[INFO] cloning repository https://github.com/sheganinans/rust-assoc-type-talk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sheganinans/rust-assoc-type-talk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsheganinans%2Frust-assoc-type-talk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsheganinans%2Frust-assoc-type-talk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93f177a1a531105afe792959f74c90bb4904fc83
[INFO] checking sheganinans/rust-assoc-type-talk against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsheganinans%2Frust-assoc-type-talk" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sheganinans/rust-assoc-type-talk on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sheganinans/rust-assoc-type-talk
[INFO] finished tweaking git repo https://github.com/sheganinans/rust-assoc-type-talk
[INFO] tweaked toml for git repo https://github.com/sheganinans/rust-assoc-type-talk written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/sheganinans/rust-assoc-type-talk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c65c0118a8a09a873aa13df1ee91c31e80518457707ca9d03078c6171509b2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c65c0118a8a09a873aa13df1ee91c31e80518457707ca9d03078c6171509b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c65c0118a8a09a873aa13df1ee91c31e80518457707ca9d03078c6171509b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c65c0118a8a09a873aa13df1ee91c31e80518457707ca9d03078c6171509b2d", kill_on_drop: false }`
[INFO] [stdout] 1c65c0118a8a09a873aa13df1ee91c31e80518457707ca9d03078c6171509b2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccf60682c439b265f04e17c26dc1005f862993926cd5b09bd44e79dc538b0ca7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ccf60682c439b265f04e17c26dc1005f862993926cd5b09bd44e79dc538b0ca7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust-assoc-type-talk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/step1.rs:19:28
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn print_num_legs(animal: &Animal) {
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Animal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/step1.rs:19:28
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn print_num_legs(animal: &Animal) {
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Animal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `std::ops::Add` for type `step7::Point`
[INFO] [stdout]   --> src/step7.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Add for Point {
[INFO] [stdout]    | ------------------ first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 34 | impl Add for Point {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^ conflicting implementation for `step7::Point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `std::ops::Add` for type `step7::Point`
[INFO] [stdout]   --> src/step7.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Add for Point {
[INFO] [stdout]    | ------------------ first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 34 | impl Add for Point {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^ conflicting implementation for `step7::Point`
[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 E0119`.
[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 E0119`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-assoc-type-talk`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ccf60682c439b265f04e17c26dc1005f862993926cd5b09bd44e79dc538b0ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf60682c439b265f04e17c26dc1005f862993926cd5b09bd44e79dc538b0ca7", kill_on_drop: false }`
[INFO] [stdout] ccf60682c439b265f04e17c26dc1005f862993926cd5b09bd44e79dc538b0ca7