[INFO] cloning repository https://github.com/kruserr/cli-pdf-reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kruserr/cli-pdf-reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkruserr%2Fcli-pdf-reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkruserr%2Fcli-pdf-reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0523a2b877af9a0e70e503961c13edfe7636fa47
[INFO] checking kruserr/cli-pdf-reader 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%2Fkruserr%2Fcli-pdf-reader" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/kruserr/cli-pdf-reader
[INFO] finished tweaking git repo https://github.com/kruserr/cli-pdf-reader
[INFO] tweaked toml for git repo https://github.com/kruserr/cli-pdf-reader written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kruserr/cli-pdf-reader 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/kruserr/cli-pdf-reader 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-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] ed98948331063c15016f0bbf4a65c9b99db0280d8e0ca27c1c07630985c8a811
[INFO] running `Command { std: "docker" "start" "-a" "ed98948331063c15016f0bbf4a65c9b99db0280d8e0ca27c1c07630985c8a811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed98948331063c15016f0bbf4a65c9b99db0280d8e0ca27c1c07630985c8a811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed98948331063c15016f0bbf4a65c9b99db0280d8e0ca27c1c07630985c8a811", kill_on_drop: false }`
[INFO] [stdout] ed98948331063c15016f0bbf4a65c9b99db0280d8e0ca27c1c07630985c8a811
[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] 24f64b7d646301cc8f0457a59c92b1109b88f73a674999d4405fac5dfdb60fb7
[INFO] running `Command { std: "docker" "start" "-a" "24f64b7d646301cc8f0457a59c92b1109b88f73a674999d4405fac5dfdb60fb7", kill_on_drop: false }`
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[INFO] [stderr]     Checking cli-pdf-to-text v0.1.19 (/opt/rustwide/workdir/cli-pdf-to-text)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, !>, String>
[INFO] [stdout]  --> cli-pdf-to-text/src/main.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let file = std::env::args().nth(1).ok_or_else(|| {
[INFO] [stdout]   |  ______________^
[INFO] [stdout] 3 | |     eprintln!(
[INFO] [stdout] 4 | |       "Usage: {} <pdf_file>",
[INFO] [stdout] 5 | |       std::env::args().next().unwrap_or_else(|| "cli-pdf-to-text".to_string())
[INFO] [stdout] 6 | |     );
[INFO] [stdout] 7 | |     std::process::exit(1);
[INFO] [stdout] 8 | |   })?;
[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 `cli-pdf-to-text` (bin "cli-pdf-to-text") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, !>
[INFO] [stdout]  --> cli-pdf-to-text/src/main.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let file = std::env::args().nth(1).ok_or_else(|| {
[INFO] [stdout]   |  ______________^
[INFO] [stdout] 3 | |     eprintln!(
[INFO] [stdout] 4 | |       "Usage: {} <pdf_file>",
[INFO] [stdout] 5 | |       std::env::args().next().unwrap_or_else(|| "cli-pdf-to-text".to_string())
[INFO] [stdout] 6 | |     );
[INFO] [stdout] 7 | |     std::process::exit(1);
[INFO] [stdout] 8 | |   })?;
[INFO] [stdout]   | |____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, !>, String>
[INFO] [stdout]  --> cli-pdf-to-text/src/main.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let file = std::env::args().nth(1).ok_or_else(|| {
[INFO] [stdout]   |  ______________^
[INFO] [stdout] 3 | |     eprintln!(
[INFO] [stdout] 4 | |       "Usage: {} <pdf_file>",
[INFO] [stdout] 5 | |       std::env::args().next().unwrap_or_else(|| "cli-pdf-to-text".to_string())
[INFO] [stdout] 6 | |     );
[INFO] [stdout] 7 | |     std::process::exit(1);
[INFO] [stdout] 8 | |   })?;
[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, !>
[INFO] [stdout]  --> cli-pdf-to-text/src/main.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let file = std::env::args().nth(1).ok_or_else(|| {
[INFO] [stdout]   |  ______________^
[INFO] [stdout] 3 | |     eprintln!(
[INFO] [stdout] 4 | |       "Usage: {} <pdf_file>",
[INFO] [stdout] 5 | |       std::env::args().next().unwrap_or_else(|| "cli-pdf-to-text".to_string())
[INFO] [stdout] 6 | |     );
[INFO] [stdout] 7 | |     std::process::exit(1);
[INFO] [stdout] 8 | |   })?;
[INFO] [stdout]   | |____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cli-pdf-to-text` (bin "cli-pdf-to-text" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "24f64b7d646301cc8f0457a59c92b1109b88f73a674999d4405fac5dfdb60fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24f64b7d646301cc8f0457a59c92b1109b88f73a674999d4405fac5dfdb60fb7", kill_on_drop: false }`
[INFO] [stdout] 24f64b7d646301cc8f0457a59c92b1109b88f73a674999d4405fac5dfdb60fb7