[INFO] fetching crate path-finding-lib 0.3.1...
[INFO] checking path-finding-lib-0.3.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate path-finding-lib 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate path-finding-lib 0.3.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate path-finding-lib 0.3.1
[INFO] finished tweaking crates.io crate path-finding-lib 0.3.1
[INFO] tweaked toml for crates.io crate path-finding-lib 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding ordered-float v3.9.2 (latest: v4.2.0)
[INFO] [stderr]       Adding priority-queue v1.4.0 (latest: v2.0.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbd0d52a59f9cc301363ea2eee86c4c1f379d1bf4d2f572a0e05f230a6b956b6
[INFO] running `Command { std: "docker" "start" "-a" "dbd0d52a59f9cc301363ea2eee86c4c1f379d1bf4d2f572a0e05f230a6b956b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbd0d52a59f9cc301363ea2eee86c4c1f379d1bf4d2f572a0e05f230a6b956b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd0d52a59f9cc301363ea2eee86c4c1f379d1bf4d2f572a0e05f230a6b956b6", kill_on_drop: false }`
[INFO] [stdout] dbd0d52a59f9cc301363ea2eee86c4c1f379d1bf4d2f572a0e05f230a6b956b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8ec325d15a1045db8118837452120b61505a9f4963ba54d898d078292a459dc
[INFO] running `Command { std: "docker" "start" "-a" "c8ec325d15a1045db8118837452120b61505a9f4963ba54d898d078292a459dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling priority-queue v1.4.0
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking path-finding-lib v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/search.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub use breadth_first::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the name `BreadthFirstSearch` in the type namespace is first re-exported here
[INFO] [stdout] 9  | pub use depth_first::*;
[INFO] [stdout] 10 | pub use dijkstra::*;
[INFO] [stdout]    |         ----------- but the name `BreadthFirstSearch` in the type namespace is also re-exported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/search.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub use breadth_first::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the name `BreadthFirstSearch` in the type namespace is first re-exported here
[INFO] [stdout] 9  | pub use depth_first::*;
[INFO] [stdout] 10 | pub use dijkstra::*;
[INFO] [stdout]    |         ----------- but the name `BreadthFirstSearch` in the type namespace is also re-exported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.41s
[INFO] running `Command { std: "docker" "inspect" "c8ec325d15a1045db8118837452120b61505a9f4963ba54d898d078292a459dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ec325d15a1045db8118837452120b61505a9f4963ba54d898d078292a459dc", kill_on_drop: false }`
[INFO] [stdout] c8ec325d15a1045db8118837452120b61505a9f4963ba54d898d078292a459dc
[INFO] checking path-finding-lib-0.3.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate path-finding-lib 0.3.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate path-finding-lib 0.3.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate path-finding-lib 0.3.1
[INFO] finished tweaking crates.io crate path-finding-lib 0.3.1
[INFO] tweaked toml for crates.io crate path-finding-lib 0.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cd77d0c288b14357743bf5e0556e2e2f225d98561edf46d3fbe03dbdc0572a4
[INFO] running `Command { std: "docker" "start" "-a" "2cd77d0c288b14357743bf5e0556e2e2f225d98561edf46d3fbe03dbdc0572a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cd77d0c288b14357743bf5e0556e2e2f225d98561edf46d3fbe03dbdc0572a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cd77d0c288b14357743bf5e0556e2e2f225d98561edf46d3fbe03dbdc0572a4", kill_on_drop: false }`
[INFO] [stdout] 2cd77d0c288b14357743bf5e0556e2e2f225d98561edf46d3fbe03dbdc0572a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b61cfef7273ccc6983548349f4e6f235fb8f407330d3ddc23e8a2351fc7f391c
[INFO] running `Command { std: "docker" "start" "-a" "b61cfef7273ccc6983548349f4e6f235fb8f407330d3ddc23e8a2351fc7f391c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling priority-queue v1.4.0
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking path-finding-lib v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/search.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub use breadth_first::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the name `BreadthFirstSearch` in the type namespace is first re-exported here
[INFO] [stdout] 9  | pub use depth_first::*;
[INFO] [stdout] 10 | pub use dijkstra::*;
[INFO] [stdout]    |         ----------- but the name `BreadthFirstSearch` in the type namespace is also re-exported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/search.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub use breadth_first::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the name `BreadthFirstSearch` in the type namespace is first re-exported here
[INFO] [stdout] 9  | pub use depth_first::*;
[INFO] [stdout] 10 | pub use dijkstra::*;
[INFO] [stdout]    |         ----------- but the name `BreadthFirstSearch` in the type namespace is also re-exported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.65s
[INFO] running `Command { std: "docker" "inspect" "b61cfef7273ccc6983548349f4e6f235fb8f407330d3ddc23e8a2351fc7f391c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61cfef7273ccc6983548349f4e6f235fb8f407330d3ddc23e8a2351fc7f391c", kill_on_drop: false }`
[INFO] [stdout] b61cfef7273ccc6983548349f4e6f235fb8f407330d3ddc23e8a2351fc7f391c