[INFO] updating cached repository UgnilJoZ/rust-pv [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/UgnilJoZ/rust-pv [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/UgnilJoZ/rust-pv" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/UgnilJoZ/rust-pv"` [INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/UgnilJoZ/rust-pv'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/UgnilJoZ/rust-pv" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/UgnilJoZ/rust-pv"` [INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/UgnilJoZ/rust-pv'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e166e54f5b869ac48c661d727462e85a183554d6 [INFO] sha for GitHub repo UgnilJoZ/rust-pv: e166e54f5b869ac48c661d727462e85a183554d6 [INFO] validating manifest of UgnilJoZ/rust-pv on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of UgnilJoZ/rust-pv on toolchain try#f45cc3094ee337acd688771b9234318046b0572d [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing UgnilJoZ/rust-pv [INFO] finished frobbing UgnilJoZ/rust-pv [INFO] frobbed toml for UgnilJoZ/rust-pv written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/UgnilJoZ/rust-pv/Cargo.toml [INFO] started frobbing UgnilJoZ/rust-pv [INFO] finished frobbing UgnilJoZ/rust-pv [INFO] frobbed toml for UgnilJoZ/rust-pv written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/UgnilJoZ/rust-pv/Cargo.toml [INFO] crate UgnilJoZ/rust-pv already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking UgnilJoZ/rust-pv against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-7/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/UgnilJoZ/rust-pv:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c31a38211d105af158734622d67fe80d1fe650a498936599ef6a468d9e9a7a8e [INFO] running `"docker" "start" "-a" "c31a38211d105af158734622d67fe80d1fe650a498936599ef6a468d9e9a7a8e"` [INFO] [stderr] Checking pv v0.3.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Stdio` [INFO] [stderr] --> src/main.rs:8:28 [INFO] [stderr] | [INFO] [stderr] 8 | use std::process::{Command,Stdio,exit}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `fs` [INFO] [stderr] --> src/main.rs:10:31 [INFO] [stderr] | [INFO] [stderr] 10 | use std::{thread,time,cmp,env,fs}; [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/main.rs:68:48 [INFO] [stderr] | [INFO] [stderr] 68 | fn read_bytes(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc>, end_of_file: Arc>) { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_size` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/main.rs:76:51 [INFO] [stderr] | [INFO] [stderr] 76 | fn read_lines(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc>, end_of_file: Arc>) { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_size` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `prog` [INFO] [stderr] --> src/main.rs:88:6 [INFO] [stderr] | [INFO] [stderr] 88 | let prog = args[0].clone(); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_prog` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:109:8 [INFO] [stderr] | [INFO] [stderr] 109 | let mut f = File::open(filename).unwrap(); [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:142:7 [INFO] [stderr] | [INFO] [stderr] 142 | let mut file = File::open(filename).unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:149:7 [INFO] [stderr] | [INFO] [stderr] 149 | let mut file = io::stdin(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:36:2 [INFO] [stderr] | [INFO] [stderr] 36 | io::stderr().write(sequence.as_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:37:2 [INFO] [stderr] | [INFO] [stderr] 37 | io::stderr().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:43:2 [INFO] [stderr] | [INFO] [stderr] 43 | io::stderr().write(sequence.as_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:44:2 [INFO] [stderr] | [INFO] [stderr] 44 | io::stderr().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:161:2 [INFO] [stderr] | [INFO] [stderr] 161 | write!(io::stderr(), "\n{} {}.\n", *bytes_read.lock().unwrap(), unit); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused import: `Stdio` [INFO] [stderr] --> src/main.rs:8:28 [INFO] [stderr] | [INFO] [stderr] 8 | use std::process::{Command,Stdio,exit}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `fs` [INFO] [stderr] --> src/main.rs:10:31 [INFO] [stderr] | [INFO] [stderr] 10 | use std::{thread,time,cmp,env,fs}; [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/main.rs:68:48 [INFO] [stderr] | [INFO] [stderr] 68 | fn read_bytes(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc>, end_of_file: Arc>) { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_size` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `size` [INFO] [stderr] --> src/main.rs:76:51 [INFO] [stderr] | [INFO] [stderr] 76 | fn read_lines(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc>, end_of_file: Arc>) { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_size` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `prog` [INFO] [stderr] --> src/main.rs:88:6 [INFO] [stderr] | [INFO] [stderr] 88 | let prog = args[0].clone(); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_prog` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:109:8 [INFO] [stderr] | [INFO] [stderr] 109 | let mut f = File::open(filename).unwrap(); [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:142:7 [INFO] [stderr] | [INFO] [stderr] 142 | let mut file = File::open(filename).unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:149:7 [INFO] [stderr] | [INFO] [stderr] 149 | let mut file = io::stdin(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:36:2 [INFO] [stderr] | [INFO] [stderr] 36 | io::stderr().write(sequence.as_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:37:2 [INFO] [stderr] | [INFO] [stderr] 37 | io::stderr().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:43:2 [INFO] [stderr] | [INFO] [stderr] 43 | io::stderr().write(sequence.as_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:44:2 [INFO] [stderr] | [INFO] [stderr] 44 | io::stderr().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:161:2 [INFO] [stderr] | [INFO] [stderr] 161 | write!(io::stderr(), "\n{} {}.\n", *bytes_read.lock().unwrap(), unit); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `"docker" "inspect" "c31a38211d105af158734622d67fe80d1fe650a498936599ef6a468d9e9a7a8e"` [INFO] running `"docker" "rm" "-f" "c31a38211d105af158734622d67fe80d1fe650a498936599ef6a468d9e9a7a8e"` [INFO] [stdout] c31a38211d105af158734622d67fe80d1fe650a498936599ef6a468d9e9a7a8e