[INFO] fetching crate bfcomp 0.1.2...
[INFO] testing bfcomp-0.1.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate bfcomp 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate bfcomp 0.1.2
[INFO] finished tweaking crates.io crate bfcomp 0.1.2
[INFO] tweaked toml for crates.io crate bfcomp 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bfcomp 0.1.2 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 bfcomp 0.1.2 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] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bfcore v0.2.0
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 380237ed4b1dbd89c4668f2324b3fb35d37a8020284b1016f9c65f2381fbc9ff
[INFO] running `Command { std: "docker" "start" "-a" "380237ed4b1dbd89c4668f2324b3fb35d37a8020284b1016f9c65f2381fbc9ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "380237ed4b1dbd89c4668f2324b3fb35d37a8020284b1016f9c65f2381fbc9ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "380237ed4b1dbd89c4668f2324b3fb35d37a8020284b1016f9c65f2381fbc9ff", kill_on_drop: false }`
[INFO] [stdout] 380237ed4b1dbd89c4668f2324b3fb35d37a8020284b1016f9c65f2381fbc9ff
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 14ea458fdba6bd816ebcb4c1247a08a4d2cef7425a4da9c19a65969a14b6f2de
[INFO] running `Command { std: "docker" "start" "-a" "14ea458fdba6bd816ebcb4c1247a08a4d2cef7425a4da9c19a65969a14b6f2de", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bfcore v0.2.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling bfcomp v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `lang` is never read
[INFO] [stdout]  --> src/input.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CompilerInput {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 9 |     lang: Lang,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CompilerInput` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lang` is never read
[INFO] [stdout]  --> src/compiler.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Compiler {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 9 |     lang: Lang,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Compiler` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.67s
[INFO] running `Command { std: "docker" "inspect" "14ea458fdba6bd816ebcb4c1247a08a4d2cef7425a4da9c19a65969a14b6f2de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14ea458fdba6bd816ebcb4c1247a08a4d2cef7425a4da9c19a65969a14b6f2de", kill_on_drop: false }`
[INFO] [stdout] 14ea458fdba6bd816ebcb4c1247a08a4d2cef7425a4da9c19a65969a14b6f2de
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/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] c6ccc386c2153758ea6bf851313d80f7663b945616908641d3e7adaa2825b1da
[INFO] running `Command { std: "docker" "start" "-a" "c6ccc386c2153758ea6bf851313d80f7663b945616908641d3e7adaa2825b1da", kill_on_drop: false }`
[INFO] [stdout] warning: field `lang` is never read
[INFO] [stdout]  --> src/input.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CompilerInput {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 9 |     lang: Lang,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CompilerInput` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lang` is never read
[INFO] [stdout]  --> src/compiler.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Compiler {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 9 |     lang: Lang,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Compiler` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bfcomp v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `lang` is never read
[INFO] [stdout]  --> src/input.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CompilerInput {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 9 |     lang: Lang,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CompilerInput` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lang` is never read
[INFO] [stdout]  --> src/compiler.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Compiler {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 9 |     lang: Lang,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Compiler` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "c6ccc386c2153758ea6bf851313d80f7663b945616908641d3e7adaa2825b1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ccc386c2153758ea6bf851313d80f7663b945616908641d3e7adaa2825b1da", kill_on_drop: false }`
[INFO] [stdout] c6ccc386c2153758ea6bf851313d80f7663b945616908641d3e7adaa2825b1da
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] cc5d83d496e3689c626af75d9ef98a2663c96149b88a44584fb3448f419138ad
[INFO] running `Command { std: "docker" "start" "-a" "cc5d83d496e3689c626af75d9ef98a2663c96149b88a44584fb3448f419138ad", kill_on_drop: false }`
[INFO] [stderr] warning: field `lang` is never read
[INFO] [stderr]  --> src/input.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct CompilerInput {
[INFO] [stderr]   |            ------------- field in this struct
[INFO] [stderr] 9 |     lang: Lang,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `CompilerInput` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `lang` is never read
[INFO] [stderr]  --> src/compiler.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Compiler {
[INFO] [stderr]   |            -------- field in this struct
[INFO] [stderr] 9 |     lang: Lang,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Compiler` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `bfcomp` (lib) generated 2 warnings
[INFO] [stderr] warning: `bfcomp` (lib test) generated 2 warnings (2 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/bfcomp-5e06f87a640bda06)
[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] [stderr]      Running unittests src/bin.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/bfcomp-76696e690b96df69)
[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" "cc5d83d496e3689c626af75d9ef98a2663c96149b88a44584fb3448f419138ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc5d83d496e3689c626af75d9ef98a2663c96149b88a44584fb3448f419138ad", kill_on_drop: false }`
[INFO] [stdout] cc5d83d496e3689c626af75d9ef98a2663c96149b88a44584fb3448f419138ad