[INFO] fetching crate rcell 2.0.0...
[INFO] testing rcell-2.0.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate rcell 2.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rcell 2.0.0
[INFO] finished tweaking crates.io crate rcell 2.0.0
[INFO] tweaked toml for crates.io crate rcell 2.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rcell 2.0.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2f36e090f9d4e478efd1021dbedee3c7123d86a65485d5c47aa02299a738cce
[INFO] running `Command { std: "docker" "start" "-a" "e2f36e090f9d4e478efd1021dbedee3c7123d86a65485d5c47aa02299a738cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2f36e090f9d4e478efd1021dbedee3c7123d86a65485d5c47aa02299a738cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f36e090f9d4e478efd1021dbedee3c7123d86a65485d5c47aa02299a738cce", kill_on_drop: false }`
[INFO] [stdout] e2f36e090f9d4e478efd1021dbedee3c7123d86a65485d5c47aa02299a738cce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a2241954ce14a474ca35396f8d2b8875ba5419ea652ddc0d638d7453e3191d0e
[INFO] running `Command { std: "docker" "start" "-a" "a2241954ce14a474ca35396f8d2b8875ba5419ea652ddc0d638d7453e3191d0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcell v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "a2241954ce14a474ca35396f8d2b8875ba5419ea652ddc0d638d7453e3191d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2241954ce14a474ca35396f8d2b8875ba5419ea652ddc0d638d7453e3191d0e", kill_on_drop: false }`
[INFO] [stdout] a2241954ce14a474ca35396f8d2b8875ba5419ea652ddc0d638d7453e3191d0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 4aa42693445e69544ffabefb33a9483a4bea1cbc50aedcb935c14372a2849478
[INFO] running `Command { std: "docker" "start" "-a" "4aa42693445e69544ffabefb33a9483a4bea1cbc50aedcb935c14372a2849478", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcell v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/integration.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     struct MyType(&'static str);
[INFO] [stdout]    |            ------ ^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "4aa42693445e69544ffabefb33a9483a4bea1cbc50aedcb935c14372a2849478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa42693445e69544ffabefb33a9483a4bea1cbc50aedcb935c14372a2849478", kill_on_drop: false }`
[INFO] [stdout] 4aa42693445e69544ffabefb33a9483a4bea1cbc50aedcb935c14372a2849478
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 58bd2752b5926a7bd2714a7b6090a465e66f495a6e4a5c6b0fe489109ad34f83
[INFO] running `Command { std: "docker" "start" "-a" "58bd2752b5926a7bd2714a7b6090a465e66f495a6e4a5c6b0fe489109ad34f83", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> tests/integration.rs:11:19
[INFO] [stderr]    |
[INFO] [stderr] 11 |     struct MyType(&'static str);
[INFO] [stderr]    |            ------ ^^^^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rcell` (test "integration") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rcell-bf5c135fbce3b83b)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::default ... ok
[INFO] [stdout] test tests::from_strong ... ok
[INFO] [stdout] test tests::from_weak_drop_original ... ok
[INFO] [stdout] test tests::from_weak_release ... ok
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::replace_strong ... ok
[INFO] [stdout] test tests::replace_weak ... ok
[INFO] [stdout] test tests::smoke ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/integration-8f1e2d1d922530a9)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test own_type ... ok
[INFO] [stdout] test std_type ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "58bd2752b5926a7bd2714a7b6090a465e66f495a6e4a5c6b0fe489109ad34f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58bd2752b5926a7bd2714a7b6090a465e66f495a6e4a5c6b0fe489109ad34f83", kill_on_drop: false }`
[INFO] [stdout] 58bd2752b5926a7bd2714a7b6090a465e66f495a6e4a5c6b0fe489109ad34f83