[INFO] fetching crate conch-runtime-pshaw 0.1.6...
[INFO] testing conch-runtime-pshaw-0.1.6 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate conch-runtime-pshaw 0.1.6 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate conch-runtime-pshaw 0.1.6
[INFO] finished tweaking crates.io crate conch-runtime-pshaw 0.1.6
[INFO] tweaked toml for crates.io crate conch-runtime-pshaw 0.1.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate conch-runtime-pshaw 0.1.6 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate conch-runtime-pshaw 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-trait v0.1.51
[INFO] [stderr]   Downloaded delegate-attr v0.2.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.30
[INFO] [stderr]   Downloaded mio-uds v0.6.8
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.7
[INFO] [stderr]   Downloaded conch-parser v0.1.1
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] [stderr]   Downloaded libc v0.2.104
[INFO] [stderr]   Downloaded owned_chars v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7b4fe18153921361ca5483c41980e61d8cac0ab16351d43e57018265485b642
[INFO] running `Command { std: "docker" "start" "-a" "d7b4fe18153921361ca5483c41980e61d8cac0ab16351d43e57018265485b642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7b4fe18153921361ca5483c41980e61d8cac0ab16351d43e57018265485b642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b4fe18153921361ca5483c41980e61d8cac0ab16351d43e57018265485b642", kill_on_drop: false }`
[INFO] [stdout] d7b4fe18153921361ca5483c41980e61d8cac0ab16351d43e57018265485b642
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8611a2285f555bccbc08f330807a44abdf3bb535e7650c7a93e261efb27db229
[INFO] running `Command { std: "docker" "start" "-a" "8611a2285f555bccbc08f330807a44abdf3bb535e7650c7a93e261efb27db229", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling conch-parser v0.1.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling conch-runtime-pshaw v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/env/async_io/tokio.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |         #[cfg(not(linux))]
[INFO] [stdout]    |                   ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/env/async_io/tokio.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 |         #[cfg(linux)]
[INFO] [stdout]    |               ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `permissions` and `os_handle` are never read
[INFO] [stdout]   --> src/env/fd.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         struct FileDescDebug<T> {
[INFO] [stdout]    |                ------------- fields in this struct
[INFO] [stdout] 94 |             permissions: Permissions,
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 95 |             os_handle: T,
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileDescDebug` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `futures_core::Future` trait object that must be used
[INFO] [stdout]   --> src/spawn/swallow_non_fatal.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |             env.report_error(&e);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.65s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: conch-parser v0.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "8611a2285f555bccbc08f330807a44abdf3bb535e7650c7a93e261efb27db229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8611a2285f555bccbc08f330807a44abdf3bb535e7650c7a93e261efb27db229", kill_on_drop: false }`
[INFO] [stdout] 8611a2285f555bccbc08f330807a44abdf3bb535e7650c7a93e261efb27db229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07b68699a608576699e9544d931ea552778b3b4c2c49f64e0f9426a30dacfa4c
[INFO] running `Command { std: "docker" "start" "-a" "07b68699a608576699e9544d931ea552778b3b4c2c49f64e0f9426a30dacfa4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling delegate-attr v0.2.9
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/env/async_io/tokio.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |         #[cfg(not(linux))]
[INFO] [stdout]    |                   ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/env/async_io/tokio.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 |         #[cfg(linux)]
[INFO] [stdout]    |               ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `permissions` and `os_handle` are never read
[INFO] [stdout]   --> src/env/fd.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         struct FileDescDebug<T> {
[INFO] [stdout]    |                ------------- fields in this struct
[INFO] [stdout] 94 |             permissions: Permissions,
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 95 |             os_handle: T,
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileDescDebug` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `futures_core::Future` trait object that must be used
[INFO] [stdout]   --> src/spawn/swallow_non_fatal.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |             env.report_error(&e);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling owned_chars v0.3.2
[INFO] [stderr]    Compiling conch-runtime-pshaw v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `conch_runtime`
[INFO] [stdout]  --> examples/shell.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use conch_runtime::env::{DefaultEnvArc, DefaultEnvConfigArc};
[INFO] [stdout]   |     ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `conch_runtime`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `conch_runtime`, use `cargo add conch_runtime` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `conch_runtime`
[INFO] [stdout]  --> examples/shell.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use conch_runtime::spawn::sequence;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `conch_runtime`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `conch_runtime`, use `cargo add conch_runtime` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `conch_runtime`
[INFO] [stdout]  --> examples/shell.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use conch_runtime::{ExitStatus, EXIT_ERROR};
[INFO] [stdout]   |     ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `conch_runtime`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `conch_runtime`, use `cargo add conch_runtime` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/shell.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |             line.into_chars()
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `into_chars(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(string_into_chars)]` to the crate attributes to enable `String::into_chars`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(string_into_chars)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `conch-runtime-pshaw` (example "shell") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/env/async_io/tokio.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |         #[cfg(not(linux))]
[INFO] [stdout]    |                   ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/env/async_io/tokio.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 |         #[cfg(linux)]
[INFO] [stdout]    |               ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `permissions` and `os_handle` are never read
[INFO] [stdout]   --> src/env/fd.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |         struct FileDescDebug<T> {
[INFO] [stdout]    |                ------------- fields in this struct
[INFO] [stdout] 94 |             permissions: Permissions,
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 95 |             os_handle: T,
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileDescDebug` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `futures_core::Future` trait object that must be used
[INFO] [stdout]   --> src/spawn/swallow_non_fatal.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |             env.report_error(&e);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07b68699a608576699e9544d931ea552778b3b4c2c49f64e0f9426a30dacfa4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b68699a608576699e9544d931ea552778b3b4c2c49f64e0f9426a30dacfa4c", kill_on_drop: false }`
[INFO] [stdout] 07b68699a608576699e9544d931ea552778b3b4c2c49f64e0f9426a30dacfa4c
