[INFO] fetching crate pipr 0.0.16...
[INFO] checking pipr-0.0.16 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate pipr 0.0.16 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate pipr 0.0.16 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pipr 0.0.16
[INFO] finished tweaking crates.io crate pipr 0.0.16
[INFO] tweaked toml for crates.io crate pipr 0.0.16 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate pipr 0.0.16 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plist v1.2.1
[INFO] [stderr]   Downloaded tui v0.10.0
[INFO] [stderr]   Downloaded which v4.2.2
[INFO] [stderr]   Downloaded ansi-parser v0.6.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e12b1b5f7577b4a7d3542fe83143d2e1f2a106213ee20671bd684e73e265868
[INFO] running `Command { std: "docker" "start" "-a" "7e12b1b5f7577b4a7d3542fe83143d2e1f2a106213ee20671bd684e73e265868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e12b1b5f7577b4a7d3542fe83143d2e1f2a106213ee20671bd684e73e265868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e12b1b5f7577b4a7d3542fe83143d2e1f2a106213ee20671bd684e73e265868", kill_on_drop: false }`
[INFO] [stdout] 7e12b1b5f7577b4a7d3542fe83143d2e1f2a106213ee20671bd684e73e265868
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 320f718cc7955c2474cd1c81497f47a3dd82d76cee93abecfa31ed7329e1e582
[INFO] running `Command { std: "docker" "start" "-a" "320f718cc7955c2474cd1c81497f47a3dd82d76cee93abecfa31ed7329e1e582", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]    Compiling onig_sys v69.7.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking plist v1.2.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking ansi-parser v0.6.5
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking which v4.2.2
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking onig v6.3.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking syntect v4.6.0
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking tui v0.10.0
[INFO] [stderr]     Checking pipr v0.0.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]  --> src/command_evaluation.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::io::{self, AsyncBufReadExt};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 6 | use tokio::prelude::*;
[INFO] [stdout]   |     ----------------- the item `io` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `EnterAlternateScreen` is imported redundantly
[INFO] [stdout]  --> src/ui.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::app::*;
[INFO] [stdout]   |     ------------- the item `EnterAlternateScreen` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     terminal::{EnterAlternateScreen, LeaveAlternateScreen},
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `LeaveAlternateScreen` is imported redundantly
[INFO] [stdout]  --> src/ui.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::app::*;
[INFO] [stdout]   |     ------------- the item `LeaveAlternateScreen` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     terminal::{EnterAlternateScreen, LeaveAlternateScreen},
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]   --> src/ui.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::app::*;
[INFO] [stdout]    |     ------------- the item `io` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     io::{self, Write},
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]   --> src/ui.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::app::*;
[INFO] [stdout]    |     ------------- the item `Write` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     io::{self, Write},
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Terminal` is imported redundantly
[INFO] [stdout]   --> src/ui.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::app::*;
[INFO] [stdout]    |     ------------- the item `Terminal` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Frame, Terminal,
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]  --> src/command_evaluation.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::io::{self, AsyncBufReadExt};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 6 | use tokio::prelude::*;
[INFO] [stdout]   |     ----------------- the item `io` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `EnterAlternateScreen` is imported redundantly
[INFO] [stdout]  --> src/ui.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::app::*;
[INFO] [stdout]   |     ------------- the item `EnterAlternateScreen` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     terminal::{EnterAlternateScreen, LeaveAlternateScreen},
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `LeaveAlternateScreen` is imported redundantly
[INFO] [stdout]  --> src/ui.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::app::*;
[INFO] [stdout]   |     ------------- the item `LeaveAlternateScreen` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     terminal::{EnterAlternateScreen, LeaveAlternateScreen},
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]   --> src/ui.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::app::*;
[INFO] [stdout]    |     ------------- the item `io` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     io::{self, Write},
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]   --> src/ui.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::app::*;
[INFO] [stdout]    |     ------------- the item `Write` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 |     io::{self, Write},
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Terminal` is imported redundantly
[INFO] [stdout]   --> src/ui.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 2  | use crate::app::*;
[INFO] [stdout]    |     ------------- the item `Terminal` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Frame, Terminal,
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.44s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "320f718cc7955c2474cd1c81497f47a3dd82d76cee93abecfa31ed7329e1e582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320f718cc7955c2474cd1c81497f47a3dd82d76cee93abecfa31ed7329e1e582", kill_on_drop: false }`
[INFO] [stdout] 320f718cc7955c2474cd1c81497f47a3dd82d76cee93abecfa31ed7329e1e582