[INFO] crate const_env--value 0.1.2 is already in cache
[INFO] testing const_env--value-0.1.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate const_env--value 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate const_env--value 0.1.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate const_env--value 0.1.2
[INFO] finished tweaking crates.io crate const_env--value 0.1.2
[INFO] tweaked toml for crates.io crate const_env--value 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate const_env--value 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd843d67e1cd29433baced16618061da34bde7eff00de3ee5d2497f82dec9d77
[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" "bd843d67e1cd29433baced16618061da34bde7eff00de3ee5d2497f82dec9d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd843d67e1cd29433baced16618061da34bde7eff00de3ee5d2497f82dec9d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd843d67e1cd29433baced16618061da34bde7eff00de3ee5d2497f82dec9d77", kill_on_drop: false }`
[INFO] [stdout] bd843d67e1cd29433baced16618061da34bde7eff00de3ee5d2497f82dec9d77
[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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4445438df2257f3916b6e5d79eb12719665120a881bf2dd519f91113a0bf4c68
[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" "4445438df2257f3916b6e5d79eb12719665120a881bf2dd519f91113a0bf4c68", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling const_env_impl--value v0.1.2
[INFO] [stderr]    Compiling const_env--value v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.31s
[INFO] running `Command { std: "docker" "inspect" "4445438df2257f3916b6e5d79eb12719665120a881bf2dd519f91113a0bf4c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4445438df2257f3916b6e5d79eb12719665120a881bf2dd519f91113a0bf4c68", kill_on_drop: false }`
[INFO] [stdout] 4445438df2257f3916b6e5d79eb12719665120a881bf2dd519f91113a0bf4c68
[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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1e619375548c81dba817ef1872529e6b24e920da123f9595f277cfcad945fae
[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" "b1e619375548c81dba817ef1872529e6b24e920da123f9595f277cfcad945fae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling compiletest_rs v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling filetime v0.2.10
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling tester v0.7.0
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling rustfix v0.5.1
[INFO] [stderr]    Compiling const_env--value v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]  --> examples/value.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SMOKE_U32: u32 = value_from_env!("SMOKE_U32": u32);
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: no value available for environment variable 'SMOKE_U32'
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `const_env--value`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b1e619375548c81dba817ef1872529e6b24e920da123f9595f277cfcad945fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e619375548c81dba817ef1872529e6b24e920da123f9595f277cfcad945fae", kill_on_drop: false }`
[INFO] [stdout] b1e619375548c81dba817ef1872529e6b24e920da123f9595f277cfcad945fae