[INFO] fetching crate Metamorfish 0.0.1...
[INFO] checking Metamorfish-0.0.1 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate Metamorfish 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate Metamorfish 0.0.1 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Metamorfish 0.0.1
[INFO] finished tweaking crates.io crate Metamorfish 0.0.1
[INFO] tweaked toml for crates.io crate Metamorfish 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded archery v0.4.0
[INFO] [stderr]   Downloaded test-env-log v0.2.7
[INFO] [stderr]   Downloaded rpds v0.8.0
[INFO] [stderr]   Downloaded protofish v0.2.5
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4759379ce88a3395a0609758d7b9b56cacfc23cb32d2b910cd8888e86a1e0729
[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" "4759379ce88a3395a0609758d7b9b56cacfc23cb32d2b910cd8888e86a1e0729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4759379ce88a3395a0609758d7b9b56cacfc23cb32d2b910cd8888e86a1e0729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4759379ce88a3395a0609758d7b9b56cacfc23cb32d2b910cd8888e86a1e0729", kill_on_drop: false }`
[INFO] [stdout] 4759379ce88a3395a0609758d7b9b56cacfc23cb32d2b910cd8888e86a1e0729
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cf617674ce24497166f8413cb503971e00a8352fd17ec29ca612a35cd18c044
[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" "8cf617674ce24497166f8413cb503971e00a8352fd17ec29ca612a35cd18c044", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking archery v0.4.0
[INFO] [stderr]     Checking rpds v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling test-env-log v0.2.7
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking protofish v0.2.5
[INFO] [stderr]     Checking Metamorfish v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `MessageInfo`, `MessageRef`
[INFO] [stdout]  --> src/visitor.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use protofish::context::{MessageInfo, MessageRef};
[INFO] [stdout]   |                          ^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rpds::HashTrieSet`
[INFO] [stdout]  --> src/visitor.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rpds::HashTrieSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MessageInfo`, `MessageRef`
[INFO] [stdout]  --> src/visitor.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use protofish::context::{MessageInfo, MessageRef};
[INFO] [stdout]   |                          ^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rpds::HashTrieSet`
[INFO] [stdout]  --> src/visitor.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rpds::HashTrieSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Metamorfish` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `metamorfish`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Metamorfish` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `metamorfish`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.90s
[INFO] running `Command { std: "docker" "inspect" "8cf617674ce24497166f8413cb503971e00a8352fd17ec29ca612a35cd18c044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf617674ce24497166f8413cb503971e00a8352fd17ec29ca612a35cd18c044", kill_on_drop: false }`
[INFO] [stdout] 8cf617674ce24497166f8413cb503971e00a8352fd17ec29ca612a35cd18c044