[INFO] fetching crate unshare 0.7.0...
[INFO] checking unshare-0.7.0 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] extracting crate unshare 0.7.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate unshare 0.7.0
[INFO] finished tweaking crates.io crate unshare 0.7.0
[INFO] tweaked toml for crates.io crate unshare 0.7.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unshare 0.7.0 on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unshare 0.7.0 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `unshare` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.6.2
[INFO] [stderr]   Downloaded argparse v0.2.2
[INFO] [stderr]   Downloaded nix v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087
[INFO] running `Command { std: "docker" "start" "20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `unshare` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking unshare v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/error.rs:93:28
[INFO] [stdout]    |
[INFO] [stdout] 93 |     BeforeUnfreeze(Box<dyn (::std::error::Error) + Send + Sync + 'static>),
[INFO] [stdout]    |                            ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 93 -     BeforeUnfreeze(Box<dyn (::std::error::Error) + Send + Sync + 'static>),
[INFO] [stdout] 93 +     BeforeUnfreeze(Box<dyn ::std::error::Error + Send + Sync + 'static>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/child.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 |     extern {
[INFO] [stdout]     |     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:25
[INFO] [stdout]    |
[INFO] [stdout] 75 | type BoxError = Box<dyn (::std::error::Error) + Send + Sync + 'static>;
[INFO] [stdout]    |                         ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 - type BoxError = Box<dyn (::std::error::Error) + Send + Sync + 'static>;
[INFO] [stdout] 75 + type BoxError = Box<dyn ::std::error::Error + Send + Sync + 'static>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/error.rs:93:28
[INFO] [stdout]    |
[INFO] [stdout] 93 |     BeforeUnfreeze(Box<dyn (::std::error::Error) + Send + Sync + 'static>),
[INFO] [stdout]    |                            ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 93 -     BeforeUnfreeze(Box<dyn (::std::error::Error) + Send + Sync + 'static>),
[INFO] [stdout] 93 +     BeforeUnfreeze(Box<dyn ::std::error::Error + Send + Sync + 'static>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/child.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 |     extern {
[INFO] [stdout]     |     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:75:25
[INFO] [stdout]    |
[INFO] [stdout] 75 | type BoxError = Box<dyn (::std::error::Error) + Send + Sync + 'static>;
[INFO] [stdout]    |                         ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 - type BoxError = Box<dyn (::std::error::Error) + Send + Sync + 'static>;
[INFO] [stdout] 75 + type BoxError = Box<dyn ::std::error::Error + Send + Sync + 'static>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fd_lookup` is never read
[INFO] [stdout]   --> src/run.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ChildInfo<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fd_lookup: &'a HashMap<RawFd, RawFd>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fd_lookup` is never read
[INFO] [stdout]   --> src/run.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ChildInfo<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fd_lookup: &'a HashMap<RawFd, RawFd>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.46s
[INFO] running `Command { std: "docker" "inspect" "20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087", kill_on_drop: false }`
[INFO] [stdout] 20610db4fa1aeeaf8966769319ce958a2dd86869cef0aa6b99f16e1f0219c087
