[INFO] fetching crate tc-value 0.1.12...
[INFO] checking tc-value-0.1.12 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate tc-value 0.1.12 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate tc-value 0.1.12 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tc-value 0.1.12
[INFO] finished tweaking crates.io crate tc-value 0.1.12
[INFO] tweaked toml for crates.io crate tc-value 0.1.12 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded collate v0.1.10
[INFO] [stderr]   Downloaded tcgeneric v0.2.1
[INFO] [stderr]   Downloaded number-general v0.3.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d095172fd9c7911ed19b538bc42491f1c033ab89e392ac498c32d05db0d536a
[INFO] running `Command { std: "docker" "start" "-a" "1d095172fd9c7911ed19b538bc42491f1c033ab89e392ac498c32d05db0d536a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d095172fd9c7911ed19b538bc42491f1c033ab89e392ac498c32d05db0d536a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d095172fd9c7911ed19b538bc42491f1c033ab89e392ac498c32d05db0d536a", kill_on_drop: false }`
[INFO] [stdout] 1d095172fd9c7911ed19b538bc42491f1c033ab89e392ac498c32d05db0d536a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5102cecdf3013eb5c2286daff8e7a87e3416ff4f93e8bcf89832c605ddc7dad2
[INFO] running `Command { std: "docker" "start" "-a" "5102cecdf3013eb5c2286daff8e7a87e3416ff4f93e8bcf89832c605ddc7dad2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking safecast v0.1.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking collate v0.1.10
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking destream v0.5.0
[INFO] [stderr]     Checking tc-error v0.2.4
[INFO] [stderr]     Checking number-general v0.3.10
[INFO] [stderr]     Checking tcgeneric v0.2.1
[INFO] [stderr]     Checking tc-value v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.41s
[INFO] running `Command { std: "docker" "inspect" "5102cecdf3013eb5c2286daff8e7a87e3416ff4f93e8bcf89832c605ddc7dad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5102cecdf3013eb5c2286daff8e7a87e3416ff4f93e8bcf89832c605ddc7dad2", kill_on_drop: false }`
[INFO] [stdout] 5102cecdf3013eb5c2286daff8e7a87e3416ff4f93e8bcf89832c605ddc7dad2