[INFO] updating cached repository liamzdenek/caption-reading-speed
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/liamzdenek/caption-reading-speed
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/liamzdenek/caption-reading-speed" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/liamzdenek/caption-reading-speed"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/liamzdenek/caption-reading-speed'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/liamzdenek/caption-reading-speed" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/liamzdenek/caption-reading-speed"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/liamzdenek/caption-reading-speed'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a84e8e9d30011f974c05356b289bede388dde9b0
[INFO] sha for GitHub repo liamzdenek/caption-reading-speed: a84e8e9d30011f974c05356b289bede388dde9b0
[INFO] validating manifest of liamzdenek/caption-reading-speed on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of liamzdenek/caption-reading-speed on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing liamzdenek/caption-reading-speed
[INFO] finished frobbing liamzdenek/caption-reading-speed
[INFO] frobbed toml for liamzdenek/caption-reading-speed written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/liamzdenek/caption-reading-speed/Cargo.toml
[INFO] started frobbing liamzdenek/caption-reading-speed
[INFO] finished frobbing liamzdenek/caption-reading-speed
[INFO] frobbed toml for liamzdenek/caption-reading-speed written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/liamzdenek/caption-reading-speed/Cargo.toml
[INFO] crate liamzdenek/caption-reading-speed already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking liamzdenek/caption-reading-speed against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/liamzdenek/caption-reading-speed:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ccfdc393b950010aab0a3e00f1ed8cd58721849bc8dfa3ea2438b8c923c64063
[INFO] running `"docker" "start" "-a" "ccfdc393b950010aab0a3e00f1ed8cd58721849bc8dfa3ea2438b8c923c64063"`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking backtrace v0.3.26
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling derive_builder_core v0.4.1
[INFO] [stderr]    Compiling derive_builder v0.7.1
[INFO] [stderr]     Checking reading-speed v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:6
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut file = File::open(filename)?;
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:25:6
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut buf_reader = BufReader::new(file);
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `encode`
[INFO] [stderr]    --> src/main.rs:103:2
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn encode() -> Result<String, Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `duration_float` has been stable since 1.38.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(duration_float)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `startTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     startTime: Duration,
[INFO] [stderr]     |     ^^^^^^^^^ help: convert the identifier to snake case: `start_time`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `endTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:112:2
[INFO] [stderr]     |
[INFO] [stderr] 112 |     endTime: Duration,
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to snake case: `end_time`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `startTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     startTime: Duration,
[INFO] [stderr]     |     ^^^^^^^^^ help: convert the identifier to snake case: `start_time`
[INFO] [stderr] 
[INFO] [stderr] warning: method `startTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     startTime: Duration,
[INFO] [stderr]     |     ^^^^^^^^^ help: convert the identifier to snake case: `start_time`
[INFO] [stderr] 
[INFO] [stderr] warning: method `endTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:112:2
[INFO] [stderr]     |
[INFO] [stderr] 112 |     endTime: Duration,
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to snake case: `end_time`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:6
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut file = File::open(filename)?;
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:25:6
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut buf_reader = BufReader::new(file);
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `encode`
[INFO] [stderr]    --> src/main.rs:103:2
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn encode() -> Result<String, Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `duration_float` has been stable since 1.38.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(duration_float)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `startTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     startTime: Duration,
[INFO] [stderr]     |     ^^^^^^^^^ help: convert the identifier to snake case: `start_time`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `endTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:112:2
[INFO] [stderr]     |
[INFO] [stderr] 112 |     endTime: Duration,
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to snake case: `end_time`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `startTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     startTime: Duration,
[INFO] [stderr]     |     ^^^^^^^^^ help: convert the identifier to snake case: `start_time`
[INFO] [stderr] 
[INFO] [stderr] warning: method `startTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     startTime: Duration,
[INFO] [stderr]     |     ^^^^^^^^^ help: convert the identifier to snake case: `start_time`
[INFO] [stderr] 
[INFO] [stderr] warning: method `endTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:112:2
[INFO] [stderr]     |
[INFO] [stderr] 112 |     endTime: Duration,
[INFO] [stderr]     |     ^^^^^^^ help: convert the identifier to snake case: `end_time`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.60s
[INFO] running `"docker" "inspect" "ccfdc393b950010aab0a3e00f1ed8cd58721849bc8dfa3ea2438b8c923c64063"`
[INFO] running `"docker" "rm" "-f" "ccfdc393b950010aab0a3e00f1ed8cd58721849bc8dfa3ea2438b8c923c64063"`
[INFO] [stdout] ccfdc393b950010aab0a3e00f1ed8cd58721849bc8dfa3ea2438b8c923c64063