[INFO] cloning repository https://github.com/mabruckner/mathland
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mabruckner/mathland" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmabruckner%2Fmathland", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmabruckner%2Fmathland'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0300787f6e0bf4b369640848341e08536843a9a
[INFO] testing mabruckner/mathland 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%2Fmabruckner%2Fmathland" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mabruckner/mathland 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/mabruckner/mathland
[INFO] finished tweaking git repo https://github.com/mabruckner/mathland
[INFO] tweaked toml for git repo https://github.com/mabruckner/mathland written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/mabruckner/mathland 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 1fb49d17b1031660b7c7fb6b87a923cb6c1ef29f2b16d5f3f962ff3ee4d69256
[INFO] running `Command { std: "docker" "start" "-a" "1fb49d17b1031660b7c7fb6b87a923cb6c1ef29f2b16d5f3f962ff3ee4d69256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fb49d17b1031660b7c7fb6b87a923cb6c1ef29f2b16d5f3f962ff3ee4d69256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb49d17b1031660b7c7fb6b87a923cb6c1ef29f2b16d5f3f962ff3ee4d69256", kill_on_drop: false }`
[INFO] [stdout] 1fb49d17b1031660b7c7fb6b87a923cb6c1ef29f2b16d5f3f962ff3ee4d69256
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] d9fd657b3a601edbed0cd8136a70d110336544c91ff3468438c189d5dbb7332a
[INFO] running `Command { std: "docker" "start" "-a" "d9fd657b3a601edbed0cd8136a70d110336544c91ff3468438c189d5dbb7332a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling cc v1.0.34
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.3
[INFO] [stderr]    Compiling base-x v0.2.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling stdweb v0.4.15
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling http v0.1.17
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.6
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling yew v0.7.0 (https://github.com/mabruckner/yew.git?branch=svg-hack#b69be1d5)
[INFO] [stderr]    Compiling mathland v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enemy.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub card: Box<EnemyCard>,
[INFO] [stdout]    |                   ^^^^^^^^^ help: use `dyn`: `dyn EnemyCard`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enemy.rs:93:43
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn generate_problem(&mut self) -> Box<Problem>;
[INFO] [stdout]    |                                           ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/enemy.rs:118:35
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let (name, card): (_, Box<EnemyCard>) = match self.level {
[INFO] [stdout]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn EnemyCard`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/enemy.rs:119:14
[INFO] [stdout]     |
[INFO] [stdout] 119 |             0...3 => ("Circle", Box::new(CircleCard())),
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/enemy.rs:135:43
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn generate_problem(&mut self) -> Box<Problem> {
[INFO] [stdout]     |                                           ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:80:39
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub obstacles: Vec<([f32; 2], Box<Problem>)>,
[INFO] [stdout]    |                                       ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:81:29
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub encounters: Vec<Box<Enemy>>,
[INFO] [stdout]    |                             ^^^^^ help: use `dyn`: `dyn Enemy`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:104:20
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub enemy: Box<Enemy>,
[INFO] [stdout]     |                    ^^^^^ help: use `dyn`: `dyn Enemy`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub problem: Option<Box<Problem>>,
[INFO] [stdout]     |                             ^^^^^^^ help: use `dyn`: `dyn Problem`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:149:25
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub _anim_task: Box<Task>,
[INFO] [stdout]     |                         ^^^^ help: use `dyn`: `dyn Task`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 343 |         std::mem::replace(&mut self.state, s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.mathland.d9ddc9d6-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124.5r3peh34330m09l.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-6adf9900fe9362a6/out" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libmathland-772faae54659d404.rlib" "/opt/rustwide/target/debug/deps/libcgmath-aa84bf070c628a7b.rlib" "/opt/rustwide/target/debug/deps/libapprox-589d90617b3e45bf.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-4390a99cfa7636aa.rlib" "/opt/rustwide/target/debug/deps/librand-5c441747fb51e0d4.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-244c720be45f4b39.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-4b26d7fce03abc62.rlib" "/opt/rustwide/target/debug/deps/librand_hc-d4586ed8ec3f19f4.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-71e2673ec25390c3.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-93a4c3a9c9e075c6.rlib" "/opt/rustwide/target/debug/deps/librand_core-72e25c6e9b3161d3.rlib" "/opt/rustwide/target/debug/deps/librand_os-a5fd49633b7e3867.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-1099fd7fe9b2670b.rlib" "/opt/rustwide/target/debug/deps/librand_core-a82cc77dcf65e6c8.rlib" "/opt/rustwide/target/debug/deps/libyew-6f3fb1da5175cd9e.rlib" "/opt/rustwide/target/debug/deps/libstdweb-8a34202654d50c66.rlib" "/opt/rustwide/target/debug/deps/libdiscard-26e25f9a297f0b3c.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-e340967cd348569e.rlib" "/opt/rustwide/target/debug/deps/libslab-19bed823898320f8.rlib" "/opt/rustwide/target/debug/deps/libanymap-c7ee211834be1d6a.rlib" "/opt/rustwide/target/debug/deps/libbincode-7602b3c62633f362.rlib" "/opt/rustwide/target/debug/deps/libserde_json-543bafb006ba0cda.rlib" "/opt/rustwide/target/debug/deps/libryu-be523c7de1ac55d9.rlib" "/opt/rustwide/target/debug/deps/libserde-e09dca2ac6d31aad.rlib" "/opt/rustwide/target/debug/deps/libhttp-784f026f56a82489.rlib" "/opt/rustwide/target/debug/deps/libitoa-d6bf09347714b9a4.rlib" "/opt/rustwide/target/debug/deps/libfnv-4051482eb6a94926.rlib" "/opt/rustwide/target/debug/deps/libbytes-c616ad5451caf16c.rlib" "/opt/rustwide/target/debug/deps/libiovec-57cccca2948890bc.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-83adec3461a13c4f.rlib" "/opt/rustwide/target/debug/deps/liblog-fe8f8aea687937b8.rlib" "/opt/rustwide/target/debug/deps/libfailure-56cf9a0225f73eca.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-f40ef183df0997da.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-86a3b868082d5983.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-6e59363fb7a19d1a.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-f35ced9db9806c8a.rlib" "/opt/rustwide/target/debug/deps/liblibc-dcc7cb65ea67ba62.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-46a006cddfd334f0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-5b9870310e470b38.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-260022ba8f1ab4ee.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-71377435a799394f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-658ee5924fde57cd.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-9e8627da6bd1b94a.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-19fdaac49f59be84.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-cb00e2691ea45905.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-50f6726defae5ae1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-2afc16311deea26e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bb5cb0fe086ee8cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-896053247b5dfd0b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-735e1f2ac3cf23be.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-9dfb6622644c732c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-a9a3b2ad67977f47.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/mathland-12a0d15aad03e124" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-6f3fb1da5175cd9e.rlib(yew-6f3fb1da5175cd9e.yew.a04e5100-cgu.14.rcgu.o): in function `yew::services::interval::IntervalService::spawn::snippet::__cargo_web_snippet_e16925f5fb047225caca5aebacba0569cda4fd62':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-6f3fb1da5175cd9e.rlib(yew-6f3fb1da5175cd9e.yew.a04e5100-cgu.14.rcgu.o): in function `<yew::services::interval::IntervalTask as yew::services::Task>::cancel::snippet::__cargo_web_snippet_4a7df277900746999886798c4e9ff738877c3d95':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-6f3fb1da5175cd9e.rlib(yew-6f3fb1da5175cd9e.yew.a04e5100-cgu.2.rcgu.o): in function `yew::services::console::ConsoleService::log::snippet::__cargo_web_snippet_199d5eb25dfe761687bcd487578eb7e636bd9650':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-6f3fb1da5175cd9e.rlib(yew-6f3fb1da5175cd9e.yew.a04e5100-cgu.5.rcgu.o): in function `yew::virtual_dom::vtag::VTag<COMP>::apply_diffs::snippet::__cargo_web_snippet_0da47658267a7497de743e1b0892f992ba6ca6ef':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-6f3fb1da5175cd9e.rlib(yew-6f3fb1da5175cd9e.yew.a04e5100-cgu.5.rcgu.o): in function `yew::virtual_dom::vtag::VTag<COMP>::apply_diffs::snippet::__cargo_web_snippet_6a77b2f2accec26fefbfa0d864061d26f40f8f6f':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libyew-6f3fb1da5175cd9e.rlib(yew-6f3fb1da5175cd9e.yew.a04e5100-cgu.5.rcgu.o):/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:91: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-8a34202654d50c66.rlib(stdweb-8a34202654d50c66.stdweb.6f36443f-cgu.8.rcgu.o): in function `stdweb::webcore::ffi::emscripten::event_loop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_pause_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/ffi/emscripten.rs:11: undefined reference to `emscripten_set_main_loop'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-8a34202654d50c66.rlib(stdweb-8a34202654d50c66.stdweb.6f36443f-cgu.8.rcgu.o): in function `<stdweb::webcore::symbol::Symbol as core::clone::Clone>::clone::snippet::__cargo_web_snippet_0aced9e2351ced72f1ff99645a129132b16c0d3c':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:32: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-8a34202654d50c66.rlib(stdweb-8a34202654d50c66.stdweb.6f36443f-cgu.8.rcgu.o): in function `<stdweb::webcore::symbol::Symbol as core::ops::drop::Drop>::drop::snippet::__cargo_web_snippet_e9638d6405ab65f78daf4a5af9c9de14ecf1e2ec':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-8a34202654d50c66.rlib(stdweb-8a34202654d50c66.stdweb.6f36443f-cgu.8.rcgu.o): in function `stdweb::webapi::event_target::EventListenerHandle::remove::snippet::__cargo_web_snippet_f750c7bda400081b4d7209f43f9d59214d39f6ea':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:91: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libstdweb-8a34202654d50c66.rlib(stdweb-8a34202654d50c66.stdweb.6f36443f-cgu.8.rcgu.o): in function `stdweb::webapi::event_target::IEventTarget::add_event_listener::snippet::__cargo_web_snippet_99c4eefdc8d4cc724135163b8c8665a1f3de99e4':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.15/src/webcore/macros.rs:101: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mathland` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d9fd657b3a601edbed0cd8136a70d110336544c91ff3468438c189d5dbb7332a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9fd657b3a601edbed0cd8136a70d110336544c91ff3468438c189d5dbb7332a", kill_on_drop: false }`
[INFO] [stdout] d9fd657b3a601edbed0cd8136a70d110336544c91ff3468438c189d5dbb7332a
