[INFO] cloning repository https://github.com/samuelvanderwaal/taxmat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samuelvanderwaal/taxmat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuelvanderwaal%2Ftaxmat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuelvanderwaal%2Ftaxmat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bb4c33e9c43edb0347465de1efe4a68b2b200cb
[INFO] checking samuelvanderwaal/taxmat against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuelvanderwaal%2Ftaxmat" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samuelvanderwaal/taxmat
[INFO] finished tweaking git repo https://github.com/samuelvanderwaal/taxmat
[INFO] tweaked toml for git repo https://github.com/samuelvanderwaal/taxmat written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samuelvanderwaal/taxmat 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 git repo https://github.com/samuelvanderwaal/taxmat 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5431cf305f96ecd268634828d33fb0ded8376d40f4a30c20dc8512b8492fa8f3
[INFO] running `Command { std: "docker" "start" "-a" "5431cf305f96ecd268634828d33fb0ded8376d40f4a30c20dc8512b8492fa8f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5431cf305f96ecd268634828d33fb0ded8376d40f4a30c20dc8512b8492fa8f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5431cf305f96ecd268634828d33fb0ded8376d40f4a30c20dc8512b8492fa8f3", kill_on_drop: false }`
[INFO] [stdout] 5431cf305f96ecd268634828d33fb0ded8376d40f4a30c20dc8512b8492fa8f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1695b980f9155f68600d29aa4e8b94469e2437e1abfa53e33bcd0d087491329b
[INFO] running `Command { std: "docker" "start" "-a" "1695b980f9155f68600d29aa4e8b94469e2437e1abfa53e33bcd0d087491329b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking assert_cmd v1.0.4
[INFO] [stderr]     Checking taxmat v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/opt.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// input CSV format
[INFO] [stdout] 18 | |     #[structopt(short = "i", long, default_value = "subscan")]
[INFO] [stdout] 19 | |     pub input_format: 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/opt.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     /// output CSV format
[INFO] [stdout] 22 | |     #[structopt(short = "o", long, default_value = "bitcointax")]
[INFO] [stdout] 23 | |     pub output_format: String,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `taxmat` (lib) due to 2 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/opt.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// input CSV format
[INFO] [stdout] 18 | |     #[structopt(short = "i", long, default_value = "subscan")]
[INFO] [stdout] 19 | |     pub input_format: 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/opt.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     /// output CSV format
[INFO] [stdout] 22 | |     #[structopt(short = "o", long, default_value = "bitcointax")]
[INFO] [stdout] 23 | |     pub output_format: String,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `taxmat` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1695b980f9155f68600d29aa4e8b94469e2437e1abfa53e33bcd0d087491329b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1695b980f9155f68600d29aa4e8b94469e2437e1abfa53e33bcd0d087491329b", kill_on_drop: false }`
[INFO] [stdout] 1695b980f9155f68600d29aa4e8b94469e2437e1abfa53e33bcd0d087491329b