[INFO] fetching crate salzweg 0.1.4...
[INFO] testing salzweg-0.1.4 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate salzweg 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate salzweg 0.1.4
[INFO] finished tweaking crates.io crate salzweg 0.1.4
[INFO] tweaked toml for crates.io crate salzweg 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate salzweg 0.1.4 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate salzweg 0.1.4 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6a12e51e0a15e2f07caa80b966adc971d0cee54a6bd6d8385cc5f4f99b280d7
[INFO] running `Command { std: "docker" "start" "-a" "a6a12e51e0a15e2f07caa80b966adc971d0cee54a6bd6d8385cc5f4f99b280d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6a12e51e0a15e2f07caa80b966adc971d0cee54a6bd6d8385cc5f4f99b280d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a12e51e0a15e2f07caa80b966adc971d0cee54a6bd6d8385cc5f4f99b280d7", kill_on_drop: false }`
[INFO] [stdout] a6a12e51e0a15e2f07caa80b966adc971d0cee54a6bd6d8385cc5f4f99b280d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8866f07547eb3e3cb442bc0cae91cd851c5a0c7bda74d9462686c8497ed3258a
[INFO] running `Command { std: "docker" "start" "-a" "8866f07547eb3e3cb442bc0cae91cd851c5a0c7bda74d9462686c8497ed3258a", kill_on_drop: false }`
[INFO] [stderr]    Compiling salzweg v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/io.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn iter(&mut self, amount: u8) -> BitReaderIterator<Self> {
[INFO] [stdout]   |             ^^^^^^^^^                 ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |             |
[INFO] [stdout]   |             the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn iter(&mut self, amount: u8) -> BitReaderIterator<'_, Self> {
[INFO] [stdout]   |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "8866f07547eb3e3cb442bc0cae91cd851c5a0c7bda74d9462686c8497ed3258a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8866f07547eb3e3cb442bc0cae91cd851c5a0c7bda74d9462686c8497ed3258a", kill_on_drop: false }`
[INFO] [stdout] 8866f07547eb3e3cb442bc0cae91cd851c5a0c7bda74d9462686c8497ed3258a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75a62452f019b0623b00387edbeab549053550eed5ab6de54a0f935773fe3a17
[INFO] running `Command { std: "docker" "start" "-a" "75a62452f019b0623b00387edbeab549053550eed5ab6de54a0f935773fe3a17", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling libc v0.2.136
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling ciborium-io v0.2.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 anyhow v1.0.66
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling ciborium-ll v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling atty v0.2.14
[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" "75a62452f019b0623b00387edbeab549053550eed5ab6de54a0f935773fe3a17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a62452f019b0623b00387edbeab549053550eed5ab6de54a0f935773fe3a17", kill_on_drop: false }`
[INFO] [stdout] 75a62452f019b0623b00387edbeab549053550eed5ab6de54a0f935773fe3a17
