[INFO] fetching crate mailme 0.1.1...
[INFO] checking mailme-0.1.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate mailme 0.1.1 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate mailme 0.1.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mailme 0.1.1
[INFO] finished tweaking crates.io crate mailme 0.1.1
[INFO] tweaked toml for crates.io crate mailme 0.1.1 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b427ed3ad7f8dce7e03c0a83ed676bd7aab2b0e46f7a12f6e0e602a4ac88bc3
[INFO] running `Command { std: "docker" "start" "-a" "3b427ed3ad7f8dce7e03c0a83ed676bd7aab2b0e46f7a12f6e0e602a4ac88bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b427ed3ad7f8dce7e03c0a83ed676bd7aab2b0e46f7a12f6e0e602a4ac88bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b427ed3ad7f8dce7e03c0a83ed676bd7aab2b0e46f7a12f6e0e602a4ac88bc3", kill_on_drop: false }`
[INFO] [stdout] 3b427ed3ad7f8dce7e03c0a83ed676bd7aab2b0e46f7a12f6e0e602a4ac88bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03fa5a5efd897906fdff8770c25870c5ac476c3a55719379bb815a4e08a3be00
[INFO] running `Command { std: "docker" "start" "-a" "03fa5a5efd897906fdff8770c25870c5ac476c3a55719379bb815a4e08a3be00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking memchr v2.4.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking tokio-rustls v0.20.0
[INFO] [stderr]     Checking mailme v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `msg_count`
[INFO] [stdout]    --> src/pop3.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 346 |     msg_count: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mailbox_size`
[INFO] [stdout]    --> src/pop3.rs:347:5
[INFO] [stdout]     |
[INFO] [stdout] 347 |     mailbox_size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg_count`
[INFO] [stdout]    --> src/pop3.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 346 |     msg_count: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mailbox_size`
[INFO] [stdout]    --> src/pop3.rs:347:5
[INFO] [stdout]     |
[INFO] [stdout] 347 |     mailbox_size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.74s
[INFO] running `Command { std: "docker" "inspect" "03fa5a5efd897906fdff8770c25870c5ac476c3a55719379bb815a4e08a3be00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03fa5a5efd897906fdff8770c25870c5ac476c3a55719379bb815a4e08a3be00", kill_on_drop: false }`
[INFO] [stdout] 03fa5a5efd897906fdff8770c25870c5ac476c3a55719379bb815a4e08a3be00