[INFO] cloning repository https://github.com/mattwparas/rucket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattwparas/rucket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattwparas%2Frucket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattwparas%2Frucket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51ad5b3c80834cf9c27321831fd393f994b833f4
[INFO] testing mattwparas/rucket against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattwparas%2Frucket" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattwparas/rucket on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattwparas/rucket
[INFO] finished tweaking git repo https://github.com/mattwparas/rucket
[INFO] tweaked toml for git repo https://github.com/mattwparas/rucket written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/mattwparas/rucket already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d012d0e5f395a3cbe6b3a375b68930d8ab5195c87eaed2ce6a852d4faf8123bc
[INFO] running `Command { std: "docker" "start" "-a" "d012d0e5f395a3cbe6b3a375b68930d8ab5195c87eaed2ce6a852d4faf8123bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d012d0e5f395a3cbe6b3a375b68930d8ab5195c87eaed2ce6a852d4faf8123bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d012d0e5f395a3cbe6b3a375b68930d8ab5195c87eaed2ce6a852d4faf8123bc", kill_on_drop: false }`
[INFO] [stdout] d012d0e5f395a3cbe6b3a375b68930d8ab5195c87eaed2ce6a852d4faf8123bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 460112e85f08adb02704912f11beffeeba4a0c7b4bfa4703acd388ebf38a7983
[INFO] running `Command { std: "docker" "start" "-a" "460112e85f08adb02704912f11beffeeba4a0c7b4bfa4703acd388ebf38a7983", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling humantime v2.0.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling codespan-reporting v0.11.0
[INFO] [stderr]    Compiling tokio v1.3.0
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling pretty v0.10.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling async-compat v0.1.4
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling mio v0.7.9
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling dirs-next v1.0.2
[INFO] [stderr]    Compiling env_logger v0.8.2
[INFO] [stderr]    Compiling sized-chunks v0.6.2
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling rustyline-derive v0.2.0
[INFO] [stderr]    Compiling rustyline v6.3.0
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling logos v0.11.4
[INFO] [stderr]    Compiling futures-executor v0.3.13
[INFO] [stderr]    Compiling futures v0.3.13
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling steel v0.1.0 (/opt/rustwide/workdir/steel)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> steel/src/steel_vm/primitives.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> steel/src/steel_vm/primitives.rs:64:1
[INFO] [stdout]    |
[INFO] [stdout] 64 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> steel/src/steel_vm/vm.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         &self.callback.with_callback(Box::new(callback));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling steel_repl v0.1.0 (/opt/rustwide/workdir/steel_repl)
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling steel_derive v0.1.0 (/opt/rustwide/workdir/steel_derive)
[INFO] [stderr]    Compiling steel_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "460112e85f08adb02704912f11beffeeba4a0c7b4bfa4703acd388ebf38a7983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460112e85f08adb02704912f11beffeeba4a0c7b4bfa4703acd388ebf38a7983", kill_on_drop: false }`
[INFO] [stdout] 460112e85f08adb02704912f11beffeeba4a0c7b4bfa4703acd388ebf38a7983
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de8ba23008fa61d9a5f14000eeb67ce93d07211376777feed1dec45afd90162d
[INFO] running `Command { std: "docker" "start" "-a" "de8ba23008fa61d9a5f14000eeb67ce93d07211376777feed1dec45afd90162d", kill_on_drop: false }`
[INFO] [stderr]    Compiling steel_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> steel/src/steel_vm/primitives.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> steel/src/steel_vm/primitives.rs:64:1
[INFO] [stdout]    |
[INFO] [stdout] 64 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> steel/src/steel_vm/vm.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         &self.callback.with_callback(Box::new(callback));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "de8ba23008fa61d9a5f14000eeb67ce93d07211376777feed1dec45afd90162d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8ba23008fa61d9a5f14000eeb67ce93d07211376777feed1dec45afd90162d", kill_on_drop: false }`
[INFO] [stdout] de8ba23008fa61d9a5f14000eeb67ce93d07211376777feed1dec45afd90162d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cd3dc2b3342050670b0c193f64f4820b28edd65f347e684ef73c9fc2cc845c4
[INFO] running `Command { std: "docker" "start" "-a" "4cd3dc2b3342050670b0c193f64f4820b28edd65f347e684ef73c9fc2cc845c4", kill_on_drop: false }`
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]   --> steel/src/steel_vm/primitives.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]   --> steel/src/steel_vm/primitives.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> steel/src/steel_vm/vm.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |         &self.callback.with_callback(Box::new(callback));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/steel_client-48465909da279662)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4cd3dc2b3342050670b0c193f64f4820b28edd65f347e684ef73c9fc2cc845c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd3dc2b3342050670b0c193f64f4820b28edd65f347e684ef73c9fc2cc845c4", kill_on_drop: false }`
[INFO] [stdout] 4cd3dc2b3342050670b0c193f64f4820b28edd65f347e684ef73c9fc2cc845c4