[INFO] fetching crate cortex-m-rt 0.7.3...
[INFO] checking cortex-m-rt-0.7.3 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate cortex-m-rt 0.7.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cortex-m-rt 0.7.3 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate cortex-m-rt 0.7.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cortex-m-rt 0.7.3
[INFO] tweaked toml for crates.io crate cortex-m-rt 0.7.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cortex-m-rt 0.7.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded panic-halt v0.2.0
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded tester v0.9.0
[INFO] [stderr]   Downloaded filetime v0.2.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ecb402be71c496c31f743344a06185ef21780e4022bfbb7cdc7262e7f7bad12
[INFO] running `Command { std: "docker" "start" "-a" "5ecb402be71c496c31f743344a06185ef21780e4022bfbb7cdc7262e7f7bad12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ecb402be71c496c31f743344a06185ef21780e4022bfbb7cdc7262e7f7bad12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ecb402be71c496c31f743344a06185ef21780e4022bfbb7cdc7262e7f7bad12", kill_on_drop: false }`
[INFO] [stdout] 5ecb402be71c496c31f743344a06185ef21780e4022bfbb7cdc7262e7f7bad12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 421d334a8fd98ded2c6777853fe41da0c37118876ecd4ce348e5a1851ef9a73d
[INFO] running `Command { std: "docker" "start" "-a" "421d334a8fd98ded2c6777853fe41da0c37118876ecd4ce348e5a1851ef9a73d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling compiletest_rs v0.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking filetime v0.2.20
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking cortex-m v0.7.7
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "421d334a8fd98ded2c6777853fe41da0c37118876ecd4ce348e5a1851ef9a73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "421d334a8fd98ded2c6777853fe41da0c37118876ecd4ce348e5a1851ef9a73d", kill_on_drop: false }`
[INFO] [stdout] 421d334a8fd98ded2c6777853fe41da0c37118876ecd4ce348e5a1851ef9a73d
[INFO] checking cortex-m-rt-0.7.3 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate cortex-m-rt 0.7.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate cortex-m-rt 0.7.3 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate cortex-m-rt 0.7.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cortex-m-rt 0.7.3
[INFO] tweaked toml for crates.io crate cortex-m-rt 0.7.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate cortex-m-rt 0.7.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68ed56668c0fd457cfd4c07fd94dd6cddfa13a6d75eefa285e26236a6895a8a2
[INFO] running `Command { std: "docker" "start" "-a" "68ed56668c0fd457cfd4c07fd94dd6cddfa13a6d75eefa285e26236a6895a8a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68ed56668c0fd457cfd4c07fd94dd6cddfa13a6d75eefa285e26236a6895a8a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ed56668c0fd457cfd4c07fd94dd6cddfa13a6d75eefa285e26236a6895a8a2", kill_on_drop: false }`
[INFO] [stdout] 68ed56668c0fd457cfd4c07fd94dd6cddfa13a6d75eefa285e26236a6895a8a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c32ee164828048bfac30531c4f8a922ca82cd8c4a76b9f60119490a134e1b363
[INFO] running `Command { std: "docker" "start" "-a" "c32ee164828048bfac30531c4f8a922ca82cd8c4a76b9f60119490a134e1b363", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling compiletest_rs v0.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking filetime v0.2.20
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking cortex-m v0.7.7
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c32ee164828048bfac30531c4f8a922ca82cd8c4a76b9f60119490a134e1b363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32ee164828048bfac30531c4f8a922ca82cd8c4a76b9f60119490a134e1b363", kill_on_drop: false }`
[INFO] [stdout] c32ee164828048bfac30531c4f8a922ca82cd8c4a76b9f60119490a134e1b363
