[INFO] fetching crate switcher 0.0.8-alpha...
[INFO] testing switcher-0.0.8-alpha against 1.95.0 for beta-1.96-2
[INFO] extracting crate switcher 0.0.8-alpha into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate switcher 0.0.8-alpha
[INFO] finished tweaking crates.io crate switcher 0.0.8-alpha
[INFO] tweaked toml for crates.io crate switcher 0.0.8-alpha written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate switcher 0.0.8-alpha on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate switcher 0.0.8-alpha 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dirs-sys v0.3.6
[INFO] [stderr]   Downloaded itoa v1.0.1
[INFO] [stderr]   Downloaded redox_users v0.4.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.10
[INFO] [stderr]   Downloaded ryu v1.0.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.34
[INFO] [stderr]   Downloaded serde v1.0.132
[INFO] [stderr]   Downloaded syn v1.0.82
[INFO] [stderr]   Downloaded serde_json v1.0.73
[INFO] [stderr]   Downloaded serde_derive v1.0.132
[INFO] [stderr]   Downloaded getrandom v0.2.3
[INFO] [stderr]   Downloaded libc v0.2.112
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cec0e57c008e24d2057279502a3614fb9b1d58527392a938c6a1aa984357c2a
[INFO] running `Command { std: "docker" "start" "-a" "7cec0e57c008e24d2057279502a3614fb9b1d58527392a938c6a1aa984357c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cec0e57c008e24d2057279502a3614fb9b1d58527392a938c6a1aa984357c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cec0e57c008e24d2057279502a3614fb9b1d58527392a938c6a1aa984357c2a", kill_on_drop: false }`
[INFO] [stdout] 7cec0e57c008e24d2057279502a3614fb9b1d58527392a938c6a1aa984357c2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb49f153b9136436105839a2c20bd13384beb32d2d439b3623fd20fd38508f1f
[INFO] running `Command { std: "docker" "start" "-a" "fb49f153b9136436105839a2c20bd13384beb32d2d439b3623fd20fd38508f1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling switcher v0.0.8-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/commands/projects.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut project = match config.get_project(&project_name) {
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.79s
[INFO] running `Command { std: "docker" "inspect" "fb49f153b9136436105839a2c20bd13384beb32d2d439b3623fd20fd38508f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb49f153b9136436105839a2c20bd13384beb32d2d439b3623fd20fd38508f1f", kill_on_drop: false }`
[INFO] [stdout] fb49f153b9136436105839a2c20bd13384beb32d2d439b3623fd20fd38508f1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33fdb8c4940e724f8bebbdc893f218d3a732e10ad050fab24b39804934bcce87
[INFO] running `Command { std: "docker" "start" "-a" "33fdb8c4940e724f8bebbdc893f218d3a732e10ad050fab24b39804934bcce87", kill_on_drop: false }`
[INFO] [stderr]    Compiling switcher v0.0.8-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/commands/projects.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut project = match config.get_project(&project_name) {
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "33fdb8c4940e724f8bebbdc893f218d3a732e10ad050fab24b39804934bcce87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33fdb8c4940e724f8bebbdc893f218d3a732e10ad050fab24b39804934bcce87", kill_on_drop: false }`
[INFO] [stdout] 33fdb8c4940e724f8bebbdc893f218d3a732e10ad050fab24b39804934bcce87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bf086826df8b2f93b65991aa71b9be4098be358cd5aeab365dfb4a3017d40f9b
[INFO] running `Command { std: "docker" "start" "-a" "bf086826df8b2f93b65991aa71b9be4098be358cd5aeab365dfb4a3017d40f9b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/commands/projects.rs:154:9
[INFO] [stderr]     |
[INFO] [stderr] 154 |     let mut project = match config.get_project(&project_name) {
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `switcher` (bin "switcher" test) generated 1 warning (run `cargo fix --bin "switcher" -p switcher --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/switcher-408d6d1bde22e7b9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bf086826df8b2f93b65991aa71b9be4098be358cd5aeab365dfb4a3017d40f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf086826df8b2f93b65991aa71b9be4098be358cd5aeab365dfb4a3017d40f9b", kill_on_drop: false }`
[INFO] [stdout] bf086826df8b2f93b65991aa71b9be4098be358cd5aeab365dfb4a3017d40f9b
