[INFO] cloning repository https://github.com/CrispinStichart/email-liberator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CrispinStichart/email-liberator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrispinStichart%2Femail-liberator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrispinStichart%2Femail-liberator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c32d6e238e03a11242436100265f5258f7c9e8e
[INFO] checking CrispinStichart/email-liberator against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrispinStichart%2Femail-liberator" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CrispinStichart/email-liberator
[INFO] finished tweaking git repo https://github.com/CrispinStichart/email-liberator
[INFO] tweaked toml for git repo https://github.com/CrispinStichart/email-liberator written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CrispinStichart/email-liberator on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CrispinStichart/email-liberator 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winutil v0.1.1
[INFO] [stderr]   Downloaded hostname v0.1.5
[INFO] [stderr]   Downloaded mailparse v0.13.8
[INFO] [stderr]   Downloaded which v4.2.4
[INFO] [stderr]   Downloaded quoted_printable v0.4.5
[INFO] [stderr]   Downloaded lettre_email v0.9.4
[INFO] [stderr]   Downloaded lettre v0.9.6
[INFO] [stderr]   Downloaded assert_cmd v2.0.4
[INFO] [stderr]   Downloaded anyhow v1.0.56
[INFO] [stderr]   Downloaded duct v0.13.5
[INFO] [stderr]   Downloaded nom v4.2.3
[INFO] [stderr]   Downloaded imap-proto v0.15.0
[INFO] [stderr]   Downloaded email v0.0.20
[INFO] [stderr]   Downloaded ouroboros_macro v0.14.2
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded ascii_utils v0.9.3
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded shared_child v0.3.5
[INFO] [stderr]   Downloaded ouroboros v0.14.2
[INFO] [stderr]   Downloaded fast_chemail v0.9.6
[INFO] [stderr]   Downloaded charset v0.1.3
[INFO] [stderr]   Downloaded imap v3.0.0-alpha.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a73b51a425f036696af16de6df10fbd02f56b4b10a8a9f6b062cff06ea9ce30d
[INFO] running `Command { std: "docker" "start" "-a" "a73b51a425f036696af16de6df10fbd02f56b4b10a8a9f6b062cff06ea9ce30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a73b51a425f036696af16de6df10fbd02f56b4b10a8a9f6b062cff06ea9ce30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a73b51a425f036696af16de6df10fbd02f56b4b10a8a9f6b062cff06ea9ce30d", kill_on_drop: false }`
[INFO] [stdout] a73b51a425f036696af16de6df10fbd02f56b4b10a8a9f6b062cff06ea9ce30d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 164d5a0017bf7c1bfbd64488718f29fc3cd95b121cea5bf861fd4b2604cccb3b
[INFO] running `Command { std: "docker" "start" "-a" "164d5a0017bf7c1bfbd64488718f29fc3cd95b121cea5bf861fd4b2604cccb3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking charset v0.1.3
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking quoted_printable v0.4.5
[INFO] [stderr]     Checking which v4.2.4
[INFO] [stderr]     Checking mailparse v0.13.8
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking imap-proto v0.15.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking shared_child v0.3.5
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking duct v0.13.5
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling ouroboros_macro v0.14.2
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking ouroboros v0.14.2
[INFO] [stderr]     Checking imap v3.0.0-alpha.6
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking ctrlc v3.2.1
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking lettre v0.9.6
[INFO] [stderr]     Checking lettre_email v0.9.4
[INFO] [stderr]     Checking mail_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/binary_libs/fetcher_lib.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 |     if let Ok(mut last_seen) = last_seen_uid.lock()
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/binary_libs/fetcher_lib.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 |     if let Ok(mut last_seen) = last_seen_uid.lock()
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Result`
[INFO] [stdout]  --> src/action.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use anyhow::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mail_client` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mail_client` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "164d5a0017bf7c1bfbd64488718f29fc3cd95b121cea5bf861fd4b2604cccb3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "164d5a0017bf7c1bfbd64488718f29fc3cd95b121cea5bf861fd4b2604cccb3b", kill_on_drop: false }`
[INFO] [stdout] 164d5a0017bf7c1bfbd64488718f29fc3cd95b121cea5bf861fd4b2604cccb3b
