[INFO] fetching crate processortrace 0.0.3...
[INFO] testing processortrace-0.0.3 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate processortrace 0.0.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate processortrace 0.0.3 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate processortrace 0.0.3
[INFO] finished tweaking crates.io crate processortrace 0.0.3
[INFO] tweaked toml for crates.io crate processortrace 0.0.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f2a44d16db2a18cb4922f2c79d167f06a9359ceea187d8ebdcb821501528871
[INFO] running `Command { std: "docker" "start" "-a" "5f2a44d16db2a18cb4922f2c79d167f06a9359ceea187d8ebdcb821501528871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f2a44d16db2a18cb4922f2c79d167f06a9359ceea187d8ebdcb821501528871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2a44d16db2a18cb4922f2c79d167f06a9359ceea187d8ebdcb821501528871", kill_on_drop: false }`
[INFO] [stdout] 5f2a44d16db2a18cb4922f2c79d167f06a9359ceea187d8ebdcb821501528871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbcb57b9bf5f5a3e1221fe92b44405fa62c06a725e45e597438bdcfb55133bdc
[INFO] running `Command { std: "docker" "start" "-a" "cbcb57b9bf5f5a3e1221fe92b44405fa62c06a725e45e597438bdcfb55133bdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling x86 v0.32.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling rlibc v1.0.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling nix v0.22.0
[INFO] [stderr]    Compiling mmap v0.1.1
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling driverkit v0.3.0
[INFO] [stderr]    Compiling processortrace v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'assert_matches'
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         assert_matches!(self.state(), DriverState::Attached(_));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #82775 <https://github.com/rust-lang/rust/issues/82775> for more information
[INFO] [stdout]     = help: add `#![feature(assert_matches)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'assert_matches'
[INFO] [stdout]    --> src/lib.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         assert_matches!(self.state(), DriverState::Attached(_));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #82775 <https://github.com/rust-lang/rust/issues/82775> for more information
[INFO] [stdout]     = help: add `#![feature(assert_matches)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'assert_matches'
[INFO] [stdout]    --> src/lib.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |         assert_matches!(self.state(), DriverState::Attached(_));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #82775 <https://github.com/rust-lang/rust/issues/82775> for more information
[INFO] [stdout]     = help: add `#![feature(assert_matches)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use(assert_matches)]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `processortrace`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cbcb57b9bf5f5a3e1221fe92b44405fa62c06a725e45e597438bdcfb55133bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbcb57b9bf5f5a3e1221fe92b44405fa62c06a725e45e597438bdcfb55133bdc", kill_on_drop: false }`
[INFO] [stdout] cbcb57b9bf5f5a3e1221fe92b44405fa62c06a725e45e597438bdcfb55133bdc