[INFO] updating cached repository https://github.com/amty/magreader [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9517eb8dd8f39a6b7e90e63f38cb4d8a89237d62 [INFO] checking amty/magreader against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famty%2Fmagreader" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/amty/magreader on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/amty/magreader [INFO] finished tweaking git repo https://github.com/amty/magreader [INFO] tweaked toml for git repo https://github.com/amty/magreader written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/amty/magreader already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 55d59c52209c9464e06416d3b29e6dfe2cc33a7f448e19025d687cda93aad38f [INFO] running `"docker" "start" "-a" "55d59c52209c9464e06416d3b29e6dfe2cc33a7f448e19025d687cda93aad38f"` [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Checking pipeline v0.5.0 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Compiling regex v0.2.10 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Checking regex-syntax v0.5.5 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking csv-core v0.1.4 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Checking csv v1.0.0-beta.5 [INFO] [stderr] Compiling syn v0.13.4 [INFO] [stderr] Compiling serde_derive_internals v0.23.1 [INFO] [stderr] Compiling serde_derive v1.0.43 [INFO] [stderr] Checking markdown v0.2.0 (https://github.com/amty/markdown.rs#788aa512) [INFO] [stderr] Checking export-mags v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:70:37 [INFO] [stderr] | [INFO] [stderr] 70 | links = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:70:37 [INFO] [stderr] | [INFO] [stderr] 70 | links = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:93:37 [INFO] [stderr] | [INFO] [stderr] 93 | links = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:93:37 [INFO] [stderr] | [INFO] [stderr] 93 | links = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:127:24 [INFO] [stderr] | [INFO] [stderr] 127 | let (text, mut ls) = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:127:46 [INFO] [stderr] | [INFO] [stderr] 127 | let (text, mut ls) = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:127:24 [INFO] [stderr] | [INFO] [stderr] 127 | let (text, mut ls) = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:127:46 [INFO] [stderr] | [INFO] [stderr] 127 | let (text, mut ls) = if let Some(mut ls) = links { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.19s [INFO] running `"docker" "inspect" "55d59c52209c9464e06416d3b29e6dfe2cc33a7f448e19025d687cda93aad38f"` [INFO] running `"docker" "rm" "-f" "55d59c52209c9464e06416d3b29e6dfe2cc33a7f448e19025d687cda93aad38f"` [INFO] [stdout] 55d59c52209c9464e06416d3b29e6dfe2cc33a7f448e19025d687cda93aad38f