[INFO] fetching crate unit_test_utils 0.1.3...
[INFO] checking unit_test_utils-0.1.3 against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] extracting crate unit_test_utils 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate unit_test_utils 0.1.3 on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unit_test_utils 0.1.3
[INFO] finished tweaking crates.io crate unit_test_utils 0.1.3
[INFO] tweaked toml for crates.io crate unit_test_utils 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "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 9 packages to latest compatible versions
[INFO] [stderr]       Adding num v0.2.1 (latest: v0.4.3)
[INFO] [stderr]       Adding num-bigint v0.2.6 (latest: v0.4.6)
[INFO] [stderr]       Adding num-complex v0.2.4 (latest: v0.4.6)
[INFO] [stderr]       Adding num-rational v0.2.4 (latest: v0.4.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bbe32166640f194b03084bdbd1b9484658a964c68ab934c933ffe28dd9ad43b
[INFO] running `Command { std: "docker" "start" "-a" "8bbe32166640f194b03084bdbd1b9484658a964c68ab934c933ffe28dd9ad43b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bbe32166640f194b03084bdbd1b9484658a964c68ab934c933ffe28dd9ad43b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bbe32166640f194b03084bdbd1b9484658a964c68ab934c933ffe28dd9ad43b", kill_on_drop: false }`
[INFO] [stdout] 8bbe32166640f194b03084bdbd1b9484658a964c68ab934c933ffe28dd9ad43b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8778b21f1175a20b0cbb6424011d684f8c2d0baa6345f54c7a0ab513b5539985
[INFO] running `Command { std: "docker" "start" "-a" "8778b21f1175a20b0cbb6424011d684f8c2d0baa6345f54c7a0ab513b5539985", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking unit_test_utils v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:97:51
[INFO] [stdout]    |
[INFO] [stdout] 97 |     assert!(nearly_equal(a, b, rel_tol, abs_tol), msg);
[INFO] [stdout]    |                                                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 97 |     assert!(nearly_equal(a, b, rel_tol, abs_tol), "{}", msg);
[INFO] [stdout]    |                                                   +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:97:51
[INFO] [stdout]    |
[INFO] [stdout] 97 |     assert!(nearly_equal(a, b, rel_tol, abs_tol), msg);
[INFO] [stdout]    |                                                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 97 |     assert!(nearly_equal(a, b, rel_tol, abs_tol), "{}", msg);
[INFO] [stdout]    |                                                   +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "8778b21f1175a20b0cbb6424011d684f8c2d0baa6345f54c7a0ab513b5539985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8778b21f1175a20b0cbb6424011d684f8c2d0baa6345f54c7a0ab513b5539985", kill_on_drop: false }`
[INFO] [stdout] 8778b21f1175a20b0cbb6424011d684f8c2d0baa6345f54c7a0ab513b5539985