[INFO] updating cached repository xmarcux/mos [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/xmarcux/mos [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/xmarcux/mos" "work/ex/beta-1.38-1/sources/1.37.0/gh/xmarcux/mos"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/xmarcux/mos'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/xmarcux/mos" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xmarcux/mos"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xmarcux/mos'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4f976fc7b1db218ed047cccbd161003812b478b2 [INFO] sha for GitHub repo xmarcux/mos: 4f976fc7b1db218ed047cccbd161003812b478b2 [INFO] validating manifest of xmarcux/mos 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 xmarcux/mos 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 xmarcux/mos [INFO] finished frobbing xmarcux/mos [INFO] frobbed toml for xmarcux/mos written to work/ex/beta-1.38-1/sources/1.37.0/gh/xmarcux/mos/Cargo.toml [INFO] started frobbing xmarcux/mos [INFO] finished frobbing xmarcux/mos [INFO] frobbed toml for xmarcux/mos written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xmarcux/mos/Cargo.toml [INFO] crate xmarcux/mos 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 xmarcux/mos against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xmarcux/mos:/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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 6f1c403d36ae3f522459bae2cc3caea519e0b4754e7e5e8419322a12f0a9c7fa [INFO] running `"docker" "start" "-a" "6f1c403d36ae3f522459bae2cc3caea519e0b4754e7e5e8419322a12f0a9c7fa"` [INFO] [stderr] Compiling mos v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/user.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut s_avail: &str; [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: variant is never constructed: `Busy` [INFO] [stderr] --> src/user.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | Busy, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `VideoConference` [INFO] [stderr] --> src/user.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | VideoConference, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `OnThePhone` [INFO] [stderr] --> src/user.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | OnThePhone, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `OutOfOffice` [INFO] [stderr] --> src/user.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | OutOfOffice, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `DoNotDesturb` [INFO] [stderr] --> src/user.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | DoNotDesturb, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from_frm_str` [INFO] [stderr] --> src/user.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | pub fn from_frm_str(frm_str: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:51:5 [INFO] [stderr] | [INFO] [stderr] 51 | std::io::stdin().read_line(&mut u.nickname); [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:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | std::io::stdin().read_line(&mut u.name); [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:59:5 [INFO] [stderr] | [INFO] [stderr] 59 | std::io::stdin().read_line(&mut u.surname); [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:63:5 [INFO] [stderr] | [INFO] [stderr] 63 | std::io::stdin().read_line(&mut u.profession); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.57s [INFO] running `"docker" "inspect" "6f1c403d36ae3f522459bae2cc3caea519e0b4754e7e5e8419322a12f0a9c7fa"` [INFO] running `"docker" "rm" "-f" "6f1c403d36ae3f522459bae2cc3caea519e0b4754e7e5e8419322a12f0a9c7fa"` [INFO] [stdout] 6f1c403d36ae3f522459bae2cc3caea519e0b4754e7e5e8419322a12f0a9c7fa [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xmarcux/mos:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] 0bdd87d910397e4acc92ec2850f6bb26667dfd2dc71584bdc11a6bdaf99d9800 [INFO] running `"docker" "start" "-a" "0bdd87d910397e4acc92ec2850f6bb26667dfd2dc71584bdc11a6bdaf99d9800"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling mos v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/user.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut s_avail: &str; [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: variant is never constructed: `Busy` [INFO] [stderr] --> src/user.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | Busy, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `VideoConference` [INFO] [stderr] --> src/user.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | VideoConference, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `OnThePhone` [INFO] [stderr] --> src/user.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | OnThePhone, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `OutOfOffice` [INFO] [stderr] --> src/user.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | OutOfOffice, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `DoNotDesturb` [INFO] [stderr] --> src/user.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | DoNotDesturb, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from_frm_str` [INFO] [stderr] --> src/user.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | pub fn from_frm_str(frm_str: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:51:5 [INFO] [stderr] | [INFO] [stderr] 51 | std::io::stdin().read_line(&mut u.nickname); [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:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | std::io::stdin().read_line(&mut u.name); [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:59:5 [INFO] [stderr] | [INFO] [stderr] 59 | std::io::stdin().read_line(&mut u.surname); [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:63:5 [INFO] [stderr] | [INFO] [stderr] 63 | std::io::stdin().read_line(&mut u.profession); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `"docker" "inspect" "0bdd87d910397e4acc92ec2850f6bb26667dfd2dc71584bdc11a6bdaf99d9800"` [INFO] running `"docker" "rm" "-f" "0bdd87d910397e4acc92ec2850f6bb26667dfd2dc71584bdc11a6bdaf99d9800"` [INFO] [stdout] 0bdd87d910397e4acc92ec2850f6bb26667dfd2dc71584bdc11a6bdaf99d9800 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xmarcux/mos:/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" "+beta-2019-08-13" "test" "--frozen"` [INFO] [stdout] 3f91f1b7c7789601119cb29239d80f8dd00e23be0e173ff207c98ea9c9250eb0 [INFO] running `"docker" "start" "-a" "3f91f1b7c7789601119cb29239d80f8dd00e23be0e173ff207c98ea9c9250eb0"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/mos-b4828735203e652f [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" "3f91f1b7c7789601119cb29239d80f8dd00e23be0e173ff207c98ea9c9250eb0"` [INFO] running `"docker" "rm" "-f" "3f91f1b7c7789601119cb29239d80f8dd00e23be0e173ff207c98ea9c9250eb0"` [INFO] [stdout] 3f91f1b7c7789601119cb29239d80f8dd00e23be0e173ff207c98ea9c9250eb0