[INFO] cloning repository https://github.com/joecorcoran/monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joecorcoran/monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoecorcoran%2Fmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoecorcoran%2Fmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34bb52bd39c5ab920f846980c02ee8f8567182c2
[INFO] checking joecorcoran/monkey against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoecorcoran%2Fmonkey" "/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/joecorcoran/monkey on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joecorcoran/monkey
[INFO] finished tweaking git repo https://github.com/joecorcoran/monkey
[INFO] tweaked toml for git repo https://github.com/joecorcoran/monkey written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/joecorcoran/monkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-7/source/monkey-web/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-7/source/Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded js-sys v0.3.7
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.30
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.30
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.30
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.30
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.30
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 317f8a1977e77a38e10b6526050cb0daba7618f801de0f2b47c59d23c7cbaf0a
[INFO] running `Command { std: "docker" "start" "-a" "317f8a1977e77a38e10b6526050cb0daba7618f801de0f2b47c59d23c7cbaf0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "317f8a1977e77a38e10b6526050cb0daba7618f801de0f2b47c59d23c7cbaf0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "317f8a1977e77a38e10b6526050cb0daba7618f801de0f2b47c59d23c7cbaf0a", kill_on_drop: false }`
[INFO] [stdout] 317f8a1977e77a38e10b6526050cb0daba7618f801de0f2b47c59d23c7cbaf0a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b94e9663cae90a8232ea74e317a4314db9749a9b5bf95908f2da6a0da4a4e0a
[INFO] running `Command { std: "docker" "start" "-a" "1b94e9663cae90a8232ea74e317a4314db9749a9b5bf95908f2da6a0da4a4e0a", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/monkey-web/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.30
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling wasm-bindgen v0.2.30
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking monkey-core v0.0.0 (/opt/rustwide/workdir/monkey-core)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> monkey-core/src/object.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |         write!(f, "[");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> monkey-core/src/object.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 |             write!(f, "{}, ", o);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> monkey-core/src/object.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 |             write!(f, "{}", o);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> monkey-core/src/object.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |         write!(f, "[");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> monkey-core/src/object.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 |             write!(f, "{}, ", o);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> monkey-core/src/object.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 |             write!(f, "{}", o);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking monkey-cli v0.0.0 (/opt/rustwide/workdir/monkey-cli)
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.30
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.30
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.30
[INFO] [stderr]     Checking js-sys v0.3.7
[INFO] [stderr]     Checking monkey-web v0.0.0 (/opt/rustwide/workdir/monkey-web)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.56s
[INFO] running `Command { std: "docker" "inspect" "1b94e9663cae90a8232ea74e317a4314db9749a9b5bf95908f2da6a0da4a4e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b94e9663cae90a8232ea74e317a4314db9749a9b5bf95908f2da6a0da4a4e0a", kill_on_drop: false }`
[INFO] [stdout] 1b94e9663cae90a8232ea74e317a4314db9749a9b5bf95908f2da6a0da4a4e0a