[INFO] fetching crate nstd_env 0.1.0...
[INFO] testing nstd_env-0.1.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate nstd_env 0.1.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate nstd_env 0.1.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nstd_env 0.1.0
[INFO] finished tweaking crates.io crate nstd_env 0.1.0
[INFO] tweaked toml for crates.io crate nstd_env 0.1.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ce7b88681c8724adb78a457a167027149d985ef85701f97ff59e6b0898c0648
[INFO] running `Command { std: "docker" "start" "-a" "2ce7b88681c8724adb78a457a167027149d985ef85701f97ff59e6b0898c0648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ce7b88681c8724adb78a457a167027149d985ef85701f97ff59e6b0898c0648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce7b88681c8724adb78a457a167027149d985ef85701f97ff59e6b0898c0648", kill_on_drop: false }`
[INFO] [stdout] 2ce7b88681c8724adb78a457a167027149d985ef85701f97ff59e6b0898c0648
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf64abe29def02b26a3bdd9e8954b77b9c35fbd453d6bc23756ddf0b86659edf
[INFO] running `Command { std: "docker" "start" "-a" "bf64abe29def02b26a3bdd9e8954b77b9c35fbd453d6bc23756ddf0b86659edf", kill_on_drop: false }`
[INFO] [stderr]    Compiling nstd_alloc v0.1.0
[INFO] [stderr]    Compiling nstd_collections v0.1.1
[INFO] [stderr]    Compiling nstd_env v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             CString::from_raw(*cstrptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "bf64abe29def02b26a3bdd9e8954b77b9c35fbd453d6bc23756ddf0b86659edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf64abe29def02b26a3bdd9e8954b77b9c35fbd453d6bc23756ddf0b86659edf", kill_on_drop: false }`
[INFO] [stdout] bf64abe29def02b26a3bdd9e8954b77b9c35fbd453d6bc23756ddf0b86659edf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 467f89326ba03dc2946079910ba35be7e904ac03868e3a89d24fa7d1ab45ccbf
[INFO] running `Command { std: "docker" "start" "-a" "467f89326ba03dc2946079910ba35be7e904ac03868e3a89d24fa7d1ab45ccbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling nstd_env v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             CString::from_raw(*cstrptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             CString::from_raw(*cstrptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "467f89326ba03dc2946079910ba35be7e904ac03868e3a89d24fa7d1ab45ccbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "467f89326ba03dc2946079910ba35be7e904ac03868e3a89d24fa7d1ab45ccbf", kill_on_drop: false }`
[INFO] [stdout] 467f89326ba03dc2946079910ba35be7e904ac03868e3a89d24fa7d1ab45ccbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca19b647a8d303aacef95d5292051d8ec825e1c26475e63ac28b345b6d41ac1b
[INFO] running `Command { std: "docker" "start" "-a" "ca19b647a8d303aacef95d5292051d8ec825e1c26475e63ac28b345b6d41ac1b", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stderr]    --> src/lib.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             CString::from_raw(*cstrptr);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stderr] 
[INFO] [stderr] warning: `nstd_env` (lib) generated 1 warning
[INFO] [stderr] warning: `nstd_env` (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/nstd_env-0f1998cb004a4e1f)
[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 nstd_env
[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" "ca19b647a8d303aacef95d5292051d8ec825e1c26475e63ac28b345b6d41ac1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca19b647a8d303aacef95d5292051d8ec825e1c26475e63ac28b345b6d41ac1b", kill_on_drop: false }`
[INFO] [stdout] ca19b647a8d303aacef95d5292051d8ec825e1c26475e63ac28b345b6d41ac1b