[INFO] fetching crate jimaku 0.2.1...
[INFO] checking jimaku-0.2.1 against master#fc5af1813307d25a84d633f21e2e53c9376eb547 for pr-144386
[INFO] extracting crate jimaku 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate jimaku 0.2.1
[INFO] finished tweaking crates.io crate jimaku 0.2.1
[INFO] tweaked toml for crates.io crate jimaku 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate jimaku 0.2.1 on toolchain fc5af1813307d25a84d633f21e2e53c9376eb547
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate jimaku 0.2.1 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" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "fetch" "--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 ureq v2.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cbc9923678dc376f04fa57a1d921d3006fc728a50ac048ca15fce3e1af43ff6
[INFO] running `Command { std: "docker" "start" "-a" "5cbc9923678dc376f04fa57a1d921d3006fc728a50ac048ca15fce3e1af43ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cbc9923678dc376f04fa57a1d921d3006fc728a50ac048ca15fce3e1af43ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cbc9923678dc376f04fa57a1d921d3006fc728a50ac048ca15fce3e1af43ff6", kill_on_drop: false }`
[INFO] [stdout] 5cbc9923678dc376f04fa57a1d921d3006fc728a50ac048ca15fce3e1af43ff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e7b22f15efbf9a142f30925e140fdcf450a321cb1d91e0d09edb1e1e4e06f44
[INFO] running `Command { std: "docker" "start" "-a" "6e7b22f15efbf9a142f30925e140fdcf450a321cb1d91e0d09edb1e1e4e06f44", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
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[INFO] [stderr]    Compiling serde_derive v1.0.215
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[INFO] [stderr]     Checking ureq v2.10.1
[INFO] [stderr]     Checking jimaku v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `mode` is never read
[INFO] [stdout]   --> src/utils/file.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct File {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub mode: Mode,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `File` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_filename`, `get_hash`, and `download` are never used
[INFO] [stdout]   --> src/utils/file.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl File {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(filepath: PathBuf, lang: Lang, mode: Mode) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn get_filename(&self) -> &OsStr {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn get_hash(&self) -> (String, u64) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn download(&self, contents: String) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `checksum_64k` is never used
[INFO] [stdout]  --> src/utils/hash.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn checksum_64k(file: &mut fs::File, position: io::SeekFrom, buffer: &mut [u8; 64 * 1024]) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_u64` is never used
[INFO] [stdout]   --> src/utils/hash.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn to_u64(bytes: &[u8]) -> u64 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute` is never used
[INFO] [stdout]   --> src/utils/hash.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn compute(file_path: &String) -> (String, u64) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Subtitle` is never constructed
[INFO] [stdout]  --> src/utils/subtitle.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Subtitle {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `File` is never constructed
[INFO] [stdout]  --> src/utils/file.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct File {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_filename`, `get_subtitle_filename`, `get_hash`, and `download` are never used
[INFO] [stdout]   --> src/utils/file.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl File {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(filepath: PathBuf, lang: Lang, mode: Mode) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn get_filename(&self) -> &OsStr {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn get_subtitle_filename(&self) -> PathBuf {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn get_hash(&self) -> (String, u64) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn download(&self, contents: String) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `checksum_64k` is never used
[INFO] [stdout]  --> src/utils/hash.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn checksum_64k(file: &mut fs::File, position: io::SeekFrom, buffer: &mut [u8; 64 * 1024]) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_u64` is never used
[INFO] [stdout]   --> src/utils/hash.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn to_u64(bytes: &[u8]) -> u64 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute` is never used
[INFO] [stdout]   --> src/utils/hash.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn compute(file_path: &String) -> (String, u64) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lang` is never constructed
[INFO] [stdout]  --> src/utils/lang.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Lang {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Subtitle` is never constructed
[INFO] [stdout]  --> src/utils/subtitle.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Subtitle {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.58s
[INFO] running `Command { std: "docker" "inspect" "6e7b22f15efbf9a142f30925e140fdcf450a321cb1d91e0d09edb1e1e4e06f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7b22f15efbf9a142f30925e140fdcf450a321cb1d91e0d09edb1e1e4e06f44", kill_on_drop: false }`
[INFO] [stdout] 6e7b22f15efbf9a142f30925e140fdcf450a321cb1d91e0d09edb1e1e4e06f44