[INFO] cloning repository https://github.com/grifhughes/rustchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grifhughes/rustchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrifhughes%2Frustchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrifhughes%2Frustchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfe763908ecafd3dd35ae9ee5fcbb8a47d530b6a
[INFO] checking grifhughes/rustchain against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrifhughes%2Frustchain" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grifhughes/rustchain on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grifhughes/rustchain
[INFO] finished tweaking git repo https://github.com/grifhughes/rustchain
[INFO] tweaked toml for git repo https://github.com/grifhughes/rustchain written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/grifhughes/rustchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quasi_codegen v0.7.0
[INFO] [stderr]   Downloaded serde_codegen v0.6.14
[INFO] [stderr]   Downloaded quasi_macros v0.7.0
[INFO] [stderr]   Downloaded quasi v0.7.0
[INFO] [stderr]   Downloaded bincode v0.4.1
[INFO] [stderr]   Downloaded aster v0.13.1
[INFO] [stderr]   Downloaded serde_macros v0.6.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a66259b06c0bd3b22b3f474abdfb69812efd8055c7da5a69a38e7f54716f3b0
[INFO] running `Command { std: "docker" "start" "-a" "5a66259b06c0bd3b22b3f474abdfb69812efd8055c7da5a69a38e7f54716f3b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a66259b06c0bd3b22b3f474abdfb69812efd8055c7da5a69a38e7f54716f3b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a66259b06c0bd3b22b3f474abdfb69812efd8055c7da5a69a38e7f54716f3b0", kill_on_drop: false }`
[INFO] [stdout] 5a66259b06c0bd3b22b3f474abdfb69812efd8055c7da5a69a38e7f54716f3b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b3bfa55f532b4f069e30a8917e29486ddbe5220dafa5b9bc5e9a1eb9af0b522
[INFO] running `Command { std: "docker" "start" "-a" "6b3bfa55f532b4f069e30a8917e29486ddbe5220dafa5b9bc5e9a1eb9af0b522", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]    Compiling aster v0.13.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling serde_codegen v0.6.14
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling quasi v0.7.0
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quasi-0.7.0/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quasi`
[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] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aster-0.13.1/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6b3bfa55f532b4f069e30a8917e29486ddbe5220dafa5b9bc5e9a1eb9af0b522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3bfa55f532b4f069e30a8917e29486ddbe5220dafa5b9bc5e9a1eb9af0b522", kill_on_drop: false }`
[INFO] [stdout] 6b3bfa55f532b4f069e30a8917e29486ddbe5220dafa5b9bc5e9a1eb9af0b522