[INFO] cloning repository https://github.com/masonium/card-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/masonium/card-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonium%2Fcard-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonium%2Fcard-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85ab7c08645b3af30ae23034d77de6f13b1e4e3c
[INFO] checking masonium/card-engine against master#05eac57ef6668c9d181b65aceb96b1e7881f60be for pr-127656
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonium%2Fcard-engine" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masonium/card-engine on toolchain 05eac57ef6668c9d181b65aceb96b1e7881f60be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masonium/card-engine
[INFO] finished tweaking git repo https://github.com/masonium/card-engine
[INFO] tweaked toml for git repo https://github.com/masonium/card-engine written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/masonium/card-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termion v1.3.0
[INFO] [stderr]   Downloaded num-complex v0.1.37
[INFO] [stderr]   Downloaded ndarray-rand v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53c995e2d5887001665e796dc8b277d7eda413eb6dbcdcd3ed01360cf6e075ea
[INFO] running `Command { std: "docker" "start" "-a" "53c995e2d5887001665e796dc8b277d7eda413eb6dbcdcd3ed01360cf6e075ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53c995e2d5887001665e796dc8b277d7eda413eb6dbcdcd3ed01360cf6e075ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53c995e2d5887001665e796dc8b277d7eda413eb6dbcdcd3ed01360cf6e075ea", kill_on_drop: false }`
[INFO] [stdout] 53c995e2d5887001665e796dc8b277d7eda413eb6dbcdcd3ed01360cf6e075ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 565106dc9ef64613b5e88ae0e1d28ae365a63792c7f5d28e28dc8fccd7fb8095
[INFO] running `Command { std: "docker" "start" "-a" "565106dc9ef64613b5e88ae0e1d28ae365a63792c7f5d28e28dc8fccd7fb8095", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling ndarray v0.9.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking itertools v0.6.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking termion v1.3.0
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking ndarray-rand v0.5.0
[INFO] [stderr]     Checking card-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/germanwhist/engine.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |         self.phase.as_ref().borrow()
[INFO] [stdout]     |                            ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `dyn GamePhase` does not implement `Borrow`, so calling `borrow` on `&dyn GamePhase` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/germanwhist/engine.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |         self.phase.as_ref().borrow()
[INFO] [stdout]     |                            ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `dyn GamePhase` does not implement `Borrow`, so calling `borrow` on `&dyn GamePhase` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_game_action` is never used
[INFO] [stdout]   --> src/bin/basic_player.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | trait Player {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] 18 |     fn on_game_action(&mut self, _ev: &GameEvent) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_game_action` is never used
[INFO] [stdout]   --> src/bin/basic_player.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | trait Player {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] 18 |     fn on_game_action(&mut self, _ev: &GameEvent) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "565106dc9ef64613b5e88ae0e1d28ae365a63792c7f5d28e28dc8fccd7fb8095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "565106dc9ef64613b5e88ae0e1d28ae365a63792c7f5d28e28dc8fccd7fb8095", kill_on_drop: false }`
[INFO] [stdout] 565106dc9ef64613b5e88ae0e1d28ae365a63792c7f5d28e28dc8fccd7fb8095
[INFO] checking masonium/card-engine against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonium%2Fcard-engine" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masonium/card-engine on toolchain 0c9c19b42881b7ee3d3f268d2369726c7f8dddfd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masonium/card-engine
[INFO] finished tweaking git repo https://github.com/masonium/card-engine
[INFO] tweaked toml for git repo https://github.com/masonium/card-engine written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/masonium/card-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b20fc779ecd41afc6ccd23d3c9fe33466f7cd384974a6bee14554a93a52f98e
[INFO] running `Command { std: "docker" "start" "-a" "8b20fc779ecd41afc6ccd23d3c9fe33466f7cd384974a6bee14554a93a52f98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b20fc779ecd41afc6ccd23d3c9fe33466f7cd384974a6bee14554a93a52f98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b20fc779ecd41afc6ccd23d3c9fe33466f7cd384974a6bee14554a93a52f98e", kill_on_drop: false }`
[INFO] [stdout] 8b20fc779ecd41afc6ccd23d3c9fe33466f7cd384974a6bee14554a93a52f98e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad2dcab339468bb51508afaa0f9b907237c575dcb07cc052782372d97be2aeb4
[INFO] running `Command { std: "docker" "start" "-a" "ad2dcab339468bb51508afaa0f9b907237c575dcb07cc052782372d97be2aeb4", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling ndarray v0.9.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking itertools v0.6.0
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stdout] error[E0365]: extern crate `core` is private and cannot be re-exported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bitflags-0.8.2/src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub use core as __core;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider making the `extern crate` item publicly accessible
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
[INFO] [stdout]    | +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0365`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitflags` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ad2dcab339468bb51508afaa0f9b907237c575dcb07cc052782372d97be2aeb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2dcab339468bb51508afaa0f9b907237c575dcb07cc052782372d97be2aeb4", kill_on_drop: false }`
[INFO] [stdout] ad2dcab339468bb51508afaa0f9b907237c575dcb07cc052782372d97be2aeb4