[INFO] fetching crate io_utils 0.3.1...
[INFO] testing io_utils-0.3.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate io_utils 0.3.1 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate io_utils 0.3.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io_utils 0.3.1
[INFO] finished tweaking crates.io crate io_utils 0.3.1
[INFO] tweaked toml for crates.io crate io_utils 0.3.1 written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be68d1acc6ede4521fcc1540a3a5f5257972e05eb23984780e5b95940f57dd05
[INFO] running `Command { std: "docker" "start" "-a" "be68d1acc6ede4521fcc1540a3a5f5257972e05eb23984780e5b95940f57dd05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be68d1acc6ede4521fcc1540a3a5f5257972e05eb23984780e5b95940f57dd05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be68d1acc6ede4521fcc1540a3a5f5257972e05eb23984780e5b95940f57dd05", kill_on_drop: false }`
[INFO] [stdout] be68d1acc6ede4521fcc1540a3a5f5257972e05eb23984780e5b95940f57dd05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af7eb38731832240e41dd6d8c0b9c9d0e66eb27a8d5d88c3d99ea67279c13ddb
[INFO] running `Command { std: "docker" "start" "-a" "af7eb38731832240e41dd6d8c0b9c9d0e66eb27a8d5d88c3d99ea67279c13ddb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling permutation v0.2.5
[INFO] [stderr]    Compiling vector_utils v0.1.3
[INFO] [stderr]    Compiling string_utils v0.1.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling lz4 v1.23.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling io_utils v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.51s
[INFO] running `Command { std: "docker" "inspect" "af7eb38731832240e41dd6d8c0b9c9d0e66eb27a8d5d88c3d99ea67279c13ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7eb38731832240e41dd6d8c0b9c9d0e66eb27a8d5d88c3d99ea67279c13ddb", kill_on_drop: false }`
[INFO] [stdout] af7eb38731832240e41dd6d8c0b9c9d0e66eb27a8d5d88c3d99ea67279c13ddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ca1f90a0423fb267fd97a90c3f96887ab5867749a4f94016497e7a92f4a494d
[INFO] running `Command { std: "docker" "start" "-a" "6ca1f90a0423fb267fd97a90c3f96887ab5867749a4f94016497e7a92f4a494d", kill_on_drop: false }`
[INFO] [stderr]    Compiling io_utils v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "6ca1f90a0423fb267fd97a90c3f96887ab5867749a4f94016497e7a92f4a494d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ca1f90a0423fb267fd97a90c3f96887ab5867749a4f94016497e7a92f4a494d", kill_on_drop: false }`
[INFO] [stdout] 6ca1f90a0423fb267fd97a90c3f96887ab5867749a4f94016497e7a92f4a494d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6037acac991cf933e2d451f62420d4f6e4091c781241aa7da26d89335eb31c17
[INFO] running `Command { std: "docker" "start" "-a" "6037acac991cf933e2d451f62420d4f6e4091c781241aa7da26d89335eb31c17", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_utils-5d935becd75a84e7)
[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] [stderr]    Doc-tests io_utils
[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" "6037acac991cf933e2d451f62420d4f6e4091c781241aa7da26d89335eb31c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6037acac991cf933e2d451f62420d4f6e4091c781241aa7da26d89335eb31c17", kill_on_drop: false }`
[INFO] [stdout] 6037acac991cf933e2d451f62420d4f6e4091c781241aa7da26d89335eb31c17