[INFO] fetching crate validit 0.2.4...
[INFO] checking validit-0.2.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate validit 0.2.4 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate validit 0.2.4
[INFO] finished tweaking crates.io crate validit 0.2.4
[INFO] tweaked toml for crates.io crate validit 0.2.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate validit 0.2.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91c281ceb1f92739ae3032ff2f7bac3ef33a98b6f1e13af20ad626754d09271c
[INFO] running `Command { std: "docker" "start" "-a" "91c281ceb1f92739ae3032ff2f7bac3ef33a98b6f1e13af20ad626754d09271c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91c281ceb1f92739ae3032ff2f7bac3ef33a98b6f1e13af20ad626754d09271c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c281ceb1f92739ae3032ff2f7bac3ef33a98b6f1e13af20ad626754d09271c", kill_on_drop: false }`
[INFO] [stdout] 91c281ceb1f92739ae3032ff2f7bac3ef33a98b6f1e13af20ad626754d09271c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 461a63f6a13fe77d4127f8fbd954c1958fe3d6b7b1b3f5a77d6b0c61d9f32a15
[INFO] running `Command { std: "docker" "start" "-a" "461a63f6a13fe77d4127f8fbd954c1958fe3d6b7b1b3f5a77d6b0c61d9f32a15", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking anyerror v0.1.13
[INFO] [stderr]     Checking validit v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> src/valid_test.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         format!("{:?}", Foo::new_valid(20));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> src/valid_test.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         format!("{}", Foo::new_valid(20));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.72s
[INFO] running `Command { std: "docker" "inspect" "461a63f6a13fe77d4127f8fbd954c1958fe3d6b7b1b3f5a77d6b0c61d9f32a15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "461a63f6a13fe77d4127f8fbd954c1958fe3d6b7b1b3f5a77d6b0c61d9f32a15", kill_on_drop: false }`
[INFO] [stdout] 461a63f6a13fe77d4127f8fbd954c1958fe3d6b7b1b3f5a77d6b0c61d9f32a15