[INFO] cloning repository https://github.com/hardikpnsp/text-editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hardikpnsp/text-editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhardikpnsp%2Ftext-editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhardikpnsp%2Ftext-editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f6a79c626c0fdb81008997a2fdd1ffeec350ee8
[INFO] checking hardikpnsp/text-editor against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhardikpnsp%2Ftext-editor" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hardikpnsp/text-editor on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hardikpnsp/text-editor
[INFO] finished tweaking git repo https://github.com/hardikpnsp/text-editor
[INFO] tweaked toml for git repo https://github.com/hardikpnsp/text-editor written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hardikpnsp/text-editor 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77d8cf634d54f6f8a98787e6d6501dc4ed5b83bfce6c8e6c7e2c1f76d0ebd2c6
[INFO] running `Command { std: "docker" "start" "-a" "77d8cf634d54f6f8a98787e6d6501dc4ed5b83bfce6c8e6c7e2c1f76d0ebd2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77d8cf634d54f6f8a98787e6d6501dc4ed5b83bfce6c8e6c7e2c1f76d0ebd2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77d8cf634d54f6f8a98787e6d6501dc4ed5b83bfce6c8e6c7e2c1f76d0ebd2c6", kill_on_drop: false }`
[INFO] [stdout] 77d8cf634d54f6f8a98787e6d6501dc4ed5b83bfce6c8e6c7e2c1f76d0ebd2c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03e50563c3fb6a7237b2dffdf89dfcb36499c18d9910b588f531e77aaee18846
[INFO] running `Command { std: "docker" "start" "-a" "03e50563c3fb6a7237b2dffdf89dfcb36499c18d9910b588f531e77aaee18846", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking text-editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `File` is imported redundantly
[INFO] [stdout]    --> src/buffer.rs:311:32
[INFO] [stdout]     |
[INFO] [stdout] 311 |     use std::fs::{remove_file, File};
[INFO] [stdout]     |                                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     use super::*;
[INFO] [stdout]     |         -------- the item `File` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]    --> src/buffer.rs:312:25
[INFO] [stdout]     |
[INFO] [stdout] 312 |     use std::io::{Read, Write};
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     use super::*;
[INFO] [stdout]     |         -------- the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "03e50563c3fb6a7237b2dffdf89dfcb36499c18d9910b588f531e77aaee18846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e50563c3fb6a7237b2dffdf89dfcb36499c18d9910b588f531e77aaee18846", kill_on_drop: false }`
[INFO] [stdout] 03e50563c3fb6a7237b2dffdf89dfcb36499c18d9910b588f531e77aaee18846
[INFO] checking hardikpnsp/text-editor against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhardikpnsp%2Ftext-editor" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hardikpnsp/text-editor on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hardikpnsp/text-editor
[INFO] finished tweaking git repo https://github.com/hardikpnsp/text-editor
[INFO] tweaked toml for git repo https://github.com/hardikpnsp/text-editor written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hardikpnsp/text-editor 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f40158a1adf65a34cefcad1aa472a713ee25031f255dcdd40c0f593fcb146c57
[INFO] running `Command { std: "docker" "start" "-a" "f40158a1adf65a34cefcad1aa472a713ee25031f255dcdd40c0f593fcb146c57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f40158a1adf65a34cefcad1aa472a713ee25031f255dcdd40c0f593fcb146c57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40158a1adf65a34cefcad1aa472a713ee25031f255dcdd40c0f593fcb146c57", kill_on_drop: false }`
[INFO] [stdout] f40158a1adf65a34cefcad1aa472a713ee25031f255dcdd40c0f593fcb146c57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a369f1166cb5b83feccb5e2ab3475508128501fb54b7ebc087fefa78f9cc9c9e
[INFO] running `Command { std: "docker" "start" "-a" "a369f1166cb5b83feccb5e2ab3475508128501fb54b7ebc087fefa78f9cc9c9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking text-editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `File` is imported redundantly
[INFO] [stdout]    --> src/buffer.rs:311:32
[INFO] [stdout]     |
[INFO] [stdout] 311 |     use std::fs::{remove_file, File};
[INFO] [stdout]     |                                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     use super::*;
[INFO] [stdout]     |         -------- the item `File` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]    --> src/buffer.rs:312:25
[INFO] [stdout]     |
[INFO] [stdout] 312 |     use std::io::{Read, Write};
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     use super::*;
[INFO] [stdout]     |         -------- the item `Write` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "a369f1166cb5b83feccb5e2ab3475508128501fb54b7ebc087fefa78f9cc9c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a369f1166cb5b83feccb5e2ab3475508128501fb54b7ebc087fefa78f9cc9c9e", kill_on_drop: false }`
[INFO] [stdout] a369f1166cb5b83feccb5e2ab3475508128501fb54b7ebc087fefa78f9cc9c9e