[INFO] fetching crate r3_port_arm_m 0.3.2...
[INFO] checking r3_port_arm_m-0.3.2 against master#2b443a8d97ff1f26c35e4bcf682bf9a89e8a66d2 for pr-100971
[INFO] extracting crate r3_port_arm_m 0.3.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate r3_port_arm_m 0.3.2 on toolchain 2b443a8d97ff1f26c35e4bcf682bf9a89e8a66d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2b443a8d97ff1f26c35e4bcf682bf9a89e8a66d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate r3_port_arm_m 0.3.2
[INFO] finished tweaking crates.io crate r3_port_arm_m 0.3.2
[INFO] tweaked toml for crates.io crate r3_port_arm_m 0.3.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2b443a8d97ff1f26c35e4bcf682bf9a89e8a66d2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2b443a8d97ff1f26c35e4bcf682bf9a89e8a66d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokenlock v0.3.8
[INFO] [stderr]   Downloaded macropol v0.1.3
[INFO] [stderr]   Downloaded elain v0.3.0
[INFO] [stderr]   Downloaded r3_core v0.1.3
[INFO] [stderr]   Downloaded r3_portkit v0.2.2
[INFO] [stderr]   Downloaded r3_kernel v0.1.3
[INFO] [stderr]   Downloaded svgbobdoc v0.3.0
[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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+2b443a8d97ff1f26c35e4bcf682bf9a89e8a66d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1ac9d13ee7e2f37da00d14a75941a8a333edd3105f3dd0b8b2ff0ec9a6349ae
[INFO] running `Command { std: "docker" "start" "-a" "c1ac9d13ee7e2f37da00d14a75941a8a333edd3105f3dd0b8b2ff0ec9a6349ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1ac9d13ee7e2f37da00d14a75941a8a333edd3105f3dd0b8b2ff0ec9a6349ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ac9d13ee7e2f37da00d14a75941a8a333edd3105f3dd0b8b2ff0ec9a6349ae", kill_on_drop: false }`
[INFO] [stdout] c1ac9d13ee7e2f37da00d14a75941a8a333edd3105f3dd0b8b2ff0ec9a6349ae
[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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+2b443a8d97ff1f26c35e4bcf682bf9a89e8a66d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55cff203cb1c835bb8f070a994565a76a23bcab10da9b2c345686835216b7d3c
[INFO] running `Command { std: "docker" "start" "-a" "55cff203cb1c835bb8f070a994565a76a23bcab10da9b2c345686835216b7d3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking elain v0.3.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling seq-macro v0.3.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling r3_port_arm_m v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling tokenlock v0.3.8
[INFO] [stderr]    Compiling darling_core v0.14.1
[INFO] [stderr]    Compiling svgbobdoc v0.3.0
[INFO] [stderr]    Compiling darling_macro v0.14.1
[INFO] [stderr]    Compiling darling v0.14.1
[INFO] [stderr]    Compiling macropol v0.1.3
[INFO] [stderr]     Checking r3_core v0.1.3
[INFO] [stderr]     Checking r3_kernel v0.1.3
[INFO] [stderr]     Checking r3_portkit v0.2.2
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.97s
[INFO] running `Command { std: "docker" "inspect" "55cff203cb1c835bb8f070a994565a76a23bcab10da9b2c345686835216b7d3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55cff203cb1c835bb8f070a994565a76a23bcab10da9b2c345686835216b7d3c", kill_on_drop: false }`
[INFO] [stdout] 55cff203cb1c835bb8f070a994565a76a23bcab10da9b2c345686835216b7d3c