[INFO] cloning repository https://github.com/upsuper/maildir-pack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/upsuper/maildir-pack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fupsuper%2Fmaildir-pack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fupsuper%2Fmaildir-pack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70bb7d8b6a182153bc54b43aa83df90c44d97dcb
[INFO] checking upsuper/maildir-pack against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fupsuper%2Fmaildir-pack" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/upsuper/maildir-pack on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/upsuper/maildir-pack
[INFO] finished tweaking git repo https://github.com/upsuper/maildir-pack
[INFO] tweaked toml for git repo https://github.com/upsuper/maildir-pack written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/upsuper/maildir-pack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_cmd v1.0.0
[INFO] [stderr]   Downloaded serde_json v1.0.49
[INFO] [stderr]   Downloaded combine v4.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9ccc8e0866f8b18c2d6202f2ca27ee7500b5c4105c080b3286779b52c0f8941
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f9ccc8e0866f8b18c2d6202f2ca27ee7500b5c4105c080b3286779b52c0f8941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9ccc8e0866f8b18c2d6202f2ca27ee7500b5c4105c080b3286779b52c0f8941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ccc8e0866f8b18c2d6202f2ca27ee7500b5c4105c080b3286779b52c0f8941", kill_on_drop: false }`
[INFO] [stdout] f9ccc8e0866f8b18c2d6202f2ca27ee7500b5c4105c080b3286779b52c0f8941
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db902cf8a2a36876264619a8f0b2abfe49fe81cc2b574c61e0782efe25753bd6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "db902cf8a2a36876264619a8f0b2abfe49fe81cc2b574c61e0782efe25753bd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking leak v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling lzma-sys v0.1.15
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking combine v4.0.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking console v0.10.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking indicatif v0.14.0
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking maildir-pack v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.105
[INFO] [stderr]     Checking serde_json v1.0.49
[INFO] [stderr]     Checking escargot v0.5.0
[INFO] [stderr]     Checking assert_cmd v1.0.0
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:25:38
[INFO] [stdout]    |
[INFO] [stdout] 25 |     static ref KEEP_TEST_DIR: bool = { env::var("KEEP_TEST_DIR").is_ok() };
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:33:72
[INFO] [stdout]    |
[INFO] [stdout] 33 |     static ref ALL_EMAILS: HashMap<&'static str, Vec<&'static Path>> = { list_emails().unwrap() };
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:34:66
[INFO] [stdout]    |
[INFO] [stdout] 34 |     static ref EMAIL_HASHS: HashMap<&'static Path, HashResult> = { hash_emails().unwrap() };
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "db902cf8a2a36876264619a8f0b2abfe49fe81cc2b574c61e0782efe25753bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db902cf8a2a36876264619a8f0b2abfe49fe81cc2b574c61e0782efe25753bd6", kill_on_drop: false }`
[INFO] [stdout] db902cf8a2a36876264619a8f0b2abfe49fe81cc2b574c61e0782efe25753bd6