[INFO] fetching crate mt-dom 0.59.2...
[INFO] checking mt-dom-0.59.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate mt-dom 0.59.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mt-dom 0.59.2
[INFO] finished tweaking crates.io crate mt-dom 0.59.2
[INFO] tweaked toml for crates.io crate mt-dom 0.59.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mt-dom 0.59.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mt-dom 0.59.2 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0569dd3d829a5e67c8cd144be54d0e19a59b2218a9d0a1908f1ffa61ec5711ab
[INFO] running `Command { std: "docker" "start" "-a" "0569dd3d829a5e67c8cd144be54d0e19a59b2218a9d0a1908f1ffa61ec5711ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0569dd3d829a5e67c8cd144be54d0e19a59b2218a9d0a1908f1ffa61ec5711ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0569dd3d829a5e67c8cd144be54d0e19a59b2218a9d0a1908f1ffa61ec5711ab", kill_on_drop: false }`
[INFO] [stdout] 0569dd3d829a5e67c8cd144be54d0e19a59b2218a9d0a1908f1ffa61ec5711ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fc958daf902b41db14be61a615611c4d78d5144f739370b16a2ac2dbb04f2f3
[INFO] running `Command { std: "docker" "start" "-a" "6fc958daf902b41db14be61a615611c4d78d5144f739370b16a2ac2dbb04f2f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking longest-increasing-subsequence v0.1.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking mt-dom v0.59.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stdout] warning: unused import: `crate::*`
[INFO] [stdout]    --> tests/zipper.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     use crate::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> examples/simple.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Callback(&'a dyn FnMut(usize) -> String),
[INFO] [stdout]   |     -------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     Callback(&'a dyn FnMut(usize) -> String),
[INFO] [stdout] 7 +     Callback(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `there_are_2_exact_same_keys_in_the_old` is never used
[INFO] [stdout]    --> tests/diff_keyed_test.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn there_are_2_exact_same_keys_in_the_old() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `there_are_2_exact_same_keys_in_the_new` is never used
[INFO] [stdout]    --> tests/diff_keyed_test.rs:165:4
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn there_are_2_exact_same_keys_in_the_new() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `there_are_2_exact_same_keys_in_both_old_and_new` is never used
[INFO] [stdout]    --> tests/diff_keyed_test.rs:208:4
[INFO] [stdout]     |
[INFO] [stdout] 208 | fn there_are_2_exact_same_keys_in_both_old_and_new() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `Command { std: "docker" "inspect" "6fc958daf902b41db14be61a615611c4d78d5144f739370b16a2ac2dbb04f2f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc958daf902b41db14be61a615611c4d78d5144f739370b16a2ac2dbb04f2f3", kill_on_drop: false }`
[INFO] [stdout] 6fc958daf902b41db14be61a615611c4d78d5144f739370b16a2ac2dbb04f2f3