[INFO] cloning repository https://github.com/pcwalton/fast-itoa [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pcwalton/fast-itoa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpcwalton%2Ffast-itoa", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpcwalton%2Ffast-itoa'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1ca1c3153332e6265d4050724b97a8b7168cab6c [INFO] testing pcwalton/fast-itoa against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpcwalton%2Ffast-itoa" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/pcwalton/fast-itoa [INFO] finished tweaking git repo https://github.com/pcwalton/fast-itoa [INFO] tweaked toml for git repo https://github.com/pcwalton/fast-itoa written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/pcwalton/fast-itoa 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 git repo https://github.com/pcwalton/fast-itoa 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] warning: unused manifest key: package.crate-type [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded plotters-svg v0.3.3 [INFO] [stderr] Downloaded ciborium-io v0.2.0 [INFO] [stderr] Downloaded plotters-backend v0.3.4 [INFO] [stderr] Downloaded ciborium-ll v0.2.0 [INFO] [stderr] Downloaded ciborium v0.2.0 [INFO] [stderr] Downloaded plotters v0.3.4 [INFO] [stderr] Downloaded web-sys v0.3.60 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e05d8585c6ecfece9a2899f31697bb023517d8355a555e5c334a604d1e800aea [INFO] running `Command { std: "docker" "start" "-a" "e05d8585c6ecfece9a2899f31697bb023517d8355a555e5c334a604d1e800aea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e05d8585c6ecfece9a2899f31697bb023517d8355a555e5c334a604d1e800aea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e05d8585c6ecfece9a2899f31697bb023517d8355a555e5c334a604d1e800aea", kill_on_drop: false }` [INFO] [stdout] e05d8585c6ecfece9a2899f31697bb023517d8355a555e5c334a604d1e800aea [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=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] c548907a391be2d8b6856011e4f3b7211598bde609cc277ac1c543fca9fd8102 [INFO] running `Command { std: "docker" "start" "-a" "c548907a391be2d8b6856011e4f3b7211598bde609cc277ac1c543fca9fd8102", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.crate-type [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling fast-itoa v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/itoa.rs:209:12 [INFO] [stdout] | [INFO] [stdout] 209 | return cDigitsLut.as_ptr(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s [INFO] running `Command { std: "docker" "inspect" "c548907a391be2d8b6856011e4f3b7211598bde609cc277ac1c543fca9fd8102", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c548907a391be2d8b6856011e4f3b7211598bde609cc277ac1c543fca9fd8102", kill_on_drop: false }` [INFO] [stdout] c548907a391be2d8b6856011e4f3b7211598bde609cc277ac1c543fca9fd8102 [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=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] 3a60bbeee07472d03e267c3cf6cae0a3e6659955b6ebc2e5445e7b13d52fc698 [INFO] running `Command { std: "docker" "start" "-a" "3a60bbeee07472d03e267c3cf6cae0a3e6659955b6ebc2e5445e7b13d52fc698", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.crate-type [INFO] [stderr] Compiling proc-macro2 v1.0.50 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling crossbeam-utils v0.8.14 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling serde_derive v1.0.152 [INFO] [stderr] Compiling crossbeam-epoch v0.9.13 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] Compiling either v1.8.0 [INFO] [stderr] Compiling rayon-core v1.10.1 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Compiling plotters-backend v0.3.4 [INFO] [stderr] Compiling getrandom v0.2.8 [INFO] [stderr] Compiling num_cpus v1.15.0 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling os_str_bytes v6.4.1 [INFO] [stderr] Compiling regex-syntax v0.6.28 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling itoa v1.0.5 [INFO] [stderr] Compiling ciborium-io v0.2.0 [INFO] [stderr] Compiling fastrand v1.8.0 [INFO] [stderr] Compiling ryu v1.0.12 [INFO] [stderr] Compiling half v1.8.2 [INFO] [stderr] Compiling clap_lex v0.2.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling plotters-svg v0.3.3 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling ciborium-ll v0.2.0 [INFO] [stderr] Compiling tempfile v3.3.0 [INFO] [stderr] Compiling cast v0.3.0 [INFO] [stderr] Compiling textwrap v0.16.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rusty-fork v0.3.0 [INFO] [stderr] Compiling crossbeam-channel v0.5.6 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling rand_xorshift v0.3.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling oorandom v11.1.3 [INFO] [stderr] Compiling anes v0.1.6 [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/itoa.rs:209:12 [INFO] [stdout] | [INFO] [stdout] 209 | return cDigitsLut.as_ptr(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "3a60bbeee07472d03e267c3cf6cae0a3e6659955b6ebc2e5445e7b13d52fc698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a60bbeee07472d03e267c3cf6cae0a3e6659955b6ebc2e5445e7b13d52fc698", kill_on_drop: false }` [INFO] [stdout] 3a60bbeee07472d03e267c3cf6cae0a3e6659955b6ebc2e5445e7b13d52fc698