[INFO] cloning repository https://github.com/scottschroeder/git-summary-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scottschroeder/git-summary-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Fgit-summary-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Fgit-summary-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10c39294f62e9ff00e5dba8b1940a08149b11f14
[INFO] building scottschroeder/git-summary-rs against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Fgit-summary-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scottschroeder/git-summary-rs on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scottschroeder/git-summary-rs
[INFO] finished tweaking git repo https://github.com/scottschroeder/git-summary-rs
[INFO] tweaked toml for git repo https://github.com/scottschroeder/git-summary-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/scottschroeder/git-summary-rs 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.169
[INFO] [stderr]   Downloaded syn v2.0.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ea5734b9dddd067790c7c92ce4761c41e313dd7aa7f313aa173ec9d91fb983f
[INFO] running `Command { std: "docker" "start" "-a" "3ea5734b9dddd067790c7c92ce4761c41e313dd7aa7f313aa173ec9d91fb983f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ea5734b9dddd067790c7c92ce4761c41e313dd7aa7f313aa173ec9d91fb983f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea5734b9dddd067790c7c92ce4761c41e313dd7aa7f313aa173ec9d91fb983f", kill_on_drop: false }`
[INFO] [stdout] 3ea5734b9dddd067790c7c92ce4761c41e313dd7aa7f313aa173ec9d91fb983f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed523782577e39aec2968dcbddfa7b650425cc79b8b5114205d23b3b24d8ccc7
[INFO] running `Command { std: "docker" "start" "-a" "ed523782577e39aec2968dcbddfa7b650425cc79b8b5114205d23b3b24d8ccc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling rustix v0.38.3
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.169
[INFO] [stderr]    Compiling regex-syntax v0.7.3
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling ryu v1.0.14
[INFO] [stderr]    Compiling regex-automata v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]    Compiling libz-sys v1.1.9
[INFO] [stderr]    Compiling libssh2-sys v0.3.0
[INFO] [stderr]    Compiling libgit2-sys v0.15.2+1.6.4
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling itoa v1.0.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling url v2.4.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling encode_unicode v1.0.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling csv v1.2.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling prettytable-rs v0.10.0
[INFO] [stderr]    Compiling git2 v0.17.2
[INFO] [stderr]    Compiling git-summary v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:100:22
[INFO] [stdout]     |
[INFO] [stdout] 100 |         for cause in e.source() {
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -         for cause in e.source() {
[INFO] [stdout] 100 +         while let Some(cause) = e.source() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -         for cause in e.source() {
[INFO] [stdout] 100 +         if let Some(cause) = e.source() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "ed523782577e39aec2968dcbddfa7b650425cc79b8b5114205d23b3b24d8ccc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed523782577e39aec2968dcbddfa7b650425cc79b8b5114205d23b3b24d8ccc7", kill_on_drop: false }`
[INFO] [stdout] ed523782577e39aec2968dcbddfa7b650425cc79b8b5114205d23b3b24d8ccc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36da3fc36747f02a57c8aa1afc038b106b6a631f6a58df51330c3a9c74e3f00a
[INFO] running `Command { std: "docker" "start" "-a" "36da3fc36747f02a57c8aa1afc038b106b6a631f6a58df51330c3a9c74e3f00a", kill_on_drop: false }`
[INFO] [stderr]    Compiling git-summary v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:100:22
[INFO] [stdout]     |
[INFO] [stdout] 100 |         for cause in e.source() {
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -         for cause in e.source() {
[INFO] [stdout] 100 +         while let Some(cause) = e.source() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -         for cause in e.source() {
[INFO] [stdout] 100 +         if let Some(cause) = e.source() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "36da3fc36747f02a57c8aa1afc038b106b6a631f6a58df51330c3a9c74e3f00a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36da3fc36747f02a57c8aa1afc038b106b6a631f6a58df51330c3a9c74e3f00a", kill_on_drop: false }`
[INFO] [stdout] 36da3fc36747f02a57c8aa1afc038b106b6a631f6a58df51330c3a9c74e3f00a