[INFO] fetching crate m17core 0.1.0...
[INFO] checking m17core-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate m17core 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate m17core 0.1.0
[INFO] finished tweaking crates.io crate m17core 0.1.0
[INFO] tweaked toml for crates.io crate m17core 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate m17core 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8b2854890fd1e4c897bb5e0da9f1416b7771309ebac0732655636875bef63ba
[INFO] running `Command { std: "docker" "start" "-a" "b8b2854890fd1e4c897bb5e0da9f1416b7771309ebac0732655636875bef63ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8b2854890fd1e4c897bb5e0da9f1416b7771309ebac0732655636875bef63ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b2854890fd1e4c897bb5e0da9f1416b7771309ebac0732655636875bef63ba", kill_on_drop: false }`
[INFO] [stdout] b8b2854890fd1e4c897bb5e0da9f1416b7771309ebac0732655636875bef63ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f67776006f786a16d6d2d440162a07a71e0a85bb97bba14f7f8a2594c6b5d1d1
[INFO] running `Command { std: "docker" "start" "-a" "f67776006f786a16d6d2d440162a07a71e0a85bb97bba14f7f8a2594c6b5d1d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking crc v3.3.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking binfield_matrix v0.2.0
[INFO] [stderr]     Checking cai_golay v0.1.1
[INFO] [stderr]     Checking m17core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bits.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub(crate) fn iter(&self) -> BitsIterator<T> {
[INFO] [stdout]    |                        ^^^^^     --------------- the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub(crate) fn iter(&self) -> BitsIterator<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bits.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub(crate) fn iter(&self) -> BitsIterator<T> {
[INFO] [stdout]    |                        ^^^^^     --------------- the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub(crate) fn iter(&self) -> BitsIterator<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "f67776006f786a16d6d2d440162a07a71e0a85bb97bba14f7f8a2594c6b5d1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f67776006f786a16d6d2d440162a07a71e0a85bb97bba14f7f8a2594c6b5d1d1", kill_on_drop: false }`
[INFO] [stdout] f67776006f786a16d6d2d440162a07a71e0a85bb97bba14f7f8a2594c6b5d1d1