[INFO] fetching crate git_mob 0.4.1...
[INFO] checking git_mob-0.4.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate git_mob 0.4.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate git_mob 0.4.1
[INFO] finished tweaking crates.io crate git_mob 0.4.1
[INFO] tweaked toml for crates.io crate git_mob 0.4.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate git_mob 0.4.1 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] crate crates.io crate git_mob 0.4.1 already has a lockfile, it will not be regenerated
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e85a54c550b09b6c1daea11964b2435e4d4f4ba7568ef5895df70471974b65b1
[INFO] running `Command { std: "docker" "start" "-a" "e85a54c550b09b6c1daea11964b2435e4d4f4ba7568ef5895df70471974b65b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e85a54c550b09b6c1daea11964b2435e4d4f4ba7568ef5895df70471974b65b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e85a54c550b09b6c1daea11964b2435e4d4f4ba7568ef5895df70471974b65b1", kill_on_drop: false }`
[INFO] [stdout] e85a54c550b09b6c1daea11964b2435e4d4f4ba7568ef5895df70471974b65b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 97193cf03149b36344e73529dd60811dc86af116cce8e34c03a91fb6747c8281
[INFO] running `Command { std: "docker" "start" "-a" "97193cf03149b36344e73529dd60811dc86af116cce8e34c03a91fb6747c8281", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.35
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling clap_derive v3.0.0-rc.8
[INFO] [stderr]     Checking clap v3.0.0-rc.8
[INFO] [stderr]     Checking git2 v0.13.25
[INFO] [stderr]     Checking git_mob v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/git-add-coauthor.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | /     /// Co-author initials
[INFO] [stdout] 9 | |     initials: String,
[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/bin/git-add-coauthor.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// The name of the co-author, in quotes, e.g. "Foo Bar"
[INFO] [stdout] 11 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/git-add-coauthor.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The email of the co-author
[INFO] [stdout] 13 | |     email: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `git_mob` (bin "git-add-coauthor") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/git-add-coauthor.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | /     /// Co-author initials
[INFO] [stdout] 9 | |     initials: String,
[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/bin/git-add-coauthor.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// The name of the co-author, in quotes, e.g. "Foo Bar"
[INFO] [stdout] 11 | |     name: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/git-add-coauthor.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The email of the co-author
[INFO] [stdout] 13 | |     email: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `git_mob` (bin "git-add-coauthor" test) due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/git-edit-coauthor.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// Co-author initials
[INFO] [stdout] 10 | |     initials: String,
[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/bin/git-edit-coauthor.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     /// The name of the co-author, in quotes, e.g. "Foo Bar"
[INFO] [stdout] 12 | |     #[clap(long, required_unless_present("email"))]
[INFO] [stdout] 13 | |     name: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/git-edit-coauthor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// The email of the co-author
[INFO] [stdout] 15 | |     #[clap(long, required_unless_present("name"))]
[INFO] [stdout] 16 | |     email: Option<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/git-delete-coauthor.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | /     /// Initials of the co-author to delete
[INFO] [stdout] 9 | |     initials: String,
[INFO] [stdout]   | |____________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `git_mob` (bin "git-edit-coauthor" test) due to 3 previous errors
[INFO] [stderr] error: could not compile `git_mob` (bin "git-delete-coauthor") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/git-mob.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Overwrite the main author
[INFO] [stdout] 17 | |     #[clap(short, long)]
[INFO] [stdout] 18 | |     overwrite: Option<String>,
[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/bin/git-mob.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// A list of co-author initials
[INFO] [stdout] 20 | |     coauthors: Vec<String>,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `git_mob` (bin "git-mob") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "97193cf03149b36344e73529dd60811dc86af116cce8e34c03a91fb6747c8281", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97193cf03149b36344e73529dd60811dc86af116cce8e34c03a91fb6747c8281", kill_on_drop: false }`
[INFO] [stdout] 97193cf03149b36344e73529dd60811dc86af116cce8e34c03a91fb6747c8281
