[INFO] cloning repository https://github.com/emk/rust-slow-iteration-demo
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Frust-slow-iteration-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2ea535c506de87273be0529ef77b4ce8c19681b
[INFO] testing emk/rust-slow-iteration-demo against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Frust-slow-iteration-demo" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emk/rust-slow-iteration-demo on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc2/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 `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8752724a92ce9717d4d30ee724e06d588b3d8467d5008203bd72a2bd576ed4da
[INFO] running `Command { std: "docker" "start" "-a" "8752724a92ce9717d4d30ee724e06d588b3d8467d5008203bd72a2bd576ed4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8752724a92ce9717d4d30ee724e06d588b3d8467d5008203bd72a2bd576ed4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8752724a92ce9717d4d30ee724e06d588b3d8467d5008203bd72a2bd576ed4da", kill_on_drop: false }`
[INFO] [stdout] 8752724a92ce9717d4d30ee724e06d588b3d8467d5008203bd72a2bd576ed4da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be5cfdbd637c8b4d5be2d98dd55c1bbf56d52f764459c31c00ad9e89cf5ae50e
[INFO] running `Command { std: "docker" "start" "-a" "be5cfdbd637c8b4d5be2d98dd55c1bbf56d52f764459c31c00ad9e89cf5ae50e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-slow-iteration-demo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0496]: lifetime name `'a` shadows a lifetime name that is already in scope
[INFO] [stdout]   --> src/lib.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl<'a> Buffer for BufferedReader<'a> {
[INFO] [stdout]    |      -- first declared here
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn next_line<'a>(&'a mut self) -> Option<&'a str> {
[INFO] [stdout]    |                  ^^ lifetime `'a` already in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]   --> src/lib.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     offset: uint,
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `range` is private
[INFO] [stdout]   --> src/lib.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 23 | use std::iter::range;
[INFO] [stdout]    |                ^^^^^ private module
[INFO] [stdout]    |
[INFO] [stdout] note: the module `range` is defined here
[INFO] [stdout]   --> /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/iter/mod.rs:457:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(macro_rules, trace_macros)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `macro_rules` has been stable since `1.0.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stdout]    --> src/lib.rs:112:3
[INFO] [stdout]     |
[INFO] [stdout] 112 | #[bench]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout]     = note: `#[warn(soft_unstable)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stdout]    --> src/lib.rs:176:3
[INFO] [stdout]     |
[INFO] [stdout] 176 | #[bench]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stdout]    --> src/lib.rs:229:3
[INFO] [stdout]     |
[INFO] [stdout] 229 | #[bench]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `streaming_for`
[INFO] [stdout]    --> src/lib.rs:214:14
[INFO] [stdout]     |
[INFO] [stdout] 214 | macro_rules! streaming_for {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/lib.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |     for _ in range(0u, 200) { result.push_str(LINE); }
[INFO] [stdout]    |                    ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'test'
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | extern crate test;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #50297 <https://github.com/rust-lang/rust/issues/50297> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `macro_rules` has been stable since 1.0.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(macro_rules, trace_macros)]
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(macro_rules, trace_macros)]
[INFO] [stdout]    |                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]   --> src/lib.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 | impl<'a> Iterator<(String,String,String)> for CopyingParser<'a> {
[INFO] [stdout]    |          ^^^^^^^^ expected 0 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] help: replace the generic bound with the associated type
[INFO] [stdout]    |
[INFO] [stdout] 98 | impl<'a> Iterator<Item = (String,String,String)> for CopyingParser<'a> {
[INFO] [stdout]    |                   ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0412, E0496, E0554, E0603, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-slow-iteration-demo` (lib) due to 9 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "be5cfdbd637c8b4d5be2d98dd55c1bbf56d52f764459c31c00ad9e89cf5ae50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be5cfdbd637c8b4d5be2d98dd55c1bbf56d52f764459c31c00ad9e89cf5ae50e", kill_on_drop: false }`
[INFO] [stdout] be5cfdbd637c8b4d5be2d98dd55c1bbf56d52f764459c31c00ad9e89cf5ae50e
