[INFO] fetching crate project_manager 0.1.3...
[INFO] checking project_manager-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate project_manager 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate project_manager 0.1.3 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 project_manager 0.1.3
[INFO] finished tweaking crates.io crate project_manager 0.1.3
[INFO] tweaked toml for crates.io crate project_manager 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate project_manager 0.1.3 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]  Downloading crates ...
[INFO] [stderr]   Downloaded smart-default v0.6.0
[INFO] [stderr]   Downloaded tui v0.18.0
[INFO] [stderr]   Downloaded serde_json v1.0.58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f071d769da08a6faa99bd6edc57eb50058ff7df9ba04cf0bbbc50651300208ed
[INFO] running `Command { std: "docker" "start" "-a" "f071d769da08a6faa99bd6edc57eb50058ff7df9ba04cf0bbbc50651300208ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f071d769da08a6faa99bd6edc57eb50058ff7df9ba04cf0bbbc50651300208ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f071d769da08a6faa99bd6edc57eb50058ff7df9ba04cf0bbbc50651300208ed", kill_on_drop: false }`
[INFO] [stdout] f071d769da08a6faa99bd6edc57eb50058ff7df9ba04cf0bbbc50651300208ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6b2bfd8f8c965f3d59b1bb51160f0272ad5b19fbea163cd052613beb907474e7
[INFO] running `Command { std: "docker" "start" "-a" "6b2bfd8f8c965f3d59b1bb51160f0272ad5b19fbea163cd052613beb907474e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking signal-hook v0.3.14
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]     Checking tui v0.18.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]     Checking project_manager v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `InformationDisplay` is never used
[INFO] [stdout]    --> src/structure.rs:178:7
[INFO] [stdout]     |
[INFO] [stdout] 178 | trait InformationDisplay {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Completable` is never used
[INFO] [stdout]    --> src/structure.rs:183:7
[INFO] [stdout]     |
[INFO] [stdout] 183 | trait Completable {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_working_directory` is never used
[INFO] [stdout]  --> src/services/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Service {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 5 |     fn set_working_directory(&mut self, path: std::path::PathBuf);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `InformationDisplay` is never used
[INFO] [stdout]    --> src/structure.rs:178:7
[INFO] [stdout]     |
[INFO] [stdout] 178 | trait InformationDisplay {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Completable` is never used
[INFO] [stdout]    --> src/structure.rs:183:7
[INFO] [stdout]     |
[INFO] [stdout] 183 | trait Completable {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_working_directory` is never used
[INFO] [stdout]  --> src/services/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Service {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 5 |     fn set_working_directory(&mut self, path: std::path::PathBuf);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.35s
[INFO] running `Command { std: "docker" "inspect" "6b2bfd8f8c965f3d59b1bb51160f0272ad5b19fbea163cd052613beb907474e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b2bfd8f8c965f3d59b1bb51160f0272ad5b19fbea163cd052613beb907474e7", kill_on_drop: false }`
[INFO] [stdout] 6b2bfd8f8c965f3d59b1bb51160f0272ad5b19fbea163cd052613beb907474e7
[INFO] checking project_manager-0.1.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate project_manager 0.1.3 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate project_manager 0.1.3 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 project_manager 0.1.3
[INFO] finished tweaking crates.io crate project_manager 0.1.3
[INFO] tweaked toml for crates.io crate project_manager 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate project_manager 0.1.3 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 91da14b2e18d8d859b874d4a60c5c2242faba35f017f86ab4cc484acf7543d2f
[INFO] running `Command { std: "docker" "start" "-a" "91da14b2e18d8d859b874d4a60c5c2242faba35f017f86ab4cc484acf7543d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91da14b2e18d8d859b874d4a60c5c2242faba35f017f86ab4cc484acf7543d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91da14b2e18d8d859b874d4a60c5c2242faba35f017f86ab4cc484acf7543d2f", kill_on_drop: false }`
[INFO] [stdout] 91da14b2e18d8d859b874d4a60c5c2242faba35f017f86ab4cc484acf7543d2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8796a6f716316308785fb3c216557ba65423fba13e6be37c11d2df471d012ae5
[INFO] running `Command { std: "docker" "start" "-a" "8796a6f716316308785fb3c216557ba65423fba13e6be37c11d2df471d012ae5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking signal-hook v0.3.14
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking tui v0.18.0
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]     Checking project_manager v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `InformationDisplay` is never used
[INFO] [stdout]    --> src/structure.rs:178:7
[INFO] [stdout]     |
[INFO] [stdout] 178 | trait InformationDisplay {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Completable` is never used
[INFO] [stdout]    --> src/structure.rs:183:7
[INFO] [stdout]     |
[INFO] [stdout] 183 | trait Completable {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_working_directory` is never used
[INFO] [stdout]  --> src/services/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Service {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 5 |     fn set_working_directory(&mut self, path: std::path::PathBuf);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `InformationDisplay` is never used
[INFO] [stdout]    --> src/structure.rs:178:7
[INFO] [stdout]     |
[INFO] [stdout] 178 | trait InformationDisplay {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Completable` is never used
[INFO] [stdout]    --> src/structure.rs:183:7
[INFO] [stdout]     |
[INFO] [stdout] 183 | trait Completable {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_working_directory` is never used
[INFO] [stdout]  --> src/services/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Service {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 5 |     fn set_working_directory(&mut self, path: std::path::PathBuf);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.96s
[INFO] running `Command { std: "docker" "inspect" "8796a6f716316308785fb3c216557ba65423fba13e6be37c11d2df471d012ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8796a6f716316308785fb3c216557ba65423fba13e6be37c11d2df471d012ae5", kill_on_drop: false }`
[INFO] [stdout] 8796a6f716316308785fb3c216557ba65423fba13e6be37c11d2df471d012ae5