[INFO] fetching crate from-singleton 2.0.1...
[INFO] testing from-singleton-2.0.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate from-singleton 2.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate from-singleton 2.0.1
[INFO] finished tweaking crates.io crate from-singleton 2.0.1
[INFO] tweaked toml for crates.io crate from-singleton 2.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate from-singleton 2.0.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate from-singleton 2.0.1 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1844a384f914c37164a867e49705bc832551acf6bb5a53b6607fae72acd98b4c
[INFO] running `Command { std: "docker" "start" "-a" "1844a384f914c37164a867e49705bc832551acf6bb5a53b6607fae72acd98b4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1844a384f914c37164a867e49705bc832551acf6bb5a53b6607fae72acd98b4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1844a384f914c37164a867e49705bc832551acf6bb5a53b6607fae72acd98b4c", kill_on_drop: false }`
[INFO] [stdout] 1844a384f914c37164a867e49705bc832551acf6bb5a53b6607fae72acd98b4c
[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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 268fdd3d72d33d7293b224b5533993cfcd8f83b956ced69260f3ac0a2199da1a
[INFO] running `Command { std: "docker" "start" "-a" "268fdd3d72d33d7293b224b5533993cfcd8f83b956ced69260f3ac0a2199da1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling windows-link v0.1.1
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling dataview v1.0.1
[INFO] [stderr]    Compiling no-std-compat v0.4.1
[INFO] [stderr]    Compiling pelite-macros v0.1.1
[INFO] [stderr]    Compiling windows-result v0.3.4
[INFO] [stderr]    Compiling windows-strings v0.4.2
[INFO] [stderr]    Compiling windows-threading v0.1.0
[INFO] [stderr]    Compiling pelite v0.10.0
[INFO] [stdout] error[E0659]: `std` is ambiguous
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/headers.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Range;
[INFO] [stdout]   |     ^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout]   = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]   = note: `std` could refer to a built-in crate
[INFO] [stdout]   = help: use `::std` to refer to this crate unambiguously
[INFO] [stdout] note: `std` could also refer to the crate imported here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/headers.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   = help: consider adding an explicit import of `std` to disambiguate
[INFO] [stdout]   = help: or use `self::std` to refer to this crate unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `std` is ambiguous
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/imports.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::slice;
[INFO] [stdout]   |     ^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout]   = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]   = note: `std` could refer to a built-in crate
[INFO] [stdout]   = help: use `::std` to refer to this crate unambiguously
[INFO] [stdout] note: `std` could also refer to the crate imported here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/imports.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   = help: consider adding an explicit import of `std` to disambiguate
[INFO] [stdout]   = help: or use `self::std` to refer to this crate unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `std` is ambiguous
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/debug.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 | use std::{fmt, str};
[INFO] [stdout]     |     ^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]     = note: `std` could refer to a built-in crate
[INFO] [stdout]     = help: use `::std` to refer to this crate unambiguously
[INFO] [stdout] note: `std` could also refer to the crate imported here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/debug.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `std` to disambiguate
[INFO] [stdout]     = help: or use `self::std` to refer to this crate unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `std` is ambiguous
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/scanner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Range;
[INFO] [stdout]   |     ^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout]   = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout]   = note: `std` could refer to a built-in crate
[INFO] [stdout]   = help: use `::std` to refer to this crate unambiguously
[INFO] [stdout] note: `std` could also refer to the crate imported here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pelite-0.10.0/src/wrap/scanner.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   = help: consider adding an explicit import of `std` to disambiguate
[INFO] [stdout]   = help: or use `self::std` to refer to this crate unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pelite` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "268fdd3d72d33d7293b224b5533993cfcd8f83b956ced69260f3ac0a2199da1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268fdd3d72d33d7293b224b5533993cfcd8f83b956ced69260f3ac0a2199da1a", kill_on_drop: false }`
[INFO] [stdout] 268fdd3d72d33d7293b224b5533993cfcd8f83b956ced69260f3ac0a2199da1a