[INFO] cloning repository https://github.com/mmrath/ara
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmrath/ara" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmrath%2Fara", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmrath%2Fara'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f62eeac56a8ae3885a243e22314e6aae1fffdbc7
[INFO] checking mmrath/ara against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmrath%2Fara" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmrath/ara on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmrath/ara
[INFO] finished tweaking git repo https://github.com/mmrath/ara
[INFO] tweaked toml for git repo https://github.com/mmrath/ara written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mmrath/ara already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0328009d3bb0bf997ed90e2f735305a7fe942020ba0b5a5b18c582ea7fe35098
[INFO] running `Command { std: "docker" "start" "-a" "0328009d3bb0bf997ed90e2f735305a7fe942020ba0b5a5b18c582ea7fe35098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0328009d3bb0bf997ed90e2f735305a7fe942020ba0b5a5b18c582ea7fe35098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0328009d3bb0bf997ed90e2f735305a7fe942020ba0b5a5b18c582ea7fe35098", kill_on_drop: false }`
[INFO] [stdout] 0328009d3bb0bf997ed90e2f735305a7fe942020ba0b5a5b18c582ea7fe35098
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30b3d812e5845a7c30672dfb721b87b176284e0015ba9f2f7e0d3684d0a2d662
[INFO] running `Command { std: "docker" "start" "-a" "30b3d812e5845a7c30672dfb721b87b176284e0015ba9f2f7e0d3684d0a2d662", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling safemem v0.3.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling bindgen v0.48.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling if_chain v0.1.3
[INFO] [stderr]     Checking futures v0.1.26
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking strum v0.15.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking ara-test-utils v0.1.0 (/opt/rustwide/workdir/ara-test-utils)
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.0
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rocket_codegen v0.4.0 (https://github.com/SergioBenitez/Rocket#3c51a2f4)
[INFO] [stderr]    Compiling rocket v0.4.0 (https://github.com/SergioBenitez/Rocket#3c51a2f4)
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.1.5/src/lib.rs:88:42
[INFO] [stdout]    |
[INFO] [stdout] 88 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "30b3d812e5845a7c30672dfb721b87b176284e0015ba9f2f7e0d3684d0a2d662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b3d812e5845a7c30672dfb721b87b176284e0015ba9f2f7e0d3684d0a2d662", kill_on_drop: false }`
[INFO] [stdout] 30b3d812e5845a7c30672dfb721b87b176284e0015ba9f2f7e0d3684d0a2d662