[INFO] cloning repository https://github.com/jdmichaud/json2csv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jdmichaud/json2csv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Fjson2csv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Fjson2csv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a06b88df068d418db2c23ae8e9aae27958e5774
[INFO] checking jdmichaud/json2csv 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%2Fjdmichaud%2Fjson2csv" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jdmichaud/json2csv
[INFO] finished tweaking git repo https://github.com/jdmichaud/json2csv
[INFO] tweaked toml for git repo https://github.com/jdmichaud/json2csv written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jdmichaud/json2csv 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/jdmichaud/json2csv 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] [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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c1c780c30f1d9a2ea604ceb06fe2612448af00222859dde3ff8b61bc40820ddb
[INFO] running `Command { std: "docker" "start" "-a" "c1c780c30f1d9a2ea604ceb06fe2612448af00222859dde3ff8b61bc40820ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1c780c30f1d9a2ea604ceb06fe2612448af00222859dde3ff8b61bc40820ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1c780c30f1d9a2ea604ceb06fe2612448af00222859dde3ff8b61bc40820ddb", kill_on_drop: false }`
[INFO] [stdout] c1c780c30f1d9a2ea604ceb06fe2612448af00222859dde3ff8b61bc40820ddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 80689e5da4ed6c5257712d95ce13a911b82f034def457e6dc3a3d1714d3e2128
[INFO] running `Command { std: "docker" "start" "-a" "80689e5da4ed6c5257712d95ce13a911b82f034def457e6dc3a3d1714d3e2128", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling syn v1.0.27
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking json2csv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Cursor, BufRead, stdin};
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | /   /// The keys to extract from the json objects to the csv line.
[INFO] [stdout] 11 | |   /// If not provided, use keys of the first object. (ex: -k id,name,address)
[INFO] [stdout] 12 | |   #[structopt(short="k", long, multiple=true, value_delimiter=",")]
[INFO] [stdout] 13 | |   include_keys: Option<Vec<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/main.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | /   /// Exclude keys. (ex: -e confidential_key)
[INFO] [stdout] 15 | |   #[structopt(short="e", long, multiple=true, value_delimiter=",")]
[INFO] [stdout] 16 | |   exclude_keys: Option<Vec<String>>,
[INFO] [stdout]    | |___________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 | /   /// Separator
[INFO] [stdout] 18 | |   #[structopt(short, long, default_value=",")]
[INFO] [stdout] 19 | |   separator: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | /   /// The keys to extract from the json objects to the csv line.
[INFO] [stdout] 11 | |   /// If not provided, use keys of the first object. (ex: -k id,name,address)
[INFO] [stdout] 12 | |   #[structopt(short="k", long, multiple=true, value_delimiter=",")]
[INFO] [stdout] 13 | |   include_keys: Option<Vec<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/main.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | /   /// Exclude keys. (ex: -e confidential_key)
[INFO] [stdout] 15 | |   #[structopt(short="e", long, multiple=true, value_delimiter=",")]
[INFO] [stdout] 16 | |   exclude_keys: Option<Vec<String>>,
[INFO] [stdout]    | |___________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 | /   /// Separator
[INFO] [stdout] 18 | |   #[structopt(short, long, default_value=",")]
[INFO] [stdout] 19 | |   separator: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json2csv` (bin "json2csv") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `json2csv` (bin "json2csv" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "80689e5da4ed6c5257712d95ce13a911b82f034def457e6dc3a3d1714d3e2128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80689e5da4ed6c5257712d95ce13a911b82f034def457e6dc3a3d1714d3e2128", kill_on_drop: false }`
[INFO] [stdout] 80689e5da4ed6c5257712d95ce13a911b82f034def457e6dc3a3d1714d3e2128
