[INFO] cloning repository https://github.com/emk/rust-slow-iteration-demo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emk/rust-slow-iteration-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Frust-slow-iteration-demo"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Frust-slow-iteration-demo'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2ea535c506de87273be0529ef77b4ce8c19681b
[INFO] checking emk/rust-slow-iteration-demo against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Frust-slow-iteration-demo" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emk/rust-slow-iteration-demo on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/emk/rust-slow-iteration-demo
[INFO] finished tweaking git repo https://github.com/emk/rust-slow-iteration-demo
[INFO] tweaked toml for git repo https://github.com/emk/rust-slow-iteration-demo written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/emk/rust-slow-iteration-demo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39189bd3ccbac6d28d277384b5f8c98f3356c743f47fa303c09ac8c75c04a77b
[INFO] running `"docker" "start" "-a" "39189bd3ccbac6d28d277384b5f8c98f3356c743f47fa303c09ac8c75c04a77b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust-slow-iteration-demo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]   --> src/lib.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for _ in range(0u, 200) { result.push_str(LINE); }
[INFO] [stderr]    |                    ^^ invalid suffix `u`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `u` for integer literal
[INFO] [stderr]   --> src/lib.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for _ in range(0u, 200) { result.push_str(LINE); }
[INFO] [stderr]    |                    ^^ invalid suffix `u`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/lib.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |     offset: uint,
[INFO] [stderr]    |             ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: module `range` is private
[INFO] [stderr]   --> src/lib.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::iter::range;
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(macro_rules, trace_macros)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]   --> src/lib.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | extern crate test;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]    --> src/lib.rs:113:27
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn copying_parser(b: &mut test::Bencher) {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]    --> src/lib.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |             test::black_box(result);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]    --> src/lib.rs:177:29
[INFO] [stderr]     |
[INFO] [stderr] 177 | fn zero_copy_parser(b: &mut test::Bencher) {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]    --> src/lib.rs:189:33
[INFO] [stderr]     |
[INFO] [stderr] 189 |                 Some(line) => { test::black_box(line); }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]    --> src/lib.rs:230:39
[INFO] [stderr]     |
[INFO] [stderr] 230 | fn replacement_iterator_trait(b: &mut test::Bencher) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]    --> src/lib.rs:238:13
[INFO] [stderr]     |
[INFO] [stderr] 238 |             test::black_box(line);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0496]: lifetime name `'a` shadows a lifetime name that is already in scope
[INFO] [stderr]   --> src/lib.rs:74:18
[INFO] [stderr]    |
[INFO] [stderr] 68 | impl<'a> Buffer for BufferedReader<'a> {
[INFO] [stderr]    |      -- first declared here
[INFO] [stderr] ...
[INFO] [stderr] 74 |     fn next_line<'a>(&'a mut self) -> Option<&'a str> {
[INFO] [stderr]    |                  ^^ lifetime 'a already in scope
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1
[INFO] [stderr]   --> src/lib.rs:98:19
[INFO] [stderr]    |
[INFO] [stderr] 98 | impl<'a> Iterator<(String,String,String)> for CopyingParser<'a> {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 13 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0107, E0412, E0496, E0554, E0603, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0107`.
[INFO] [stderr] error: could not compile `rust-slow-iteration-demo`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/lib.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |     offset: uint,
[INFO] [stderr]    |             ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0603]: module `range` is private
[INFO] [stderr]   --> src/lib.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::iter::range;
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(macro_rules, trace_macros)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]   --> src/lib.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | extern crate test;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0496]: lifetime name `'a` shadows a lifetime name that is already in scope
[INFO] [stderr]   --> src/lib.rs:74:18
[INFO] [stderr]    |
[INFO] [stderr] 68 | impl<'a> Buffer for BufferedReader<'a> {
[INFO] [stderr]    |      -- first declared here
[INFO] [stderr] ...
[INFO] [stderr] 74 |     fn next_line<'a>(&'a mut self) -> Option<&'a str> {
[INFO] [stderr]    |                  ^^ lifetime 'a already in scope
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1
[INFO] [stderr]   --> src/lib.rs:98:19
[INFO] [stderr]    |
[INFO] [stderr] 98 | impl<'a> Iterator<(String,String,String)> for CopyingParser<'a> {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0107, E0412, E0496, E0554, E0603, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0107`.
[INFO] [stderr] error: could not compile `rust-slow-iteration-demo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "39189bd3ccbac6d28d277384b5f8c98f3356c743f47fa303c09ac8c75c04a77b"`
[INFO] running `"docker" "rm" "-f" "39189bd3ccbac6d28d277384b5f8c98f3356c743f47fa303c09ac8c75c04a77b"`
[INFO] [stdout] 39189bd3ccbac6d28d277384b5f8c98f3356c743f47fa303c09ac8c75c04a77b