind::h3816830c825cbe04
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   29:     0x570ca920ad60 - std::panic::catch_unwind::h408406c8f02ebb9d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x570ca920ad60 - std::rt::lang_start_internal::hce2b8b328837374b
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x570ca91f9ba1 - std::rt::lang_start::h866de1957bb2b812
[INFO] [stdout]   32:     0x570ca91fb995 - main
[INFO] [stdout]   33:     0x78a6011531ca - <unknown>
[INFO] [stdout]   34:     0x78a60115328b - __libc_start_main
[INFO] [stdout]   35:     0x570ca91f9265 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/iom.rs - iom::Scanner (line 24)
[INFO] [stdout]     src/iom.rs - iom::Scanner (line 8)
[INFO] [stdout]     src/iom.rs - iom::Scanner<R>::new (line 49)
[INFO] [stdout]     src/iom.rs - iom::Scanner<R>::new (line 54)
[INFO] [stdout]     src/iom.rs - iom::Scanner<R>::tok (line 72)
[INFO] [stdout]     src/iom.rs - iom::Scanner<R>::tok (line 78)
[INFO] [stdout]     src/iom.rs - iom::file_reader (line 103)
[INFO] [stdout]     src/iom.rs - iom::file_writer (line 116)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 8 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "c63db03cf286442649bc8e4c1fb12576264571cafd400284a888c689ec9b4542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c63db03cf286442649bc8e4c1fb12576264571cafd400284a888c689ec9b4542", kill_on_drop: false }`
[INFO] [stdout] c63db03cf286442649bc8e4c1fb12576264571cafd400284a888c689ec9b4542
