[INFO] fetching crate armor 1.2.0...
[INFO] checking armor-1.2.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate armor 1.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate armor 1.2.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate armor 1.2.0
[INFO] finished tweaking crates.io crate armor 1.2.0
[INFO] tweaked toml for crates.io crate armor 1.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate armor 1.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c230bf5cc215b4da8e427eca04fa4504efadb1cdbf04b2dc0085943ee9711ccf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c230bf5cc215b4da8e427eca04fa4504efadb1cdbf04b2dc0085943ee9711ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c230bf5cc215b4da8e427eca04fa4504efadb1cdbf04b2dc0085943ee9711ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c230bf5cc215b4da8e427eca04fa4504efadb1cdbf04b2dc0085943ee9711ccf", kill_on_drop: false }`
[INFO] [stdout] c230bf5cc215b4da8e427eca04fa4504efadb1cdbf04b2dc0085943ee9711ccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b4a7f5941544a00a286f48a439b10aee709d6521fa61a4fb65f0ae0579e4598
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b4a7f5941544a00a286f48a439b10aee709d6521fa61a4fb65f0ae0579e4598", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling ryu v1.0.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking armor v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: deny(rust_2018_idioms) incompatible with previous forbid
[INFO] [stdout]   --> src/lib.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![forbid(unsafe_code, future_incompatible)]
[INFO] [stdout]    |                        ------------------- `forbid` level set here
[INFO] [stdout] 14 | #![deny(missing_debug_implementations, nonstandard_style, rust_2018_idioms)]
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forbidden_lint_groups)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #81670 <https://github.com/rust-lang/rust/issues/81670>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deny(rust_2018_idioms) incompatible with previous forbid
[INFO] [stdout]   --> src/lib.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![forbid(unsafe_code, future_incompatible)]
[INFO] [stdout]    |                        ------------------- `forbid` level set here
[INFO] [stdout] 14 | #![deny(missing_debug_implementations, nonstandard_style, rust_2018_idioms)]
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #81670 <https://github.com/rust-lang/rust/issues/81670>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deny(rust_2018_idioms) incompatible with previous forbid
[INFO] [stdout]   --> src/lib.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![forbid(unsafe_code, future_incompatible)]
[INFO] [stdout]    |                        ------------------- `forbid` level set here
[INFO] [stdout] 14 | #![deny(missing_debug_implementations, nonstandard_style, rust_2018_idioms)]
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forbidden_lint_groups)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #81670 <https://github.com/rust-lang/rust/issues/81670>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deny(rust_2018_idioms) incompatible with previous forbid
[INFO] [stdout]   --> src/lib.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![forbid(unsafe_code, future_incompatible)]
[INFO] [stdout]    |                        ------------------- `forbid` level set here
[INFO] [stdout] 14 | #![deny(missing_debug_implementations, nonstandard_style, rust_2018_idioms)]
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^ overruled by previous forbid
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #81670 <https://github.com/rust-lang/rust/issues/81670>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.40s
[INFO] running `Command { std: "docker" "inspect" "2b4a7f5941544a00a286f48a439b10aee709d6521fa61a4fb65f0ae0579e4598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4a7f5941544a00a286f48a439b10aee709d6521fa61a4fb65f0ae0579e4598", kill_on_drop: false }`
[INFO] [stdout] 2b4a7f5941544a00a286f48a439b10aee709d6521fa61a4fb65f0ae0579e4598