[INFO] fetching crate gfa-reader 0.1.4...
[INFO] checking gfa-reader-0.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate gfa-reader 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate gfa-reader 0.1.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate gfa-reader 0.1.4
[INFO] tweaked toml for crates.io crate gfa-reader 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gfa-reader 0.1.4 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 75 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4c67ba5c3adb76aa89b7b02218be1655a47e55fdaac66f765b3ec8c758ac1d6
[INFO] running `Command { std: "docker" "start" "-a" "d4c67ba5c3adb76aa89b7b02218be1655a47e55fdaac66f765b3ec8c758ac1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4c67ba5c3adb76aa89b7b02218be1655a47e55fdaac66f765b3ec8c758ac1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c67ba5c3adb76aa89b7b02218be1655a47e55fdaac66f765b3ec8c758ac1d6", kill_on_drop: false }`
[INFO] [stdout] d4c67ba5c3adb76aa89b7b02218be1655a47e55fdaac66f765b3ec8c758ac1d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cd9b9b86e15cb55c53305f030e00146045a40e288c7e11d6169ff2bb84ddef2
[INFO] running `Command { std: "docker" "start" "-a" "6cd9b9b86e15cb55c53305f030e00146045a40e288c7e11d6169ff2bb84ddef2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking gfa-reader v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:660:36
[INFO] [stdout]     |
[INFO] [stdout] 660 |                         let name = a.next().unwrap().parse().unwrap();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:662:52
[INFO] [stdout]     |
[INFO] [stdout] 662 | ...                   let sequence: String = a.next().unwrap().parse().unwrap();
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:666:52
[INFO] [stdout]     |
[INFO] [stdout] 666 | ...                   let sequence: String = a.next().unwrap().parse().unwrap();
[INFO] [stdout]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:678:85
[INFO] [stdout]     |
[INFO] [stdout] 678 |                         let node_id: Vec<String> = line_split[2].split(",").map(|d| d[..d.len() - 1].parse().unwrap()).collect();
[INFO] [stdout]     |                                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:681:72
[INFO] [stdout]     |
[INFO] [stdout] 681 | ...                   overlap = line_split[3].split(",").map(|d| d.parse().unwrap()).collect();
[INFO] [stdout]     |                                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:717:76
[INFO] [stdout]     |
[INFO] [stdout] 717 |                         let node_id: Vec<String> = walk.split(",").map(|d| d[..d.len() - 1].parse().unwrap()).collect();
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:754:52
[INFO] [stdout]     |
[INFO] [stdout] 754 |                         let source_begin: String = a.next().unwrap().parse().unwrap();
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:758:43
[INFO] [stdout]     |
[INFO] [stdout] 758 |                         let  s2: String = a.next().unwrap().parse().unwrap();
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:762:43
[INFO] [stdout]     |
[INFO] [stdout] 762 |                         let  s3: String = a.next().unwrap().parse().unwrap();
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:766:42
[INFO] [stdout]     |
[INFO] [stdout] 766 |                         let s4: String = a.next().unwrap().parse().unwrap();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/lib.rs:1052:91
[INFO] [stdout]      |
[INFO] [stdout] 1052 | ...   nodes.push(NCNode { id: a.next().unwrap().parse().unwrap(), seq:  a.next().unwrap().parse().unwrap(), opt: T::parse(a) });
[INFO] [stdout]      |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/lib.rs:1063:72
[INFO] [stdout]      |
[INFO] [stdout] 1063 | ...                   overlap = line_split[3].split(",").map(|d| d.parse().unwrap()).collect();
[INFO] [stdout]      |                                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gfa-reader` (lib) due to 12 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6cd9b9b86e15cb55c53305f030e00146045a40e288c7e11d6169ff2bb84ddef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd9b9b86e15cb55c53305f030e00146045a40e288c7e11d6169ff2bb84ddef2", kill_on_drop: false }`
[INFO] [stdout] 6cd9b9b86e15cb55c53305f030e00146045a40e288c7e11d6169ff2bb84ddef2