[INFO] fetching crate difftastic-lib 0.0.2...
[INFO] checking difftastic-lib-0.0.2 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate difftastic-lib 0.0.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate difftastic-lib 0.0.2
[INFO] finished tweaking crates.io crate difftastic-lib 0.0.2
[INFO] tweaked toml for crates.io crate difftastic-lib 0.0.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate difftastic-lib 0.0.2 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate difftastic-lib 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d429c87f22e2365b06ba51a2a107188a95ddf85cf23cfe2131a2c5cc11cead5b
[INFO] running `Command { std: "docker" "start" "-a" "d429c87f22e2365b06ba51a2a107188a95ddf85cf23cfe2131a2c5cc11cead5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d429c87f22e2365b06ba51a2a107188a95ddf85cf23cfe2131a2c5cc11cead5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d429c87f22e2365b06ba51a2a107188a95ddf85cf23cfe2131a2c5cc11cead5b", kill_on_drop: false }`
[INFO] [stdout] d429c87f22e2365b06ba51a2a107188a95ddf85cf23cfe2131a2c5cc11cead5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5a1d720adc1da7d5cdbfaff794b901f9d1565e80fd00aeac9f3074cee4351c7
[INFO] running `Command { std: "docker" "start" "-a" "c5a1d720adc1da7d5cdbfaff794b901f9d1565e80fd00aeac9f3074cee4351c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.24
[INFO] [stderr]    Compiling io-lifetimes v0.7.3
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling rustix v0.35.9
[INFO] [stderr]    Compiling tree-sitter v0.20.6
[INFO] [stderr]     Checking linux-raw-sys v0.0.46
[INFO] [stderr]     Checking os_str_bytes v6.0.1
[INFO] [stderr]     Checking fixedbitset v0.4.1
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.22
[INFO] [stderr]     Checking archery v0.4.0
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking rpds v0.10.0
[INFO] [stderr]     Checking bumpalo v3.9.1
[INFO] [stderr]     Checking radix-heap v0.4.2
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking owo-colors v3.4.0
[INFO] [stderr]     Checking wu-diff v0.1.2
[INFO] [stderr]     Checking pretty_assertions v1.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking petgraph v0.6.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]     Checking const_format v0.2.23
[INFO] [stderr]     Checking mimalloc v0.1.28
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking rayon-core v1.9.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking tree_magic_mini v3.0.3
[INFO] [stderr]     Checking terminal_size v0.2.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling difftastic-lib v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `LinePosition` is never constructed
[INFO] [stdout]   --> src/lines.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct LinePosition {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Vertex<'_, '_>` instead of cloning the inner type
[INFO] [stdout]   --> src/diff/dijkstra.rs:94:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |         res.push((edge, prev.clone()));
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/parse/guess_language.rs:239:63
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let lang = match mode_name.to_ascii_lowercase().trim().borrow() {
[INFO] [stdout]     |                                                               ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/options.rs:304:31
[INFO] [stdout]     |
[INFO] [stdout] 304 |         match display_mode_str.borrow() {
[INFO] [stdout]     |                               ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinePosition` is never constructed
[INFO] [stdout]   --> src/lines.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct LinePosition {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&graph::Vertex<'_, '_>` instead of cloning the inner type
[INFO] [stdout]   --> src/diff/dijkstra.rs:94:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |         res.push((edge, prev.clone()));
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/parse/guess_language.rs:239:63
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let lang = match mode_name.to_ascii_lowercase().trim().borrow() {
[INFO] [stdout]     |                                                               ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/options.rs:304:31
[INFO] [stdout]     |
[INFO] [stdout] 304 |         match display_mode_str.borrow() {
[INFO] [stdout]     |                               ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.74s
[INFO] running `Command { std: "docker" "inspect" "c5a1d720adc1da7d5cdbfaff794b901f9d1565e80fd00aeac9f3074cee4351c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5a1d720adc1da7d5cdbfaff794b901f9d1565e80fd00aeac9f3074cee4351c7", kill_on_drop: false }`
[INFO] [stdout] c5a1d720adc1da7d5cdbfaff794b901f9d1565e80fd00aeac9f3074cee4351c7
