[INFO] fetching crate unsafe_unwrap 0.1.0...
[INFO] testing unsafe_unwrap-0.1.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate unsafe_unwrap 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate unsafe_unwrap 0.1.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unsafe_unwrap 0.1.0
[INFO] finished tweaking crates.io crate unsafe_unwrap 0.1.0
[INFO] tweaked toml for crates.io crate unsafe_unwrap 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92278d18cbc9b6b4493563800c7631dd8b1366fb2a07ea5d15b963cece3b0803
[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" "92278d18cbc9b6b4493563800c7631dd8b1366fb2a07ea5d15b963cece3b0803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92278d18cbc9b6b4493563800c7631dd8b1366fb2a07ea5d15b963cece3b0803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92278d18cbc9b6b4493563800c7631dd8b1366fb2a07ea5d15b963cece3b0803", kill_on_drop: false }`
[INFO] [stdout] 92278d18cbc9b6b4493563800c7631dd8b1366fb2a07ea5d15b963cece3b0803
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e23cfe44624a4a16cc0f109547eb59107eb61d4a38ec0060a4fbab2c1c11c819
[INFO] running `Command { std: "docker" "start" "-a" "e23cfe44624a4a16cc0f109547eb59107eb61d4a38ec0060a4fbab2c1c11c819", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe_unwrap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stdout]    |         ^^^^^^-------------------------------------^^^
[INFO] [stdout]    |         |     |
[INFO] [stdout]    |         |     any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `Impossible`, which is uninhabited
[INFO] [stdout]   --> src/lib.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "e23cfe44624a4a16cc0f109547eb59107eb61d4a38ec0060a4fbab2c1c11c819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23cfe44624a4a16cc0f109547eb59107eb61d4a38ec0060a4fbab2c1c11c819", kill_on_drop: false }`
[INFO] [stdout] e23cfe44624a4a16cc0f109547eb59107eb61d4a38ec0060a4fbab2c1c11c819
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8616219fdf2f9fbda0a2bc5f0266aa70ab9133bdb674ccff56975bdff1892b2b
[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" "8616219fdf2f9fbda0a2bc5f0266aa70ab9133bdb674ccff56975bdff1892b2b", kill_on_drop: false }`
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stdout]    |         ^^^^^^-------------------------------------^^^
[INFO] [stdout]    |         |     |
[INFO] [stdout]    |         |     any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `Impossible`, which is uninhabited
[INFO] [stdout]   --> src/lib.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unsafe_unwrap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/lib.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stdout]    |         ^^^^^^-------------------------------------^^^
[INFO] [stdout]    |         |     |
[INFO] [stdout]    |         |     any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `Impossible`, which is uninhabited
[INFO] [stdout]   --> src/lib.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "8616219fdf2f9fbda0a2bc5f0266aa70ab9133bdb674ccff56975bdff1892b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8616219fdf2f9fbda0a2bc5f0266aa70ab9133bdb674ccff56975bdff1892b2b", kill_on_drop: false }`
[INFO] [stdout] 8616219fdf2f9fbda0a2bc5f0266aa70ab9133bdb674ccff56975bdff1892b2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9536dbd8482a5ea279a75e94517ff4d1af4bafb04146999a61fa68680c5509b7
[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" "9536dbd8482a5ea279a75e94517ff4d1af4bafb04146999a61fa68680c5509b7", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/lib.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stderr]    |         ^^^^^^-------------------------------------^^^
[INFO] [stderr]    |         |     |
[INFO] [stderr]    |         |     any code following this expression is unreachable
[INFO] [stderr]    |         unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] note: this expression has type `Impossible`, which is uninhabited
[INFO] [stderr]   --> src/lib.rs:47:15
[INFO] [stderr]    |
[INFO] [stderr] 47 |         match transmute::<_, Impossible>(ZeroSized) {}
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `unsafe_unwrap` (lib) generated 1 warning
[INFO] [stderr] warning: `unsafe_unwrap` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unsafe_unwrap-4e28010e99d94a96)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test benches::bench_normal_unwrap_1000 ... ok
[INFO] [stdout] test tests::option_unwrap_success ... ok
[INFO] [stdout] test benches::bench_unsafe_unwrap_1000 ... ok
[INFO] [stdout] test tests::result_unwrap_success ... ok
[INFO] [stderr]    Doc-tests unsafe_unwrap
[INFO] [stdout] test tests::option_unwrap_failure - should panic ... ok
[INFO] [stdout] test tests::result_unwrap_failure - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9536dbd8482a5ea279a75e94517ff4d1af4bafb04146999a61fa68680c5509b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9536dbd8482a5ea279a75e94517ff4d1af4bafb04146999a61fa68680c5509b7", kill_on_drop: false }`
[INFO] [stdout] 9536dbd8482a5ea279a75e94517ff4d1af4bafb04146999a61fa68680c5509b7