[INFO] fetching crate cortex-m 0.5.11...
[INFO] checking cortex-m-0.5.11 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate cortex-m 0.5.11 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cortex-m 0.5.11 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cortex-m 0.5.11
[INFO] finished tweaking crates.io crate cortex-m 0.5.11
[INFO] tweaked toml for crates.io crate cortex-m 0.5.11 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d7e979f91b50bdb587cea6657d24ddf9a96b5e6d59c5207629b583dd79e6f359
[INFO] running `Command { std: "docker" "start" "-a" "d7e979f91b50bdb587cea6657d24ddf9a96b5e6d59c5207629b583dd79e6f359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7e979f91b50bdb587cea6657d24ddf9a96b5e6d59c5207629b583dd79e6f359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7e979f91b50bdb587cea6657d24ddf9a96b5e6d59c5207629b583dd79e6f359", kill_on_drop: false }`
[INFO] [stdout] d7e979f91b50bdb587cea6657d24ddf9a96b5e6d59c5207629b583dd79e6f359
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ed4f7f62afa34a7933a2ee8ebf7f93b3c6cdc931af4a931845b0a9b010faabc
[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" "6ed4f7f62afa34a7933a2ee8ebf7f93b3c6cdc931af4a931845b0a9b010faabc", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling cortex-m v0.7.1
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m v0.5.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking aligned v0.3.4
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> build.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{env, fs};
[INFO] [stdout]   |                ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out_dir`
[INFO] [stdout]  --> build.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_dir`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]  --> build.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let name = env::var("CARGO_PKG_NAME").unwrap();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/peripheral/scb.rs:185:38
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub const SCB_CCR_IC_MASK: u32 = (1 << 17);
[INFO] [stdout]     |                                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/peripheral/scb.rs:186:38
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub const SCB_CCR_DC_MASK: u32 = (1 << 16);
[INFO] [stdout]     |                                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/peripheral/scb.rs:185:38
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub const SCB_CCR_IC_MASK: u32 = (1 << 17);
[INFO] [stdout]     |                                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/peripheral/scb.rs:186:38
[INFO] [stdout]     |
[INFO] [stdout] 186 |     pub const SCB_CCR_DC_MASK: u32 = (1 << 16);
[INFO] [stdout]     |                                      ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `Command { std: "docker" "inspect" "6ed4f7f62afa34a7933a2ee8ebf7f93b3c6cdc931af4a931845b0a9b010faabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed4f7f62afa34a7933a2ee8ebf7f93b3c6cdc931af4a931845b0a9b010faabc", kill_on_drop: false }`
[INFO] [stdout] 6ed4f7f62afa34a7933a2ee8ebf7f93b3c6cdc931af4a931845b0a9b010faabc