[INFO] fetching crate mstak-util 0.1.18...
[INFO] testing mstak-util-0.1.18 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate mstak-util 0.1.18 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mstak-util 0.1.18
[INFO] finished tweaking crates.io crate mstak-util 0.1.18
[INFO] tweaked toml for crates.io crate mstak-util 0.1.18 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mstak-util 0.1.18 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 111edc1175532fbd3af42135fcb4ecc90be1e0b0ba07ae2f5a153129b74f620a
[INFO] running `Command { std: "docker" "start" "-a" "111edc1175532fbd3af42135fcb4ecc90be1e0b0ba07ae2f5a153129b74f620a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "111edc1175532fbd3af42135fcb4ecc90be1e0b0ba07ae2f5a153129b74f620a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "111edc1175532fbd3af42135fcb4ecc90be1e0b0ba07ae2f5a153129b74f620a", kill_on_drop: false }`
[INFO] [stdout] 111edc1175532fbd3af42135fcb4ecc90be1e0b0ba07ae2f5a153129b74f620a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb0c8e55217bad239a6f014c21e896a74553d8bc8caef63ad6b7f6029e74e1d2
[INFO] running `Command { std: "docker" "start" "-a" "fb0c8e55217bad239a6f014c21e896a74553d8bc8caef63ad6b7f6029e74e1d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling mstak-util v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "fb0c8e55217bad239a6f014c21e896a74553d8bc8caef63ad6b7f6029e74e1d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0c8e55217bad239a6f014c21e896a74553d8bc8caef63ad6b7f6029e74e1d2", kill_on_drop: false }`
[INFO] [stdout] fb0c8e55217bad239a6f014c21e896a74553d8bc8caef63ad6b7f6029e74e1d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4db0764c81a22d035930f5b4a4d6f7f84ce49563fb88f40de0f47ff0243e902
[INFO] running `Command { std: "docker" "start" "-a" "d4db0764c81a22d035930f5b4a4d6f7f84ce49563fb88f40de0f47ff0243e902", kill_on_drop: false }`
[INFO] [stderr]    Compiling mstak-util v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "d4db0764c81a22d035930f5b4a4d6f7f84ce49563fb88f40de0f47ff0243e902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4db0764c81a22d035930f5b4a4d6f7f84ce49563fb88f40de0f47ff0243e902", kill_on_drop: false }`
[INFO] [stdout] d4db0764c81a22d035930f5b4a4d6f7f84ce49563fb88f40de0f47ff0243e902
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92a7270ea5dd5b8f95894f03db6752847d1e8ad0dee8dc78c6a9826a2b5d364a
[INFO] running `Command { std: "docker" "start" "-a" "92a7270ea5dd5b8f95894f03db6752847d1e8ad0dee8dc78c6a9826a2b5d364a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mstak_util-f16c7bb325d1f3cc)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test heap::tests::new ... ok
[INFO] [stdout] test tests::file_size ... ok
[INFO] [stdout] test heap::tests::new_zero_sized ... ok
[INFO] [stdout] test mmap::tests::read_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mstak_util
[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" "92a7270ea5dd5b8f95894f03db6752847d1e8ad0dee8dc78c6a9826a2b5d364a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a7270ea5dd5b8f95894f03db6752847d1e8ad0dee8dc78c6a9826a2b5d364a", kill_on_drop: false }`
[INFO] [stdout] 92a7270ea5dd5b8f95894f03db6752847d1e8ad0dee8dc78c6a9826a2b5d364a