[INFO] fetching crate ticket2ride 0.3.1...
[INFO] checking ticket2ride-0.3.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate ticket2ride 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ticket2ride 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 ticket2ride 0.3.1
[INFO] finished tweaking crates.io crate ticket2ride 0.3.1
[INFO] tweaked toml for crates.io crate ticket2ride 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ticket2ride 0.3.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flexi_logger v0.19.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] da7baadbcd5b3738e5c7373a9e94a1a23e321a9c11aa95beef7d4a3fd825e9f4
[INFO] running `Command { std: "docker" "start" "-a" "da7baadbcd5b3738e5c7373a9e94a1a23e321a9c11aa95beef7d4a3fd825e9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da7baadbcd5b3738e5c7373a9e94a1a23e321a9c11aa95beef7d4a3fd825e9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7baadbcd5b3738e5c7373a9e94a1a23e321a9c11aa95beef7d4a3fd825e9f4", kill_on_drop: false }`
[INFO] [stdout] da7baadbcd5b3738e5c7373a9e94a1a23e321a9c11aa95beef7d4a3fd825e9f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d2324d9bba09c941f294f64819d9de1bc566e3fe4572b37bcb42ba2809e1d88e
[INFO] running `Command { std: "docker" "start" "-a" "d2324d9bba09c941f294f64819d9de1bc566e3fe4572b37bcb42ba2809e1d88e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strum v0.22.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling strum_macros v0.22.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking flexi_logger v0.19.5
[INFO] [stderr]     Checking ticket2ride v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `routing` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ticket2ride::routing;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `routing` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `scoring` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `scoring` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `routing` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ticket2ride::routing;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `routing` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `scoring` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `scoring` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.73s
[INFO] running `Command { std: "docker" "inspect" "d2324d9bba09c941f294f64819d9de1bc566e3fe4572b37bcb42ba2809e1d88e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2324d9bba09c941f294f64819d9de1bc566e3fe4572b37bcb42ba2809e1d88e", kill_on_drop: false }`
[INFO] [stdout] d2324d9bba09c941f294f64819d9de1bc566e3fe4572b37bcb42ba2809e1d88e
[INFO] checking ticket2ride-0.3.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate ticket2ride 0.3.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ticket2ride 0.3.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ticket2ride 0.3.1
[INFO] finished tweaking crates.io crate ticket2ride 0.3.1
[INFO] tweaked toml for crates.io crate ticket2ride 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate ticket2ride 0.3.1 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a8791c911303f5f2933749f00d36d30907e3274792c47565506ab11435fe822
[INFO] running `Command { std: "docker" "start" "-a" "9a8791c911303f5f2933749f00d36d30907e3274792c47565506ab11435fe822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a8791c911303f5f2933749f00d36d30907e3274792c47565506ab11435fe822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a8791c911303f5f2933749f00d36d30907e3274792c47565506ab11435fe822", kill_on_drop: false }`
[INFO] [stdout] 9a8791c911303f5f2933749f00d36d30907e3274792c47565506ab11435fe822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83980a30a14c4476083dbd0fa54f392f111f0d4ec82d150d674c80a95afcb6af
[INFO] running `Command { std: "docker" "start" "-a" "83980a30a14c4476083dbd0fa54f392f111f0d4ec82d150d674c80a95afcb6af", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strum v0.22.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling strum_macros v0.22.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking flexi_logger v0.19.5
[INFO] [stderr]     Checking ticket2ride v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `routing` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ticket2ride::routing;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `routing` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `routing` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ticket2ride::routing;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `routing` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `scoring` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `scoring` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `scoring` is imported redundantly
[INFO] [stdout]  --> src/experiment.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ticket2ride::scoring;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 | use ticket2ride::*;
[INFO] [stdout]   |     -------------- the item `scoring` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.50s
[INFO] running `Command { std: "docker" "inspect" "83980a30a14c4476083dbd0fa54f392f111f0d4ec82d150d674c80a95afcb6af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83980a30a14c4476083dbd0fa54f392f111f0d4ec82d150d674c80a95afcb6af", kill_on_drop: false }`
[INFO] [stdout] 83980a30a14c4476083dbd0fa54f392f111f0d4ec82d150d674c80a95afcb6af