[INFO] fetching crate k12sum 0.1.5...
[INFO] checking k12sum-0.1.5 against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] extracting crate k12sum 0.1.5 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate k12sum 0.1.5 on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate k12sum 0.1.5
[INFO] finished tweaking crates.io crate k12sum 0.1.5
[INFO] tweaked toml for crates.io crate k12sum 0.1.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate k12sum 0.1.5 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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b066723ef6bf4b933fb507dd24d80c8307200cc644adb0d3f860b424ae3a6719
[INFO] running `Command { std: "docker" "start" "-a" "b066723ef6bf4b933fb507dd24d80c8307200cc644adb0d3f860b424ae3a6719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b066723ef6bf4b933fb507dd24d80c8307200cc644adb0d3f860b424ae3a6719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b066723ef6bf4b933fb507dd24d80c8307200cc644adb0d3f860b424ae3a6719", kill_on_drop: false }`
[INFO] [stdout] b066723ef6bf4b933fb507dd24d80c8307200cc644adb0d3f860b424ae3a6719
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f38882197b128bf939ee9d71b84d1c9ffbf69e9adfa1d7b1dd4ae2b12c44c9e0
[INFO] running `Command { std: "docker" "start" "-a" "f38882197b128bf939ee9d71b84d1c9ffbf69e9adfa1d7b1dd4ae2b12c44c9e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking wild v2.1.0
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_child v0.3.5
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking duct v0.13.5
[INFO] [stderr]    Compiling kangarootwelve_xkcp v0.1.5
[INFO] [stderr]     Checking k12sum v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/main.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |         file_string.clone().into()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/main.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |         file_string.clone().into()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `k12sum` (bin "k12sum") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `k12sum` (bin "k12sum" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f38882197b128bf939ee9d71b84d1c9ffbf69e9adfa1d7b1dd4ae2b12c44c9e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f38882197b128bf939ee9d71b84d1c9ffbf69e9adfa1d7b1dd4ae2b12c44c9e0", kill_on_drop: false }`
[INFO] [stdout] f38882197b128bf939ee9d71b84d1c9ffbf69e9adfa1d7b1dd4ae2b12c44c9e0