[INFO] fetching crate atsam4lc8c 0.1.1...
[INFO] checking atsam4lc8c-0.1.1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate atsam4lc8c 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate atsam4lc8c 0.1.1 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking crates.io crate atsam4lc8c 0.1.1
[INFO] finished tweaking crates.io crate atsam4lc8c 0.1.1
[INFO] tweaked toml for crates.io crate atsam4lc8c 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cortex-m-log v0.2.0
[INFO] [stderr]   Downloaded panic-semihosting v0.2.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.5.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8036c7ac447ad9f01033dd39dba1ae78d2ab2ac8a48b80277f270e7c289dbfac
[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" "8036c7ac447ad9f01033dd39dba1ae78d2ab2ac8a48b80277f270e7c289dbfac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8036c7ac447ad9f01033dd39dba1ae78d2ab2ac8a48b80277f270e7c289dbfac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8036c7ac447ad9f01033dd39dba1ae78d2ab2ac8a48b80277f270e7c289dbfac", kill_on_drop: false }`
[INFO] [stdout] 8036c7ac447ad9f01033dd39dba1ae78d2ab2ac8a48b80277f270e7c289dbfac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5369c15daec99abb69a3ffefaec7bf667280e1039f83d0f59a20767544c9dc1c
[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" "5369c15daec99abb69a3ffefaec7bf667280e1039f83d0f59a20767544c9dc1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling atsam4lc8c v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking panic-semihosting v0.2.0
[INFO] [stderr]     Checking cortex-m-log v0.2.0
[INFO] [stdout] error: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stdout]     --> src/lib.rs:1445:9
[INFO] [stdout]      |
[INFO] [stdout] 1445 | #[allow(private_no_mangle_statics)]
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:3:9
[INFO] [stdout]      |
[INFO] [stdout] 3    | #![deny(warnings)]
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = note: `#[deny(renamed_and_removed_lints)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[lang = "panic_fmt"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `panic-semihosting`.
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0522`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5369c15daec99abb69a3ffefaec7bf667280e1039f83d0f59a20767544c9dc1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5369c15daec99abb69a3ffefaec7bf667280e1039f83d0f59a20767544c9dc1c", kill_on_drop: false }`
[INFO] [stdout] 5369c15daec99abb69a3ffefaec7bf667280e1039f83d0f59a20767544c9dc1c