[INFO] fetching crate tt-equal 0.1.2...
[INFO] checking tt-equal-0.1.2 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate tt-equal 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tt-equal 0.1.2 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tt-equal 0.1.2
[INFO] finished tweaking crates.io crate tt-equal 0.1.2
[INFO] tweaked toml for crates.io crate tt-equal 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c7b23d13cc23cc86e406c3dfe5184cf4d4592289515c1e9ff3031b3d88ba331
[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" "8c7b23d13cc23cc86e406c3dfe5184cf4d4592289515c1e9ff3031b3d88ba331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c7b23d13cc23cc86e406c3dfe5184cf4d4592289515c1e9ff3031b3d88ba331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c7b23d13cc23cc86e406c3dfe5184cf4d4592289515c1e9ff3031b3d88ba331", kill_on_drop: false }`
[INFO] [stdout] 8c7b23d13cc23cc86e406c3dfe5184cf4d4592289515c1e9ff3031b3d88ba331
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f7c045b9d80456f715fa055c74e26964084c82dee75f90ac2aefb360f96b4c6
[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" "6f7c045b9d80456f715fa055c74e26964084c82dee75f90ac2aefb360f96b4c6", kill_on_drop: false }`
[INFO] [stderr]     Checking tt-call v1.0.7
[INFO] [stderr]     Checking tt-equal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:162:64
[INFO] [stdout]     |
[INFO] [stdout] 162 |             "'tt_equal' expects its input value to be within '[{..}]' \
[INFO] [stdout]     |                                                                ^  ^
[INFO] [stdout] 163 |              but it received additional tokens after the braces ('{..}')."
[INFO] [stdout]     |                                                                   ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 162 |             "{}", "'tt_equal' expects its input value to be within '[{..}]' \
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:162:64
[INFO] [stdout]     |
[INFO] [stdout] 162 |             "'tt_equal' expects its input value to be within '[{..}]' \
[INFO] [stdout]     |                                                                ^  ^
[INFO] [stdout] 163 |              but it received additional tokens after the braces ('{..}')."
[INFO] [stdout]     |                                                                   ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 162 |             "{}", "'tt_equal' expects its input value to be within '[{..}]' \
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:162:64
[INFO] [stdout]     |
[INFO] [stdout] 162 |             "'tt_equal' expects its input value to be within '[{..}]' \
[INFO] [stdout]     |                                                                ^  ^
[INFO] [stdout] 163 |              but it received additional tokens after the braces ('{..}')."
[INFO] [stdout]     |                                                                   ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 162 |             "{}", "'tt_equal' expects its input value to be within '[{..}]' \
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "6f7c045b9d80456f715fa055c74e26964084c82dee75f90ac2aefb360f96b4c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f7c045b9d80456f715fa055c74e26964084c82dee75f90ac2aefb360f96b4c6", kill_on_drop: false }`
[INFO] [stdout] 6f7c045b9d80456f715fa055c74e26964084c82dee75f90ac2aefb360f96b4c6