[INFO] cloning repository https://github.com/brson/ferris-fencing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brson/ferris-fencing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fferris-fencing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fferris-fencing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb192e1b74464ab5878c1cba20ff597e51c45796
[INFO] testing brson/ferris-fencing against beta-2021-09-12 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrson%2Fferris-fencing" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brson/ferris-fencing on toolchain beta-2021-09-12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-17/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/brson/ferris-fencing
[INFO] finished tweaking git repo https://github.com/brson/ferris-fencing
[INFO] tweaked toml for git repo https://github.com/brson/ferris-fencing written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/brson/ferris-fencing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/brson/bloop.git`
[INFO] [stderr]     Updating git repository `https://github.com/brson/ckb-vm.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded goblin v0.0.24
[INFO] [stderr]   Downloaded compiler_builtins v0.1.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2021-09-12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0757c7f767ac52f09d0ec89e814923a6a732a39cadac60dc09908b08668c5e8
[INFO] running `Command { std: "docker" "start" "-a" "c0757c7f767ac52f09d0ec89e814923a6a732a39cadac60dc09908b08668c5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0757c7f767ac52f09d0ec89e814923a6a732a39cadac60dc09908b08668c5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0757c7f767ac52f09d0ec89e814923a6a732a39cadac60dc09908b08668c5e8", kill_on_drop: false }`
[INFO] [stdout] c0757c7f767ac52f09d0ec89e814923a6a732a39cadac60dc09908b08668c5e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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" "+beta-2021-09-12" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 283cf74c1d5798e3b9a47dea64af7207fda8015b21b9a97b1b23218ab16ec50f
[INFO] running `Command { std: "docker" "start" "-a" "283cf74c1d5798e3b9a47dea64af7207fda8015b21b9a97b1b23218ab16ec50f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ckb-vm-definitions v0.18.0 (https://github.com/brson/ckb-vm.git?rev=f49edd17927d0158289a5f5ed500c86f5e0816c1#f49edd17)
[INFO] [stderr]    Compiling b_error v0.1.0 (https://github.com/brson/bloop.git?rev=474fc1309eff36a65113000eb6e0dcd9d9e95316#474fc130)
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling ckb-vm v0.18.0 (https://github.com/brson/ckb-vm.git?rev=f49edd17927d0158289a5f5ed500c86f5e0816c1#f49edd17)
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling goblin v0.0.24
[INFO] [stderr]    Compiling structopt-derive v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling structopt v0.3.3
[INFO] [stderr]    Compiling ff_rt v0.1.0 (/opt/rustwide/workdir/src/ff_rt)
[INFO] [stderr]    Compiling ff_local v0.1.0 (/opt/rustwide/workdir/src/ff_local)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/ff_local/main.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 |         .intersperse('|')
[INFO] [stdout]    |          ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 86 ~     let s: String = Iterator::intersperse(iter::repeat('_')
[INFO] [stdout] 87 +         .take(GAME_FIELD_SIZE as usize)
[INFO] [stdout] 88 +         .enumerate()
[INFO] [stdout] 89 +         .map(|(i, blank)| {
[INFO] [stdout] 90 +             if i == s.p1.pos as usize {
[INFO] [stdout] 91 +                 '1'
[INFO] [stdout]  ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 86 ~     let s: String = Itertools::intersperse(iter::repeat('_')
[INFO] [stdout] 87 +         .take(GAME_FIELD_SIZE as usize)
[INFO] [stdout] 88 +         .enumerate()
[INFO] [stdout] 89 +         .map(|(i, blank)| {
[INFO] [stdout] 90 +             if i == s.p1.pos as usize {
[INFO] [stdout] 91 +                 '1'
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/ff_local/main.rs:145:10
[INFO] [stdout]     |
[INFO] [stdout] 145 |         .intersperse('|')
[INFO] [stdout]     |          ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 105 ~     let s: String = Iterator::intersperse(iter::repeat('_')
[INFO] [stdout] 106 +         .take(GAME_FIELD_SIZE as usize)
[INFO] [stdout] 107 +         .enumerate()
[INFO] [stdout] 108 +         .map(|(i, blank)| {
[INFO] [stdout] 109 +             if s.victor() == None {
[INFO] [stdout] 110 +                 if i == s.inner_state().p1.pos as usize {
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 105 ~     let s: String = Itertools::intersperse(iter::repeat('_')
[INFO] [stdout] 106 +         .take(GAME_FIELD_SIZE as usize)
[INFO] [stdout] 107 +         .enumerate()
[INFO] [stdout] 108 +         .map(|(i, blank)| {
[INFO] [stdout] 109 +             if s.victor() == None {
[INFO] [stdout] 110 +                 if i == s.inner_state().p1.pos as usize {
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ff_local` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "283cf74c1d5798e3b9a47dea64af7207fda8015b21b9a97b1b23218ab16ec50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "283cf74c1d5798e3b9a47dea64af7207fda8015b21b9a97b1b23218ab16ec50f", kill_on_drop: false }`
[INFO] [stdout] 283cf74c1d5798e3b9a47dea64af7207fda8015b21b9a97b1b23218ab16ec50f