[INFO] cloning repository https://github.com/mdaffin/scribe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdaffin/scribe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdaffin%2Fscribe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdaffin%2Fscribe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd1bdf1431d676f55cac0126ebcf25841c89f3c3
[INFO] checking mdaffin/scribe against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdaffin%2Fscribe" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mdaffin/scribe on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mdaffin/scribe
[INFO] finished tweaking git repo https://github.com/mdaffin/scribe
[INFO] tweaked toml for git repo https://github.com/mdaffin/scribe written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mdaffin/scribe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termcolor v0.3.6
[INFO] [stderr]   Downloaded chrono v0.4.3
[INFO] [stderr]   Downloaded serde_derive v1.0.66
[INFO] [stderr]   Downloaded structopt v0.2.10
[INFO] [stderr]   Downloaded os_type v2.0.0
[INFO] [stderr]   Downloaded serde v1.0.66
[INFO] [stderr]   Downloaded structopt-derive v0.2.10
[INFO] [stderr]   Downloaded itertools v0.7.8
[INFO] [stderr]   Downloaded log v0.4.2
[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] [stderr]   Downloaded human-panic v1.0.0
[INFO] [stderr]   Downloaded backtrace v0.3.8
[INFO] [stderr]   Downloaded syn v0.14.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ab721b5e7d04544bfc4342cb9a61725bbcbecef654766771f72627eb9912b485
[INFO] running `Command { std: "docker" "start" "-a" "ab721b5e7d04544bfc4342cb9a61725bbcbecef654766771f72627eb9912b485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab721b5e7d04544bfc4342cb9a61725bbcbecef654766771f72627eb9912b485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab721b5e7d04544bfc4342cb9a61725bbcbecef654766771f72627eb9912b485", kill_on_drop: false }`
[INFO] [stdout] ab721b5e7d04544bfc4342cb9a61725bbcbecef654766771f72627eb9912b485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfd431b5f5ecd27f5ecac8a9cf0f55fd0bdddf2c1fe9b741a7ee0ca1a4468cb6
[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" "cfd431b5f5ecd27f5ecac8a9cf0f55fd0bdddf2c1fe9b741a7ee0ca1a4468cb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking os_type v2.0.0
[INFO] [stderr]     Checking chrono v0.4.3
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking simplelog v0.5.2
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking human-panic v1.0.0
[INFO] [stderr]     Checking scribe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:296:14
[INFO] [stdout]     |
[INFO] [stdout] 296 |             0...1024 => format!("{}", size),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:297:17
[INFO] [stdout]     |
[INFO] [stdout] 297 |             1024...1_048_576 => format!("{:.*}KiB", decimals, size as f64 / 1024.0),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:298:22
[INFO] [stdout]     |
[INFO] [stdout] 298 |             1_048_576...1_073_741_824 => format!("{:.*}MiB", decimals, size as f64 / 1_048_576.0),
[INFO] [stdout]     |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:299:26
[INFO] [stdout]     |
[INFO] [stdout] 299 |             1_073_741_824...1_099_511_627_776 => {
[INFO] [stdout]     |                          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:296:14
[INFO] [stdout]     |
[INFO] [stdout] 296 |             0...1024 => format!("{}", size),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:297:17
[INFO] [stdout]     |
[INFO] [stdout] 297 |             1024...1_048_576 => format!("{:.*}KiB", decimals, size as f64 / 1024.0),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:298:22
[INFO] [stdout]     |
[INFO] [stdout] 298 |             1_048_576...1_073_741_824 => format!("{:.*}MiB", decimals, size as f64 / 1_048_576.0),
[INFO] [stdout]     |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/block_dev.rs:299:26
[INFO] [stdout]     |
[INFO] [stdout] 299 |             1_073_741_824...1_099_511_627_776 => {
[INFO] [stdout]     |                          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns covering the same range
[INFO] [stdout]    --> src/block_dev.rs:297:13
[INFO] [stdout]     |
[INFO] [stdout] 296 |             0...1024 => format!("{}", size),
[INFO] [stdout]     |             -------- this range overlaps on `1024_u64`
[INFO] [stdout] 297 |             1024...1_048_576 => format!("{:.*}KiB", decimals, size as f64 / 1024.0),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ overlapping patterns
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(overlapping_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns covering the same range
[INFO] [stdout]    --> src/block_dev.rs:298:13
[INFO] [stdout]     |
[INFO] [stdout] 297 |             1024...1_048_576 => format!("{:.*}KiB", decimals, size as f64 / 1024.0),
[INFO] [stdout]     |             ---------------- this range overlaps on `1048576_u64`
[INFO] [stdout] 298 |             1_048_576...1_073_741_824 => format!("{:.*}MiB", decimals, size as f64 / 1_048_576.0),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ overlapping patterns
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns covering the same range
[INFO] [stdout]    --> src/block_dev.rs:299:13
[INFO] [stdout]     |
[INFO] [stdout] 298 |             1_048_576...1_073_741_824 => format!("{:.*}MiB", decimals, size as f64 / 1_048_576.0),
[INFO] [stdout]     |             ------------------------- this range overlaps on `1073741824_u64`
[INFO] [stdout] 299 |             1_073_741_824...1_099_511_627_776 => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overlapping patterns
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns covering the same range
[INFO] [stdout]    --> src/block_dev.rs:297:13
[INFO] [stdout]     |
[INFO] [stdout] 296 |             0...1024 => format!("{}", size),
[INFO] [stdout]     |             -------- this range overlaps on `1024_u64`
[INFO] [stdout] 297 |             1024...1_048_576 => format!("{:.*}KiB", decimals, size as f64 / 1024.0),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ overlapping patterns
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(overlapping_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns covering the same range
[INFO] [stdout]    --> src/block_dev.rs:298:13
[INFO] [stdout]     |
[INFO] [stdout] 297 |             1024...1_048_576 => format!("{:.*}KiB", decimals, size as f64 / 1024.0),
[INFO] [stdout]     |             ---------------- this range overlaps on `1048576_u64`
[INFO] [stdout] 298 |             1_048_576...1_073_741_824 => format!("{:.*}MiB", decimals, size as f64 / 1_048_576.0),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ overlapping patterns
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple patterns covering the same range
[INFO] [stdout]    --> src/block_dev.rs:299:13
[INFO] [stdout]     |
[INFO] [stdout] 298 |             1_048_576...1_073_741_824 => format!("{:.*}MiB", decimals, size as f64 / 1_048_576.0),
[INFO] [stdout]     |             ------------------------- this range overlaps on `1073741824_u64`
[INFO] [stdout] 299 |             1_073_741_824...1_099_511_627_776 => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overlapping patterns
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExternalDrive`
[INFO] [stdout]   --> src/block_dev.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     ExternalDrive,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/block_dev.rs:367:13
[INFO] [stdout]     |
[INFO] [stdout] 367 |             run_checks(&mut blkdev);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.75s
[INFO] running `Command { std: "docker" "inspect" "cfd431b5f5ecd27f5ecac8a9cf0f55fd0bdddf2c1fe9b741a7ee0ca1a4468cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd431b5f5ecd27f5ecac8a9cf0f55fd0bdddf2c1fe9b741a7ee0ca1a4468cb6", kill_on_drop: false }`
[INFO] [stdout] cfd431b5f5ecd27f5ecac8a9cf0f55fd0bdddf2c1fe9b741a7ee0ca1a4468cb6