[INFO] fetching crate tw_pack_lib 0.1.21...
[INFO] checking tw_pack_lib-0.1.21 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate tw_pack_lib 0.1.21 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate tw_pack_lib 0.1.21 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tw_pack_lib 0.1.21
[INFO] finished tweaking crates.io crate tw_pack_lib 0.1.21
[INFO] tweaked toml for crates.io crate tw_pack_lib 0.1.21 written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 879253b97bc4fd60e11176d2978286803a11b7a6a53298b3179f82d56390c42e
[INFO] running `Command { std: "docker" "start" "-a" "879253b97bc4fd60e11176d2978286803a11b7a6a53298b3179f82d56390c42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879253b97bc4fd60e11176d2978286803a11b7a6a53298b3179f82d56390c42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879253b97bc4fd60e11176d2978286803a11b7a6a53298b3179f82d56390c42e", kill_on_drop: false }`
[INFO] [stdout] 879253b97bc4fd60e11176d2978286803a11b7a6a53298b3179f82d56390c42e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a66922a58aaacbfd1159a5f0391591e06c0c37706ba39690b8d83c394cf6c0a1
[INFO] running `Command { std: "docker" "start" "-a" "a66922a58aaacbfd1159a5f0391591e06c0c37706ba39690b8d83c394cf6c0a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitflags v1.3.1
[INFO] [stderr]     Checking cached_file_view v0.1.4
[INFO] [stderr]     Checking tw_pack_lib v0.1.21 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:233:86
[INFO] [stdout]     |
[INFO] [stdout] 233 | ....range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() 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: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 233 -                 assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout] 233 +                 assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, "{} != {}", plaintext.len(), lazy.range.end - lazy.range.start);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:254:90
[INFO] [stdout]     |
[INFO] [stdout] 254 | ....range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() 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: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 254 -                     assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout] 254 +                     assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, "{} != {}", plaintext.len(), lazy.range.end - lazy.range.start);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:233:86
[INFO] [stdout]     |
[INFO] [stdout] 233 | ....range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() 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: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 233 -                 assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout] 233 +                 assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, "{} != {}", plaintext.len(), lazy.range.end - lazy.range.start);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:254:90
[INFO] [stdout]     |
[INFO] [stdout] 254 | ....range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() 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: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 254 -                     assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, format!("{} != {}", plaintext.len(), lazy.range.end - lazy.range.start));
[INFO] [stdout] 254 +                     assert!(plaintext.len() as u64 == lazy.range.end - lazy.range.start, "{} != {}", plaintext.len(), lazy.range.end - lazy.range.start);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "a66922a58aaacbfd1159a5f0391591e06c0c37706ba39690b8d83c394cf6c0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66922a58aaacbfd1159a5f0391591e06c0c37706ba39690b8d83c394cf6c0a1", kill_on_drop: false }`
[INFO] [stdout] a66922a58aaacbfd1159a5f0391591e06c0c37706ba39690b8d83c394cf6c0a1