[INFO] fetching crate async-pop3 0.1.0...
[INFO] checking async-pop3-0.1.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate async-pop3 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate async-pop3 0.1.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-pop3 0.1.0
[INFO] finished tweaking crates.io crate async-pop3 0.1.0
[INFO] tweaked toml for crates.io crate async-pop3 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ucd-util v0.1.10
[INFO] [stderr]   Downloaded utf8-ranges v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35a1f4260bb1706385e52ca36d8ed37f582a8f3553e147ae4772b9c8979e0bbe
[INFO] running `Command { std: "docker" "start" "-a" "35a1f4260bb1706385e52ca36d8ed37f582a8f3553e147ae4772b9c8979e0bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35a1f4260bb1706385e52ca36d8ed37f582a8f3553e147ae4772b9c8979e0bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a1f4260bb1706385e52ca36d8ed37f582a8f3553e147ae4772b9c8979e0bbe", kill_on_drop: false }`
[INFO] [stdout] 35a1f4260bb1706385e52ca36d8ed37f582a8f3553e147ae4772b9c8979e0bbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df515f7990e901247fd4067f6b5d308450685eacda20bcdf2c5ba6478f041182
[INFO] running `Command { std: "docker" "start" "-a" "df515f7990e901247fd4067f6b5d308450685eacda20bcdf2c5ba6478f041182", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking value-bag v1.8.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking futures-lite v2.2.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.2.0
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking thiserror v1.0.57
[INFO] [stderr]     Checking polling v3.5.0
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking async-pop3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.21s
[INFO] running `Command { std: "docker" "inspect" "df515f7990e901247fd4067f6b5d308450685eacda20bcdf2c5ba6478f041182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df515f7990e901247fd4067f6b5d308450685eacda20bcdf2c5ba6478f041182", kill_on_drop: false }`
[INFO] [stdout] df515f7990e901247fd4067f6b5d308450685eacda20bcdf2c5ba6478f041182
