[INFO] crate gzip-header 0.3.0 is already in cache
[INFO] testing gzip-header-0.3.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate gzip-header 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gzip-header 0.3.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gzip-header 0.3.0
[INFO] finished tweaking crates.io crate gzip-header 0.3.0
[INFO] tweaked toml for crates.io crate gzip-header 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 375353319c94e55cab64a03ede3f05fae17cc4d8f12b2644f3f0dcded8896670
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "375353319c94e55cab64a03ede3f05fae17cc4d8f12b2644f3f0dcded8896670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "375353319c94e55cab64a03ede3f05fae17cc4d8f12b2644f3f0dcded8896670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375353319c94e55cab64a03ede3f05fae17cc4d8f12b2644f3f0dcded8896670", kill_on_drop: false }`
[INFO] [stdout] 375353319c94e55cab64a03ede3f05fae17cc4d8f12b2644f3f0dcded8896670
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f577f01037abdfc8d7d5f9c373163b6f9fb6ae784937d85b25ca3e1c9c6c8d19
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f577f01037abdfc8d7d5f9c373163b6f9fb6ae784937d85b25ca3e1c9c6c8d19", kill_on_drop: false }`
[INFO] [stderr]    Compiling gzip-header v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/crc_reader.rs:106:19
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let amt = try!(self.inner.read(into));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:474:5
[INFO] [stdout]     |
[INFO] [stdout] 474 |     try!(r.read_exact(&mut b));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:489:5
[INFO] [stdout]     |
[INFO] [stdout] 489 |     try!(crc_reader.read_exact(&mut header));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:517:20
[INFO] [stdout]     |
[INFO] [stdout] 517 |         let xlen = try!(read_le_u16(&mut crc_reader));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:519:9
[INFO] [stdout]     |
[INFO] [stdout] 519 |         try!(crc_reader.read_exact(&mut extra));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:528:24
[INFO] [stdout]     |
[INFO] [stdout] 528 |             let byte = try!(byte);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:542:24
[INFO] [stdout]     |
[INFO] [stdout] 542 |             let byte = try!(byte);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:557:26
[INFO] [stdout]     |
[INFO] [stdout] 557 |         let stored_crc = try!(read_le_u16(&mut crc_reader));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f577f01037abdfc8d7d5f9c373163b6f9fb6ae784937d85b25ca3e1c9c6c8d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f577f01037abdfc8d7d5f9c373163b6f9fb6ae784937d85b25ca3e1c9c6c8d19", kill_on_drop: false }`
[INFO] [stdout] f577f01037abdfc8d7d5f9c373163b6f9fb6ae784937d85b25ca3e1c9c6c8d19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1987d37a6384d22462413c83b6efa66de7a3a192a736f5c8bc8c999cab3054a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e1987d37a6384d22462413c83b6efa66de7a3a192a736f5c8bc8c999cab3054a", kill_on_drop: false }`
[INFO] [stderr]    Compiling gzip-header v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/crc_reader.rs:106:19
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let amt = try!(self.inner.read(into));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:474:5
[INFO] [stdout]     |
[INFO] [stdout] 474 |     try!(r.read_exact(&mut b));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:489:5
[INFO] [stdout]     |
[INFO] [stdout] 489 |     try!(crc_reader.read_exact(&mut header));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:517:20
[INFO] [stdout]     |
[INFO] [stdout] 517 |         let xlen = try!(read_le_u16(&mut crc_reader));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:519:9
[INFO] [stdout]     |
[INFO] [stdout] 519 |         try!(crc_reader.read_exact(&mut extra));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:528:24
[INFO] [stdout]     |
[INFO] [stdout] 528 |             let byte = try!(byte);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:542:24
[INFO] [stdout]     |
[INFO] [stdout] 542 |             let byte = try!(byte);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:557:26
[INFO] [stdout]     |
[INFO] [stdout] 557 |         let stored_crc = try!(read_le_u16(&mut crc_reader));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/crc_reader.rs:106:19
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let amt = try!(self.inner.read(into));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:474:5
[INFO] [stdout]     |
[INFO] [stdout] 474 |     try!(r.read_exact(&mut b));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:489:5
[INFO] [stdout]     |
[INFO] [stdout] 489 |     try!(crc_reader.read_exact(&mut header));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:517:20
[INFO] [stdout]     |
[INFO] [stdout] 517 |         let xlen = try!(read_le_u16(&mut crc_reader));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:519:9
[INFO] [stdout]     |
[INFO] [stdout] 519 |         try!(crc_reader.read_exact(&mut extra));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:528:24
[INFO] [stdout]     |
[INFO] [stdout] 528 |             let byte = try!(byte);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:542:24
[INFO] [stdout]     |
[INFO] [stdout] 542 |             let byte = try!(byte);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:557:26
[INFO] [stdout]     |
[INFO] [stdout] 557 |         let stored_crc = try!(read_le_u16(&mut crc_reader));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "e1987d37a6384d22462413c83b6efa66de7a3a192a736f5c8bc8c999cab3054a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1987d37a6384d22462413c83b6efa66de7a3a192a736f5c8bc8c999cab3054a", kill_on_drop: false }`
[INFO] [stdout] e1987d37a6384d22462413c83b6efa66de7a3a192a736f5c8bc8c999cab3054a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 93fff14a2c913fbc13c14a8309b07685e4724b85608963a1e0979a2b46c977f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "93fff14a2c913fbc13c14a8309b07685e4724b85608963a1e0979a2b46c977f2", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/crc_reader.rs:106:19
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let amt = try!(self.inner.read(into));
[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:474:5
[INFO] [stderr]     |
[INFO] [stderr] 474 |     try!(r.read_exact(&mut b));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:489:5
[INFO] [stderr]     |
[INFO] [stderr] 489 |     try!(crc_reader.read_exact(&mut header));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:517:20
[INFO] [stderr]     |
[INFO] [stderr] 517 |         let xlen = try!(read_le_u16(&mut crc_reader));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:519:9
[INFO] [stderr]     |
[INFO] [stderr] 519 |         try!(crc_reader.read_exact(&mut extra));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:528:24
[INFO] [stderr]     |
[INFO] [stderr] 528 |             let byte = try!(byte);
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:542:24
[INFO] [stderr]     |
[INFO] [stderr] 542 |             let byte = try!(byte);
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:557:26
[INFO] [stderr]     |
[INFO] [stderr] 557 |         let stored_crc = try!(read_le_u16(&mut crc_reader));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/crc_reader.rs:106:19
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let amt = try!(self.inner.read(into));
[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:474:5
[INFO] [stderr]     |
[INFO] [stderr] 474 |     try!(r.read_exact(&mut b));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:489:5
[INFO] [stderr]     |
[INFO] [stderr] 489 |     try!(crc_reader.read_exact(&mut header));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:517:20
[INFO] [stderr]     |
[INFO] [stderr] 517 |         let xlen = try!(read_le_u16(&mut crc_reader));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:519:9
[INFO] [stderr]     |
[INFO] [stderr] 519 |         try!(crc_reader.read_exact(&mut extra));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:528:24
[INFO] [stderr]     |
[INFO] [stderr] 528 |             let byte = try!(byte);
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:542:24
[INFO] [stderr]     |
[INFO] [stderr] 542 |             let byte = try!(byte);
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:557:26
[INFO] [stderr]     |
[INFO] [stderr] 557 |         let stored_crc = try!(read_le_u16(&mut crc_reader));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gzip_header-1a866f2ed2153bf6
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::roundtrip ... ok
[INFO] [stdout] test tests::roundtrip_with_crc ... ok
[INFO] [stdout] test crc_reader::test::checksum_correct ... ok
[INFO] [stdout] test tests::filesystem_enum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gzip-header
[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 `Command { std: "docker" "inspect" "93fff14a2c913fbc13c14a8309b07685e4724b85608963a1e0979a2b46c977f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93fff14a2c913fbc13c14a8309b07685e4724b85608963a1e0979a2b46c977f2", kill_on_drop: false }`
[INFO] [stdout] 93fff14a2c913fbc13c14a8309b07685e4724b85608963a1e0979a2b46c977f2