[INFO] cloning repository https://github.com/AnyTimeTraveler/reMousable
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnyTimeTraveler/reMousable" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnyTimeTraveler%2FreMousable", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnyTimeTraveler%2FreMousable'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38d92e01426ce916a36b85499e382010d91c8365
[INFO] testing AnyTimeTraveler/reMousable against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnyTimeTraveler%2FreMousable" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnyTimeTraveler/reMousable on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AnyTimeTraveler/reMousable
[INFO] finished tweaking git repo https://github.com/AnyTimeTraveler/reMousable
[INFO] tweaked toml for git repo https://github.com/AnyTimeTraveler/reMousable written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/AnyTimeTraveler/reMousable already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded websocket-base v0.26.2
[INFO] [stderr]   Downloaded websocket v0.26.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] baf26b9a08008da263615467086b1081134df73896d3f2d9b2080d2f163466e7
[INFO] running `Command { std: "docker" "start" "-a" "baf26b9a08008da263615467086b1081134df73896d3f2d9b2080d2f163466e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "baf26b9a08008da263615467086b1081134df73896d3f2d9b2080d2f163466e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baf26b9a08008da263615467086b1081134df73896d3f2d9b2080d2f163466e7", kill_on_drop: false }`
[INFO] [stdout] baf26b9a08008da263615467086b1081134df73896d3f2d9b2080d2f163466e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccd5a8803999e32781c6fa327e029c56af3507398af293e83e07af18cc2d09bd
[INFO] running `Command { std: "docker" "start" "-a" "ccd5a8803999e32781c6fa327e029c56af3507398af293e83e07af18cc2d09bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling futures v0.1.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling enigo v0.0.14
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-tls v0.2.1
[INFO] [stderr]    Compiling websocket-base v0.26.2
[INFO] [stderr]    Compiling websocket v0.26.2
[INFO] [stderr]    Compiling reMousable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `serde_json`
[INFO] [stdout]   --> src/main.rs:24:34
[INFO] [stdout]    |
[INFO] [stdout] 24 |             let dots: [i64; 3] = serde_json::from_str(text.as_str()).unwrap();
[INFO] [stdout]    |                                  ^^^^^^^^^^ use of undeclared crate or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reMousable` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ccd5a8803999e32781c6fa327e029c56af3507398af293e83e07af18cc2d09bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd5a8803999e32781c6fa327e029c56af3507398af293e83e07af18cc2d09bd", kill_on_drop: false }`
[INFO] [stdout] ccd5a8803999e32781c6fa327e029c56af3507398af293e83e07af18cc2d09bd