[INFO] updating cached repository https://github.com/Emurgo/cddl-codegen
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/Emurgo/cddl-codegen
[INFO] [stderr]    ad9bb8b..ac7e257  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac7e25765a72dafe80b81147e583a6b38690025a
[INFO] checking Emurgo/cddl-codegen against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmurgo%2Fcddl-codegen" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Emurgo/cddl-codegen on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Emurgo/cddl-codegen
[INFO] finished tweaking git repo https://github.com/Emurgo/cddl-codegen
[INFO] tweaked toml for git repo https://github.com/Emurgo/cddl-codegen written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Emurgo/cddl-codegen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ce318c434b32a6d4d9cf7ee18b4712c28f7b06fb43b97aeb709c25584a57e72
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3ce318c434b32a6d4d9cf7ee18b4712c28f7b06fb43b97aeb709c25584a57e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ce318c434b32a6d4d9cf7ee18b4712c28f7b06fb43b97aeb709c25584a57e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ce318c434b32a6d4d9cf7ee18b4712c28f7b06fb43b97aeb709c25584a57e72", kill_on_drop: false }`
[INFO] [stdout] 3ce318c434b32a6d4d9cf7ee18b4712c28f7b06fb43b97aeb709c25584a57e72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adba5ff461bb077a2064a177b3eb2008c14c16eca6549892c481385cf96b157d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "adba5ff461bb077a2064a177b3eb2008c14c16eca6549892c481385cf96b157d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking half v1.4.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking annotate-snippets v0.7.0
[INFO] [stderr]     Checking base16 v0.2.1
[INFO] [stderr]     Checking cbor_event v2.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking crossterm_utils v0.2.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossterm_screen v0.2.5
[INFO] [stderr]     Checking crossterm_cursor v0.2.6
[INFO] [stderr]     Checking crossterm_style v0.3.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossterm_input v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking crossterm_terminal v0.2.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossterm v0.9.6
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling lexical v4.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking codegen v0.1.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking serde_cbor v0.10.2
[INFO] [stderr]     Checking cddl v0.5.2
[INFO] [stderr]     Checking cddl_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1899:10
[INFO] [stdout]      |
[INFO] [stdout] 1899 |     let (mut ser_func, mut ser_impl, mut ser_embedded_impl) =
[INFO] [stdout]      |          ----^^^^^^^^
[INFO] [stdout]      |          |
[INFO] [stdout]      |          help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1899:10
[INFO] [stdout]      |
[INFO] [stdout] 1899 |     let (mut ser_func, mut ser_impl, mut ser_embedded_impl) =
[INFO] [stdout]      |          ----^^^^^^^^
[INFO] [stdout]      |          |
[INFO] [stdout]      |          help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "adba5ff461bb077a2064a177b3eb2008c14c16eca6549892c481385cf96b157d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adba5ff461bb077a2064a177b3eb2008c14c16eca6549892c481385cf96b157d", kill_on_drop: false }`
[INFO] [stdout] adba5ff461bb077a2064a177b3eb2008c14c16eca6549892c481385cf96b157d