[INFO] fetching crate context 3.0.0...
[INFO] checking context-3.0.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate context 3.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate context 3.0.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate context 3.0.0
[INFO] finished tweaking crates.io crate context 3.0.0
[INFO] tweaked toml for crates.io crate context 3.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate context 3.0.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 557ba217a0a4ac9ca1f9016075fba0f70dbe6d975a80937f599bce74e6aad1e7
[INFO] running `Command { std: "docker" "start" "-a" "557ba217a0a4ac9ca1f9016075fba0f70dbe6d975a80937f599bce74e6aad1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "557ba217a0a4ac9ca1f9016075fba0f70dbe6d975a80937f599bce74e6aad1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557ba217a0a4ac9ca1f9016075fba0f70dbe6d975a80937f599bce74e6aad1e7", kill_on_drop: false }`
[INFO] [stdout] 557ba217a0a4ac9ca1f9016075fba0f70dbe6d975a80937f599bce74e6aad1e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a52a9e1b1571aa3e13e7b87595bef2052277e9bd9cc437925de0c410cecaa71
[INFO] running `Command { std: "docker" "start" "-a" "3a52a9e1b1571aa3e13e7b87595bef2052277e9bd9cc437925de0c410cecaa71", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling context v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use libc;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `c_void` is imported redundantly
[INFO] [stdout]    --> src/context.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |     use super::*;
[INFO] [stdout]     |         -------- the item `c_void` is already imported here
[INFO] [stdout] 154 |     use c_void;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sys` is imported redundantly
[INFO] [stdout]    --> src/stack.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |     use super::*;
[INFO] [stdout]     |         -------- the item `sys` is already imported here
[INFO] [stdout] 252 |     use sys;
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/sys/unix/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use libc;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate libc;
[INFO] [stdout]    | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `rlimit` does not permit being left uninitialized
[INFO] [stdout]    --> src/sys/unix/mod.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |             limit = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `rlimit` does not permit being left uninitialized
[INFO] [stdout]    --> src/sys/unix/mod.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |             limit = mem::MaybeUninit::uninit().assume_init();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this code causes undefined behavior when executed
[INFO] [stdout]     |                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "3a52a9e1b1571aa3e13e7b87595bef2052277e9bd9cc437925de0c410cecaa71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a52a9e1b1571aa3e13e7b87595bef2052277e9bd9cc437925de0c410cecaa71", kill_on_drop: false }`
[INFO] [stdout] 3a52a9e1b1571aa3e13e7b87595bef2052277e9bd9cc437925de0c410cecaa71