[INFO] fetching crate minifier 0.0.36...
[INFO] checking minifier-0.0.36 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate minifier 0.0.36 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate minifier 0.0.36 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minifier 0.0.36
[INFO] finished tweaking crates.io crate minifier 0.0.36
[INFO] tweaked toml for crates.io crate minifier 0.0.36 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate minifier 0.0.36 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fe6c5558422050a06aba6d53c1b3be20cd9861957eae15da73275c2450958ba
[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" "5fe6c5558422050a06aba6d53c1b3be20cd9861957eae15da73275c2450958ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fe6c5558422050a06aba6d53c1b3be20cd9861957eae15da73275c2450958ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fe6c5558422050a06aba6d53c1b3be20cd9861957eae15da73275c2450958ba", kill_on_drop: false }`
[INFO] [stdout] 5fe6c5558422050a06aba6d53c1b3be20cd9861957eae15da73275c2450958ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd5f38daa6c23d63772ca8400923993993be1efed3bd00798462d0fc39e7d5a1
[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" "fd5f38daa6c23d63772ca8400923993993be1efed3bd00798462d0fc39e7d5a1", kill_on_drop: false }`
[INFO] [stderr]     Checking macro-utils v0.1.3
[INFO] [stderr]     Checking minifier v0.0.36 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/json/read/byte_to_char.rs:117:41
[INFO] [stdout]     |
[INFO] [stdout] 117 |             CharsError::Other(ref e) => Error::description(e),
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/json/read/byte_to_char.rs:117:41
[INFO] [stdout]     |
[INFO] [stdout] 117 |             CharsError::Other(ref e) => Error::description(e),
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "fd5f38daa6c23d63772ca8400923993993be1efed3bd00798462d0fc39e7d5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd5f38daa6c23d63772ca8400923993993be1efed3bd00798462d0fc39e7d5a1", kill_on_drop: false }`
[INFO] [stdout] fd5f38daa6c23d63772ca8400923993993be1efed3bd00798462d0fc39e7d5a1