[INFO] cloning repository https://github.com/tomhoule/rust-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomhoule/rust-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhoule%2Frust-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhoule%2Frust-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4642dd4d9ce839a7684ee986fe6d1d6a4c49a357
[INFO] checking tomhoule/rust-experiment against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomhoule%2Frust-experiment" "/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/tomhoule/rust-experiment on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomhoule/rust-experiment
[INFO] finished tweaking git repo https://github.com/tomhoule/rust-experiment
[INFO] tweaked toml for git repo https://github.com/tomhoule/rust-experiment written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tomhoule/rust-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c36ef9da1fbe2689b6689e9d9853db7dd755b8bf1390dafdf99831460b0df4d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8c36ef9da1fbe2689b6689e9d9853db7dd755b8bf1390dafdf99831460b0df4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c36ef9da1fbe2689b6689e9d9853db7dd755b8bf1390dafdf99831460b0df4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c36ef9da1fbe2689b6689e9d9853db7dd755b8bf1390dafdf99831460b0df4d", kill_on_drop: false }`
[INFO] [stdout] 8c36ef9da1fbe2689b6689e9d9853db7dd755b8bf1390dafdf99831460b0df4d
[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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68827cbe168669dc81d43c61cc02c766643a5eca426f54efcc3b09901f675c20
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "68827cbe168669dc81d43c61cc02c766643a5eca426f54efcc3b09901f675c20", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling quote v0.3.4
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]     Checking debug-builders v0.1.0
[INFO] [stderr]    Compiling debugtrace v0.1.0
[INFO] [stderr]     Checking slog v1.2.1
[INFO] [stderr]     Checking serde v0.8.16
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]     Checking custom_derive v0.1.5
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dtoa v0.2.2
[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-1.2.1/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] [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`
[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[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[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 E0642`.
[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 E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "68827cbe168669dc81d43c61cc02c766643a5eca426f54efcc3b09901f675c20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68827cbe168669dc81d43c61cc02c766643a5eca426f54efcc3b09901f675c20", kill_on_drop: false }`
[INFO] [stdout] 68827cbe168669dc81d43c61cc02c766643a5eca426f54efcc3b09901f675c20