[INFO] cloning repository https://github.com/d-becker/spider
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/d-becker/spider" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-becker%2Fspider", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-becker%2Fspider'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c0922ad1d9d2a4395dcee99ff6c22b3acd819e5
[INFO] checking d-becker/spider against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-becker%2Fspider" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/d-becker/spider on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/d-becker/spider
[INFO] finished tweaking git repo https://github.com/d-becker/spider
[INFO] tweaked toml for git repo https://github.com/d-becker/spider written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/d-becker/spider 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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93ac146813e07f809378ba6ab5335bde1902642ceaa67550af5b30b098d0cc12
[INFO] running `Command { std: "docker" "start" "-a" "93ac146813e07f809378ba6ab5335bde1902642ceaa67550af5b30b098d0cc12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93ac146813e07f809378ba6ab5335bde1902642ceaa67550af5b30b098d0cc12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ac146813e07f809378ba6ab5335bde1902642ceaa67550af5b30b098d0cc12", kill_on_drop: false }`
[INFO] [stdout] 93ac146813e07f809378ba6ab5335bde1902642ceaa67550af5b30b098d0cc12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39cd330771f535d5c8af03cfa80ff34987ee8d60fd278209b7c881bacb781c6d
[INFO] running `Command { std: "docker" "start" "-a" "39cd330771f535d5c8af03cfa80ff34987ee8d60fd278209b7c881bacb781c6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling gio-sys v0.9.1
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling atk-sys v0.9.1
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking spider_backend v0.1.0 (/opt/rustwide/workdir/spider_backend)
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> spider_backend/src/model/rectilinear/polygon/tests_fractal_polygon_inside.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> spider_backend/src/model/rectilinear/path/mod.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if let Some(last_point) = self.points_.last() {
[INFO] [stdout]    |                                   ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 69 |             for pt in points_to_add {
[INFO] [stdout]    |                       ------------- immutable borrow later used here
[INFO] [stdout] 70 |                 self.handle_loop(&pt);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> spider_backend/src/model/rectilinear/path/mod.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if let Some(last_point) = self.points_.last() {
[INFO] [stdout]    |                                   ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 69 |             for pt in points_to_add {
[INFO] [stdout]    |                       ------------- immutable borrow later used here
[INFO] [stdout] 70 |                 self.handle_loop(&pt);
[INFO] [stdout] 71 |                 self.handle_collinearity(&pt);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `self.points_` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> spider_backend/src/model/rectilinear/path/mod.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if let Some(last_point) = self.points_.last() {
[INFO] [stdout]    |                                   ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 69 |             for pt in points_to_add {
[INFO] [stdout]    |                       ------------- immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 73 |                 self.points_.push(pt);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]   --> spider_backend/src/model/snake.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn next_step(&self, field: &Field, spider: &Spider) -> Direction {
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spider`
[INFO] [stdout]   --> spider_backend/src/model/snake.rs:17:44
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn next_step(&self, field: &Field, spider: &Spider) -> Direction {
[INFO] [stdout]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spider`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spider_backend` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> spider_backend/src/model/rectilinear/path/mod.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if let Some(last_point) = self.points_.last() {
[INFO] [stdout]    |                                   ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 69 |             for pt in points_to_add {
[INFO] [stdout]    |                       ------------- immutable borrow later used here
[INFO] [stdout] 70 |                 self.handle_loop(&pt);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> spider_backend/src/model/rectilinear/path/mod.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if let Some(last_point) = self.points_.last() {
[INFO] [stdout]    |                                   ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 69 |             for pt in points_to_add {
[INFO] [stdout]    |                       ------------- immutable borrow later used here
[INFO] [stdout] 70 |                 self.handle_loop(&pt);
[INFO] [stdout] 71 |                 self.handle_collinearity(&pt);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `self.points_` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> spider_backend/src/model/rectilinear/path/mod.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if let Some(last_point) = self.points_.last() {
[INFO] [stdout]    |                                   ------------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 69 |             for pt in points_to_add {
[INFO] [stdout]    |                       ------------- immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 73 |                 self.points_.push(pt);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `field`
[INFO] [stdout]   --> spider_backend/src/model/snake.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn next_step(&self, field: &Field, spider: &Spider) -> Direction {
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_field`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spider`
[INFO] [stdout]   --> spider_backend/src/model/snake.rs:17:44
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn next_step(&self, field: &Field, spider: &Spider) -> Direction {
[INFO] [stdout]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_spider`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spider_backend` (lib test) due to 4 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "39cd330771f535d5c8af03cfa80ff34987ee8d60fd278209b7c881bacb781c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39cd330771f535d5c8af03cfa80ff34987ee8d60fd278209b7c881bacb781c6d", kill_on_drop: false }`
[INFO] [stdout] 39cd330771f535d5c8af03cfa80ff34987ee8d60fd278209b7c881bacb781c6d