[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/beta-1.38-1/sources/1.37.0/gh/UgnilJoZ/rust-pv"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/UgnilJoZ/rust-pv'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/UgnilJoZ/rust-pv" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/UgnilJoZ/rust-pv"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of UgnilJoZ/rust-pv on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/gh/UgnilJoZ/rust-pv/Cargo.toml [INFO] crate UgnilJoZ/rust-pv already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing UgnilJoZ/rust-pv against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/UgnilJoZ/rust-pv:/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=warn" "-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] b30cf1dd99a052ec0a74eb6cdefb4b7d9f048e9473b71da7e6f6f293b6052198 [INFO] running `"docker" "start" "-a" "b30cf1dd99a052ec0a74eb6cdefb4b7d9f048e9473b71da7e6f6f293b6052198"` [INFO] [stderr] Compiling 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] Finished dev [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `"docker" "inspect" "b30cf1dd99a052ec0a74eb6cdefb4b7d9f048e9473b71da7e6f6f293b6052198"` [INFO] running `"docker" "rm" "-f" "b30cf1dd99a052ec0a74eb6cdefb4b7d9f048e9473b71da7e6f6f293b6052198"` [INFO] [stdout] b30cf1dd99a052ec0a74eb6cdefb4b7d9f048e9473b71da7e6f6f293b6052198 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/UgnilJoZ/rust-pv:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] ab4fe9eaba51afc0043662215d31e608c33a8121c05d92289ead980e23ba6280 [INFO] running `"docker" "start" "-a" "ab4fe9eaba51afc0043662215d31e608c33a8121c05d92289ead980e23ba6280"` [INFO] [stderr] Compiling 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] Finished dev [unoptimized + debuginfo] target(s) in 0.42s [INFO] running `"docker" "inspect" "ab4fe9eaba51afc0043662215d31e608c33a8121c05d92289ead980e23ba6280"` [INFO] running `"docker" "rm" "-f" "ab4fe9eaba51afc0043662215d31e608c33a8121c05d92289ead980e23ba6280"` [INFO] [stdout] ab4fe9eaba51afc0043662215d31e608c33a8121c05d92289ead980e23ba6280 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/UgnilJoZ/rust-pv:/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=warn" "-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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 51f1c984cc3f3447d5e47bdfb80d868f3235edf17619785699e489c085f478cc [INFO] running `"docker" "start" "-a" "51f1c984cc3f3447d5e47bdfb80d868f3235edf17619785699e489c085f478cc"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/pv-6c77d9432e47a0f6 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "51f1c984cc3f3447d5e47bdfb80d868f3235edf17619785699e489c085f478cc"` [INFO] running `"docker" "rm" "-f" "51f1c984cc3f3447d5e47bdfb80d868f3235edf17619785699e489c085f478cc"` [INFO] [stdout] 51f1c984cc3f3447d5e47bdfb80d868f3235edf17619785699e489c085f478cc