[INFO] fetching crate grin_miner_util 0.5.2...
[INFO] testing grin_miner_util-0.5.2 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate grin_miner_util 0.5.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate grin_miner_util 0.5.2 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grin_miner_util 0.5.2
[INFO] finished tweaking crates.io crate grin_miner_util 0.5.2
[INFO] tweaked toml for crates.io crate grin_miner_util 0.5.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93f120c7fe386c01ee8531095d1ee184063f85982e7f7bf2a6ebb2c00a149b41
[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" "93f120c7fe386c01ee8531095d1ee184063f85982e7f7bf2a6ebb2c00a149b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93f120c7fe386c01ee8531095d1ee184063f85982e7f7bf2a6ebb2c00a149b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f120c7fe386c01ee8531095d1ee184063f85982e7f7bf2a6ebb2c00a149b41", kill_on_drop: false }`
[INFO] [stdout] 93f120c7fe386c01ee8531095d1ee184063f85982e7f7bf2a6ebb2c00a149b41
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a7371e96373c0249409985b524bef6fff50070f59e22016a58a6a7b590c7f85
[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" "1a7371e96373c0249409985b524bef6fff50070f59e22016a58a6a7b590c7f85", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling slog v2.1.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling slog-async v2.7.0
[INFO] [stdout] error[E0407]: method `emit_u128` is not a member of trait `Serializer`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |       fn emit_u128(&mut self, key: Key, val: u128) -> slog::Result {
[INFO] [stdout]     |       ^  --------- help: there is an associated function with a similar name: `emit_u8`
[INFO] [stdout]     |  _____|
[INFO] [stdout]     | |
[INFO] [stdout] 149 | |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout] 150 | |         Ok(())
[INFO] [stdout] 151 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `emit_i128` is not a member of trait `Serializer`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |       fn emit_i128(&mut self, key: Key, val: i128) -> slog::Result {
[INFO] [stdout]     |       ^  --------- help: there is an associated function with a similar name: `emit_i8`
[INFO] [stdout]     |  _____|
[INFO] [stdout]     | |
[INFO] [stdout] 154 | |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout] 155 | |         Ok(())
[INFO] [stdout] 156 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] error[E0277]: the trait bound `u128: Value` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:149:61
[INFO] [stdout]      |
[INFO] [stdout] 149  |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout]      |                                               --------      ^^^ the trait `Value` is not implemented for `u128`
[INFO] [stdout]      |                                               |
[INFO] [stdout]      |                                               required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout] note: required by `SingleKV`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.1.1/src/lib.rs:2687:1
[INFO] [stdout]      |
[INFO] [stdout] 2687 | / pub struct SingleKV<V>(pub Key, pub V)
[INFO] [stdout] 2688 | | where
[INFO] [stdout] 2689 | |     V: Value;
[INFO] [stdout]      | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u128: Value` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:149:42
[INFO] [stdout]      |
[INFO] [stdout] 149  |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout]      |                                 -------- ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Value` is not implemented for `u128`
[INFO] [stdout]      |                                 |
[INFO] [stdout]      |                                 required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout] note: required by a bound in `SingleKV`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.1.1/src/lib.rs:2689:8
[INFO] [stdout]      |
[INFO] [stdout] 2689 |     V: Value;
[INFO] [stdout]      |        ^^^^^ required by this bound in `SingleKV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u128: Value` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:149:33
[INFO] [stdout]      |
[INFO] [stdout] 149  |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Value` is not implemented for `u128`
[INFO] [stdout]      |
[INFO] [stdout] note: required by a bound in `SingleKV`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.1.1/src/lib.rs:2689:8
[INFO] [stdout]      |
[INFO] [stdout] 2689 |     V: Value;
[INFO] [stdout]      |        ^^^^^ required by this bound in `SingleKV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `i128: Value` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:154:61
[INFO] [stdout]      |
[INFO] [stdout] 154  |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout]      |                                               --------      ^^^ the trait `Value` is not implemented for `i128`
[INFO] [stdout]      |                                               |
[INFO] [stdout]      |                                               required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout] note: required by `SingleKV`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.1.1/src/lib.rs:2687:1
[INFO] [stdout]      |
[INFO] [stdout] 2687 | / pub struct SingleKV<V>(pub Key, pub V)
[INFO] [stdout] 2688 | | where
[INFO] [stdout] 2689 | |     V: Value;
[INFO] [stdout]      | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `i128: Value` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:154:42
[INFO] [stdout]      |
[INFO] [stdout] 154  |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout]      |                                 -------- ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Value` is not implemented for `i128`
[INFO] [stdout]      |                                 |
[INFO] [stdout]      |                                 required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout] note: required by a bound in `SingleKV`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.1.1/src/lib.rs:2689:8
[INFO] [stdout]      |
[INFO] [stdout] 2689 |     V: Value;
[INFO] [stdout]      |        ^^^^^ required by this bound in `SingleKV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `i128: Value` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-async-2.7.0/lib.rs:154:33
[INFO] [stdout]      |
[INFO] [stdout] 154  |         take(&mut self.kv, |kv| Box::new((kv, SingleKV(key, val))));
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Value` is not implemented for `i128`
[INFO] [stdout]      |
[INFO] [stdout] note: required by a bound in `SingleKV`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.1.1/src/lib.rs:2689:8
[INFO] [stdout]      |
[INFO] [stdout] 2689 |     V: Value;
[INFO] [stdout]      |        ^^^^^ required by this bound in `SingleKV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0407.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slog-async` due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1a7371e96373c0249409985b524bef6fff50070f59e22016a58a6a7b590c7f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7371e96373c0249409985b524bef6fff50070f59e22016a58a6a7b590c7f85", kill_on_drop: false }`
[INFO] [stdout] 1a7371e96373c0249409985b524bef6fff50070f59e22016a58a6a7b590c7f85