[INFO] fetching crate io-at 0.4.1...
[INFO] testing io-at-0.4.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate io-at 0.4.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate io-at 0.4.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86903f1170dedbb546aba1288eb9db932c00141acdfa3cbdde48d524f92d5f13
[INFO] running `Command { std: "docker" "start" "-a" "86903f1170dedbb546aba1288eb9db932c00141acdfa3cbdde48d524f92d5f13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86903f1170dedbb546aba1288eb9db932c00141acdfa3cbdde48d524f92d5f13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86903f1170dedbb546aba1288eb9db932c00141acdfa3cbdde48d524f92d5f13", kill_on_drop: false }`
[INFO] [stdout] 86903f1170dedbb546aba1288eb9db932c00141acdfa3cbdde48d524f92d5f13
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca1d52db13a30405e1dad6d14351eeabf379a76397cf32ed2e7f43c73421b034
[INFO] running `Command { std: "docker" "start" "-a" "ca1d52db13a30405e1dad6d14351eeabf379a76397cf32ed2e7f43c73421b034", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.36s
[INFO] running `Command { std: "docker" "inspect" "ca1d52db13a30405e1dad6d14351eeabf379a76397cf32ed2e7f43c73421b034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca1d52db13a30405e1dad6d14351eeabf379a76397cf32ed2e7f43c73421b034", kill_on_drop: false }`
[INFO] [stdout] ca1d52db13a30405e1dad6d14351eeabf379a76397cf32ed2e7f43c73421b034
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03bbac6970b16f9cf72f00ad9cfdbfb2f340afa17198ed287d12ec4fce7f53aa
[INFO] running `Command { std: "docker" "start" "-a" "03bbac6970b16f9cf72f00ad9cfdbfb2f340afa17198ed287d12ec4fce7f53aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.3.23
[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 tempfile v2.2.0
[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 1.45s
[INFO] running `Command { std: "docker" "inspect" "03bbac6970b16f9cf72f00ad9cfdbfb2f340afa17198ed287d12ec4fce7f53aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03bbac6970b16f9cf72f00ad9cfdbfb2f340afa17198ed287d12ec4fce7f53aa", kill_on_drop: false }`
[INFO] [stdout] 03bbac6970b16f9cf72f00ad9cfdbfb2f340afa17198ed287d12ec4fce7f53aa
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4e20475eb2cba8082ac6442c4afcb81d2eb7951f61c403f6a4bad22a9b2ee046
[INFO] running `Command { std: "docker" "start" "-a" "4e20475eb2cba8082ac6442c4afcb81d2eb7951f61c403f6a4bad22a9b2ee046", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: `io-at` (lib) generated 2 warnings
[INFO] [stderr] warning: `io-at` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_at-ec2c1fb6197447e9)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test at_test_impl ... ok
[INFO] [stdout] test os::file::test::base ... ok
[INFO] [stdout] test do_t_locked_seek ... ok
[INFO] [stdout] test do_t_cursor ... ok
[INFO] [stdout] test do_t_block_limit ... ok
[INFO] [stdout] test slice::do_t ... ok
[INFO] [stdout] test os::file::test::ref_ ... ok
[INFO] [stdout] test take_test_impl ... ok
[INFO] [stdout] test vec::do_t ... ok
[INFO] [stdout] test vec::ref_vec ... ok
[INFO] [stdout] test take_test_specifics ... ok
[INFO] [stdout] test os::raw::do_t ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/custom_ref.rs (/opt/rustwide/target/debug/deps/custom_ref-64e56357ff41d7d9)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io-at
[INFO] [stdout] running 1 test
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4e20475eb2cba8082ac6442c4afcb81d2eb7951f61c403f6a4bad22a9b2ee046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e20475eb2cba8082ac6442c4afcb81d2eb7951f61c403f6a4bad22a9b2ee046", kill_on_drop: false }`
[INFO] [stdout] 4e20475eb2cba8082ac6442c4afcb81d2eb7951f61c403f6a4bad22a9b2ee046