[INFO] fetching crate lapp 0.4.0...
[INFO] documenting lapp-0.4.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate lapp 0.4.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate lapp 0.4.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lapp 0.4.0
[INFO] finished tweaking crates.io crate lapp 0.4.0
[INFO] tweaked toml for crates.io crate lapp 0.4.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96daa4ec621ac1c615b7dd5527d1242e102caf70d05d8ab1834d6a0c7cc00b72
[INFO] running `Command { std: "docker" "start" "-a" "96daa4ec621ac1c615b7dd5527d1242e102caf70d05d8ab1834d6a0c7cc00b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96daa4ec621ac1c615b7dd5527d1242e102caf70d05d8ab1834d6a0c7cc00b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96daa4ec621ac1c615b7dd5527d1242e102caf70d05d8ab1834d6a0c7cc00b72", kill_on_drop: false }`
[INFO] [stdout] 96daa4ec621ac1c615b7dd5527d1242e102caf70d05d8ab1834d6a0c7cc00b72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 612646329afac6c5e8f5c7f73cf4cb19be16e99b8147567fad842654696fe860
[INFO] running `Command { std: "docker" "start" "-a" "612646329afac6c5e8f5c7f73cf4cb19be16e99b8147567fad842654696fe860", kill_on_drop: false }`
[INFO] [stderr]     Checking lapp v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting lapp v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:336:10
[INFO] [stdout]     |
[INFO] [stdout] 336 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/types.rs:186:43
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub fn as_infile(&self) -> Result<Box<Read>> {
[INFO] [stdout]     |                                           ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/types.rs:199:44
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn as_outfile(&self) -> Result<Box<Write>> {
[INFO] [stdout]     |                                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/flag.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub constraint: Option<Box< Fn(Value) -> Result<Value> >>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Value) -> Result<Value>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:336:10
[INFO] [stdout]     |
[INFO] [stdout] 336 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:525:63
[INFO] [stdout]     |
[INFO] [stdout] 525 |     pub fn get_infile_result(&self, name: &str) -> Result<Box<Read>> {
[INFO] [stdout]     |                                                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:530:64
[INFO] [stdout]     |
[INFO] [stdout] 530 |     pub fn get_outfile_result(&self, name: &str) -> Result<Box<Write>> {
[INFO] [stdout]     |                                                                ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:577:49
[INFO] [stdout]     |
[INFO] [stdout] 577 |     pub fn get_infile(&self, name: &str) -> Box<Read> {
[INFO] [stdout]     |                                                 ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:582:50
[INFO] [stdout]     |
[INFO] [stdout] 582 |     pub fn get_outfile(&self, name: &str) -> Box<Write> {
[INFO] [stdout]     |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]    --> src/types.rs:276:17
[INFO] [stdout]     |
[INFO] [stdout] 276 |                 env::home_dir().unwrap().join(&val[2..])
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:111:25
[INFO] [stdout]     |
[INFO] [stdout] 111 |             self.quit(e.description());
[INFO] [stdout]     |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |             self.quit(e.description());
[INFO] [stdout]     |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:168:60
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 return error(format!("{}\nat line: '{}'",e.description(),line));
[INFO] [stdout]     |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:449:35
[INFO] [stdout]     |
[INFO] [stdout] 449 |             Err(e) => self.quit(e.description())
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:483:52
[INFO] [stdout]     |
[INFO] [stdout] 483 |                     Err(e) => self.bad_flag(name,e.description())
[INFO] [stdout]     |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/types.rs:115:92
[INFO] [stdout]     |
[INFO] [stdout] 115 |                 Err(e) => Ok(Value::Error(format!("can't convert '{}' to integer - {}",s,e.description())))
[INFO] [stdout]     |                                                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/types.rs:120:90
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 Err(e) => Ok(Value::Error(format!("can't convert '{}' to float - {}",s,e.description())))
[INFO] [stdout]     |                                                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/types.rs:192:84
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     Err(e) => error(format!("can't open '{}' for reading: {}",s, e.description()))
[INFO] [stdout]     |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/types.rs:205:84
[INFO] [stdout]     |
[INFO] [stdout] 205 |                     Err(e) => error(format!("can't open '{}' for writing: {}",s, e.description()))
[INFO] [stdout]     |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:101:20
[INFO] [stdout]     |
[INFO] [stdout] 101 |             panic!(text);
[INFO] [stdout]     |                    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 101 |             panic!("{}", text);
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 101 |             std::panic::panic_any(text);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "612646329afac6c5e8f5c7f73cf4cb19be16e99b8147567fad842654696fe860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612646329afac6c5e8f5c7f73cf4cb19be16e99b8147567fad842654696fe860", kill_on_drop: false }`
[INFO] [stdout] 612646329afac6c5e8f5c7f73cf4cb19be16e99b8147567fad842654696fe860
