[INFO] fetching crate io-at 0.4.1...
[INFO] testing io-at-0.4.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate io-at 0.4.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate io-at 0.4.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-at 0.4.1
[INFO] finished tweaking crates.io crate io-at 0.4.1
[INFO] tweaked toml for crates.io crate io-at 0.4.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d40049db1aa7350773b58232af2afe5f5d67eaaf5d7ac2e98419db2d1bb4be2
[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" "2d40049db1aa7350773b58232af2afe5f5d67eaaf5d7ac2e98419db2d1bb4be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d40049db1aa7350773b58232af2afe5f5d67eaaf5d7ac2e98419db2d1bb4be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d40049db1aa7350773b58232af2afe5f5d67eaaf5d7ac2e98419db2d1bb4be2", kill_on_drop: false }`
[INFO] [stdout] 2d40049db1aa7350773b58232af2afe5f5d67eaaf5d7ac2e98419db2d1bb4be2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe755bf40438a60f12c0c875dda49288de40e2bbde61b3559d4f69cdfcf20188
[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" "fe755bf40438a60f12c0c875dda49288de40e2bbde61b3559d4f69cdfcf20188", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-at v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "fe755bf40438a60f12c0c875dda49288de40e2bbde61b3559d4f69cdfcf20188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe755bf40438a60f12c0c875dda49288de40e2bbde61b3559d4f69cdfcf20188", kill_on_drop: false }`
[INFO] [stdout] fe755bf40438a60f12c0c875dda49288de40e2bbde61b3559d4f69cdfcf20188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b20bfb5be919a3ea791830b82d01249432280f69d2832c48de7af4d9f8abe05
[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" "6b20bfb5be919a3ea791830b82d01249432280f69d2832c48de7af4d9f8abe05", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling io-at v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "6b20bfb5be919a3ea791830b82d01249432280f69d2832c48de7af4d9f8abe05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b20bfb5be919a3ea791830b82d01249432280f69d2832c48de7af4d9f8abe05", kill_on_drop: false }`
[INFO] [stdout] 6b20bfb5be919a3ea791830b82d01249432280f69d2832c48de7af4d9f8abe05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1060e6334eac828e0f01dd29173d32c0ae8bb8bb6d63d11ef7474b0325fa1ceb
[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" "1060e6334eac828e0f01dd29173d32c0ae8bb8bb6d63d11ef7474b0325fa1ceb", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:269:9
[INFO] [stdout] running 12 tests
[INFO] [stderr]     |
[INFO] [stdout] test vec::do_t ... ok
[INFO] [stderr] 269 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout] test do_t_cursor ... ok
[INFO] [stderr]     |         ^^^
[INFO] [stdout] test do_t_locked_seek ... ok
[INFO] [stderr]     |
[INFO] [stdout] test take_test_impl ... ok
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] test vec::ref_vec ... ok
[INFO] [stderr] 
[INFO] [stdout] test os::raw::do_t ... ok
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] test os::file::test::ref_ ... ok
[INFO] [stderr]    --> src/lib.rs:277:9
[INFO] [stdout] test slice::do_t ... ok
[INFO] [stderr]     |
[INFO] [stdout] test take_test_specifics ... ok
[INFO] [stderr] 277 |         try!(f.seek(SeekFrom::Start(offs)));
[INFO] [stdout] test at_test_impl ... ok
[INFO] [stderr]     |         ^^^
[INFO] [stdout] test do_t_block_limit ... ok
[INFO] [stderr] 
[INFO] [stdout] test os::file::test::base ... ok
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/io_at-1ccc62dafb2f7524
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/custom_ref-936d8dd19005b1bd
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests io-at
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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 `Command { std: "docker" "inspect" "1060e6334eac828e0f01dd29173d32c0ae8bb8bb6d63d11ef7474b0325fa1ceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1060e6334eac828e0f01dd29173d32c0ae8bb8bb6d63d11ef7474b0325fa1ceb", kill_on_drop: false }`
[INFO] [stdout] 1060e6334eac828e0f01dd29173d32c0ae8bb8bb6d63d11ef7474b0325fa1ceb
