[INFO] cloning repository https://github.com/Stratus51/rust_matrix_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Stratus51/rust_matrix_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Frust_matrix_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Frust_matrix_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 248a48d64f31651297ccf9eab9dff254b41c6945
[INFO] testing Stratus51/rust_matrix_client 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%2FStratus51%2Frust_matrix_client" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Stratus51/rust_matrix_client 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] started tweaking git repo https://github.com/Stratus51/rust_matrix_client
[INFO] finished tweaking git repo https://github.com/Stratus51/rust_matrix_client
[INFO] tweaked toml for git repo https://github.com/Stratus51/rust_matrix_client written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Stratus51/rust_matrix_client 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ruma-events v0.15.1
[INFO] [stderr]   Downloaded ruma-client v0.3.0
[INFO] [stderr]   Downloaded ruma-api v0.13.1
[INFO] [stderr]   Downloaded pin-project-internal v0.4.7
[INFO] [stderr]   Downloaded ruma-api-macros v0.10.1
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[INFO] [stderr]   Downloaded js_int v0.1.2
[INFO] [stderr]   Downloaded tui v0.8.0
[INFO] [stderr]   Downloaded ruma-client-api v0.6.0
[INFO] [stderr]   Downloaded ruma-identifiers v0.14.1
[INFO] [stderr]   Downloaded ruma-events-macros v0.2.0
[INFO] [stderr]   Downloaded tokio v0.2.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 3e63c4ae1aabfd3f9e499159832d9d3df44883946aaa3e7b155aa35905d61b83
[INFO] running `Command { std: "docker" "start" "-a" "3e63c4ae1aabfd3f9e499159832d9d3df44883946aaa3e7b155aa35905d61b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e63c4ae1aabfd3f9e499159832d9d3df44883946aaa3e7b155aa35905d61b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e63c4ae1aabfd3f9e499159832d9d3df44883946aaa3e7b155aa35905d61b83", kill_on_drop: false }`
[INFO] [stdout] 3e63c4ae1aabfd3f9e499159832d9d3df44883946aaa3e7b155aa35905d61b83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] be19b64797fe49fc9dc9b4f9917cdc3f3b10cb123766f8d48846d1c5cacfee83
[INFO] running `Command { std: "docker" "start" "-a" "be19b64797fe49fc9dc9b4f9917cdc3f3b10cb123766f8d48846d1c5cacfee83", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
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[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling smallvec v1.1.0
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.4
[INFO] [stderr]    Compiling ryu v1.0.2
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[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling futures-sink v0.3.1
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[INFO] [stderr]    Compiling futures-channel v0.3.1
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[INFO] [stderr]    Compiling unicode-normalization v0.1.12
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling time v0.1.42
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[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]    Compiling tui v0.8.0
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling rand_chacha v0.2.1
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[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.7
[INFO] [stderr]    Compiling ruma-api-macros v0.10.1
[INFO] [stderr]    Compiling ruma-events-macros v0.2.0
[INFO] [stderr]    Compiling tokio v0.2.10
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling pin-project v0.4.7
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling serde_json v1.0.47
[INFO] [stderr]    Compiling js_int v0.1.2
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling ruma-identifiers v0.14.1
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling h2 v0.2.1
[INFO] [stderr]    Compiling ruma-events v0.15.1
[INFO] [stderr]    Compiling ruma-api v0.13.1
[INFO] [stderr]    Compiling hyper v0.13.2
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling ruma-client-api v0.6.0
[INFO] [stderr]    Compiling ruma-client v0.3.0
[INFO] [stderr]    Compiling rust_matrix_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/text/editable_text.rs:74:14
[INFO] [stdout]    |
[INFO] [stdout] 74 |             .intersperse("\n".to_string())
[INFO] [stdout]    |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `std::iter::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] 69 ~         let ret = Iterator::intersperse(self
[INFO] [stdout] 70 +             .lines
[INFO] [stdout] 71 +             .clone()
[INFO] [stdout] 72 +             .into_iter()
[INFO] [stdout] 73 +             .map(|l| l.line), "\n".to_string())
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 69 ~         let ret = Itertools::intersperse(self
[INFO] [stdout] 70 +             .lines
[INFO] [stdout] 71 +             .clone()
[INFO] [stdout] 72 +             .into_iter()
[INFO] [stdout] 73 +             .map(|l| l.line), "\n".to_string())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/text/editable_text.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_matrix_client` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "be19b64797fe49fc9dc9b4f9917cdc3f3b10cb123766f8d48846d1c5cacfee83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be19b64797fe49fc9dc9b4f9917cdc3f3b10cb123766f8d48846d1c5cacfee83", kill_on_drop: false }`
[INFO] [stdout] be19b64797fe49fc9dc9b4f9917cdc3f3b10cb123766f8d48846d1c5cacfee83