[INFO] fetching crate template_cp 0.1.3...
[INFO] testing template_cp-0.1.3 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate template_cp 0.1.3 into /workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate template_cp 0.1.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "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-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781
[INFO] running `Command { std: "docker" "start" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", 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 1.11s
[INFO] running `Command { std: "docker" "inspect" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", 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 0.37s
[INFO] running `Command { std: "docker" "inspect" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/template_cp/48eb1f118a30e60f/out/template_cp-48eb1f118a30e60f)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/bin/new-bin.rs (/opt/rustwide/target/debug/build/template_cp/f56e92719a13c681/out/new_bin-f56e92719a13c681)
[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 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/build/template_cp/82fcd71c65c4864f/out/rust_bin-82fcd71c65c4864f)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/template.rs (/opt/rustwide/target/debug/build/template_cp/d17f5b70a9b88e15/out/template-d17f5b70a9b88e15)
[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 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] [stderr]      Running unittests src/bin/template_local.rs (/opt/rustwide/target/debug/build/template_cp/666b1b0f1c6856dd/out/template_local-666b1b0f1c6856dd)
[INFO] [stdout] 
[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/build/template_cp/0be3e90cbd9e366a/out/template_safe-0be3e90cbd9e366a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests template_cp
[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 8 tests
[INFO] [stdout] test src/iom.rs - iom::Scanner<R>::tok (line 78) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::Scanner<R>::tok (line 72) ... FAILED
[INFO] [stdout] test src/iom.rs - iom::Scanner<R>::new (line 49) ... 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::Scanner<R>::new (line 54) ... 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 78) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]   --> src/iom.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | 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] 79 - use cp_template::Scanner;
[INFO] [stdout] 79 + 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 72) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]   --> src/iom.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | 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] 73 - use cp_template::Scanner;
[INFO] [stdout] 73 + 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] 50 | 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] 50 - use cp_template::Scanner;
[INFO] [stdout] 50 + 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 8) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `cp_template`
[INFO] [stdout]  --> src/iom.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | 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] 9 - use cp_template::Scanner;
[INFO] [stdout] 9 + 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] 25 | 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] 25 - use cp_template::Scanner;
[INFO] [stdout] 25 + 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] 29 |     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] 30 |     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] 122 | writeln!(out, "{}", n).ok();
[INFO] [stdout]     |          ^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/io/write.rs:331:7
[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] 122 | 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] 115 + 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::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] 55 | 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] 55 - use cp_template::Scanner;
[INFO] [stdout] 55 + 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] 57 | let file = std::fs::File::open(filename)?;
[INFO] [stdout]    |                                ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `io` in this scope
[INFO] [stdout]   --> src/iom.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | 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] 54 + use std::io::BufReader;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `BufReader`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 58 - Scanner::new(io::BufReader::new(file))
[INFO] [stdout] 58 + 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] 54 | 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] 57 | 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] 54 | 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::file_reader (line 103) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (469) 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:     0x579bf44074b1 - std[617be2ca0a6fd877]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x579bf44074b1 - std[617be2ca0a6fd877]::backtrace_rs::backtrace::trace_unsynchronized::<std[617be2ca0a6fd877]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x579bf44074b1 - std[617be2ca0a6fd877]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x579bf44074b1 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x579bf441774a - <core[a373ad73a504971]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x579bf441774a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    6:     0x579bf440a5ac - core[a373ad73a504971]::io::write::default_write_fmt::<std[617be2ca0a6fd877]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x579bf440a5ac - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x579bf43f1786 - <std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x579bf43f1786 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:289:27
[INFO] [stdout]   10:     0x579bf4403ed1 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x579bf440408b - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:811:13
[INFO] [stdout]   12:     0x579bf43f1832 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:685:13
[INFO] [stdout]   13:     0x579bf43eaa39 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x579bf43f1f7d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:676:5
[INFO] [stdout]   15:     0x579bf4417ebc - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x579bf4417c92 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/result.rs:1870:5
[INFO] [stdout]   17:     0x579bf43ddf9f - rust_out[72a830746f8703f]::main::_doctest_main_src_iom_rs_103_0
[INFO] [stdout]   18:     0x579bf43dd1c6 - rust_out[72a830746f8703f]::main
[INFO] [stdout]   19:     0x579bf43de89b - <fn() as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   20:     0x579bf43dce66 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   21:     0x579bf43dd129 - std[617be2ca0a6fd877]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   22:     0x579bf4403678 - <&dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x579bf4403678 - std[617be2ca0a6fd877]::panicking::catch_unwind::do_call::<&dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:573:43
[INFO] [stdout]   24:     0x579bf4403678 - std[617be2ca0a6fd877]::panicking::catch_unwind::<i32, &dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:541:19
[INFO] [stdout]   25:     0x579bf4403678 - std[617be2ca0a6fd877]::panic::catch_unwind::<&dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x579bf4403678 - std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x579bf4403678 - std[617be2ca0a6fd877]::panicking::catch_unwind::do_call::<std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:573:43
[INFO] [stdout]   28:     0x579bf4403678 - std[617be2ca0a6fd877]::panicking::catch_unwind::<isize, std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:541:19
[INFO] [stdout]   29:     0x579bf4403678 - std[617be2ca0a6fd877]::panic::catch_unwind::<std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x579bf4403678 - std[617be2ca0a6fd877]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x579bf43dcb71 - std[617be2ca0a6fd877]::rt::lang_start::<()>
[INFO] [stdout]   32:     0x579bf43de8e5 - main
[INFO] [stdout]   33:     0x77a96c4cd601 - <unknown>
[INFO] [stdout]   34:     0x77a96c4cd718 - __libc_start_main
[INFO] [stdout]   35:     0x579bf43dc7f5 - _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 0.22s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781", kill_on_drop: false }`
[INFO] [stdout] b3a455a39a5a5e9b2b57e2995f321d6182d8b8fc485ec9db19448b9fc675a781
