[INFO] fetching crate vcsr 0.4.0...
[INFO] testing vcsr-0.4.0 against 1.57.0 for beta-1.58-1
[INFO] extracting crate vcsr 0.4.0 into /workspace/builds/worker-58/source
[INFO] validating manifest of crates.io crate vcsr 0.4.0 on toolchain 1.57.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.57.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vcsr 0.4.0
[INFO] finished tweaking crates.io crate vcsr 0.4.0
[INFO] tweaked toml for crates.io crate vcsr 0.4.0 written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] crate crates.io crate vcsr 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.57.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+1.57.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f781c457e19e3271001606a41095a0dd7cd7cf65cc09ab66a33f776d0b4386c9
[INFO] running `Command { std: "docker" "start" "-a" "f781c457e19e3271001606a41095a0dd7cd7cf65cc09ab66a33f776d0b4386c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f781c457e19e3271001606a41095a0dd7cd7cf65cc09ab66a33f776d0b4386c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f781c457e19e3271001606a41095a0dd7cd7cf65cc09ab66a33f776d0b4386c9", kill_on_drop: false }`
[INFO] [stdout] f781c457e19e3271001606a41095a0dd7cd7cf65cc09ab66a33f776d0b4386c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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=warn" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+1.57.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d5d4f830ece094ac447fb5edbd65c911d5f30149d012dd7a9cb7b24b962577
[INFO] running `Command { std: "docker" "start" "-a" "83d5d4f830ece094ac447fb5edbd65c911d5f30149d012dd7a9cb7b24b962577", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.62
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[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]    Compiling owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling chrono v0.4.8
[INFO] [stderr]    Compiling rusttype v0.9.2
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[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rustfft v3.0.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling console v0.8.0
[INFO] [stderr]    Compiling flexi_logger v0.14.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling indicatif v0.11.0
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.3.0
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling dotenv v0.14.1
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling structopt v0.3.0
[INFO] [stderr]    Compiling imageproc v0.22.0
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling vcsr v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/operations.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let _ = &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.35s
[INFO] running `Command { std: "docker" "inspect" "83d5d4f830ece094ac447fb5edbd65c911d5f30149d012dd7a9cb7b24b962577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d5d4f830ece094ac447fb5edbd65c911d5f30149d012dd7a9cb7b24b962577", kill_on_drop: false }`
[INFO] [stdout] 83d5d4f830ece094ac447fb5edbd65c911d5f30149d012dd7a9cb7b24b962577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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=warn" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+1.57.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e5048bce7bcff1dd0fb6af5437cc9060a2d475babbe5451279ff063f7d9a282
[INFO] running `Command { std: "docker" "start" "-a" "9e5048bce7bcff1dd0fb6af5437cc9060a2d475babbe5451279ff063f7d9a282", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcsr v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/operations.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let _ = &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/operations.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let _ = &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "9e5048bce7bcff1dd0fb6af5437cc9060a2d475babbe5451279ff063f7d9a282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5048bce7bcff1dd0fb6af5437cc9060a2d475babbe5451279ff063f7d9a282", kill_on_drop: false }`
[INFO] [stdout] 9e5048bce7bcff1dd0fb6af5437cc9060a2d475babbe5451279ff063f7d9a282
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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=warn" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+1.57.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2075128729f8d469e0157f212fbaf57c76609d478776b38f0270c7ebe3c0567f
[INFO] running `Command { std: "docker" "start" "-a" "2075128729f8d469e0157f212fbaf57c76609d478776b38f0270c7ebe3c0567f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/operations.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 124 |     let _ = &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `vcsr` (lib) generated 1 warning
[INFO] [stderr] warning: `vcsr` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vcsr-959631011c8ce749)
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vcsr-0d66140da3a7986b)
[INFO] [stdout] test models::tests::grid_from_invalid_string_characters ... ok
[INFO] [stdout] test models::tests::grid_from_invalid_string_length ... ok
[INFO] [stdout] test models::tests::grid_from_string ... ok
[INFO] [stdout] test models::tests::test_human_readable_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vcsr
[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; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2075128729f8d469e0157f212fbaf57c76609d478776b38f0270c7ebe3c0567f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2075128729f8d469e0157f212fbaf57c76609d478776b38f0270c7ebe3c0567f", kill_on_drop: false }`
[INFO] [stdout] 2075128729f8d469e0157f212fbaf57c76609d478776b38f0270c7ebe3c0567f