[INFO] crate acc_reader 2.0.0 is already in cache
[INFO] testing acc_reader-2.0.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate acc_reader 2.0.0 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate acc_reader 2.0.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate acc_reader 2.0.0
[INFO] finished tweaking crates.io crate acc_reader 2.0.0
[INFO] tweaked toml for crates.io crate acc_reader 2.0.0 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 1d24cd16598f8afb65ee6e3b7080b697c7ce2c4b47fb6397d065a713cae43866
[INFO] running `"docker" "start" "-a" "1d24cd16598f8afb65ee6e3b7080b697c7ce2c4b47fb6397d065a713cae43866"`
[INFO] [stderr]    Compiling acc_reader v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:236:24
[INFO] [stderr]     |
[INFO] [stderr] 236 |             let read = try!(self.source.read(buf));
[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:281:21
[INFO] [stderr]     |
[INFO] [stderr] 281 |                     try!(self.source.read_to_end(&mut self.buf));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:298:17
[INFO] [stderr]     |
[INFO] [stderr] 298 |                 try!(self.read_up_to(need_to_read));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:320:21
[INFO] [stderr]     |
[INFO] [stderr] 320 |                     try!(self.read_up_to(need_to_read));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "1d24cd16598f8afb65ee6e3b7080b697c7ce2c4b47fb6397d065a713cae43866"`
[INFO] running `"docker" "rm" "-f" "1d24cd16598f8afb65ee6e3b7080b697c7ce2c4b47fb6397d065a713cae43866"`
[INFO] [stdout] 1d24cd16598f8afb65ee6e3b7080b697c7ce2c4b47fb6397d065a713cae43866
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6e52ea8adaa54ffd6f7bba2f5f625bb0fb438337dcc6c0a2f69e48c58c60d4da
[INFO] running `"docker" "start" "-a" "6e52ea8adaa54ffd6f7bba2f5f625bb0fb438337dcc6c0a2f69e48c58c60d4da"`
[INFO] [stderr]    Compiling acc_reader v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:236:24
[INFO] [stderr]     |
[INFO] [stderr] 236 |             let read = try!(self.source.read(buf));
[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:281:21
[INFO] [stderr]     |
[INFO] [stderr] 281 |                     try!(self.source.read_to_end(&mut self.buf));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:298:17
[INFO] [stderr]     |
[INFO] [stderr] 298 |                 try!(self.read_up_to(need_to_read));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:320:21
[INFO] [stderr]     |
[INFO] [stderr] 320 |                     try!(self.read_up_to(need_to_read));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "6e52ea8adaa54ffd6f7bba2f5f625bb0fb438337dcc6c0a2f69e48c58c60d4da"`
[INFO] running `"docker" "rm" "-f" "6e52ea8adaa54ffd6f7bba2f5f625bb0fb438337dcc6c0a2f69e48c58c60d4da"`
[INFO] [stdout] 6e52ea8adaa54ffd6f7bba2f5f625bb0fb438337dcc6c0a2f69e48c58c60d4da
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 6e4afc9565121d0d98211f388c6ae61eda11f3e1c15a007562d3a4ef8673c0cb
[INFO] running `"docker" "start" "-a" "6e4afc9565121d0d98211f388c6ae61eda11f3e1c15a007562d3a4ef8673c0cb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/acc_reader-475ece2b32cc0403
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_acc_reader_buf_read ... ok
[INFO] [stdout] test tests::test_acc_reader_read ... ok
[INFO] [stdout] test tests::test_acc_reader_seek ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests acc_reader
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - AccReader<R>::with_initial_capacity (line 109) ... ok
[INFO] [stdout] test src/lib.rs - AccReader<R>::into_inner (line 175) ... ok
[INFO] [stdout] test src/lib.rs - AccReader<R>::new (line 89) ... ok
[INFO] [stdout] test src/lib.rs - AccReader<R>::with_increment (line 129) ... ok
[INFO] [stdout] test src/lib.rs - AccReader (line 44) ... ok
[INFO] [stdout] test src/lib.rs - AccReader<R>::with_initial_capacity_and_increment (line 151) ... ok
[INFO] [stdout] test src/lib.rs - AccReader (line 61) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6e4afc9565121d0d98211f388c6ae61eda11f3e1c15a007562d3a4ef8673c0cb"`
[INFO] running `"docker" "rm" "-f" "6e4afc9565121d0d98211f388c6ae61eda11f3e1c15a007562d3a4ef8673c0cb"`
[INFO] [stdout] 6e4afc9565121d0d98211f388c6ae61eda11f3e1c15a007562d3a4ef8673c0cb