[INFO] cloning repository https://github.com/Xion/rofld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Xion/rofld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXion%2Frofld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXion%2Frofld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a8b24822c43838920b6052c8099549e2d1f5e2c
[INFO] checking Xion/rofld against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXion%2Frofld" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Xion/rofld on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Xion/rofld
[INFO] finished tweaking git repo https://github.com/Xion/rofld
[INFO] tweaked toml for git repo https://github.com/Xion/rofld written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Xion/rofld already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f6c08d1ffa8601d22f04ad21e43c1a0375fde0a117ea299b448a41d238879c2
[INFO] running `Command { std: "docker" "start" "-a" "7f6c08d1ffa8601d22f04ad21e43c1a0375fde0a117ea299b448a41d238879c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f6c08d1ffa8601d22f04ad21e43c1a0375fde0a117ea299b448a41d238879c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6c08d1ffa8601d22f04ad21e43c1a0375fde0a117ea299b448a41d238879c2", kill_on_drop: false }`
[INFO] [stdout] 7f6c08d1ffa8601d22f04ad21e43c1a0375fde0a117ea299b448a41d238879c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df0e4e389cff5c168903ce974619258104c0fca4b47c3cfb86fc5de6c558a5ba
[INFO] running `Command { std: "docker" "start" "-a" "df0e4e389cff5c168903ce974619258104c0fca4b47c3cfb86fc5de6c558a5ba", 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] [stderr]     Checking libc v0.2.28
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking slog v1.5.2
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]     Checking serde v1.0.11
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking odds v0.2.25
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]    Compiling derive_builder v0.4.7
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking linked-hash-map v0.0.10
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking rgb v0.7.0
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking macro-attr v0.2.0
[INFO] [stdout] error[E0277]: `core::fmt::Opaque` cannot be shared between threads safely
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-1.5.2/src/ser.rs:228:6
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub trait SyncSerialize: Send + Sync + 'static + Serialize {}
[INFO] [stdout]     |                                 ---- required by this bound in `SyncSerialize`
[INFO] [stdout] ...
[INFO] [stdout] 228 | impl SyncSerialize for fmt::Arguments<'static> {}
[INFO] [stdout]     |      ^^^^^^^^^^^^^ `core::fmt::Opaque` cannot be shared between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `Arguments<'static>`, the trait `Sync` is not implemented for `core::fmt::Opaque`
[INFO] [stdout]     = note: required because it appears within the type `&'static core::fmt::Opaque`
[INFO] [stdout]     = note: required because it appears within the type `ArgumentV1<'static>`
[INFO] [stdout]     = note: required because it appears within the type `[ArgumentV1<'static>]`
[INFO] [stdout]     = note: required because it appears within the type `&'static [ArgumentV1<'static>]`
[INFO] [stdout]     = note: required because it appears within the type `Arguments<'static>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slog` 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" "df0e4e389cff5c168903ce974619258104c0fca4b47c3cfb86fc5de6c558a5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df0e4e389cff5c168903ce974619258104c0fca4b47c3cfb86fc5de6c558a5ba", kill_on_drop: false }`
[INFO] [stdout] df0e4e389cff5c168903ce974619258104c0fca4b47c3cfb86fc5de6c558a5ba