[INFO] fetching crate fb_futures_ext 0.1.2...
[INFO] checking fb_futures_ext-0.1.2 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate fb_futures_ext 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate fb_futures_ext 0.1.2 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fb_futures_ext 0.1.2
[INFO] finished tweaking crates.io crate fb_futures_ext 0.1.2
[INFO] tweaked toml for crates.io crate fb_futures_ext 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-codec v0.1.2
[INFO] [stderr]   Downloaded tokio-uds v0.2.7
[INFO] [stderr]   Downloaded quickcheck v0.9.2
[INFO] [stderr]   Downloaded tokio-fs v0.1.7
[INFO] [stderr]   Downloaded pretty_assertions v0.6.1
[INFO] [stderr]   Downloaded tokio-udp v0.1.6
[INFO] [stderr]   Downloaded fb_cloned v0.1.3
[INFO] [stderr]   Downloaded lock_ext v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7a6c85b32d8554a73f278808d06ea8bef0d288be56311c4771882bdc668a116
[INFO] running `Command { std: "docker" "start" "-a" "f7a6c85b32d8554a73f278808d06ea8bef0d288be56311c4771882bdc668a116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7a6c85b32d8554a73f278808d06ea8bef0d288be56311c4771882bdc668a116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a6c85b32d8554a73f278808d06ea8bef0d288be56311c4771882bdc668a116", kill_on_drop: false }`
[INFO] [stdout] f7a6c85b32d8554a73f278808d06ea8bef0d288be56311c4771882bdc668a116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c9cb1761754fb8d56ce1452fed592aa766073c75df84af0c5fed66a2d84dab4
[INFO] running `Command { std: "docker" "start" "-a" "6c9cb1761754fb8d56ce1452fed592aa766073c75df84af0c5fed66a2d84dab4", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking fb_cloned v0.1.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking lock_ext v0.1.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking fb_futures_ext v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/bounded_traversal/dag.rs:239:17
[INFO] [stdout]     |
[INFO] [stdout] 239 |             let mut children = children
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:10:9
[INFO] [stdout]     |
[INFO] [stdout] 10  | #![deny(warnings, missing_docs, clippy::all, broken_intra_doc_links)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fb_futures_ext` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/bounded_traversal/dag.rs:239:17
[INFO] [stdout]     |
[INFO] [stdout] 239 |             let mut children = children
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:10:9
[INFO] [stdout]     |
[INFO] [stdout] 10  | #![deny(warnings, missing_docs, clippy::all, broken_intra_doc_links)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fb_futures_ext` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6c9cb1761754fb8d56ce1452fed592aa766073c75df84af0c5fed66a2d84dab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c9cb1761754fb8d56ce1452fed592aa766073c75df84af0c5fed66a2d84dab4", kill_on_drop: false }`
[INFO] [stdout] 6c9cb1761754fb8d56ce1452fed592aa766073c75df84af0c5fed66a2d84dab4
