[INFO] fetching crate c8str 0.2.0...
[INFO] testing c8str-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate c8str 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate c8str 0.2.0
[INFO] finished tweaking crates.io crate c8str 0.2.0
[INFO] tweaked toml for crates.io crate c8str 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate c8str 0.2.0 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] crate crates.io crate c8str 0.2.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6c892b7de4887a4213e6f1d90272786011e8fbf975fa63f55715434048d8bd1
[INFO] running `Command { std: "docker" "start" "-a" "a6c892b7de4887a4213e6f1d90272786011e8fbf975fa63f55715434048d8bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6c892b7de4887a4213e6f1d90272786011e8fbf975fa63f55715434048d8bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c892b7de4887a4213e6f1d90272786011e8fbf975fa63f55715434048d8bd1", kill_on_drop: false }`
[INFO] [stdout] a6c892b7de4887a4213e6f1d90272786011e8fbf975fa63f55715434048d8bd1
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] be149c30802a8eb2098b31964f22d16d435d3c68bd7ec44b7ea33253c7445d91
[INFO] running `Command { std: "docker" "start" "-a" "be149c30802a8eb2098b31964f22d16d435d3c68bd7ec44b7ea33253c7445d91", kill_on_drop: false }`
[INFO] [stderr]    Compiling c8str v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `mem::MaybeUninit`
[INFO] [stdout]   --> src/lib.rs:60:58
[INFO] [stdout]    |
[INFO] [stdout] 60 | use core::{convert::Infallible, error::Error, ffi::CStr, mem::MaybeUninit};
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_STACK_LEN` is never used
[INFO] [stdout]  --> src/lib.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAX_STACK_LEN: usize = 4096;
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `inner_zero_unknown` is never used
[INFO] [stdout]    --> src/lib.rs:162:14
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl C8StrError {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |     const fn inner_zero_unknown() -> Self {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "be149c30802a8eb2098b31964f22d16d435d3c68bd7ec44b7ea33253c7445d91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be149c30802a8eb2098b31964f22d16d435d3c68bd7ec44b7ea33253c7445d91", kill_on_drop: false }`
[INFO] [stdout] be149c30802a8eb2098b31964f22d16d435d3c68bd7ec44b7ea33253c7445d91
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/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] dd87c906f054dfb450daba8abbd496f22bae35ee8dfe22b16d1079ceb573b3f4
[INFO] running `Command { std: "docker" "start" "-a" "dd87c906f054dfb450daba8abbd496f22bae35ee8dfe22b16d1079ceb573b3f4", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `mem::MaybeUninit`
[INFO] [stdout]   --> src/lib.rs:60:58
[INFO] [stdout]    |
[INFO] [stdout] 60 | use core::{convert::Infallible, error::Error, ffi::CStr, mem::MaybeUninit};
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_STACK_LEN` is never used
[INFO] [stdout]  --> src/lib.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAX_STACK_LEN: usize = 4096;
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling c8str v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `inner_zero_unknown` is never used
[INFO] [stdout]    --> src/lib.rs:162:14
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl C8StrError {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |     const fn inner_zero_unknown() -> Self {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem::MaybeUninit`
[INFO] [stdout]   --> src/lib.rs:60:58
[INFO] [stdout]    |
[INFO] [stdout] 60 | use core::{convert::Infallible, error::Error, ffi::CStr, mem::MaybeUninit};
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_STACK_LEN` is never used
[INFO] [stdout]  --> src/lib.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAX_STACK_LEN: usize = 4096;
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `inner_zero_unknown` is never used
[INFO] [stdout]    --> src/lib.rs:162:14
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl C8StrError {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |     const fn inner_zero_unknown() -> Self {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "dd87c906f054dfb450daba8abbd496f22bae35ee8dfe22b16d1079ceb573b3f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd87c906f054dfb450daba8abbd496f22bae35ee8dfe22b16d1079ceb573b3f4", kill_on_drop: false }`
[INFO] [stdout] dd87c906f054dfb450daba8abbd496f22bae35ee8dfe22b16d1079ceb573b3f4
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] ac225711e71429731ad56c06e42f5e7fd34f656d6ea3593008e35ffa6c6c7210
[INFO] running `Command { std: "docker" "start" "-a" "ac225711e71429731ad56c06e42f5e7fd34f656d6ea3593008e35ffa6c6c7210", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `mem::MaybeUninit`
[INFO] [stderr]   --> src/lib.rs:60:58
[INFO] [stderr]    |
[INFO] [stderr] 60 | use core::{convert::Infallible, error::Error, ffi::CStr, mem::MaybeUninit};
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_STACK_LEN` is never used
[INFO] [stderr]  --> src/lib.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const MAX_STACK_LEN: usize = 4096;
[INFO] [stderr]   |       ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `inner_zero_unknown` is never used
[INFO] [stderr]    --> src/lib.rs:162:14
[INFO] [stderr]     |
[INFO] [stderr] 146 | impl C8StrError {
[INFO] [stderr]     | --------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 162 |     const fn inner_zero_unknown() -> Self {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `c8str` (lib) generated 3 warnings (run `cargo fix --lib -p c8str` to apply 1 suggestion)
[INFO] [stderr] warning: `c8str` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/c8str-a7bd33f7b60f9ca3)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test tests::c8_str::as_bytes ... ok
[INFO] [stdout] test tests::c8_str::as_bytes_with_nul ... ok
[INFO] [stdout] test tests::c8_str::as_c_str ... ok
[INFO] [stdout] test tests::c8_str::as_str ... ok
[INFO] [stdout] test tests::c8_str::as_str_with_nul ... ok
[INFO] [stdout] test tests::c8_str::count_bytes ... ok
[INFO] [stdout] test tests::c8_str::from_bytes_until_nul ... ok
[INFO] [stdout] test tests::c8_str::from_bytes_with_nul ... ok
[INFO] [stdout] test tests::c8_str::from_c_str ... ok
[INFO] [stdout] test tests::c8_str::from_ptr ... ok
[INFO] [stdout] test tests::c8_str::from_ptr_unchecked ... ok
[INFO] [stdout] test tests::c8_str::from_str_with_nul ... ok
[INFO] [stdout] test tests::c8_str::from_str_with_nul_unchecked ... ok
[INFO] [stdout] test tests::c8_str::len ... ok
[INFO] [stdout] test tests::c8_str::to_bytes_with_nul ... ok
[INFO] [stdout] test tests::c8_str::from_utf8_bytes_with_nul_unchecked ... ok
[INFO] [stdout] test tests::c8_str::is_empty ... ok
[INFO] [stdout] test tests::c8_str::len_with_nul ... ok
[INFO] [stdout] test tests::c8_str::to_bytes ... ok
[INFO] [stdout] test tests::c8_str::with_c8_str ... ok
[INFO] [stdout] test tests::c_str ... ok
[INFO] [stdout] test tests::c8_str::to_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ac225711e71429731ad56c06e42f5e7fd34f656d6ea3593008e35ffa6c6c7210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac225711e71429731ad56c06e42f5e7fd34f656d6ea3593008e35ffa6c6c7210", kill_on_drop: false }`
[INFO] [stdout] ac225711e71429731ad56c06e42f5e7fd34f656d6ea3593008e35ffa6c6c7210