[INFO] fetching crate oci-registry-client 0.2.1...
[INFO] checking oci-registry-client-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate oci-registry-client 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate oci-registry-client 0.2.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oci-registry-client 0.2.1
[INFO] finished tweaking crates.io crate oci-registry-client 0.2.1
[INFO] tweaked toml for crates.io crate oci-registry-client 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate oci-registry-client 0.2.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hermit-abi v0.2.6
[INFO] [stderr]   Downloaded num_cpus v1.15.0
[INFO] [stderr]   Downloaded ipnet v2.7.2
[INFO] [stderr]   Downloaded schannel v0.1.21
[INFO] [stderr]   Downloaded security-framework v2.9.1
[INFO] [stderr]   Downloaded h2 v0.3.19
[INFO] [stderr]   Downloaded hyper v0.14.26
[INFO] [stderr]   Downloaded security-framework-sys v2.9.0
[INFO] [stderr]   Downloaded tempfile v3.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3145f63f63dc62136d51eecb56cd6227ab4284840938683765b63271795b697
[INFO] running `Command { std: "docker" "start" "-a" "c3145f63f63dc62136d51eecb56cd6227ab4284840938683765b63271795b697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3145f63f63dc62136d51eecb56cd6227ab4284840938683765b63271795b697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3145f63f63dc62136d51eecb56cd6227ab4284840938683765b63271795b697", kill_on_drop: false }`
[INFO] [stdout] c3145f63f63dc62136d51eecb56cd6227ab4284840938683765b63271795b697
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fc728b5f91bc773521625e3a49aea39f6844ca8c715fa05267f2c979f4030aa
[INFO] running `Command { std: "docker" "start" "-a" "2fc728b5f91bc773521625e3a49aea39f6844ca8c715fa05267f2c979f4030aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking openssl-sys v0.9.90
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]     Checking openssl v0.10.55
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.19
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.26
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.18
[INFO] [stderr]     Checking oci-registry-client v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/blob.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use reqwest;
[INFO] [stdout]    |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/blob.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use reqwest;
[INFO] [stdout]    |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[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] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> examples/oci-image-manifest.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.34s
[INFO] running `Command { std: "docker" "inspect" "2fc728b5f91bc773521625e3a49aea39f6844ca8c715fa05267f2c979f4030aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc728b5f91bc773521625e3a49aea39f6844ca8c715fa05267f2c979f4030aa", kill_on_drop: false }`
[INFO] [stdout] 2fc728b5f91bc773521625e3a49aea39f6844ca8c715fa05267f2c979f4030aa
[INFO] checking oci-registry-client-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate oci-registry-client 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate oci-registry-client 0.2.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oci-registry-client 0.2.1
[INFO] finished tweaking crates.io crate oci-registry-client 0.2.1
[INFO] tweaked toml for crates.io crate oci-registry-client 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate oci-registry-client 0.2.1 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6066a3f64f399ef1a62d9edfa86fc0c124a471e19f701d2b65e5c8a5fb7e15a
[INFO] running `Command { std: "docker" "start" "-a" "d6066a3f64f399ef1a62d9edfa86fc0c124a471e19f701d2b65e5c8a5fb7e15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6066a3f64f399ef1a62d9edfa86fc0c124a471e19f701d2b65e5c8a5fb7e15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6066a3f64f399ef1a62d9edfa86fc0c124a471e19f701d2b65e5c8a5fb7e15a", kill_on_drop: false }`
[INFO] [stdout] d6066a3f64f399ef1a62d9edfa86fc0c124a471e19f701d2b65e5c8a5fb7e15a
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdf829677a3177445a3742acffee2f4642669f2802544017d6ae749e6ef1c5d0
[INFO] running `Command { std: "docker" "start" "-a" "fdf829677a3177445a3742acffee2f4642669f2802544017d6ae749e6ef1c5d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking openssl-sys v0.9.90
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]     Checking openssl v0.10.55
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.19
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.26
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.18
[INFO] [stderr]     Checking oci-registry-client v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/blob.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use reqwest;
[INFO] [stdout]    |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/blob.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use reqwest;
[INFO] [stdout]    |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> examples/oci-image-manifest.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.88s
[INFO] running `Command { std: "docker" "inspect" "fdf829677a3177445a3742acffee2f4642669f2802544017d6ae749e6ef1c5d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf829677a3177445a3742acffee2f4642669f2802544017d6ae749e6ef1c5d0", kill_on_drop: false }`
[INFO] [stdout] fdf829677a3177445a3742acffee2f4642669f2802544017d6ae749e6ef1c5d0