[INFO] fetching crate fallible_vec 0.3.1...
[INFO] checking fallible_vec-0.3.1 against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] extracting crate fallible_vec 0.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate fallible_vec 0.3.1
[INFO] finished tweaking crates.io crate fallible_vec 0.3.1
[INFO] tweaked toml for crates.io crate fallible_vec 0.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fallible_vec 0.3.1 on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to highest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a
[INFO] running `Command { std: "docker" "start" "f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a", 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" "f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a", 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" "f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking fallible_vec v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `allocator_api` has been partially stabilized since 1.100.0 and is succeeded by the feature `allocator_ext`
[INFO] [stdout]   --> src/lib.rs:50:48
[INFO] [stdout]    |
[INFO] [stdout] 50 | #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] help: if you are using features which are still unstable, change to using `allocator_ext`
[INFO] [stdout]    |
[INFO] [stdout] 50 - #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
[INFO] [stdout] 50 + #![cfg_attr(feature = "allocator_api", feature(allocator_ext))]
[INFO] [stdout]    |
[INFO] [stdout] help: if you are using features which are now stable, remove this line
[INFO] [stdout]    |
[INFO] [stdout] 50 - #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `allocator_api` has been partially stabilized since 1.100.0 and is succeeded by the feature `allocator_ext`
[INFO] [stdout]   --> src/lib.rs:50:48
[INFO] [stdout]    |
[INFO] [stdout] 50 | #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] help: if you are using features which are still unstable, change to using `allocator_ext`
[INFO] [stdout]    |
[INFO] [stdout] 50 - #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
[INFO] [stdout] 50 + #![cfg_attr(feature = "allocator_api", feature(allocator_ext))]
[INFO] [stdout]    |
[INFO] [stdout] help: if you are using features which are now stable, remove this line
[INFO] [stdout]    |
[INFO] [stdout] 50 - #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `A: AllocatorNightly` is not satisfied
[INFO] [stdout]    --> src/lib.rs:410:26
[INFO] [stdout]     |
[INFO] [stdout] 410 |                     self.drain(index..end);
[INFO] [stdout]     |                          ^^^^^ the nightly-only, unstable trait `AllocatorNightly` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Vec::<T, A>::drain`
[INFO] [stdout]    --> /rustc/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/library/alloc/src/vec/mod.rs:3043:4
[INFO] [stdout] help: consider restricting type parameter `A` with unstable trait `AllocatorNightly`
[INFO] [stdout]     |
[INFO] [stdout] 288 |         impl<T, A: std::alloc::AllocatorNightly Allocator> $trait<T> for Vec<T, A> $impl
[INFO] [stdout]     |                    ++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `A: AllocatorNightly` is not satisfied
[INFO] [stdout]    --> src/lib.rs:410:26
[INFO] [stdout]     |
[INFO] [stdout] 410 |                     self.drain(index..end);
[INFO] [stdout]     |                          ^^^^^ the nightly-only, unstable trait `AllocatorNightly` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Vec::<T, A>::drain`
[INFO] [stdout]    --> /rustc/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/library/alloc/src/vec/mod.rs:3043:4
[INFO] [stdout] help: consider restricting type parameter `A` with unstable trait `AllocatorNightly`
[INFO] [stdout]     |
[INFO] [stdout] 288 |         impl<T, A: core::alloc::AllocatorNightly Allocator> $trait<T> for Vec<T, A> $impl
[INFO] [stdout]     |                    +++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fallible_vec` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fallible_vec` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a", kill_on_drop: false }`
[INFO] [stdout] f52c26fa1480a91b974f390166ee0a13976b84c445c049eb102c345358f2aa0a
