[INFO] crate buf-read-ext 0.3.0 is already in cache
[INFO] testing buf-read-ext-0.3.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate buf-read-ext 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate buf-read-ext 0.3.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate buf-read-ext 0.3.0
[INFO] finished tweaking crates.io crate buf-read-ext 0.3.0
[INFO] tweaked toml for crates.io crate buf-read-ext 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 731baabbd37d7b5dd7a1dd905cc1d42c49557c7373fcff05d2a764ef294bb8e7
[INFO] running `"docker" "start" "-a" "731baabbd37d7b5dd7a1dd905cc1d42c49557c7373fcff05d2a764ef294bb8e7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling buf-read-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:112:29
[INFO] [stderr]     |
[INFO] [stderr] 112 | ...                   try!(out.write_all(&token[..prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 | ...                   try!(out.write_all(&token[..prefix_len - next_prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 try!(out.write_all(&buffer[..index]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |             try!(out.write_all(&buffer[..buffer.len()-reserve]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:46:84
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn stream_until_token<R: BufRead + ?Sized, W: Write>(stream: &mut R, token: &[u8], mut out: &mut W)
[INFO] [stderr]    |                                                                                    ----^^^
[INFO] [stderr]    |                                                                                    |
[INFO] [stderr]    |                                                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `"docker" "inspect" "731baabbd37d7b5dd7a1dd905cc1d42c49557c7373fcff05d2a764ef294bb8e7"`
[INFO] running `"docker" "rm" "-f" "731baabbd37d7b5dd7a1dd905cc1d42c49557c7373fcff05d2a764ef294bb8e7"`
[INFO] [stdout] 731baabbd37d7b5dd7a1dd905cc1d42c49557c7373fcff05d2a764ef294bb8e7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3438f4b780c73fcae4e2818d06ddefc0b719036e5e3e308e288d0f47c6c77a47
[INFO] running `"docker" "start" "-a" "3438f4b780c73fcae4e2818d06ddefc0b719036e5e3e308e288d0f47c6c77a47"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling buf-read-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:112:29
[INFO] [stderr]     |
[INFO] [stderr] 112 | ...                   try!(out.write_all(&token[..prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 | ...                   try!(out.write_all(&token[..prefix_len - next_prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 try!(out.write_all(&buffer[..index]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |             try!(out.write_all(&buffer[..buffer.len()-reserve]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:46:84
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn stream_until_token<R: BufRead + ?Sized, W: Write>(stream: &mut R, token: &[u8], mut out: &mut W)
[INFO] [stderr]    |                                                                                    ----^^^
[INFO] [stderr]    |                                                                                    |
[INFO] [stderr]    |                                                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:112:29
[INFO] [stderr]     |
[INFO] [stderr] 112 | ...                   try!(out.write_all(&token[..prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 | ...                   try!(out.write_all(&token[..prefix_len - next_prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 try!(out.write_all(&buffer[..index]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |             try!(out.write_all(&buffer[..buffer.len()-reserve]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:46:84
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn stream_until_token<R: BufRead + ?Sized, W: Write>(stream: &mut R, token: &[u8], mut out: &mut W)
[INFO] [stderr]    |                                                                                    ----^^^
[INFO] [stderr]    |                                                                                    |
[INFO] [stderr]    |                                                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "3438f4b780c73fcae4e2818d06ddefc0b719036e5e3e308e288d0f47c6c77a47"`
[INFO] running `"docker" "rm" "-f" "3438f4b780c73fcae4e2818d06ddefc0b719036e5e3e308e288d0f47c6c77a47"`
[INFO] [stdout] 3438f4b780c73fcae4e2818d06ddefc0b719036e5e3e308e288d0f47c6c77a47
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4f3dbd202da02aa7b5155eb4fd8c67ceb5873c765d3812f219569a56421cc26c
[INFO] running `"docker" "start" "-a" "4f3dbd202da02aa7b5155eb4fd8c67ceb5873c765d3812f219569a56421cc26c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:112:29
[INFO] [stderr]     |
[INFO] [stderr] 112 | ...                   try!(out.write_all(&token[..prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 | ...                   try!(out.write_all(&token[..prefix_len - next_prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 try!(out.write_all(&buffer[..index]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |             try!(out.write_all(&buffer[..buffer.len()-reserve]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:46:84
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn stream_until_token<R: BufRead + ?Sized, W: Write>(stream: &mut R, token: &[u8], mut out: &mut W)
[INFO] [stderr]    |                                                                                    ----^^^
[INFO] [stderr]    |                                                                                    |
[INFO] [stderr]    |                                                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:112:29
[INFO] [stderr]     |
[INFO] [stderr] 112 | ...                   try!(out.write_all(&token[..prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:116:29
[INFO] [stderr]     |
[INFO] [stderr] 116 | ...                   try!(out.write_all(&token[..prefix_len - next_prefix_len]));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 try!(out.write_all(&buffer[..index]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |             try!(out.write_all(&buffer[..buffer.len()-reserve]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:46:84
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn stream_until_token<R: BufRead + ?Sized, W: Write>(stream: &mut R, token: &[u8], mut out: &mut W)
[INFO] [stderr]    |                                                                                    ----^^^
[INFO] [stderr]    |                                                                                    |
[INFO] [stderr]    |                                                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/buf_read_ext-48e799bc97984563
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::stream_until_token_large_token_test ... ok
[INFO] [stdout] test tests::stream_until_token_straddle_test ... ok
[INFO] [stdout] test tests::stream_until_token_double_straddle_test ... ok
[INFO] [stdout] test tests::stream_until_token_complex_test ... ok
[INFO] [stdout] test tests::stream_until_token ... ok
[INFO] [stderr]    Doc-tests buf-read-ext
[INFO] [stdout] test tests::stream_until_token_multiple_prefix_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4f3dbd202da02aa7b5155eb4fd8c67ceb5873c765d3812f219569a56421cc26c"`
[INFO] running `"docker" "rm" "-f" "4f3dbd202da02aa7b5155eb4fd8c67ceb5873c765d3812f219569a56421cc26c"`
[INFO] [stdout] 4f3dbd202da02aa7b5155eb4fd8c67ceb5873c765d3812f219569a56421cc26c