[INFO] fetching crate cargo-msrv 0.12.0...
[INFO] checking cargo-msrv-0.12.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate cargo-msrv 0.12.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cargo-msrv 0.12.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-msrv 0.12.0
[INFO] finished tweaking crates.io crate cargo-msrv 0.12.0
[INFO] tweaked toml for crates.io crate cargo-msrv 0.12.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cargo-msrv 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70fb4330ebe939e928228c0d9929e821ed4389cbc68c7358e8117bf1ae75800a
[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" "70fb4330ebe939e928228c0d9929e821ed4389cbc68c7358e8117bf1ae75800a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70fb4330ebe939e928228c0d9929e821ed4389cbc68c7358e8117bf1ae75800a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70fb4330ebe939e928228c0d9929e821ed4389cbc68c7358e8117bf1ae75800a", kill_on_drop: false }`
[INFO] [stdout] 70fb4330ebe939e928228c0d9929e821ed4389cbc68c7358e8117bf1ae75800a
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 4a2e7b9ffdf97a9aef23abf7dfcd5d7edc6147f893db95caec434a868e70b45f
[INFO] running `Command { std: "docker" "start" "-a" "4a2e7b9ffdf97a9aef23abf7dfcd5d7edc6147f893db95caec434a868e70b45f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking bytes v1.1.0
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[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.17
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[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
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[INFO] [stderr]    Compiling serde_json v1.0.68
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[INFO] [stderr]    Compiling parking_lot_core v0.8.5
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[INFO] [stderr]    Compiling futures-macro v0.3.17
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[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]     Checking tracing-core v0.1.21
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[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
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[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling rusoto_core v0.46.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking combine v4.6.2
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[INFO] [stderr]    Compiling openssl-sys v0.9.70
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.1
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[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking hmac v0.10.1
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[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
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[INFO] [stderr]     Checking crossterm v0.20.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking attohttpc v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v1.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling typed-builder v0.9.1
[INFO] [stderr]    Compiling yare-macro v1.0.1
[INFO] [stderr]    Compiling parameterized-macro v0.3.1
[INFO] [stderr]     Checking yare v1.0.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking parameterized v0.3.1
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking comfy-table v4.1.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking rust-releases-io v0.16.0
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[INFO] [stderr]     Checking serde v1.0.130
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[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking cargo-platform v0.1.2
[INFO] [stderr]     Checking kstring v1.0.5
[INFO] [stderr]     Checking toml_edit v0.6.0
[INFO] [stderr]     Checking rust-releases-core v0.16.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.1
[INFO] [stderr]     Checking cargo_metadata v0.14.1
[INFO] [stderr]     Checking rusoto_credential v0.46.0
[INFO] [stderr]     Checking rust-releases-rust-changelog v0.16.0
[INFO] [stderr]     Checking rusoto_signature v0.46.0
[INFO] [stderr]     Checking tracing-appender v0.2.0
[INFO] [stderr]     Checking rusoto_s3 v0.46.0
[INFO] [stderr]     Checking rust-releases-rust-dist v0.16.0
[INFO] [stderr]     Checking rust-releases v0.16.1
[INFO] [stderr]     Checking cargo-msrv v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 35s
[INFO] running `Command { std: "docker" "inspect" "4a2e7b9ffdf97a9aef23abf7dfcd5d7edc6147f893db95caec434a868e70b45f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2e7b9ffdf97a9aef23abf7dfcd5d7edc6147f893db95caec434a868e70b45f", kill_on_drop: false }`
[INFO] [stdout] 4a2e7b9ffdf97a9aef23abf7dfcd5d7edc6147f893db95caec434a868e70b45f