[INFO] fetching crate nemo 0.2.1...
[INFO] checking nemo-0.2.1 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate nemo 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate nemo 0.2.1 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nemo 0.2.1
[INFO] finished tweaking crates.io crate nemo 0.2.1
[INFO] tweaked toml for crates.io crate nemo 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding compiletest_rs v0.0.10 (available: v0.11.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compiletest_rs v0.0.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3876ff40526896485382b4f835cbf6f5f060ae7fb0a3b2bacd14e20f8648ebc5
[INFO] running `Command { std: "docker" "start" "-a" "3876ff40526896485382b4f835cbf6f5f060ae7fb0a3b2bacd14e20f8648ebc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3876ff40526896485382b4f835cbf6f5f060ae7fb0a3b2bacd14e20f8648ebc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3876ff40526896485382b4f835cbf6f5f060ae7fb0a3b2bacd14e20f8648ebc5", kill_on_drop: false }`
[INFO] [stdout] 3876ff40526896485382b4f835cbf6f5f060ae7fb0a3b2bacd14e20f8648ebc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35a4df37278e6ff24c231fbe760ca9589200db776da7bd03e2bf317eab5b5fd1
[INFO] running `Command { std: "docker" "start" "-a" "35a4df37278e6ff24c231fbe760ca9589200db776da7bd03e2bf317eab5b5fd1", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking compiletest_rs v0.0.10
[INFO] [stderr]     Checking nemo v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(optin_builtin_traits)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: renamed to `auto_traits`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate rustc;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following crate versions were found:
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.dfsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.asan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.lsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.tsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.safestack.a
[INFO] [stdout]    = help: please recompile that crate using --crate-type lib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `impl Trait for .. {}` is an obsolete syntax
[INFO] [stdout]   --> src/session_types/choose.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl NotSame for .. { }
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `auto trait Trait {}` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nemo` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `std::dynamic_lib`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/procsrv.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::dynamic_lib::DynamicLibrary;
[INFO] [stdout]    |          ^^^^^^^^^^^ could not find `dynamic_lib` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test::MetricMap`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/runtest.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use test::MetricMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ no `MetricMap` in the root
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct instead
[INFO] [stdout]    |
[INFO] [stdout] 33 | use test::test::MetricMap;
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `DynMetricFn` in crate `test`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:211:11
[INFO] [stdout]     |
[INFO] [stdout] 211 |     test::DynMetricFn(Box::new(move |mm: &mut test::MetricMap| {
[INFO] [stdout]     |           ^^^^^^^^^^^ not found in `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `MetricMap` in crate `test`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:211:53
[INFO] [stdout]     |
[INFO] [stdout] 211 |     test::DynMetricFn(Box::new(move |mm: &mut test::MetricMap| {
[INFO] [stdout]     |                                                     ^^^^^^^^^ not found in `test`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 28  + use test::test::MetricMap;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `MetricMap`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 211 -     test::DynMetricFn(Box::new(move |mm: &mut test::MetricMap| {
[INFO] [stdout] 211 +     test::DynMetricFn(Box::new(move |mm: &mut MetricMap| {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `dynamic_lib`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(dynamic_lib)]
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `str_char`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(str_char)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/runtest.rs:1056:23
[INFO] [stdout]      |
[INFO] [stdout] 1056 |     let ch = haystack.char_at(*idx);
[INFO] [stdout]      |                       ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]     --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/runtest.rs:1067:27
[INFO] [stdout]      |
[INFO] [stdout] 1067 |         let ch = haystack.char_at(i);
[INFO] [stdout]      |                           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]     --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/runtest.rs:1087:27
[INFO] [stdout]      |
[INFO] [stdout] 1087 |         let ch = haystack.char_at(haystack_i);
[INFO] [stdout]      |                           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]     --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/errors.rs:65:37
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let (follow, adjusts) = if line.char_at(start + 3) == '|' {
[INFO] [stdout]    |                                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0560]: struct `TestOpts` has no field named `filter`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         filter: match config.filter {
[INFO] [stdout]     |         ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: a field with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 125 |         filters: match config.filter {
[INFO] [stdout]     |         ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:129:22
[INFO] [stdout]     |
[INFO] [stdout] 129 |         run_ignored: config.run_ignored,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^ expected `RunIgnored`, found `bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0063]: missing fields `compile_fail`, `end_col`, `end_line` and 6 other fields in initializer of `TestDesc`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:178:15
[INFO] [stdout]     |
[INFO] [stdout] 178 |         desc: test::TestDesc {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^ missing `compile_fail`, `end_col`, `end_line` and 6 other fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         runtest::run(config, &testfile)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<(), String>`, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `std::result::Result<(), String>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] help: try adding an expression at the end of the block
[INFO] [stdout]     |
[INFO] [stdout] 204 ~         runtest::run(config, &testfile);
[INFO] [stdout] 205 +         Ok(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:227:38
[INFO] [stdout]     |
[INFO] [stdout] 227 |                 if full_version_line.char_at(pos + 1) != '.' { continue }
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:228:39
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 if !full_version_line.char_at(pos + 2).is_digit(10) { continue }
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at_reverse` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:229:49
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 if pos > 0 && full_version_line.char_at_reverse(pos).is_digit(10) {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:233:38
[INFO] [stdout]     |
[INFO] [stdout] 233 |                    full_version_line.char_at(pos + 3).is_digit(10) {
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:267:43
[INFO] [stdout]     |
[INFO] [stdout] 267 |                 let l = full_version_line.char_at(pos + 1);
[INFO] [stdout]     |                                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:269:43
[INFO] [stdout]     |
[INFO] [stdout] 269 |                 let d = full_version_line.char_at(pos + 2);
[INFO] [stdout]     |                                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:271:43
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 let b = full_version_line.char_at(pos + 3);
[INFO] [stdout]     |                                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `char_at` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compiletest_rs-0.0.10/src/compiletest.rs:273:46
[INFO] [stdout]     |
[INFO] [stdout] 273 |                 let dash = full_version_line.char_at(pos + 4);
[INFO] [stdout]     |                                              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `chars` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/str/mod.rs:835:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 23 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0063, E0308, E0412, E0425, E0432, E0462, E0560, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0063`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compiletest_rs` (lib) due to 24 previous errors
[INFO] running `Command { std: "docker" "inspect" "35a4df37278e6ff24c231fbe760ca9589200db776da7bd03e2bf317eab5b5fd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a4df37278e6ff24c231fbe760ca9589200db776da7bd03e2bf317eab5b5fd1", kill_on_drop: false }`
[INFO] [stdout] 35a4df37278e6ff24c231fbe760ca9589200db776da7bd03e2bf317eab5b5fd1